(function(exports){
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
“use strict”;function characters(str){return str.split(“”)}function
member(name,array){return array.indexOf(name)>=0}function
find_if(func,array){for(var i=0,n=array.length;i<n;++i){if(func(array))return array}}function
repeat_string(str,i){if(i<=0)return“”;if(i==1)return str;var
d=repeat_string(str,i>>1);d+=d;if(i&1)d+=str;return d}function
configure_error_stack(fn){Object.defineProperty(fn.prototype,“stack”,{get:function(){var
err=new Error(this.message);err.name=this.name;try{throw
err}catch(e){return e.stack}}})}function
DefaultsError(msg,defs){this.message=msg;this.defs=defs}DefaultsError.prototype=Object.create(Error.prototype);DefaultsError.prototype.constructor=DefaultsError;DefaultsError.prototype.name=“DefaultsError”;configure_error_stack(DefaultsError);DefaultsError.croak=function(msg,defs){throw
new DefaultsError(msg,defs)};function
defaults(args,defs,croak){if(args===true)args={};var
ret=args||{};if(croak)for(var i in
ret)if(HOP(ret,i)&&!HOP(defs,i))DefaultsError.croak(“`”i
“`
is not a supported option”,defs);for(var i in defs)if(HOP(defs,i)){ret=args&&HOP(args,i)?args:defs}return ret}function merge(obj,ext){var count=0;for(var i
in ext)if(HOP(ext,i)){obj=ext;count++}return count}function noop(){}function
return_false(){return false}function return_true(){return true}function
return_this(){return this}function return_null(){return null}var
MAP=function(){function MAP(a,f,backwards){var ret=[],top=,i;function doit(){var val=f(a,i);var is_last=val instanceof
Last;if(is_last)val=val.v;if(val instanceof AtTop){val=val.v;if(val
instanceof
Splice){top.push.apply(top,backwards?val.v.slice().reverse():val.v)}else{top.push(val)}}else
if(val!==skip){if(val instanceof
Splice){ret.push.apply(ret,backwards?val.v.slice().reverse():val.v)}else{ret.push(val)}}return
is_last}if(a instanceof
Array){if(backwards){for(i=a.length;–i>=0;)if(doit())break;ret.reverse();top.reverse()}else{for(i=0;i<a.length;++i)if(doit())break}}else{for(i
in a)if(HOP(a,i))if(doit())break}return
top.concat(ret)}MAP.at_top=function(val){return new
AtTop(val)};MAP.splice=function(val){return new
Splice(val)};MAP.last=function(val){return new Last(val)};var
skip=MAP.skip={};function AtTop(val){this.v=val}function
Splice(val){this.v=val}function Last(val){this.v=val}return MAP}();function
push_uniq(array,el){if(array.indexOf(el)<0)array.push(el)}function
string_template(text,props){return
text.replace(/{(.+?)}/g,function(str,p){return props&&props})}function remove(array,el){for(var
i=array.length;–i>=0;){if(array===el)array.splice(i,1)}}function
mergeSort(array,cmp){if(array.length<2)return array.slice();function
merge(a,b){var r=[],ai=0,bi=0,i=0;while(ai
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
“use strict”;function
DEFNODE(type,props,methods,base){if(arguments.length<4)base=AST_Node;if(!props)props=[];else
props=props.split(/s+/);var
self_props=props;if(base&&base.PROPS)props=props.concat(base.PROPS);var
code=“return function AST_”type
“(props){ if (props) {
”;for(var i=props.length;–i>=0;){code+=“this.”+props+“ =
props.”+props+“;”}var proto=base&&new
base;if(proto&&proto.initialize||methods&&methods.initialize)code+=“this.initialize();”;code+=“}}”;var
ctor=new
Function(code)();if(proto){ctor.prototype=proto;ctor.BASE=base}if(base)base.SUBCLASSES.push(ctor);ctor.prototype.CTOR=ctor;ctor.PROPS=props||null;ctor.SELF_PROPS=self_props;ctor.SUBCLASSES=[];if(type){ctor.prototype.TYPE=ctor.TYPE=type}if(methods)for(i
in methods)if(HOP(methods,i)){if(/^$/.test(i)){ctor=methods}else{ctor.prototype=methods}}ctor.DEFMETHOD=function(name,method){this.prototype=method};if(typeof exports!==“undefined”){exports=ctor}return ctor}var
AST_Token=DEFNODE(“Token”,“type value line col pos endline endcol endpos
nlb comments_before comments_after file raw”,{},null);var
AST_Node=DEFNODE(“Node”,“start end”,{_clone:function(deep){if(deep){var
self=this.clone();return self.transform(new
TreeTransformer(function(node){if(node!==self){return
node.clone(true)}}))}return new
this.CTOR(this)},clone:function(deep){return
this._clone(deep)},$documentation:“Base class of all AST
nodes”,$propdoc:{start:“ The first token of this node”,end:“ The last token of this
node”},_walk:function(visitor){return
visitor._visit(this)},walk:function(visitor){return
this._walk(visitor)}},null);AST_Node.warn_function=null;AST_Node.warn=function(txt,props){if(AST_Node.warn_function)AST_Node.warn_function(string_template(txt,props))};var
AST_Statement=DEFNODE(“Statement”,null,{$documentation:“Base class of all
statements”});var
AST_Debugger=DEFNODE(“Debugger”,null,{$documentation:“Represents a debugger
statement”},AST_Statement);var AST_Directive=DEFNODE(“Directive”,“value
quote”,{$documentation:'Represents a directive, like “use
strict”;',$propdoc:{value:“ The value of this
directive as a plain string (it's not an AST_String!)”,quote:“ the original quote
character”}},AST_Statement);var
AST_SimpleStatement=DEFNODE(“SimpleStatement”,“body”,{$documentation:“A
statement consisting of an expression, i.e. a = 1 + 2”,$propdoc:{body:“ an expression node (should not be instanceof
AST_Statement)”},_walk:function(visitor){return
visitor._visit(this,function(){this.body._walk(visitor)})}},AST_Statement);function
walk_body(node,visitor){var body=node.body;if(body instanceof
AST_Node){body._walk(visitor)}else for(var
i=0,len=body.length;i<len;i++){body._walk(visitor)}}var
AST_Block=DEFNODE(“Block”,“body”,{$documentation:“A body of statements
(usually bracketed)”,$propdoc:{body:“ an array
of statements”},_walk:function(visitor){return
visitor._visit(this,function(){walk_body(this,visitor)})}},AST_Statement);var
AST_BlockStatement=DEFNODE(“BlockStatement”,null,{$documentation:“A block
statement”},AST_Block);var
AST_EmptyStatement=DEFNODE(“EmptyStatement”,null,{$documentation:“The empty
statement (empty block or simply a semicolon)”},AST_Statement);var
AST_StatementWithBody=DEFNODE(“StatementWithBody”,“body”,{$documentation:“Base
class for all statements that contain one nested body: `For`, `ForIn`,
`Do`, `While`, `With`”,$propdoc:{body:“ the
body; this should always be present, even if it's an
AST_EmptyStatement”}},AST_Statement);var
AST_LabeledStatement=DEFNODE(“LabeledStatement”,“label”,{$documentation:“Statement
with a label”,$propdoc:{label:“ a label
definition”},_walk:function(visitor){return
visitor._visit(this,function(){this.label._walk(visitor);this.body._walk(visitor)})},clone:function(deep){var
node=this._clone(deep);if(deep){var label=node.label;var
def=this.label;node.walk(new TreeWalker(function(node){if(node instanceof
AST_LoopControl&&node.label&&node.label.thedef===def){node.label.thedef=label;label.references.push(node)}}))}return
node}},AST_StatementWithBody);var
AST_IterationStatement=DEFNODE(“IterationStatement”,null,{$documentation:“Internal
class. All loops inherit from it.”},AST_StatementWithBody);var
AST_DWLoop=DEFNODE(“DWLoop”,“condition”,{$documentation:“Base class for
do/while statements”,$propdoc:{condition:“ the loop
condition. Should not be instanceof
AST_Statement”}},AST_IterationStatement);var
AST_Do=DEFNODE(“Do”,null,{$documentation:“A `do`
statement”,_walk:function(visitor){return
visitor._visit(this,function(){this.body._walk(visitor);this.condition._walk(visitor)})}},AST_DWLoop);var
AST_While=DEFNODE(“While”,null,{$documentation:“A `while`
statement”,_walk:function(visitor){return
visitor._visit(this,function(){this.condition._walk(visitor);this.body._walk(visitor)})}},AST_DWLoop);var
AST_For=DEFNODE(“For”,“init condition step”,{$documentation:“A `for`
statement”,$propdoc:{init:“ the `for`
initialization code, or null if empty”,condition:“
the `for` termination clause, or null if empty”,step:“ the `for` update clause, or null if
empty”},_walk:function(visitor){return
visitor._visit(this,function(){if(this.init)this.init._walk(visitor);if(this.condition)this.condition._walk(visitor);if(this.step)this.step._walk(visitor);this.body._walk(visitor)})}},AST_IterationStatement);var
AST_ForIn=DEFNODE(“ForIn”,“init object”,{$documentation:“A `for … in`
statement”,$propdoc:{init:“ the `for/in`
initialization code”,object:“ the object that
we're looping through”},_walk:function(visitor){return
visitor._visit(this,function(){this.init._walk(visitor);this.object._walk(visitor);this.body._walk(visitor)})}},AST_IterationStatement);var
AST_ForOf=DEFNODE(“ForOf”,null,{$documentation:“A `for … of`
statement”},AST_ForIn);var
AST_With=DEFNODE(“With”,“expression”,{$documentation:“A `with`
statement”,$propdoc:{expression:“ the `with`
expression”},_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor);this.body._walk(visitor)})}},AST_StatementWithBody);var
AST_Scope=DEFNODE(“Scope”,“variables functions uses_with uses_eval
parent_scope enclosed cname”,{$documentation:“Base class for all statements
introducing a lexical scope”,$propdoc:{variables:“ a
map of name -> SymbolDef for all variables/functions defined in this scope”,functions:“ like `variables`, but only lists
function declarations”,uses_with:“ tells whether
this scope uses the `with` statement”,uses_eval:“
tells whether this scope contains a direct call to the global `eval`”,parent_scope:“ link to the parent scope”,enclosed:“ a list of all symbol definitions
that are accessed from this scope or any subscopes”,cname:“ current index for mangling
variables (used internally by the mangler)”},get_defun_scope:function(){var
self=this;while(self.is_block_scope()){self=self.parent_scope}return
self},clone:function(deep){var
node=this._clone(deep);if(this.variables)node.variables=this.variables.clone();if(this.functions)node.functions=this.functions.clone();if(this.enclosed)node.enclosed=this.enclosed.slice();return
node}},AST_Block);var
AST_Toplevel=DEFNODE(“Toplevel”,“globals”,{$documentation:“The toplevel
scope”,$propdoc:{globals:“ a map of name ->
SymbolDef for all undeclared names”},wrap_commonjs:function(name){var
body=this.body;var wrapped_tl=“(function(exports){'$ORIG';})(typeof
”name
“=='undefined'?(”name
“={}):”name
“);”;wrapped_tl=parse(wrapped_tl);wrapped_tl=wrapped_tl.transform(new
TreeTransformer(function before(node){if(node instanceof
AST_Directive&&node.value==“$ORIG”){return
MAP.splice(body)}}));return wrapped_tl}},AST_Scope);var
AST_Expansion=DEFNODE(“Expansion”,“expression”,{$documentation:“An
expandible argument, such as …rest, a splat, such as [1,2,…all], or an
expansion in a variable declaration, such as var [first, …rest] =
list”,$propdoc:{expression:“ the thing to be
expanded”},_walk:function(visitor){var self=this;return
visitor._visit(this,function(){self.expression.walk(visitor)})}});var
AST_Lambda=DEFNODE(“Lambda”,“name argnames uses_arguments is_generator
async”,{$documentation:“Base class for functions”,$propdoc:{name:“ the name of this function”,argnames:“
array of function arguments, destructurings, or expanding arguments”,uses_arguments:“ tells whether this
function accesses the arguments array”,is_generator:“
is this a generator method”,async:“ is this method
async”},args_as_names:function(){var out=[];for(var
i=0;i<this.argnames.length;i++){if(this.argnamesinstanceof AST_Destructuring){out=out.concat(this.argnames.all_symbols())}else{out.push(this.argnames)}}return
out},_walk:function(visitor){return
visitor._visit(this,function(){if(this.name)this.name._walk(visitor);var
argnames=this.argnames;for(var i=0,len=argnames.length;i<len;i++){argnames._walk(visitor)}walk_body(this,visitor)})}},AST_Scope);var
AST_Accessor=DEFNODE(“Accessor”,null,{$documentation:“A setter/getter
function. The `name` property is always null.”},AST_Lambda);var
AST_Function=DEFNODE(“Function”,“inlined”,{$documentation:“A function
expression”},AST_Lambda);var
AST_Arrow=DEFNODE(“Arrow”,“inlined”,{$documentation:“An ES6 Arrow function
((a) => b)”},AST_Lambda);var
AST_Defun=DEFNODE(“Defun”,“inlined”,{$documentation:“A function
definition”},AST_Lambda);var
AST_Destructuring=DEFNODE(“Destructuring”,“names
is_array”,{$documentation:“A destructuring of several names. Used in
destructuring assignment and with destructuring function argument
names”,$propdoc:{names:“ Array of properties or elements”,is_array:“ Whether the destructuring
represents an object or array”},_walk:function(visitor){return
visitor._visit(this,function(){this.names.forEach(function(name){name._walk(visitor)})})},all_symbols:function(){var
out=[];this.walk(new TreeWalker(function(node){if(node instanceof
AST_Symbol){out.push(node)}if(node instanceof
AST_Expansion){out.push(node.expression)}}));return out}});var
AST_PrefixedTemplateString=DEFNODE(“PrefixedTemplateString”,“template_string
prefix”,{$documentation:“A templatestring with a prefix, such as
String.raw`foobarbaz`”,$propdoc:{template_string:“ The template string”,prefix:“ The prefix, which
can be a symbol such as `foo` or a dotted expression such as
`String.raw`.”},_walk:function(visitor){this.prefix._walk(visitor);this.template_string._walk(visitor)}});var
AST_TemplateString=DEFNODE(“TemplateString”,“segments”,{$documentation:“A
template string literal”,$propdoc:{segments:“ One
or more segments, starting with AST_TemplateSegment. AST_Node may follow
AST_TemplateSegment, but each AST_Node must be followed by
AST_TemplateSegment.”},_walk:function(visitor){return
visitor._visit(this,function(){this.segments.forEach(function(seg){seg._walk(visitor)})})}});var
AST_TemplateSegment=DEFNODE(“TemplateSegment”,“value
raw”,{$documentation:“A segment of a template string
literal”,$propdoc:{value:“Content of the segment”,raw:“Raw content of the
segment”}});var AST_Jump=DEFNODE(“Jump”,null,{$documentation:“Base class
for “jumps” (for now that's `return`, `throw`, `break` and
`continue`)”},AST_Statement);var
AST_Exit=DEFNODE(“Exit”,“value”,{$documentation:“Base class for “exits”
(`return` and `throw`)”,$propdoc:{value:“ the value
returned or thrown by this statement; could be null for
AST_Return”},_walk:function(visitor){return
visitor._visit(this,this.value&&function(){this.value._walk(visitor)})}},AST_Jump);var
AST_Return=DEFNODE(“Return”,null,{$documentation:“A `return`
statement”},AST_Exit);var AST_Throw=DEFNODE(“Throw”,null,{$documentation:“A
`throw` statement”},AST_Exit);var
AST_LoopControl=DEFNODE(“LoopControl”,“label”,{$documentation:“Base class
for loop control statements (`break` and `continue`)”,$propdoc:{label:“ the label, or null if
none”},_walk:function(visitor){return
visitor._visit(this,this.label&&function(){this.label._walk(visitor)})}},AST_Jump);var
AST_Break=DEFNODE(“Break”,null,{$documentation:“A `break`
statement”},AST_LoopControl);var
AST_Continue=DEFNODE(“Continue”,null,{$documentation:“A `continue`
statement”},AST_LoopControl);var AST_If=DEFNODE(“If”,“condition
alternative”,{$documentation:“A `if` statement”,$propdoc:{condition:“ the `if` condition”,alternative:“ the `else` part, or null
if not present”},_walk:function(visitor){return
visitor._visit(this,function(){this.condition._walk(visitor);this.body._walk(visitor);if(this.alternative)this.alternative._walk(visitor)})}},AST_StatementWithBody);var
AST_Switch=DEFNODE(“Switch”,“expression”,{$documentation:“A `switch`
statement”,$propdoc:{expression:“ the `switch`
“discriminant””},_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor);walk_body(this,visitor)})}},AST_Block);var
AST_SwitchBranch=DEFNODE(“SwitchBranch”,null,{$documentation:“Base class
for `switch` branches”},AST_Block);var
AST_Default=DEFNODE(“Default”,null,{$documentation:“A `default` switch
branch”},AST_SwitchBranch);var
AST_Case=DEFNODE(“Case”,“expression”,{$documentation:“A `case` switch
branch”,$propdoc:{expression:“ the `case`
expression”},_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor);walk_body(this,visitor)})}},AST_SwitchBranch);var
AST_Try=DEFNODE(“Try”,“bcatch bfinally”,{$documentation:“A `try`
statement”,$propdoc:{bcatch:“ the catch block, or
null if not present”,bfinally:“ the finally
block, or null if not present”},_walk:function(visitor){return
visitor._visit(this,function(){walk_body(this,visitor);if(this.bcatch)this.bcatch._walk(visitor);if(this.bfinally)this.bfinally._walk(visitor)})}},AST_Block);var
AST_Catch=DEFNODE(“Catch”,“argname”,{$documentation:“A `catch` node; only
makes sense as part of a `try` statement”,$propdoc:{argname:“
symbol for the exception”},_walk:function(visitor){return
visitor._visit(this,function(){this.argname._walk(visitor);walk_body(this,visitor)})}},AST_Block);var
AST_Finally=DEFNODE(“Finally”,null,{$documentation:“A `finally` node; only
makes sense as part of a `try` statement”},AST_Block);var
AST_Definitions=DEFNODE(“Definitions”,“definitions”,{$documentation:“Base
class for `var` or `const` nodes (variable
declarations/initializations)”,$propdoc:{definitions:“ array of variable
definitions”},_walk:function(visitor){return
visitor._visit(this,function(){var definitions=this.definitions;for(var
i=0,len=definitions.length;i<len;i++){definitions._walk(visitor)}})}},AST_Statement);var
AST_Var=DEFNODE(“Var”,null,{$documentation:“A `var`
statement”},AST_Definitions);var
AST_Let=DEFNODE(“Let”,null,{$documentation:“A `let`
statement”},AST_Definitions);var
AST_Const=DEFNODE(“Const”,null,{$documentation:“A `const`
statement”},AST_Definitions);var
AST_NameMapping=DEFNODE(“NameMapping”,“foreign_name
name”,{$documentation:“The part of the export/import statement that declare
names from a module.”,$propdoc:{foreign_name:“
The name being exported/imported (as specified in the module)”,name:“ The name as it
is visible to this module.”},_walk:function(visitor){return
visitor._visit(this,function(){this.foreign_name._walk(visitor);this.name._walk(visitor)})}});var
AST_Import=DEFNODE(“Import”,“imported_name imported_names
module_name”,{$documentation:“An `import` statement”,$propdoc:{imported_name:“ The name of the variable
holding the module's default export.”,imported_names:“ The names of
non-default imported variables”,module_name:“
String literal describing where this module came
from”},_walk:function(visitor){return
visitor._visit(this,function(){if(this.imported_name){this.imported_name._walk(visitor)}if(this.imported_names){this.imported_names.forEach(function(name_import){name_import._walk(visitor)})}this.module_name._walk(visitor)})}});var
AST_Export=DEFNODE(“Export”,“exported_definition exported_value is_default
exported_names module_name”,{$documentation:“An `export`
statement”,$propdoc:{exported_definition:“ An
exported definition”,exported_value:“ An exported
value”,exported_names:“ List of exported names”,module_name:“ Name of the file to load
exports from”,is_default:“ Whether this is the
default exported value of this
module”},_walk:function(visitor){visitor._visit(this,function(){if(this.exported_definition){this.exported_definition._walk(visitor)}if(this.exported_value){this.exported_value._walk(visitor)}if(this.exported_names){this.exported_names.forEach(function(name_export){name_export._walk(visitor)})}if(this.module_name){this.module_name._walk(visitor)}})}},AST_Statement);var
AST_VarDef=DEFNODE(“VarDef”,“name value”,{$documentation:“A variable
declaration; only appears in a AST_Definitions node”,$propdoc:{name:“
name of the variable”,value:“ initializer, or null
of there's no initializer”},_walk:function(visitor){return
visitor._visit(this,function(){this.name._walk(visitor);if(this.value)this.value._walk(visitor)})}});var
AST_Call=DEFNODE(“Call”,“expression args”,{$documentation:“A function call
expression”,$propdoc:{expression:“ expression to
invoke as function”,args:“ array of
arguments”},_walk:function(visitor){return
visitor._visit(this,function(){var args=this.args;for(var
i=0,len=args.length;i<len;i++){args._walk(visitor)}this.expression._walk(visitor)})}});var
AST_New=DEFNODE(“New”,null,{$documentation:“An object instantiation.
Derives from a function call since it has exactly the same
properties”},AST_Call);var
AST_Sequence=DEFNODE(“Sequence”,“expressions”,{$documentation:“A sequence
expression (comma-separated expressions)”,$propdoc:{expressions:“ array of expressions (at least
two)”},_walk:function(visitor){return
visitor._visit(this,function(){this.expressions.forEach(function(node){node._walk(visitor)})})}});var
AST_PropAccess=DEFNODE(“PropAccess”,“expression
property”,{$documentation:'Base class for property access expressions,
i.e. `a.foo` or `a`',$propdoc:{expression:“ the “container” expression”,property:“ the property to access.
For AST_Dot this is always a plain string, while for AST_Sub it's an
arbitrary AST_Node”}});var AST_Dot=DEFNODE(“Dot”,null,{$documentation:“A
dotted property access expression”,_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor)})}},AST_PropAccess);var
AST_Sub=DEFNODE(“Sub”,null,{$documentation:'Index-style property
access, i.e. `a`',_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor);this.property._walk(visitor)})}},AST_PropAccess);var
AST_Unary=DEFNODE(“Unary”,“operator expression”,{$documentation:“Base class
for unary expressions”,$propdoc:{operator:“ the operator”,expression:“ expression that this unary
operator applies to”},_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor)})}});var
AST_UnaryPrefix=DEFNODE(“UnaryPrefix”,null,{$documentation:“Unary prefix
expression, i.e. `typeof i` or `++i`”},AST_Unary);var
AST_UnaryPostfix=DEFNODE(“UnaryPostfix”,null,{$documentation:“Unary postfix
expression, i.e. `i++`”},AST_Unary);var
AST_Binary=DEFNODE(“Binary”,“operator left right”,{$documentation:“Binary
expression, i.e. `a + b`”,$propdoc:{left:“ left-hand
side expression”,operator:“ the operator”,right:“ right-hand side
expression”},_walk:function(visitor){return
visitor._visit(this,function(){this.left._walk(visitor);this.right._walk(visitor)})}});var
AST_Conditional=DEFNODE(“Conditional”,“condition consequent
alternative”,{$documentation:“Conditional expression using the ternary
operator, i.e. `a ? b : c`”,$propdoc:{condition:“”,consequent:“”,alternative:“”},_walk:function(visitor){return
visitor._visit(this,function(){this.condition._walk(visitor);this.consequent._walk(visitor);this.alternative._walk(visitor)})}});var
AST_Assign=DEFNODE(“Assign”,null,{$documentation:“An assignment expression
— `a = b + 5`”},AST_Binary);var
AST_DefaultAssign=DEFNODE(“DefaultAssign”,null,{$documentation:“A default
assignment expression like in `(a = 3) => a`”},AST_Binary);var
AST_Array=DEFNODE(“Array”,“elements”,{$documentation:“An array
literal”,$propdoc:{elements:“ array of
elements”},_walk:function(visitor){return
visitor._visit(this,function(){var elements=this.elements;for(var
i=0,len=elements.length;i<len;i++){elements._walk(visitor)}})}});var
AST_Object=DEFNODE(“Object”,“properties”,{$documentation:“An object
literal”,$propdoc:{properties:“ array of
properties”},_walk:function(visitor){return
visitor._visit(this,function(){var properties=this.properties;for(var
i=0,len=properties.length;i<len;i++){properties._walk(visitor)}})}});var
AST_ObjectProperty=DEFNODE(“ObjectProperty”,“key
value”,{$documentation:“Base class for literal object
properties”,$propdoc:{key:“ property name.
For ObjectKeyVal this is a string. For getters, setters and computed
property this is an AST_Node.”,value:“ property
value. For getters and setters this is an
AST_Accessor.”},_walk:function(visitor){return
visitor._visit(this,function(){if(this.key instanceof
AST_Node)this.key._walk(visitor);this.value._walk(visitor)})}});var
AST_ObjectKeyVal=DEFNODE(“ObjectKeyVal”,“quote”,{$documentation:“A key:
value object property”,$propdoc:{quote:“ the original
quote character”}},AST_ObjectProperty);var
AST_ObjectSetter=DEFNODE(“ObjectSetter”,“quote static”,{$propdoc:{quote:“ the original quote character, if any”,static:“ whether this is a static setter (classes
only)”},$documentation:“An object setter property”},AST_ObjectProperty);var
AST_ObjectGetter=DEFNODE(“ObjectGetter”,“quote static”,{$propdoc:{quote:“ the original quote character, if any”,static:“ whether this is a static getter (classes
only)”},$documentation:“An object getter property”},AST_ObjectProperty);var
AST_ConciseMethod=DEFNODE(“ConciseMethod”,“quote static is_generator
async”,{$propdoc:{quote:“ the original quote
character, if any”,static:“ is this method static
(classes only)”,is_generator:“ is this a generator method”,async:“ is this method
async”},$documentation:“An ES6 concise method inside an object or
class”},AST_ObjectProperty);var AST_Class=DEFNODE(“Class”,“name extends
properties inlined”,{$propdoc:{name:“ optional class name.”,extends:“? optional parent class”,properties:“ array of
properties”},$documentation:“An ES6 class”,_walk:function(visitor){return
visitor._visit(this,function(){if(this.name){this.name._walk(visitor)}if(this.extends){this.extends._walk(visitor)}this.properties.forEach(function(prop){prop._walk(visitor)})})}},AST_Scope);var
AST_DefClass=DEFNODE(“DefClass”,null,{$documentation:“A class
definition”},AST_Class);var
AST_ClassExpression=DEFNODE(“ClassExpression”,null,{$documentation:“A class
expression.”},AST_Class);var AST_Symbol=DEFNODE(“Symbol”,“scope name
thedef”,{$propdoc:{name:“ name of this symbol”,scope:“ the current scope (not necessarily
the definition scope)”,thedef:“ the definition of
this symbol”},$documentation:“Base class for all symbols”});var
AST_NewTarget=DEFNODE(“NewTarget”,null,{$documentation:“A reference to
new.target”});var
AST_SymbolDeclaration=DEFNODE(“SymbolDeclaration”,“init”,{$documentation:“A
declaration symbol (symbol in var/const, function name or argument, symbol
in catch)”},AST_Symbol);var
AST_SymbolVar=DEFNODE(“SymbolVar”,null,{$documentation:“Symbol defining a
variable”},AST_SymbolDeclaration);var
AST_SymbolBlockDeclaration=DEFNODE(“SymbolBlockDeclaration”,null,{$documentation:“Base
class for block-scoped declaration symbols”},AST_SymbolDeclaration);var
AST_SymbolConst=DEFNODE(“SymbolConst”,null,{$documentation:“A constant
declaration”},AST_SymbolBlockDeclaration);var
AST_SymbolLet=DEFNODE(“SymbolLet”,null,{$documentation:“A block-scoped
`let` declaration”},AST_SymbolBlockDeclaration);var
AST_SymbolFunarg=DEFNODE(“SymbolFunarg”,null,{$documentation:“Symbol naming
a function argument”},AST_SymbolVar);var
AST_SymbolDefun=DEFNODE(“SymbolDefun”,null,{$documentation:“Symbol defining
a function”},AST_SymbolDeclaration);var
AST_SymbolMethod=DEFNODE(“SymbolMethod”,null,{$documentation:“Symbol in an
object defining a method”},AST_Symbol);var
AST_SymbolLambda=DEFNODE(“SymbolLambda”,null,{$documentation:“Symbol naming
a function expression”},AST_SymbolDeclaration);var
AST_SymbolDefClass=DEFNODE(“SymbolDefClass”,null,{$documentation:“Symbol
naming a class's name in a class declaration. Lexically scoped to its
containing scope, and accessible within the
class.”},AST_SymbolBlockDeclaration);var
AST_SymbolClass=DEFNODE(“SymbolClass”,null,{$documentation:“Symbol naming a
class's name. Lexically scoped to the
class.”},AST_SymbolDeclaration);var
AST_SymbolCatch=DEFNODE(“SymbolCatch”,null,{$documentation:“Symbol naming
the exception in catch”},AST_SymbolBlockDeclaration);var
AST_SymbolImport=DEFNODE(“SymbolImport”,null,{$documentation:“Symbol
referring to an imported name”},AST_SymbolBlockDeclaration);var
AST_SymbolImportForeign=DEFNODE(“SymbolImportForeign”,null,{$documentation:“A
symbol imported from a module, but it is defined in the other module, and
its real name is irrelevant for this module's
purposes”},AST_Symbol);var
AST_Label=DEFNODE(“Label”,“references”,{$documentation:“Symbol naming a
label (declaration)”,$propdoc:{references:“
a list of nodes referring to this
label”},initialize:function(){this.references=[];this.thedef=this}},AST_Symbol);var
AST_SymbolRef=DEFNODE(“SymbolRef”,null,{$documentation:“Reference to some
symbol (not definition/declaration)”},AST_Symbol);var
AST_SymbolExport=DEFNODE(“SymbolExport”,null,{$documentation:“Symbol
referring to a name to export”},AST_SymbolRef);var
AST_SymbolExportForeign=DEFNODE(“SymbolExportForeign”,null,{$documentation:“A
symbol exported from this module, but it is used in the other module, and
its real name is irrelevant for this module's
purposes”},AST_Symbol);var
AST_LabelRef=DEFNODE(“LabelRef”,null,{$documentation:“Reference to a label
symbol”},AST_Symbol);var AST_This=DEFNODE(“This”,null,{$documentation:“The
`this` symbol”},AST_Symbol);var
AST_Super=DEFNODE(“Super”,null,{$documentation:“The `super`
symbol”},AST_This);var
AST_Constant=DEFNODE(“Constant”,null,{$documentation:“Base class for all
constants”,getValue:function(){return this.value}});var
AST_String=DEFNODE(“String”,“value quote”,{$documentation:“A string
literal”,$propdoc:{value:“ the contents of this string”,quote:“ the original quote
character”}},AST_Constant);var AST_Number=DEFNODE(“Number”,“value
literal”,{$documentation:“A number literal”,$propdoc:{value:“ the numeric value”,literal:“
numeric value as string (optional)”}},AST_Constant);var
AST_RegExp=DEFNODE(“RegExp”,“value”,{$documentation:“A regexp
literal”,$propdoc:{value:“ the actual
regexp”}},AST_Constant);var
AST_Atom=DEFNODE(“Atom”,null,{$documentation:“Base class for
atoms”},AST_Constant);var AST_Null=DEFNODE(“Null”,null,{$documentation:“The
`null` atom”,value:null},AST_Atom);var
AST_NaN=DEFNODE(“NaN”,null,{$documentation:“The impossible
value”,value:0/0},AST_Atom);var
AST_Undefined=DEFNODE(“Undefined”,null,{$documentation:“The `undefined`
value”,value:function(){}()},AST_Atom);var
AST_Hole=DEFNODE(“Hole”,null,{$documentation:“A hole in an
array”,value:function(){}()},AST_Atom);var
AST_Infinity=DEFNODE(“Infinity”,null,{$documentation:“The `Infinity`
value”,value:1/0},AST_Atom);var
AST_Boolean=DEFNODE(“Boolean”,null,{$documentation:“Base class for
booleans”},AST_Atom);var
AST_False=DEFNODE(“False”,null,{$documentation:“The `false`
atom”,value:false},AST_Boolean);var
AST_True=DEFNODE(“True”,null,{$documentation:“The `true`
atom”,value:true},AST_Boolean);var
AST_Await=DEFNODE(“Await”,“expression”,{$documentation:“An `await`
statement”,$propdoc:{expression:“ the mandatory
expression being awaited”},_walk:function(visitor){return
visitor._visit(this,function(){this.expression._walk(visitor)})}});var
AST_Yield=DEFNODE(“Yield”,“expression is_star”,{$documentation:“A `yield`
statement”,$propdoc:{expression:“ the value
returned or thrown by this statement; could be null (representing
undefined) but only when is_star is set to false”,is_star:“ Whether this is a yield or yield*
statement”},_walk:function(visitor){return
visitor._visit(this,this.expression&&function(){this.expression._walk(visitor)})}});function
TreeWalker(callback){this.visit=callback;this.stack=[];this.directives=Object.create(null)}TreeWalker.prototype={_visit:function(node,descend){this.push(node);var
ret=this.visit(node,descend?function(){descend.call(node)}:noop);if(!ret&&descend){descend.call(node)}this.pop();return
ret},parent:function(n){return this.stack},push:function(node){if(node
instanceof AST_Lambda){this.directives=Object.create(this.directives)}else
if(node instanceof AST_Directive&&!this.directives){this.directives=node}else if(node instanceof
AST_Class){this.directives=Object.create(this.directives);if(!this.directives[“use
strict”]){this.directives[“use
strict”]=node}}this.stack.push(node)},pop:function(){var
node=this.stack.pop();if(node instanceof AST_Lambda||node instanceof
AST_Class){this.directives=Object.getPrototypeOf(this.directives)}},self:function(){return
this.stack},find_parent:function(type){var
stack=this.stack;for(var i=stack.length;–i>=0;){var x=stack;if(x instanceof type)return
x}},has_directive:function(type){var dir=this.directives;if(dir)return dir;var node=this.stack;if(node instanceof
AST_Scope&&node.body){for(var i=0;i<node.body.length;++i){var st=node.body;if(!(st instanceof
AST_Directive))break;if(st.value==type)return
st}}},loopcontrol_target:function(node){var
stack=this.stack;if(node.label)for(var i=stack.length;–i>=0;){var x=stack;if(x instanceof
AST_LabeledStatement&&x.label.name==node.label.name)return
x.body}else for(var i=stack.length;–i>=0;){var x=stack;if(x instanceof AST_IterationStatement||node
instanceof AST_Break&&x instanceof AST_Switch)return x}}};
/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Parser based on parse-js (http://marijn.haverbeke.nl/parse-js/). Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;var KEYWORDS=“break case catch class const continue debugger
default delete do else export extends finally for function if in instanceof
let new return switch throw try typeof var void while with”;var
KEYWORDS_ATOM=“false null true”;var RESERVED_WORDS=“enum implements import
interface package private protected public static super this
”KEYWORDS_ATOM
“ ”+KEYWORDS;var
KEYWORDS_BEFORE_EXPRESSION=“return new delete throw else case yield
await”;KEYWORDS=makePredicate(KEYWORDS);RESERVED_WORDS=makePredicate(RESERVED_WORDS);KEYWORDS_BEFORE_EXPRESSION=makePredicate(KEYWORDS_BEFORE_EXPRESSION);KEYWORDS_ATOM=makePredicate(KEYWORDS_ATOM);var
OPERATOR_CHARS=makePredicate(characters(“+-*&%=<>!?|~^”));var RE_NUM_LITERAL=//i;var RE_HEX_NUMBER=/^0x+$/i;var RE_OCT_NUMBER=/^0+$/;var RE_ES6_OCT_NUMBER=/^0o+$/i;var RE_BIN_NUMBER=/^0b+$/i;var RE_DEC_NUMBER=/^d*.?d*(?:e?d*(?:d.?|.?d)d*)?$/i;var >“,”<<",">>>“,”<",">“,”<=",">=“,”==“,”===“,”!=“,”!==“,”?“,”=“,”+=“,”-=“,”/=“,”*=“,”**=“,”%=“,”>>=“,”<<=",">>>=“,”|=“,”^=“,”&=“,”&&“,”||“”>OPERATORS=makePredicate();var
WHITESPACE_CHARS=makePredicate(characters(“
nrtfv u2028u2029 ufeff”));var
NEWLINE_CHARS=makePredicate(characters(“nru2028u2029”));var
PUNC_AFTER_EXPRESSION=makePredicate(characters(“;]),:”));var
PUNC_BEFORE_EXPRESSION=makePredicate(characters(“[{(,;:”));var
PUNC_CHARS=makePredicate(characters(“[]{}(),;:”));var UNICODE={ID_Start:/|uD800|uD801|uD802|uD803|uD804|uD805|uD806|uD808|uD809|[uD80CuD840-uD868uD86A-uD86CuD86F-uD872]|uD80D|uD811|uD81A|uD81B|uD82C|uD82F|uD835|uD83A|uD83B|uD869|uD86D|uD86E|uD873|uD87E/,ID_Continue:/|uD800|uD801|uD802|uD803|uD804|uD805|uD806|uD808|uD809|[uD80CuD840-uD868uD86A-uD86CuD86F-uD872]|uD80D|uD811|uD81A|uD81B|uD82C|uD82F|uD834|uD835|uD836|uD83A|uD83B|uD869|uD86D|uD86E|uD873|uD87E|uDB40/};function
get_full_char(str,pos){var
char=str.charAt(pos);if(is_surrogate_pair_head(char)){var
next=str.charAt(pos+1);if(is_surrogate_pair_tail(next)){return
char+next}}if(is_surrogate_pair_tail(char)){var
prev=str.charAt(pos-1);if(is_surrogate_pair_head(prev)){return
prev+char}}return char}function
get_full_char_code(str,pos){if(is_surrogate_pair_head(str.charAt(pos))){return
65536+(str.charCodeAt(pos)-55296<<10)+str.charCodeAt(pos+1)-56320}return
str.charCodeAt(pos)}function get_full_char_length(str){var
surrogates=0;for(var
i=0;i<str.length;i++){if(is_surrogate_pair_head(str.charCodeAt(i))){if(is_surrogate_pair_tail(str.charCodeAt(i+1))){surrogates++;i++}}}return
str.length-surrogates}function
from_char_code(code){if(code>65535){code-=65536;return
String.fromCharCode((code>>10)+55296)+String.fromCharCode(code%1024+56320)}return
String.fromCharCode(code)}function is_surrogate_pair_head(code){if(typeof
code===“string”)code=code.charCodeAt(0);return
code>=55296&&code<=56319}function
is_surrogate_pair_tail(code){if(typeof
code===“string”)code=code.charCodeAt(0);return
code>=56320&&code<=57343}function is_digit(code){return
code>=48&&code<=57}function is_identifier(name){if(typeof
name!==“string”||RESERVED_WORDS(name))return false;return true}function
is_identifier_start(ch){var code=ch.charCodeAt(0);return
UNICODE.ID_Start.test(ch)||code==36||code==95}function
is_identifier_char(ch){var code=ch.charCodeAt(0);return
UNICODE.ID_Continue.test(ch)||code==36||code==95||code==8204||code==8205}function
is_identifier_string(str){return/^[a-z0-9_$]*$/i.test(str)}function
parse_js_number(num){if(RE_HEX_NUMBER.test(num)){return
parseInt(num.substr(2),16)}else if(RE_OCT_NUMBER.test(num)){return
parseInt(num.substr(1),8)}else if(RE_ES6_OCT_NUMBER.test(num)){return
parseInt(num.substr(2),8)}else if(RE_BIN_NUMBER.test(num)){return
parseInt(num.substr(2),2)}else if(RE_DEC_NUMBER.test(num)){return
parseFloat(num)}else{var val=parseFloat(num);if(val==num)return
val}}function
JS_Parse_Error(message,filename,line,col,pos){this.message=message;this.filename=filename;this.line=line;this.col=col;this.pos=pos}JS_Parse_Error.prototype=Object.create(Error.prototype);JS_Parse_Error.prototype.constructor=JS_Parse_Error;JS_Parse_Error.prototype.name=“SyntaxError”;configure_error_stack(JS_Parse_Error);function
js_error(message,filename,line,col,pos){throw new
JS_Parse_Error(message,filename,line,col,pos)}function
is_token(token,type,val){return
token.type==type&&(val==null||token.value==val)}var
EX_EOF={};function tokenizer($TEXT,filename,html5_comments,shebang){var
S={text:$TEXT,filename:filename,pos:0,tokpos:0,line:1,tokline:0,col:0,tokcol:0,newline_before:false,regex_allowed:false,brace_counter:0,template_braces:[],comments_before:,directives:{},directive_stack:[]};function
peek(){return get_full_char(S.text,S.pos)}function
next(signal_eof,in_string){var
ch=get_full_char(S.text,S.pos++);if(signal_eof&&!ch)throw
EX_EOF;if(NEWLINE_CHARS(ch)){S.newline_before=S.newline_before||!in_string;++S.line;S.col=0;if(!in_string&&ch==“r”&&peek()==“n”){++S.pos;ch=“n”}}else{if(ch.length>1){+S.pos;S.col}
+S.col}return
ch}function forward(i){while(i– >0)next()}function
looking_at(str){return S.text.substr(S.pos,str.length)==str}function
find_eol(){var text=S.text;for(var i=S.pos,n=S.text.length;i<n;++i){var
ch=text;if(NEWLINE_CHARS(ch))return i}return-1}function
find(what,signal_eof){var
pos=S.text.indexOf(what,S.pos);if(signal_eof&&pos==-1)throw
EX_EOF;return pos}function
start_token(){S.tokline=S.line;S.tokcol=S.col;S.tokpos=S.pos}var
prev_was_dot=false;function
token(type,value,is_comment){S.regex_allowed=type==“operator”&&!UNARY_POSTFIX(value)||type==“keyword”&&KEYWORDS_BEFORE_EXPRESSION(value)||type==“punc”&&PUNC_BEFORE_EXPRESSION(value)||type==“arrow”;if(type==“punc”&&value==“.”){prev_was_dot=true}else
if(!is_comment){prev_was_dot=false}var
ret={type:type,value:value,line:S.tokline,col:S.tokcol,pos:S.tokpos,endline:S.line,endcol:S.col,endpos:S.pos,nlb:S.newline_before,file:filename};if(/^(?:num|string|regexp)$/i.test(type)){ret.raw=$TEXT.substring(ret.pos,ret.endpos)}if(!is_comment){ret.comments_before=S.comments_before;ret.comments_after=S.comments_before=[]}S.newline_before=false;return
new AST_Token(ret)}function
skip_whitespace(){while(WHITESPACE_CHARS(peek()))next()}function
read_while(pred){var
ret=“”,ch,i=0;while((ch=peek())&&pred(ch,i++))ret+=next();return
ret}function
parse_error(err){js_error(err,filename,S.tokline,S.tokcol,S.tokpos)}function
read_num(prefix){var
has_e=false,after_e=false,has_x=false,has_dot=prefix==“.”;var
num=read_while(function(ch,i){var code=ch.charCodeAt(0);switch(code){case
98:case 66:return has_x=true;case 111:case 79:case 120:case 88:return
has_x?false:has_x=true;case 101:case 69:return
has_x?true:has_e?false:has_e=after_e=true;case 45:return
after_e||i==0&&!prefix;case 43:return after_e;case
after_e=false,46:return!has_dot&&!has_x&&!has_e?has_dot=true:false}return
RE_NUM_LITERAL.test(ch)});if(prefix)num=prefix+num;if(RE_OCT_NUMBER.test(num)&&next_token.has_directive(“use
strict”)){parse_error(“Legacy octal literals are not allowed in strict
mode”)}var valid=parse_js_number(num);if(!isNaN(valid)){return
token(“num”,valid)}else{parse_error(“Invalid syntax: ”+num)}}function
read_escaped_char(in_string){var
ch=next(true,in_string);switch(ch.charCodeAt(0)){case 110:return“n”;case
114:return“r”;case 116:return“t”;case 98:return“b”;case 118:return“v”;case
102:return“f”;case 120:return String.fromCharCode(hex_bytes(2));case
117:if(peek()==“{”){next(true);if(peek()===“}”)parse_error(“Expecting
hex-character between {}”);while(peek()==“0”)next(true);var
result,length=find(“}”,true)-S.pos;if(length>6||(result=hex_bytes(length))>1114111){parse_error(“Unicode
reference out of bounce”)}next(true);return from_char_code(result)}return
String.fromCharCode(hex_bytes(4));case 10:return“”;case
13:if(peek()==“n”){next(true,in_string);return“”}}if(ch>=“0”&&ch<=“7”)return
read_octal_escape_sequence(ch);return ch}function
read_octal_escape_sequence(ch){var
p=peek();if(p>=“0”&&p<=“7”){ch+=next(true);if(ch<=“3”&&(p=peek())>=“0”&&p<=“7”)ch+=next(true)}if(ch===“0”)return“0”;if(ch.length>0&&next_token.has_directive(“use
strict”))parse_error(“Legacy octal escape sequences are not allowed in
strict mode”);return String.fromCharCode(parseInt(ch,8))}function
hex_bytes(n){var num=0;for(;n>0;–n){var
digit=parseInt(next(true),16);if(isNaN(digit))parse_error(“Invalid
hex-character pattern in string”);num=num<<4|digit}return num}var
read_string=with_eof_error(“Unterminated string
constant”,function(quote_char){var quote=next(),ret=“”;for(;;){var
ch=next(true,true);if(ch==“\”)ch=read_escaped_char(true);else
if(NEWLINE_CHARS(ch))parse_error(“Unterminated string constant”);else
if(ch==quote)break;ret+=ch}var
tok=token(“string”,ret);tok.quote=quote_char;return tok});var
read_template_characters=with_eof_error(“Unterminated
template”,function(begin){if(begin){S.template_braces.push(S.brace_counter)}var
content=“”,raw=“”,ch,tok;next(true,true);while((ch=next(true,true))!=“`”){if(ch==“r”){if(peek()==“n”)++S.pos;ch=“n”}else
if(ch==“$”&&peek()==“{”){next(true,true);S.brace_counter++;tok=token(begin?“template_head”:“template_substitution”,content);tok.begin=begin;tok.raw=raw;tok.end=false;return
tok}raw+=ch;if(ch==“\”){var
tmp=S.pos;ch=read_escaped_char();raw+=S.text.substr(tmp,S.pos-tmp)}content+=ch}S.template_braces.pop();tok=token(begin?“template_head”:“template_substitution”,content);tok.begin=begin;tok.raw=raw;tok.end=true;return
tok});function skip_line_comment(type){var
regex_allowed=S.regex_allowed;var
i=find_eol(),ret;if(i==-1){ret=S.text.substr(S.pos);S.pos=S.text.length}else{ret=S.text.substring(S.pos,i);S.pos=i}S.col=S.tokcol+(S.pos-S.tokpos);S.comments_before.push(token(type,ret,true));S.regex_allowed=regex_allowed;return
next_token}var skip_multiline_comment=with_eof_error(“Unterminated
multiline comment”,function(){var regex_allowed=S.regex_allowed;var
i=find(“*/”,true);var
text=S.text.substring(S.pos,i).replace(/rn|r|u2028|u2029/g,“n”);forward(get_full_char_length(text)+2);S.comments_before.push(token(“comment2”,text,true));S.newline_before=S.newline_before||text.indexOf(“n”)>=0;S.regex_allowed=regex_allowed;return
next_token});var read_name=with_eof_error(“Unterminated identifier
name”,function(){var name=“”,ch,escaped=false,hex;var
read_escaped_identifier_char=function(){escaped=true;next();if(peek()!==“u”){parse_error(“Expecting
UnicodeEscapeSequence – uXXXX or u{XXXX}”)}return
read_escaped_char()};if((name=peek())===“\”){name=read_escaped_identifier_char();if(!is_identifier_start(name)){parse_error(“First
identifier char is an invalid identifier char”)}}else
if(is_identifier_start(name)){next()}else{return“”}while((ch=peek())!=null){if((ch=peek())===“\”){ch=read_escaped_identifier_char();if(!is_identifier_char(ch)){parse_error(“Invalid
escaped identifier
char”)}}else{if(!is_identifier_char(ch)){break}next()}name+=ch}if(RESERVED_WORDS(name)&&escaped){parse_error(“Escaped
characters are not allowed in keywords”)}return name});var
read_regexp=with_eof_error(“Unterminated regular
expression”,function(source){var
prev_backslash=false,ch,in_class=false;while(ch=next(true))if(NEWLINE_CHARS(ch)){parse_error(“Unexpected
line terminator”)}else
if(prev_backslash){source+=“\”+ch;prev_backslash=false}else
if(ch==“[”){in_class=true;source+=ch}else
if(ch==“]”&&in_class){in_class=false;source+=ch}else
if(ch==“/”&&!in_class){break}else
if(ch==“\”){prev_backslash=true}else{source+=ch}var
mods=read_name();try{var regexp=new
RegExp(source,mods);regexp.raw_source=source;return
token(“regexp”,regexp)}catch(e){parse_error(e.message)}});function
read_operator(prefix){function grow(op){if(!peek())return op;var
bigger=op+peek();if(OPERATORS(bigger)){next();return
grow(bigger)}else{return op}}return
token(“operator”,grow(prefix||next()))}function
handle_slash(){next();switch(peek()){case“/”:next();return
skip_line_comment(“comment1”);case“*”:next();return
skip_multiline_comment()}return
S.regex_allowed?read_regexp(“”):read_operator(“/”)}function
handle_eq_sign(){next();if(peek()===“>”){next();return
token(“arrow”,“=>”)}else{return read_operator(“=”)}}function
handle_dot(){next();if(is_digit(peek().charCodeAt(0))){return
read_num(“.”)}if(peek()===“.”){next();next();return
token(“expand”,“…”)}return token(“punc”,“.”)}function read_word(){var
word=read_name();if(prev_was_dot)return token(“name”,word);return
KEYWORDS_ATOM(word)?token(“atom”,word):!KEYWORDS(word)?token(“name”,word):OPERATORS(word)?token(“operator”,word):token(“keyword”,word)}function
with_eof_error(eof_error,cont){return function(x){try{return
cont(x)}catch(ex){if(ex===EX_EOF)parse_error(eof_error);else throw
ex}}}function next_token(force_regexp){if(force_regexp!=null)return
read_regexp(force_regexp);if(shebang&&S.pos==0&&looking_at(“#!”)){start_token();forward(2);skip_line_comment(“comment5”)}for(;;){skip_whitespace();start_token();if(html5_comments){if(looking_at(“x3c!–”)){forward(4);skip_line_comment(“comment3”);continue}if(looking_at(“–x3e”)&&S.newline_before){forward(3);skip_line_comment(“comment4”);continue}}var
ch=peek();if(!ch)return token(“eof”);var
code=ch.charCodeAt(0);switch(code){case 34:case 39:return
read_string(ch);case 46:return handle_dot();case 47:{var
tok=handle_slash();if(tok===next_token)continue;return tok}case 61:return
handle_eq_sign();case 96:return read_template_characters(true);case
123:S.brace_counter++;break;case 125:S.brace_counter–;if(S.template_braces.length>0&&S.template_braces===S.brace_counter)return
read_template_characters(false);break}if(is_digit(code))return
read_num();if(PUNC_CHARS(ch))return
token(“punc”,next());if(OPERATOR_CHARS(ch))return
read_operator();if(code==92||is_identifier_start(ch))return
read_word();break}parse_error(“Unexpected character
'”ch
“'”)}next_token.next=next;next_token.peek=peek;next_token.context=function(nc){if(nc)S=nc;return
S};next_token.add_directive=function(directive){S.directive_stack.push(directive);if(S.directives===undefined){S.directives=1}else{S.directives++}};next_token.push_directives_stack=function(){S.directive_stack.push([])};next_token.pop_directives_stack=function(){var
directives=S.directive_stack;for(var
i=0;i<directives.length;i++){S.directives[directives]–}S.directive_stack.pop()};next_token.has_directive=function(directive){return
S.directives>0};return next_token}var UNARY_PREFIX=makePredicate();var
UNARY_POSTFIX=makePredicate();var >=“,”<<=",">>>=“,”|=“,”^=“,”&=“”>ASSIGNMENT=makePredicate();var
PRECEDENCE=function(a,ret){for(var i=0;i<a.length;++i){var b=a;for(var j=0;j<b.length;++j){ret[b]=i+1}}return
ret}([[“||”],[“&&”],[“|”],[“^”],[“&”],[“==”,“===”,“!=”,“!==”],[“<”,“>”,“<=”,“>=”,“>”,“<<",">>>”“>in”,“instanceof”],,[“+”,“-”],[“*”,“/”,“%”],[“**”]],{});var
ATOMIC_START_TOKEN=makePredicate();function
parse($TEXT,options){options=defaults(options,{bare_returns:false,ecma:8,expression:false,filename:null,html5_comments:true,shebang:true,strict:false,toplevel:null},true);var
S={input:typeof
$TEXT==“string”?tokenizer($TEXT,options.filename,options.html5_comments,options.shebang):$TEXT,token:null,prev:null,peeked:null,in_function:0,in_async:-1,in_generator:-1,in_directives:true,in_loop:0,labels:[]};S.token=next();function
is(type,value){return is_token(S.token,type,value)}function peek(){return
S.peeked||(S.peeked=S.input())}function
next(){S.prev=S.token;if(S.peeked){S.token=S.peeked;S.peeked=null}else{S.token=S.input()}S.in_directives=S.in_directives&&(S.token.type==“string”||is(“punc”,“;”));return
S.token}function prev(){return S.prev}function croak(msg,line,col,pos){var
ctx=S.input.context();js_error(msg,ctx.filename,line!=null?line:ctx.tokline,col!=null?col:ctx.tokcol,pos!=null?pos:ctx.tokpos)}function
token_error(token,msg){croak(msg,token.line,token.col)}function
unexpected(token){if(token==null)token=S.token;token_error(token,“Unexpected
token: ”token.type
“ (”token.value
“)”)}function
expect_token(type,val){if(is(type,val)){return
next()}token_error(S.token,“Unexpected token ”S.token.type
“
«”S.token.value
“»”+“, expected ”type
“
«”val
“»”)}function expect(punc){return
expect_token(“punc”,punc)}function has_newline_before(token){return
token.nlb||!all(token.comments_before,function(comment){return!comment.nlb})}function
can_insert_semicolon(){return!options.strict&&(is(“eof”)||is(“punc”,“}”)||has_newline_before(S.token))}function
is_in_generator(){return S.in_generator===S.in_function}function
is_in_async(){return S.in_async===S.in_function}function
semicolon(optional){if(is(“punc”,“;”))next();else
if(!optional&&!can_insert_semicolon())unexpected()}function
parenthesised(){expect(“(”);var exp=expression(true);expect(“)”);return
exp}function embed_tokens(parser){return function(){var start=S.token;var
expr=parser.apply(null,arguments);var
end=prev();expr.start=start;expr.end=end;return expr}}function
handle_regexp(){if(is(“operator”,“/”)||is(“operator”,“/=”)){S.peeked=null;S.token=S.input(S.token.value.substr(1))}}var
statement=embed_tokens(function(is_export_default){handle_regexp();switch(S.token.type){case“string”:if(S.in_directives){var
token=peek();if(S.token.raw.indexOf(“\”)==-1&&(is_token(token,“punc”,“;”)||is_token(token,“punc”,“}”)||has_newline_before(token)||is_token(token,“eof”))){S.input.add_directive(S.token.value)}else{S.in_directives=false}}var
dir=S.in_directives,stat=simple_statement();return dir?new
AST_Directive(stat.body):stat;case“template_head”:case“num”:case“regexp”:case“operator”:case“atom”:return
simple_statement();case“name”:if(S.token.value==“async”&&is_token(peek(),“keyword”,“function”)){next();next();return
function_(AST_Defun,false,true,is_export_default)}if(S.token.value==“import”&&!is_token(peek(),“punc”,“(”)){next();var
node=import_();semicolon();return node}return
is_token(peek(),“punc”,“:”)?labeled_statement():simple_statement();case“punc”:switch(S.token.value){case“{”:return
new
AST_BlockStatement({start:S.token,body:block_(),end:prev()});case“[”:case“(”:return
simple_statement();case“;”:S.in_directives=false;next();return new
AST_EmptyStatement;default:unexpected()}case“keyword”:switch(S.token.value){case“break”:next();return
break_cont(AST_Break);case“continue”:next();return
break_cont(AST_Continue);case“debugger”:next();semicolon();return new
AST_Debugger;case“do”:next();var
body=in_loop(statement);expect_token(“keyword”,“while”);var
condition=parenthesised();semicolon(true);return new
AST_Do({body:body,condition:condition});case“while”:next();return new
AST_While({condition:parenthesised(),body:in_loop(statement)});case“for”:next();return
for_();case“class”:next();return
class_(AST_DefClass);case“function”:next();return
function_(AST_Defun,false,false,is_export_default);case“if”:next();return
if_();case“return”:if(S.in_function==0&&!options.bare_returns)croak(“'return'
outside of function”);next();var value=null;if(is(“punc”,“;”)){next()}else
if(!can_insert_semicolon()){value=expression(true);semicolon()}return new
AST_Return({value:value});case“switch”:next();return new
AST_Switch({expression:parenthesised(),body:in_loop(switch_body_)});case“throw”:next();if(has_newline_before(S.token))croak(“Illegal
newline after 'throw'”);var
value=expression(true);semicolon();return new
AST_Throw({value:value});case“try”:next();return
try_();case“var”:next();var node=var_();semicolon();return
node;case“let”:next();var node=let_();semicolon();return
node;case“const”:next();var node=const_();semicolon();return
node;case“with”:if(S.input.has_directive(“use strict”)){croak(“Strict mode
may not include a with statement”)}next();return new
AST_With({expression:parenthesised(),body:statement()});case“export”:if(!is_token(peek(),“punc”,“(”)){next();return
export_()}}}unexpected()});function labeled_statement(){var
label=as_symbol(AST_Label);if(label.name===“await”&&is_in_async()){token_error(S.prev,“await
cannot be used as label inside async
function”)}if(find_if(function(l){return
l.name==label.name},S.labels)){croak(“Label ”label.name
“
defined twice”)}expect(“:”);S.labels.push(label);var
stat=statement();S.labels.pop();if(!(stat instanceof
AST_IterationStatement)){label.references.forEach(function(ref){if(ref
instanceof AST_Continue){ref=ref.label.start;croak(“Continue label
`”label.name
“` refers to
non-IterationStatement.”,ref.line,ref.col,ref.pos)}})}return new
AST_LabeledStatement({body:stat,label:label})}function
simple_statement(tmp){return new
AST_SimpleStatement({body:(tmp=expression(true),semicolon(),tmp)})}function
break_cont(type){var
label=null,ldef;if(!can_insert_semicolon()){label=as_symbol(AST_LabelRef,true)}if(label!=null){ldef=find_if(function(l){return
l.name==label.name},S.labels);if(!ldef)croak(“Undefined label
”+label.name);label.thedef=ldef}else if(S.in_loop==0)croak(type.TYPE+“ not
inside a loop or switch”);semicolon();var stat=new
type({label:label});if(ldef)ldef.references.push(stat);return stat}function
for_(){expect(“(”);var
init=null;if(!is(“punc”,“;”)){init=is(“keyword”,“var”)?(next(),var_(true)):is(“keyword”,“let”)?(next(),let_(true)):is(“keyword”,“const”)?(next(),const_(true)):expression(true,true);var
is_in=is(“operator”,“in”);var
is_of=is(“name”,“of”);if(is_in||is_of){if(init instanceof
AST_Definitions){if(init.definitions.length>1)croak(“Only one variable
declaration allowed in for..in
loop”,init.start.line,init.start.col,init.start.pos)}else
if(!(is_assignable(init)||(init=to_destructuring(init))instanceof
AST_Destructuring)){croak(“Invalid left-hand side in for..in
loop”,init.start.line,init.start.col,init.start.pos)}next();if(is_in){return
for_in(init)}else{return for_of(init)}}}return regular_for(init)}function
regular_for(init){expect(“;”);var
test=is(“punc”,“;”)?null:expression(true);expect(“;”);var
step=is(“punc”,“)”)?null:expression(true);expect(“)”);return new
AST_For({init:init,condition:test,step:step,body:in_loop(statement)})}function
for_of(init){var lhs=init instanceof AST_Definitions?init.definitions.name:null;var
obj=expression(true);expect(“)”);return new
AST_ForOf({init:init,name:lhs,object:obj,body:in_loop(statement)})}function
for_in(init){var obj=expression(true);expect(“)”);return new
AST_ForIn({init:init,object:obj,body:in_loop(statement)})}var
arrow_function=function(start,argnames,is_async){if(has_newline_before(S.token)){croak(“Unexpected
newline before arrow (=>)”)}expect_token(“arrow”,“=>”);var
body=_function_body(is(“punc”,“{”),false,is_async);return new
AST_Arrow({start:start,end:body.end,async:is_async,argnames:argnames,body:body})};var
function_=function(ctor,is_generator_property,is_async,is_export_default){if(is_generator_property&&is_async)croak(“generators
cannot be async”);var start=S.token;var in_statement=ctor===AST_Defun;var
is_generator=is(“operator”,“*”);if(is_generator){next()}var
name=is(“name”)?as_symbol(in_statement?AST_SymbolDefun:AST_SymbolLambda):null;if(in_statement&&!name){if(is_export_default){ctor=AST_Function}else{unexpected()}}if(name&&ctor!==AST_Accessor&&!(name
instanceof AST_SymbolDeclaration))unexpected(prev());var args=[];var
body=_function_body(true,is_generator||is_generator_property,is_async,name,args);return
new
ctor({start:args.start,end:body.end,is_generator:is_generator,async:is_async,name:name,argnames:args,body:body})};function
track_used_binding_identifiers(is_parameter,strict){var parameters={};var
duplicate=false;var default_assignment=false;var spread=false;var
strict_mode=!!strict;var tracker={add_parameter:function(token){if(parameters!==undefined){if(duplicate===false){duplicate=token}tracker.check_strict()}else{parameters=true;if(is_parameter){switch(token.value){case“arguments”:case“eval”:case“yield”:if(strict_mode){token_error(token,“Unexpected
”token.value
“ identifier as parameter inside strict
mode”)}break;default:if(RESERVED_WORDS(token.value)){unexpected()}}}}},mark_default_assignment:function(token){if(default_assignment===false){default_assignment=token}},mark_spread:function(token){if(spread===false){spread=token}},mark_strict_mode:function(){strict_mode=true},is_strict:function(){return
default_assignment!==false||spread!==false||strict_mode},check_strict:function(){if(tracker.is_strict()&&duplicate!==false){token_error(duplicate,“Parameter
”duplicate.value
“ was used already”)}}};return
tracker}function parameters(params){var start=S.token;var
used_parameters=track_used_binding_identifiers(true,S.input.has_directive(“use
strict”));expect(“(”);while(!is(“punc”,“)”)){var
param=parameter(used_parameters);params.push(param);if(!is(“punc”,“)”)){expect(“,”);if(is(“punc”,“)”)&&options.ecma<8)unexpected()}if(param
instanceof AST_Expansion){break}}next()}function
parameter(used_parameters,symbol_type){var param;var
expand=false;if(used_parameters===undefined){used_parameters=track_used_binding_identifiers(true,S.input.has_directive(“use
strict”))}if(is(“expand”,“…”)){expand=S.token;used_parameters.mark_spread(S.token);next()}param=binding_element(used_parameters,symbol_type);if(is(“operator”,“=”)&&expand===false){used_parameters.mark_default_assignment(S.token);next();param=new
AST_DefaultAssign({start:param.start,left:param,operator:“=”,right:expression(false),end:S.token})}if(expand!==false){if(!is(“punc”,“)”)){unexpected()}param=new
AST_Expansion({start:expand,expression:param,end:expand})}used_parameters.check_strict();return
param}function binding_element(used_parameters,symbol_type){var
elements=[];var first=true;var is_expand=false;var expand_token;var
first_token=S.token;if(used_parameters===undefined){used_parameters=track_used_binding_identifiers(false,S.input.has_directive(“use
strict”))}symbol_type=symbol_type===undefined?AST_SymbolFunarg:symbol_type;if(is(“punc”,“”)){if(first){first=false}else{expect(“,”)}if(is(“expand”,“…”)){is_expand=true;expand_token=S.token;used_parameters.mark_spread(S.token);next()}if(is(“punc”)){switch(S.token.value){case“,”:elements.push(new
AST_Hole({start:S.token,end:S.token}));continue;case“]”:break;case“[”:case“{”:elements.push(binding_element(used_parameters,symbol_type));break;default:unexpected()}}else
if(is(“name”)){used_parameters.add_parameter(S.token);elements.push(as_symbol(symbol_type))}else{croak(“Invalid
function parameter”)}if(is(“operator”,“=”)&&is_expand===false){used_parameters.mark_default_assignment(S.token);next();elements=new
AST_DefaultAssign({start:elements.start,left:elements,operator:“=”,right:expression(false),end:S.token})}if(is_expand){if(!is(“punc”,“]”)){croak(“Rest
element must be last element”)}elements=new
AST_Expansion({start:expand_token,expression:elements,end:expand_token})}}expect(“]”);used_parameters.check_strict();return
new
AST_Destructuring({start:first_token,names:elements,is_array:true,end:prev()})}else
if(is(“punc”,“{”)){next();while(!is(“punc”,“}”)){if(first){first=false}else{expect(“,”)}if(is(“expand”,“…”)){is_expand=true;expand_token=S.token;used_parameters.mark_spread(S.token);next()}if(is(“name”)&&(is_token(peek(),“punc”)||is_token(peek(),“operator”))&&.indexOf(peek().value)!==-1){used_parameters.add_parameter(S.token);var
start=prev();var
value=as_symbol(symbol_type);if(is_expand){elements.push(new
AST_Expansion({start:expand_token,expression:value,end:value.end}))}else{elements.push(new
AST_ObjectKeyVal({start:start,key:value.name,value:value,end:value.end}))}}else
if(is(“punc”,“}”)){continue}else{var property_token=S.token;var
property=as_property_name();if(property===null){unexpected(prev())}else
if(prev().type===“name”&&!is(“punc”,“:”)){elements.push(new
AST_ObjectKeyVal({start:prev(),key:property,value:new
symbol_type({start:prev(),name:property,end:prev()}),end:prev()}))}else{expect(“:”);elements.push(new
AST_ObjectKeyVal({start:property_token,quote:property_token.quote,key:property,value:binding_element(used_parameters,symbol_type),end:prev()}))}}if(is_expand){if(!is(“punc”,“}”)){croak(“Rest
element must be last element”)}}else if(is(“operator”,“=”)){used_parameters.mark_default_assignment(S.token);next();elements.value=new
AST_DefaultAssign({start:elements.value.start,left:elements.value,operator:“=”,right:expression(false),end:S.token})}}expect(“}”);used_parameters.check_strict();return
new
AST_Destructuring({start:first_token,names:elements,is_array:false,end:prev()})}else
if(is(“name”)){used_parameters.add_parameter(S.token);return
as_symbol(symbol_type)}else{croak(“Invalid function parameter”)}}function
params_or_seq_(allow_arrows,maybe_sequence){var spread_token;var
invalid_sequence;var trailing_comma;var
a=[];expect(“(”);while(!is(“punc”,“)”)){if(spread_token)unexpected(spread_token);if(is(“expand”,“…”)){spread_token=S.token;if(maybe_sequence)invalid_sequence=S.token;next();a.push(new
AST_Expansion({start:prev(),expression:expression(),end:S.token}))}else{a.push(expression())}if(!is(“punc”,“)”)){expect(“,”);if(is(“punc”,“)”)){if(options.ecma<8)unexpected();trailing_comma=prev();if(maybe_sequence)invalid_sequence=trailing_comma}}}expect(“)”);if(allow_arrows&&is(“arrow”,“=>”)){if(spread_token&&trailing_comma)unexpected(trailing_comma)}else
if(invalid_sequence){unexpected(invalid_sequence)}return a}function
_function_body(block,generator,is_async,name,args){var loop=S.in_loop;var
labels=S.labels;var current_generator=S.in_generator;var
current_async=S.in_async;++S.in_function;if(generator)S.in_generator=S.in_function;if(is_async)S.in_async=S.in_function;if(args)parameters(args);if(block)S.in_directives=true;S.in_loop=0;S.labels=[];if(block){S.input.push_directives_stack();var
a=block_();if(name)_verify_symbol(name);if(args)args.forEach(_verify_symbol);S.input.pop_directives_stack()}else{var
a=expression(false)}–S.in_function;S.in_loop=loop;S.labels=labels;S.in_generator=current_generator;S.in_async=current_async;return
a}function _await_expression(){if(!is_in_async()){croak(“Unexpected await
expression outside async
function”,S.prev.line,S.prev.col,S.prev.pos)}return new
AST_Await({expression:maybe_unary(true)})}function
_yield_expression(){if(!is_in_generator()){croak(“Unexpected yield
expression outside generator
function”,S.prev.line,S.prev.col,S.prev.pos)}var star=false;var
has_expression=true;if(can_insert_semicolon()||is(“punc”)&&PUNC_AFTER_EXPRESSION(S.token.value)){has_expression=false}else
if(is(“operator”,“*”)){star=true;next()}return new
AST_Yield({is_star:star,expression:has_expression?expression():null})}function
if_(){var
cond=parenthesised(),body=statement(),belse=null;if(is(“keyword”,“else”)){next();belse=statement()}return
new AST_If({condition:cond,body:body,alternative:belse})}function
block_(){expect(“{”);var
a=[];while(!is(“punc”,“}”)){if(is(“eof”))unexpected();a.push(statement())}next();return
a}function switch_body_(){expect(“{”);var a=[],cur=null,branch=null,tmp;while(!is(“punc”,“}”)){if(is(“eof”))unexpected();if(is(“keyword”,“case”)){if(branch)branch.end=prev();cur=;branch=new
AST_Case({start:(tmp=S.token,next(),tmp),expression:expression(true),body:cur});a.push(branch);expect(“:”)}else
if(is(“keyword”,“default”)){if(branch)branch.end=prev();cur=[];branch=new
AST_Default({start:(tmp=S.token,next(),expect(“:”),tmp),body:cur});a.push(branch)}else{if(!cur)unexpected();cur.push(statement())}}if(branch)branch.end=prev();next();return
a}function try_(){var
body=block_(),bcatch=null,bfinally=null;if(is(“keyword”,“catch”)){var
start=S.token;next();expect(“(”);var
name=parameter(undefined,AST_SymbolCatch);expect(“)”);bcatch=new
AST_Catch({start:start,argname:name,body:block_(),end:prev()})}if(is(“keyword”,“finally”)){var
start=S.token;next();bfinally=new
AST_Finally({start:start,body:block_(),end:prev()})}if(!bcatch&&!bfinally)croak(“Missing
catch/finally blocks”);return new
AST_Try({body:body,bcatch:bcatch,bfinally:bfinally})}function
vardefs(no_in,kind){var a=[];var def;for(;;){var
sym_type=kind===“var”?AST_SymbolVar:kind===“const”?AST_SymbolConst:kind===“let”?AST_SymbolLet:null;if(is(“punc”,“{”)||is(“punc”,“[”)){def=new
AST_VarDef({start:S.token,name:binding_element(undefined,sym_type),value:is(“operator”,“=”)?(expect_token(“operator”,“=”),expression(false,no_in)):null,end:prev()})}else{def=new
AST_VarDef({start:S.token,name:as_symbol(sym_type),value:is(“operator”,“=”)?(next(),expression(false,no_in)):!no_in&&kind===“const”?croak(“Missing
initializer in const
declaration”):null,end:prev()});if(def.name.name==“import”)croak(“Unexpected
token: import”)}a.push(def);if(!is(“punc”,“,”))break;next()}return a}var
var_=function(no_in){return new
AST_Var({start:prev(),definitions:vardefs(no_in,“var”),end:prev()})};var
let_=function(no_in){return new
AST_Let({start:prev(),definitions:vardefs(no_in,“let”),end:prev()})};var
const_=function(no_in){return new
AST_Const({start:prev(),definitions:vardefs(no_in,“const”),end:prev()})};var
new_=function(allow_calls){var
start=S.token;expect_token(“operator”,“new”);if(is(“punc”,“.”)){next();expect_token(“name”,“target”);return
subscripts(new AST_NewTarget({start:start,end:prev()}),allow_calls)}var
newexp=expr_atom(false),args;if(is(“punc”,“(”)){next();args=expr_list(“)”,options.ecma>=8)}else{args=[]}var
call=new
AST_New({start:start,expression:newexp,args:args,end:prev()});mark_pure(call);return
subscripts(call,allow_calls)};function as_atom_node(){var
tok=S.token,ret;switch(tok.type){case“name”:ret=_make_symbol(AST_SymbolRef);break;case“num”:ret=new
AST_Number({start:tok,end:tok,value:tok.value});break;case“string”:ret=new
AST_String({start:tok,end:tok,value:tok.value,quote:tok.quote});break;case“regexp”:ret=new
AST_RegExp({start:tok,end:tok,value:tok.value});break;case“atom”:switch(tok.value){case“false”:ret=new
AST_False({start:tok,end:tok});break;case“true”:ret=new
AST_True({start:tok,end:tok});break;case“null”:ret=new
AST_Null({start:tok,end:tok});break}break}next();return ret}function
to_fun_args(ex,_,__,default_seen_above){var
insert_default=function(ex,default_value){if(default_value){return new
AST_DefaultAssign({start:ex.start,left:ex,operator:“=”,right:default_value,end:default_value.end})}return
ex};if(ex instanceof AST_Object){return insert_default(new
AST_Destructuring({start:ex.start,end:ex.end,is_array:false,names:ex.properties.map(to_fun_args)}),default_seen_above)}else
if(ex instanceof AST_ObjectKeyVal){ex.value=to_fun_args(ex.value,0,);return
insert_default(ex,default_seen_above)}else if(ex instanceof
AST_Hole){return ex}else if(ex instanceof
AST_Destructuring){ex.names=ex.names.map(to_fun_args);return
insert_default(ex,default_seen_above)}else if(ex instanceof
AST_SymbolRef){return insert_default(new
AST_SymbolFunarg({name:ex.name,start:ex.start,end:ex.end}),default_seen_above)}else
if(ex instanceof
AST_Expansion){ex.expression=to_fun_args(ex.expression);return
insert_default(ex,default_seen_above)}else if(ex instanceof
AST_Array){return insert_default(new
AST_Destructuring({start:ex.start,end:ex.end,is_array:true,names:ex.elements.map(to_fun_args)}),default_seen_above)}else
if(ex instanceof AST_Assign){return
insert_default(to_fun_args(ex.left,undefined,undefined,ex.right),default_seen_above)}else
if(ex instanceof AST_DefaultAssign){ex.left=to_fun_args(ex.left,0,);return
ex}else{croak(“Invalid function parameter”,ex.start.line,ex.start.col)}}var
expr_atom=function(allow_calls,allow_arrows){if(is(“operator”,“new”)){return
new_(allow_calls)}var start=S.token;var
async=is(“name”,“async”)&&as_atom_node();if(is(“punc”)){switch(S.token.value){case“(”:if(async&&!allow_calls)break;var
exprs=params_or_seq_(allow_arrows,!async);if(allow_arrows&&is(“arrow”,“=>”)){return
arrow_function(start,exprs.map(to_fun_args),!!async)}var ex=async?new
AST_Call({expression:async,args:exprs}):exprs.length==1?exprs:new
AST_Sequence({expressions:exprs});if(ex.start){var
len=start.comments_before.length;[].unshift.apply(ex.start.comments_before,start.comments_before);start.comments_before=ex.start.comments_before;start.comments_before_length=len;if(len==0&&start.comments_before.length>0){var
comment=start.comments_before;if(!comment.nlb){comment.nlb=start.nlb;start.nlb=false}}start.comments_after=ex.start.comments_after}ex.start=start;var
end=prev();if(ex.end){end.comments_before=ex.end.comments_before;[].push.apply(ex.end.comments_after,end.comments_after);end.comments_after=ex.end.comments_after}ex.end=end;if(ex
instanceof AST_Call)mark_pure(ex);return
subscripts(ex,allow_calls);case“[”:return
subscripts(array_(),allow_calls);case“{”:return
subscripts(object_or_destructuring_(),allow_calls)}if(!async)unexpected()}if(allow_arrows&&is(“name”)&&is_token(peek(),“arrow”)){var
param=new
AST_SymbolFunarg({name:S.token.value,start:start,end:start});next();return
arrow_function(start,,!!async)}if(is(“keyword”,“function”)){next();var
func=function_(AST_Function,false,!!async);func.start=start;func.end=prev();return
subscripts(func,allow_calls)}if(async)return
subscripts(async,allow_calls);if(is(“keyword”,“class”)){next();var
cls=class_(AST_ClassExpression);cls.start=start;cls.end=prev();return
subscripts(cls,allow_calls)}if(is(“template_head”)){return
subscripts(template_string(),allow_calls)}if(ATOMIC_START_TOKEN(S.token.type)){return
subscripts(as_atom_node(),allow_calls)}unexpected()};function
template_string(){var segments=[],start=S.token;segments.push(new
AST_TemplateSegment({start:S.token,raw:S.token.raw,value:S.token.value,end:S.token}));while(S.token.end===false){next();handle_regexp();segments.push(expression(true));if(!is_token(“template_substitution”)){unexpected()}segments.push(new
AST_TemplateSegment({start:S.token,raw:S.token.raw,value:S.token.value,end:S.token}))}next();return
new
AST_TemplateString({start:start,segments:segments,end:S.token})}function
expr_list(closing,allow_trailing_comma,allow_empty){var
first=true,a=[];while(!is(“punc”,closing)){if(first)first=false;else
expect(“,”);if(allow_trailing_comma&&is(“punc”,closing))break;if(is(“punc”,“,”)&&allow_empty){a.push(new
AST_Hole({start:S.token,end:S.token}))}else
if(is(“expand”,“…”)){next();a.push(new
AST_Expansion({start:prev(),expression:expression(),end:S.token}))}else{a.push(expression(false))}}next();return
a}var array_=embed_tokens(function(){expect(“[”);return new
AST_Array({elements:expr_list(“]”,!options.strict,true)})});var
create_accessor=embed_tokens(function(is_generator,is_async){return
function_(AST_Accessor,is_generator,is_async)});var
object_or_destructuring_=embed_tokens(function
object_or_destructuring_(){var
start=S.token,first=true,a=[];expect(“{”);while(!is(“punc”,“}”)){if(first)first=false;else
expect(“,”);if(!options.strict&&is(“punc”,“}”))break;start=S.token;if(start.type==“expand”){next();a.push(new
AST_Expansion({start:start,expression:expression(false),end:prev()}));continue}var
name=as_property_name();var value;if(!is(“punc”,“:”)){var
concise=concise_method_or_getset(name,start);if(concise){a.push(concise);continue}value=new
AST_SymbolRef({start:prev(),name:name,end:prev()})}else
if(name===null){unexpected(prev())}else{next();value=expression(false)}if(is(“operator”,“=”)){next();value=new
AST_Assign({start:start,left:value,operator:“=”,right:expression(false),end:prev()})}a.push(new
AST_ObjectKeyVal({start:start,quote:start.quote,key:name instanceof
AST_Node?name:“”+name,value:value,end:prev()}))}next();return new
AST_Object({properties:a})});function class_(KindOfClass){var
start,method,class_name,extends_,a=[];S.input.push_directives_stack();S.input.add_directive(“use
strict”);if(S.token.type==“name”&&S.token.value!=“extends”){class_name=as_symbol(KindOfClass===AST_DefClass?AST_SymbolDefClass:AST_SymbolClass)}if(KindOfClass===AST_DefClass&&!class_name){unexpected()}if(S.token.value==“extends”){next();extends_=expression(true)}expect(“{”);if(is(“punc”,“;”)){next()}while(!is(“punc”,“}”)){start=S.token;method=concise_method_or_getset(as_property_name(),start,true);if(!method){unexpected()}a.push(method);if(is(“punc”,“;”)){next()}}S.input.pop_directives_stack();next();return
new
KindOfClass({start:start,name:class_name,extends:extends_,properties:a,end:prev()})}function
concise_method_or_getset(name,start,is_class){var
get_ast=function(name,token){if(typeof name===“string”||typeof
name===“number”){return new
AST_SymbolMethod({start:token,name:“”+name,end:prev()})}else
if(name===null){unexpected()}return name};var is_async=false;var
is_static=false;var is_generator=false;var
property_token=start;if(is_class&&name===“static”&&!is(“punc”,“(”)){is_static=true;property_token=S.token;name=as_property_name()}if(name===“async”&&!is(“punc”,“(”)&&!is(“punc”,“,”)&&!is(“punc”,“}”)){is_async=true;property_token=S.token;name=as_property_name()}if(name===null){is_generator=true;property_token=S.token;name=as_property_name();if(name===null){unexpected()}}if(is(“punc”,“(”)){name=get_ast(name,start);var
node=new
AST_ConciseMethod({start:start,static:is_static,is_generator:is_generator,async:is_async,key:name,quote:name
instanceof
AST_SymbolMethod?property_token.quote:undefined,value:create_accessor(is_generator,is_async),end:prev()});return
node}property_token=S.token;if(name==“get”){if(!is(“punc”)||is(“punc”,“[”)){name=get_ast(as_property_name(),start);return
new AST_ObjectGetter({start:start,static:is_static,key:name,quote:name
instanceof
AST_SymbolMethod?property_token.quote:undefined,value:create_accessor(),end:prev()})}}else
if(name==“set”){if(!is(“punc”)||is(“punc”,“[”)){name=get_ast(as_property_name(),start);return
new AST_ObjectSetter({start:start,static:is_static,key:name,quote:name
instanceof
AST_SymbolMethod?property_token.quote:undefined,value:create_accessor(),end:prev()})}}}function
import_(){var start=prev();var imported_name;var
imported_names;if(is(“name”)){imported_name=as_symbol(AST_SymbolImport)}if(is(“punc”,“,”)){next()}imported_names=map_names(true);if(imported_names||imported_name){expect_token(“name”,“from”)}var
mod_str=S.token;if(mod_str.type!==“string”){unexpected()}next();return new
AST_Import({start:start,imported_name:imported_name,imported_names:imported_names,module_name:new
AST_String({start:mod_str,value:mod_str.value,quote:mod_str.quote,end:mod_str}),end:S.token})}function
map_name(is_import){function make_symbol(type){return new
type({name:as_property_name(),start:prev(),end:prev()})}var
foreign_type=is_import?AST_SymbolImportForeign:AST_SymbolExportForeign;var
type=is_import?AST_SymbolImport:AST_SymbolExport;var start=S.token;var
foreign_name;var
name;if(is_import){foreign_name=make_symbol(foreign_type)}else{name=make_symbol(type)}if(is(“name”,“as”)){next();if(is_import){name=make_symbol(type)}else{foreign_name=make_symbol(foreign_type)}}else
if(is_import){name=new type(foreign_name)}else{foreign_name=new
foreign_type(name)}return new
AST_NameMapping({start:start,foreign_name:foreign_name,name:name,end:prev()})}function
map_nameAsterisk(is_import,name){var
foreign_type=is_import?AST_SymbolImportForeign:AST_SymbolExportForeign;var
type=is_import?AST_SymbolImport:AST_SymbolExport;var start=S.token;var
foreign_name;var end=prev();name=name||new
type({name:“*”,start:start,end:end});foreign_name=new
foreign_type({name:“*”,start:start,end:end});return new
AST_NameMapping({start:start,foreign_name:foreign_name,name:name,end:end})}function
map_names(is_import){var
names;if(is(“punc”,“{”)){next();names=[];while(!is(“punc”,“}”)){names.push(map_name(is_import));if(is(“punc”,“,”)){next()}}next()}else
if(is(“operator”,“*”)){var
name;next();if(is_import&&is(“name”,“as”)){next();name=as_symbol(AST_SymbolImportForeign)}names=}return names}function
export_(){var start=S.token;var is_default;var
exported_names;if(is(“keyword”,“default”)){is_default=true;next()}else
if(exported_names=map_names(false)){if(is(“name”,“from”)){next();var
mod_str=S.token;if(mod_str.type!==“string”){unexpected()}next();return new
AST_Export({start:start,is_default:is_default,exported_names:exported_names,module_name:new
AST_String({start:mod_str,value:mod_str.value,quote:mod_str.quote,end:mod_str}),end:prev()})}else{return
new
AST_Export({start:start,is_default:is_default,exported_names:exported_names,end:prev()})}}var
node;var exported_value;var
exported_definition;if(is(“punc”,“{”)||is_default&&(is(“keyword”,“class”)||is(“keyword”,“function”))&&is_token(peek(),“punc”)){exported_value=expression(false);semicolon()}else
if((node=statement(is_default))instanceof
AST_Definitions&&is_default){unexpected(node.start)}else if(node
instanceof AST_Definitions||node instanceof AST_Lambda||node instanceof
AST_DefClass){exported_definition=node}else if(node instanceof
AST_SimpleStatement){exported_value=node.body}else{unexpected(node.start)}return
new
AST_Export({start:start,is_default:is_default,exported_value:exported_value,exported_definition:exported_definition,end:prev()})}function
as_property_name(){var
tmp=S.token;switch(tmp.type){case“punc”:if(tmp.value===“[”){next();var
ex=expression(false);expect(“]”);return ex}else
unexpected(tmp);case“operator”:if(tmp.value===“*”){next();return null}if(.indexOf(tmp.value)===-1){unexpected(tmp)}case“name”:if(tmp.value==“yield”){if(is_in_generator()){token_error(tmp,“Yield
cannot be used as identifier inside generators”)}else
if(!is_token(peek(),“punc”,“:”)&&!is_token(peek(),“punc”,“(”)&&S.input.has_directive(“use
strict”)){token_error(tmp,“Unexpected yield identifier inside strict
mode”)}}case“string”:case“num”:case“keyword”:case“atom”:next();return
tmp.value;default:unexpected(tmp)}}function as_name(){var
tmp=S.token;if(tmp.type!=“name”)unexpected();next();return
tmp.value}function _make_symbol(type){var name=S.token.value;return
new(name==“this”?AST_This:name==“super”?AST_Super:type)({name:String(name),start:S.token,end:S.token})}function
_verify_symbol(sym){var
name=sym.name;if(is_in_generator()&&name==“yield”){token_error(sym.start,“Yield
cannot be used as identifier inside
generators”)}if(S.input.has_directive(“use
strict”)){if(name==“yield”){token_error(sym.start,“Unexpected yield
identifier inside strict mode”)}if(sym instanceof
AST_SymbolDeclaration&&(name==“arguments”||name==“eval”)){token_error(sym.start,“Unexpected
”name
“ in strict mode”)}}}function
as_symbol(type,noerror){if(!is(“name”)){if(!noerror)croak(“Name
expected”);return null}var
sym=_make_symbol(type);_verify_symbol(sym);next();return sym}function
mark_pure(call){var start=call.start;var comments=start.comments_before;var
i=HOP(start,“comments_before_length”)?start.comments_before_length:comments.length;while(–i>=0){var
comment=comments;if(/__PURE__/.test(comment.value)){call.pure=comment;break}}}var
subscripts=function(expr,allow_calls){var
start=expr.start;if(is(“punc”,“.”)){next();return subscripts(new
AST_Dot({start:start,expression:expr,property:as_name(),end:prev()}),allow_calls)}if(is(“punc”,“[”)){next();var
prop=expression(true);expect(“]”);return subscripts(new
AST_Sub({start:start,expression:expr,property:prop,end:prev()}),allow_calls)}if(allow_calls&&is(“punc”,“(”)){next();var
call=new
AST_Call({start:start,expression:expr,args:call_args(),end:prev()});mark_pure(call);return
subscripts(call,true)}if(is(“template_head”)){return subscripts(new
AST_PrefixedTemplateString({start:start,prefix:expr,template_string:template_string()}),allow_calls)}return
expr};var call_args=embed_tokens(function _call_args(){var
args=[];while(!is(“punc”,“)”)){if(is(“expand”,“…”)){next();args.push(new
AST_Expansion({start:prev(),expression:expression(false)}))}else{args.push(expression(false))}if(!is(“punc”,“)”)){expect(“,”);if(is(“punc”,“)”)&&options.ecma<8)unexpected()}}next();return
args});var maybe_unary=function(allow_calls,allow_arrows){var
start=S.token;if(start.type==“name”&&start.value==“await”){if(is_in_async()){next();return
_await_expression()}else if(S.input.has_directive(“use
strict”)){token_error(S.token,“Unexpected await identifier inside strict
mode”)}}if(is(“operator”)&&UNARY_PREFIX(start.value)){next();handle_regexp();var
ex=make_unary(AST_UnaryPrefix,start,maybe_unary(allow_calls));ex.start=start;ex.end=prev();return
ex}var
val=expr_atom(allow_calls,allow_arrows);while(is(“operator”)&&UNARY_POSTFIX(S.token.value)&&!has_newline_before(S.token)){if(val
instanceof
AST_Arrow)unexpected();val=make_unary(AST_UnaryPostfix,S.token,val);val.start=start;val.end=S.token;next()}return
val};function make_unary(ctor,token,expr){var
op=token.value;switch(op){case“++”:case“–”:if(!is_assignable(expr))croak(“Invalid
use of ”op
“
operator”,token.line,token.col,token.pos);break;case“delete”:if(expr
instanceof AST_SymbolRef&&S.input.has_directive(“use
strict”))croak(“Calling delete on expression not allowed in strict
mode”,expr.start.line,expr.start.col,expr.start.pos);break}return new
ctor({operator:op,expression:expr})}var
expr_op=function(left,min_prec,no_in){var
op=is(“operator”)?S.token.value:null;if(op==“in”&&no_in)op=null;if(op==“**”&&left
instanceof
AST_UnaryPrefix&&!is_token(left.start,“punc”,“(”)&&left.operator!==“–”&&left.operator!==“++”)unexpected(left.start);var
prec=op!=null?PRECEDENCE:null;if(prec!=null&&(prec>min_prec||op===“**”&&min_prec===prec)){next();var
right=expr_op(maybe_unary(true),prec,no_in);return expr_op(new
AST_Binary({start:left.start,left:left,operator:op,right:right,end:right.end}),min_prec,no_in)}return
left};function expr_ops(no_in){return
expr_op(maybe_unary(true,true),0,no_in)}var
maybe_conditional=function(no_in){var start=S.token;var
expr=expr_ops(no_in);if(is(“operator”,“?”)){next();var
yes=expression(false);expect(“:”);return new
AST_Conditional({start:start,condition:expr,consequent:yes,alternative:expression(false,no_in),end:prev()})}return
expr};function is_assignable(expr){return expr instanceof
AST_PropAccess||expr instanceof AST_SymbolRef}function
to_destructuring(node){if(node instanceof AST_Object){node=new
AST_Destructuring({start:node.start,names:node.properties.map(to_destructuring),is_array:false,end:node.end})}else
if(node instanceof AST_Array){var names=[];for(var
i=0;i<node.elements.length;i++){if(node.elementsinstanceof
AST_Expansion){if(i+1!==node.elements.length){token_error(node.elements.start,“Spread must the be last
element in destructuring array”)}node.elements.expression=to_destructuring(node.elements.expression)}names.push(to_destructuring(node.elements))}node=new
AST_Destructuring({start:node.start,names:names,is_array:true,end:node.end})}else
if(node instanceof
AST_ObjectProperty){node.value=to_destructuring(node.value)}else if(node
instanceof AST_Assign){node=new
AST_DefaultAssign({start:node.start,left:node.left,operator:“=”,right:node.right,end:node.end})}return
node}var maybe_assign=function(no_in){var
start=S.token;if(start.type==“name”&&start.value==“yield”){if(is_in_generator()){next();return
_yield_expression()}else if(S.input.has_directive(“use
strict”)){token_error(S.token,“Unexpected yield identifier inside strict
mode”)}}var left=maybe_conditional(no_in);var
val=S.token.value;if(is(“operator”)&&ASSIGNMENT(val)){if(is_assignable(left)||(left=to_destructuring(left))instanceof
AST_Destructuring){next();return new
AST_Assign({start:start,left:left,operator:val,right:maybe_assign(no_in),end:prev()})}croak(“Invalid
assignment”)}return left};var expression=function(commas,no_in){var
start=S.token;var
exprs=[];while(true){exprs.push(maybe_assign(no_in));if(!commas||!is(“punc”,“,”))break;next();commas=true}return
exprs.length==1?exprs:new
AST_Sequence({start:start,expressions:exprs,end:peek()})};function
in_loop(cont){++S.in_loop;var ret=cont();–S.in_loop;return
ret}if(options.expression){return expression(true)}return function(){var
start=S.token;var
body=[];S.input.push_directives_stack();while(!is(“eof”))body.push(statement());S.input.pop_directives_stack();var
end=prev();var
toplevel=options.toplevel;if(toplevel){toplevel.body=toplevel.body.concat(body);toplevel.end=end}else{toplevel=new
AST_Toplevel({start:start,body:body,end:end})}return toplevel}()}
/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;function TreeTransformer(before,after){TreeWalker.call(this);this.before=before;this.after=after}TreeTransformer.prototype=new TreeWalker;(function(undefined){function _(node,descend){node.DEFMETHOD(“transform”,function(tw,in_list){var x,y;tw.push(this);if(tw.before)x=tw.before(this,descend,in_list);if(x===undefined){x=this;descend(x,tw);if(tw.after){y=tw.after(x,in_list);if(y!==undefined)x=y}}tw.pop();return x})}function do_list(list,tw){return MAP(list,function(node){return node.transform(tw,true)})}_(AST_Node,noop);_(AST_LabeledStatement,function(self,tw){self.label=self.label.transform(tw);self.body=self.body.transform(tw)});_(AST_SimpleStatement,function(self,tw){self.body=self.body.transform(tw)});_(AST_Block,function(self,tw){self.body=do_list(self.body,tw)});_(AST_DWLoop,function(self,tw){self.condition=self.condition.transform(tw);self.body=self.body.transform(tw)});_(AST_For,function(self,tw){if(self.init)self.init=self.init.transform(tw);if(self.condition)self.condition=self.condition.transform(tw);if(self.step)self.step=self.step.transform(tw);self.body=self.body.transform(tw)});_(AST_ForIn,function(self,tw){self.init=self.init.transform(tw);self.object=self.object.transform(tw);self.body=self.body.transform(tw)});_(AST_With,function(self,tw){self.expression=self.expression.transform(tw);self.body=self.body.transform(tw)});_(AST_Exit,function(self,tw){if(self.value)self.value=self.value.transform(tw)});_(AST_LoopControl,function(self,tw){if(self.label)self.label=self.label.transform(tw)});_(AST_If,function(self,tw){self.condition=self.condition.transform(tw);self.body=self.body.transform(tw);if(self.alternative)self.alternative=self.alternative.transform(tw)});_(AST_Switch,function(self,tw){self.expression=self.expression.transform(tw);self.body=do_list(self.body,tw)});_(AST_Case,function(self,tw){self.expression=self.expression.transform(tw);self.body=do_list(self.body,tw)});_(AST_Try,function(self,tw){self.body=do_list(self.body,tw);if(self.bcatch)self.bcatch=self.bcatch.transform(tw);if(self.bfinally)self.bfinally=self.bfinally.transform(tw)});_(AST_Catch,function(self,tw){self.argname=self.argname.transform(tw);self.body=do_list(self.body,tw)});_(AST_Definitions,function(self,tw){self.definitions=do_list(self.definitions,tw)});_(AST_VarDef,function(self,tw){self.name=self.name.transform(tw);if(self.value)self.value=self.value.transform(tw)});_(AST_Destructuring,function(self,tw){self.names=do_list(self.names,tw)});_(AST_Lambda,function(self,tw){if(self.name)self.name=self.name.transform(tw);self.argnames=do_list(self.argnames,tw);if(self.body instanceof AST_Node){self.body=self.body.transform(tw)}else{self.body=do_list(self.body,tw)}});_(AST_Call,function(self,tw){self.expression=self.expression.transform(tw);self.args=do_list(self.args,tw)});_(AST_Sequence,function(self,tw){self.expressions=do_list(self.expressions,tw)});_(AST_Dot,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Sub,function(self,tw){self.expression=self.expression.transform(tw);self.property=self.property.transform(tw)});_(AST_Yield,function(self,tw){if(self.expression)self.expression=self.expression.transform(tw)});_(AST_Await,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Unary,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Binary,function(self,tw){self.left=self.left.transform(tw);self.right=self.right.transform(tw)});_(AST_Conditional,function(self,tw){self.condition=self.condition.transform(tw);self.consequent=self.consequent.transform(tw);self.alternative=self.alternative.transform(tw)});_(AST_Array,function(self,tw){self.elements=do_list(self.elements,tw)});_(AST_Object,function(self,tw){self.properties=do_list(self.properties,tw)});_(AST_ObjectProperty,function(self,tw){if(self.key instanceof AST_Node){self.key=self.key.transform(tw)}self.value=self.value.transform(tw)});_(AST_Class,function(self,tw){if(self.name)self.name=self.name.transform(tw);if(self.extends)self.extends=self.extends.transform(tw);self.properties=do_list(self.properties,tw)});_(AST_Expansion,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_NameMapping,function(self,tw){self.foreign_name=self.foreign_name.transform(tw);self.name=self.name.transform(tw)});_(AST_Import,function(self,tw){if(self.imported_name)self.imported_name=self.imported_name.transform(tw);if(self.imported_names)do_list(self.imported_names,tw);self.module_name=self.module_name.transform(tw)});_(AST_Export,function(self,tw){if(self.exported_definition)self.exported_definition=self.exported_definition.transform(tw);if(self.exported_value)self.exported_value=self.exported_value.transform(tw);if(self.exported_names)do_list(self.exported_names,tw);if(self.module_name)self.module_name=self.module_name.transform(tw)});_(AST_TemplateString,function(self,tw){self.segments=do_list(self.segments,tw)});_(AST_PrefixedTemplateString,function(self,tw){self.template_string=self.template_string.transform(tw)})})(); /***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;function SymbolDef(scope,orig,init){this.name=orig.name;this.orig=;this.init=init;this.eliminated=0;this.scope=scope;this.references=[];this.replaced=0;this.global=false;this.export=false;this.mangled_name=null;this.undeclared=false;this.id=SymbolDef.next_id++}SymbolDef.next_id=1;SymbolDef.prototype={unmangleable:function(options){if(!options)options={};return this.global&&!options.toplevel||this.export||this.undeclared||!options.eval&&(this.scope.uses_eval||this.scope.uses_with)||options.keep_fnames&&(this.originstanceof AST_SymbolLambda||this.originstanceof AST_SymbolDefun)||this.originstanceof AST_SymbolMethod||options.keep_classnames&&(this.originstanceof AST_SymbolClass||this.originstanceof AST_SymbolDefClass)},mangle:function(options){var cache=options.cache&&options.cache.props;if(this.global&&cache&&cache.has(this.name)){this.mangled_name=cache.get(this.name)}else if(!this.mangled_name&&!this.unmangleable(options)){var s=this.scope;var sym=this.orig;if(options.ie8&&sym instanceof AST_SymbolLambda)s=s.parent_scope;var def;if(def=this.redefined()){this.mangled_name=def.mangled_name||def.name}else this.mangled_name=s.next_mangled(options,this);if(this.global&&cache){cache.set(this.name,this.mangled_name)}}},redefined:function(){return this.defun&&this.defun.variables.get(this.name)}};AST_Toplevel.DEFMETHOD(“figure_out_scope”,function(options){options=defaults(options,{cache:null,ie8:false,safari10:false});var self=this;var scope=self.parent_scope=null;var labels=new Dictionary;var defun=null;var in_destructuring=null;var for_scopes=[];var tw=new TreeWalker(function(node,descend){if(node.is_block_scope()){var save_scope=scope;node.block_scope=scope=new AST_Scope(node);scope.init_scope_vars(save_scope);if(!(node instanceof AST_Scope)){scope.uses_with=save_scope.uses_with;scope.uses_eval=save_scope.uses_eval;scope.directives=save_scope.directives}if(options.safari10){if(node instanceof AST_For||node instanceof AST_ForIn){for_scopes.push(scope)}}descend();scope=save_scope;return true}if(node instanceof AST_Destructuring){in_destructuring=node;descend();in_destructuring=null;return true}if(node instanceof AST_Scope){node.init_scope_vars(scope);var save_scope=scope;var save_defun=defun;var save_labels=labels;defun=scope=node;labels=new Dictionary;descend();scope=save_scope;defun=save_defun;labels=save_labels;return true}if(node instanceof AST_LabeledStatement){var l=node.label;if(labels.has(l.name)){throw new Error(string_template(“Label {name} defined twice”,l))}labels.set(l.name,l);descend();labels.del(l.name);return true}if(node instanceof AST_With){for(var s=scope;s;s=s.parent_scope)s.uses_with=true;return}if(node instanceof AST_Symbol){node.scope=scope}if(node instanceof AST_Label){node.thedef=node;node.references=[]}if(node instanceof AST_SymbolLambda){defun.def_function(node,node.name==“arguments”?undefined:defun)}else if(node instanceof AST_SymbolDefun){mark_export((node.scope=defun.parent_scope.get_defun_scope()).def_function(node,defun),1)}else if(node instanceof AST_SymbolClass){mark_export(defun.def_variable(node,defun),1)}else if(node instanceof AST_SymbolImport){scope.def_variable(node)}else if(node instanceof AST_SymbolDefClass){mark_export((node.scope=defun.parent_scope).def_function(node,defun),1)}else if(node instanceof AST_SymbolVar||node instanceof AST_SymbolLet||node instanceof AST_SymbolConst){var def;if(node instanceof AST_SymbolBlockDeclaration){def=scope.def_variable(node,null)}else{def=defun.def_variable(node,node.TYPE==“SymbolVar”?null:undefined)}if(!all(def.orig,function(sym){if(sym===node)return true;if(node instanceof AST_SymbolBlockDeclaration){return sym instanceof AST_SymbolLambda}return!(sym instanceof AST_SymbolLet||sym instanceof AST_SymbolConst)})){js_error(node.name+“ redeclared”,node.start.file,node.start.line,node.start.col,node.start.pos)}if(!(node instanceof AST_SymbolFunarg))mark_export(def,2);def.destructuring=in_destructuring;if(defun!==scope){node.mark_enclosed(options);var def=scope.find_variable(node);if(node.thedef!==def){node.thedef=def;node.reference(options)}}}else if(node instanceof AST_SymbolCatch){scope.def_variable(node).defun=defun}else if(node instanceof AST_LabelRef){var sym=labels.get(node.name);if(!sym)throw new Error(string_template(“Undefined label {name} [{line},{col}]”,{name:node.name,line:node.start.line,col:node.start.col}));node.thedef=sym}if(!(scope instanceof AST_Toplevel)&&(node instanceof AST_Export||node instanceof AST_Import)){js_error(node.TYPE+“ statement may only appear at top level”,node.start.file,node.start.line,node.start.col,node.start.pos)}function mark_export(def,level){if(in_destructuring){var i=0;do{level++}while(tw.parent(i++)!==in_destructuring)}var node=tw.parent(level);def.export=node instanceof AST_Export}});self.walk(tw);self.globals=new Dictionary;var tw=new TreeWalker(function(node,descend){if(node instanceof AST_LoopControl&&node.label){node.label.thedef.references.push(node);return true}if(node instanceof AST_SymbolRef){var name=node.name;if(name==“eval”&&tw.parent()instanceof AST_Call){for(var s=node.scope;s&&!s.uses_eval;s=s.parent_scope){s.uses_eval=true}}var sym;if(tw.parent()instanceof AST_NameMapping&&tw.parent(1).module_name||!(sym=node.scope.find_variable(name))){sym=self.def_global(node)}else if(sym.scope instanceof AST_Lambda&&name==“arguments”){sym.scope.uses_arguments=true}node.thedef=sym;node.reference(options);if(node.scope.is_block_scope()&&!(sym.originstanceof AST_SymbolBlockDeclaration)){node.scope=node.scope.get_defun_scope()}return true}var def;if(node instanceof AST_SymbolCatch&&(def=node.definition().redefined())){var s=node.scope;while(s){push_uniq(s.enclosed,def);if(s===def.scope)break;s=s.parent_scope}}});self.walk(tw);if(options.ie8){self.walk(new TreeWalker(function(node,descend){if(node instanceof AST_SymbolCatch){var name=node.name;var refs=node.thedef.references;var scope=node.thedef.defun;var def=scope.find_variable(name)||self.globals.get(name)||scope.def_variable(node);refs.forEach(function(ref){ref.thedef=def;ref.reference(options)});node.thedef=def;node.reference(options);return true}}))}if(options.safari10){for(var i=0;i<for_scopes.length;i++){var scope=for_scopes;scope.parent_scope.variables.each(function(def){push_uniq(scope.enclosed,def)})}}});AST_Toplevel.DEFMETHOD(“def_global”,function(node){var globals=this.globals,name=node.name;if(globals.has(name)){return globals.get(name)}else{var g=new SymbolDef(this,node);g.undeclared=true;g.global=true;globals.set(name,g);return g}});AST_Scope.DEFMETHOD(“init_scope_vars”,function(parent_scope){this.variables=new Dictionary;this.functions=new Dictionary;this.uses_with=false;this.uses_eval=false;this.parent_scope=parent_scope;this.enclosed=[];this.cname=-1});AST_Node.DEFMETHOD(“is_block_scope”,return_false);AST_Class.DEFMETHOD(“is_block_scope”,return_false);AST_Lambda.DEFMETHOD(“is_block_scope”,return_false);AST_Toplevel.DEFMETHOD(“is_block_scope”,return_false);AST_SwitchBranch.DEFMETHOD(“is_block_scope”,return_false);AST_Block.DEFMETHOD(“is_block_scope”,return_true);AST_IterationStatement.DEFMETHOD(“is_block_scope”,return_true);AST_Lambda.DEFMETHOD(“init_scope_vars”,function(){AST_Scope.prototype.init_scope_vars.apply(this,arguments);this.uses_arguments=false;this.def_variable(new AST_SymbolFunarg({name:“arguments”,start:this.start,end:this.end}))});AST_Arrow.DEFMETHOD(“init_scope_vars”,function(){AST_Scope.prototype.init_scope_vars.apply(this,arguments);this.uses_arguments=false});AST_Symbol.DEFMETHOD(“mark_enclosed”,function(options){var def=this.definition();var s=this.scope;while(s){push_uniq(s.enclosed,def);if(options.keep_fnames){s.functions.each(function(d){push_uniq(def.scope.enclosed,d)})}if(s===def.scope)break;s=s.parent_scope}});AST_Symbol.DEFMETHOD(“reference”,function(options){this.definition().references.push(this);this.mark_enclosed(options)});AST_Scope.DEFMETHOD(“find_variable”,function(name){if(name instanceof AST_Symbol)name=name.name;return this.variables.get(name)||this.parent_scope&&this.parent_scope.find_variable(name)});AST_Scope.DEFMETHOD(“def_function”,function(symbol,init){var def=this.def_variable(symbol,init);if(!def.init||def.init instanceof AST_Defun)def.init=init;this.functions.set(symbol.name,def);return def});AST_Scope.DEFMETHOD(“def_variable”,function(symbol,init){var def=this.variables.get(symbol.name);if(def){def.orig.push(symbol);if(def.init&&(def.scope!==symbol.scope||def.init instanceof AST_Function)){def.init=init}}else{def=new SymbolDef(this,symbol,init);this.variables.set(symbol.name,def);def.global=!this.parent_scope}return symbol.thedef=def});function next_mangled(scope,options){var ext=scope.enclosed;out:while(true){var m=base54(++scope.cname);if(!is_identifier(m))continue;if(member(m,options.reserved))continue;for(var i=ext.length;–i>=0;){var sym=ext;var name=sym.mangled_name||sym.unmangleable(options)&&sym.name;if(m==name)continue out}return m}}AST_Scope.DEFMETHOD(“next_mangled”,function(options){return next_mangled(this,options)});AST_Toplevel.DEFMETHOD(“next_mangled”,function(options){var name;do{name=next_mangled(this,options)}while(member(name,this.mangled_names));return name});AST_Function.DEFMETHOD(“next_mangled”,function(options,def){var tricky_def=def.originstanceof AST_SymbolFunarg&&this.name&&this.name.definition();var tricky_name=tricky_def?tricky_def.mangled_name||tricky_def.name:null;while(true){var name=next_mangled(this,options);if(!tricky_name||tricky_name!=name)return name}});AST_Symbol.DEFMETHOD(“unmangleable”,function(options){var def=this.definition();return!def||def.unmangleable(options)});AST_Label.DEFMETHOD(“unmangleable”,return_false);AST_Symbol.DEFMETHOD(“unreferenced”,function(){return this.definition().references.length==0&&!(this.scope.uses_eval||this.scope.uses_with)});AST_Symbol.DEFMETHOD(“definition”,function(){return this.thedef});AST_Symbol.DEFMETHOD(“global”,function(){return this.definition().global});AST_Toplevel.DEFMETHOD(“_default_mangler_options”,function(options){options=defaults(options,{eval:false,ie8:false,keep_classnames:false,keep_fnames:false,reserved:[],toplevel:false});if(!Array.isArray(options.reserved))options.reserved=;push_uniq(options.reserved,“arguments”);return options});AST_Toplevel.DEFMETHOD(“mangle_names”,function(options){options=this._default_mangler_options(options);var lname=-1;var to_mangle=[];var mangled_names=this.mangled_names=[];if(options.cache){this.globals.each(collect);if(options.cache.props){options.cache.props.each(function(mangled_name){push_uniq(mangled_names,mangled_name)})}}var tw=new TreeWalker(function(node,descend){if(node instanceof AST_LabeledStatement){var save_nesting=lname;descend();lname=save_nesting;return true}if(node instanceof AST_Scope){node.variables.each(collect);return}if(node.is_block_scope()){node.block_scope.variables.each(collect);return}if(node instanceof AST_Label){var name;do{name=base54(++lname)}while(!is_identifier(name));node.mangled_name=name;return true}if(!options.ie8&&node instanceof AST_SymbolCatch){to_mangle.push(node.definition());return}});this.walk(tw);to_mangle.forEach(function(def){def.mangle(options)});function collect(symbol){if(!member(symbol.name,options.reserved)){to_mangle.push(symbol)}}});AST_Toplevel.DEFMETHOD(“find_colliding_names”,function(options){var cache=options.cache&&options.cache.props;var avoid=Object.create(null);options.reserved.forEach(to_avoid);this.globals.each(add_def);this.walk(new TreeWalker(function(node){if(node instanceof AST_Scope)node.variables.each(add_def);if(node instanceof AST_SymbolCatch)add_def(node.definition())}));return avoid;function to_avoid(name){avoid=true}function add_def(def){var name=def.name;if(def.global&&cache&&cache.has(name))name=cache.get(name);else if(!def.unmangleable(options))return;to_avoid(name)}});AST_Toplevel.DEFMETHOD(“expand_names”,function(options){base54.reset();base54.sort();options=this._default_mangler_options(options);var avoid=this.find_colliding_names(options);var cname=0;this.globals.each(rename);this.walk(new TreeWalker(function(node){if(node instanceof AST_Scope)node.variables.each(rename);if(node instanceof AST_SymbolCatch)rename(node.definition())}));function next_name(){var name;do{name=base54(cname++)}while(avoid||!is_identifier(name));return name}function rename(def){if(def.global&&options.cache)return;if(def.unmangleable(options))return;if(member(def.name,options.reserved))return;var d=def.redefined();def.name=d?d.name:next_name();def.orig.forEach(function(sym){sym.name=def.name});def.references.forEach(function(sym){sym.name=def.name})}});AST_Node.DEFMETHOD(“tail_node”,return_this);AST_Sequence.DEFMETHOD(“tail_node”,function(){return this.expressions});AST_Toplevel.DEFMETHOD(“compute_char_frequency”,function(options){options=this._default_mangler_options(options);try{AST_Node.prototype.print=function(stream,force_parens){this._print(stream,force_parens);if(this instanceof AST_Symbol&&!this.unmangleable(options)){base54.consider(this.name,-1)}else if(options.properties){if(this instanceof AST_Dot){base54.consider(this.property,-1)}else if(this instanceof AST_Sub){skip_string(this.property)}}};base54.consider(this.print_to_string(),1)}finally{AST_Node.prototype.print=AST_Node.prototype._print}base54.sort();function skip_string(node){if(node instanceof AST_String){base54.consider(node.value,-1)}else if(node instanceof AST_Conditional){skip_string(node.consequent);skip_string(node.alternative)}else if(node instanceof AST_Sequence){skip_string(node.tail_node())}}});var base54=function(){var leading=“abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_”.split(“”);var digits=“0123456789”.split(“”);var chars,frequency;function reset(){frequency=Object.create(null);leading.forEach(function(ch){frequency=0});digits.forEach(function(ch){frequency=0})}base54.consider=function(str,delta){for(var i=str.length;–i>=0;){frequency[str]+=delta}};function compare(a,b){return frequency-frequency}base54.sort=function(){chars=mergeSort(leading,compare).concat(mergeSort(digits,compare))};base54.reset=reset;reset();function base54(num){var ret=“”,base=54;num++;do{num–;ret+=chars;num=Math.floor(num/base);base=64}while(num>0);return ret}return base54}(); /***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;var EXPECT_DIRECTIVE=/^$|[sn]*$/;function
is_some_comments(comment){return
comment.type==“comment2”&&/@preserve|@license|@cc_on/i.test(comment.value)}function
OutputStream(options){var
readonly=!options;options=defaults(options,{ascii_only:false,beautify:false,bracketize:false,comments:false,ecma:5,ie8:false,indent_level:4,indent_start:0,inline_script:true,keep_quoted_props:false,max_line_len:false,preamble:null,preserve_line:false,quote_keys:false,quote_style:0,safari10:false,semicolons:true,shebang:true,shorthand:undefined,source_map:null,webkit:false,width:80,wrap_iife:false},true);if(options.shorthand===undefined)options.shorthand=options.ecma>5;var
comment_filter=return_false;if(options.comments){var
comments=options.comments;if(typeof options.comments===“string”&&/^/.*/*$/.test(options.comments)){var
regex_pos=options.comments.lastIndexOf(“/”);comments=new
RegExp(options.comments.substr(1,regex_pos-1),options.comments.substr(regex_pos+1))}if(comments
instanceof RegExp){comment_filter=function(comment){return
comment.type!=“comment5”&&comments.test(comment.value)}}else
if(typeof comments===“function”){comment_filter=function(comment){return
comment.type!=“comment5”&&comments(this,comment)}}else
if(comments===“some”){comment_filter=is_some_comments}else{comment_filter=return_true}}var
indentation=0;var current_col=0;var current_line=1;var current_pos=0;var
OUTPUT=“”;var
to_utf8=options.ascii_only?function(str,identifier){if(options.ecma>=6){str=str.replace(/[udc00-udfff]/g,function(ch){var
code=get_full_char_code(ch,0).toString(16);return“\u{”code
“}”})}return
str.replace(//g,function(ch){var
code=ch.charCodeAt(0).toString(16);if(code.length<=2&&!identifier){while(code.length<2)code=“0”+code;return“\x”+code}else{while(code.length<4)code=“0”+code;return“\u”+code}})}:function(str){var
s=“”;for(var i=0,len=str.length;i<len;i++){if(is_surrogate_pair_head(str)&&!is_surrogate_pair_tail(str)||is_surrogate_pair_tail(str)&&!is_surrogate_pair_head(str)){s+=“\u”+str.charCodeAt(i).toString(16)}else{s+=str}}return s};function make_string(str,quote){var dq=0,sq=0;str=str.replace(//g,function(s,i){switch(s){case'“':++dq;return'”';case“'”:++sq;return“'”;case“\”:return“\\”;case“n”:return“\n”;case“r”:return“\r”;case“t”:return“\t”;case“b”:return“\b”;case“f”:return“\f”;case“v”:return
options.ie8?“\x0B”:“\v”;case“u2028”:return“\u2028”;case“u2029”:return“\u2029”;case“ufeff”:return“\ufeff”;case“0”:return//.test(get_full_char(str,i+1))?“\x00”:“\0”}return
s});function
quote_single(){return“'”+str.replace(/x27/g,“\'”)+“'”}function
quote_double(){return'“'+str.replace(/x22/g,'\”')+'“'}function
quote_template(){return”`“+str.replace(/`/g,”\`“)+”`“}str=to_utf8(str);if(quote===”`“)return
quote_template();switch(options.quote_style){case 1:return
quote_single();case 2:return quote_double();case 3:return
quote==”'“?quote_single():quote_double();default:return
dq>sq?quote_single():quote_double()}}function
encode_string(str,quote){var
ret=make_string(str,quote);if(options.inline_script){ret=ret.replace(/<x2fscript([>/tnfr
])/gi,”<\/script$1“);ret=ret.replace(/x3c!–/g,”\x3c!–“);ret=ret.replace(/–x3e/g,”–\x3e“)}return
ret}function
make_name(name){name=name.toString();name=to_utf8(name,true);return
name}function make_indent(back){return repeat_string(”
“,options.indent_start+indentation-back*options.indent_level)}var
might_need_space=false;var might_need_semicolon=false;var
might_add_newline=0;var need_newline_indented=false;var
need_space=false;var newline_insert=-1;var last=”“;var
mapping_token,mapping_name,mappings=options.source_map&&[];var
do_add_mapping=mappings?function(){mappings.forEach(function(mapping){try{options.source_map.add(mapping.token.file,mapping.line,mapping.col,mapping.token.line,mapping.token.col,!mapping.name&&mapping.token.type==”name“?mapping.token.value:mapping.name)}catch(ex){AST_Node.warn(”Couldn't
figure out mapping for {file}:{line},{col} → {cline},{ccol}
[{name}]“,{file:mapping.token.file,line:mapping.token.line,col:mapping.token.col,cline:mapping.line,ccol:mapping.col,name:mapping.name||”“})}});mappings=[]}:noop;var
ensure_line_len=options.max_line_len?function(){if(current_col>options.max_line_len){if(might_add_newline){var
left=OUTPUT.slice(0,might_add_newline);var
right=OUTPUT.slice(might_add_newline);if(mappings){var
delta=right.length-current_col;mappings.forEach(function(mapping){mapping.line++;mapping.col+=delta})}OUTPUT=left+”n“+right;current_line++;current_pos++;current_col=right.length}if(current_col>options.max_line_len){AST_Node.warn(”Output
exceeds {max_line_len}
characters“,options)}}if(might_add_newline){might_add_newline=0;do_add_mapping()}}:noop;var
requireSemicolonChars=makePredicate(”( [ + * / - , . `“);function
print(str){str=String(str);var ch=get_full_char(str,0);var
prev=get_full_char(last,last.length-1);if(need_newline_indented&&ch){need_newline_indented=false;if(ch!=”n“){print(”n“);indent()}}if(need_space&&ch){need_space=false;if(!//.test(ch)){space()}}newline_insert=-1;var
prev=last.charAt(last.length-1);if(might_need_semicolon){might_need_semicolon=false;if(prev==”:“&&ch==”}“||(!ch||”;}“.indexOf(ch)<0)&&prev!=”;“){if(options.semicolons||requireSemicolonChars(ch)){OUTPUT+=”;“;current_col++;current_pos++}else{ensure_line_len();OUTPUT+=”n“;current_pos++;current_line++;current_col=0;if(/^s+$/.test(str)){might_need_semicolon=true}}if(!options.beautify)might_need_space=false}}if(!options.beautify&&options.preserve_line&&stack){var
target_line=stack.start.line;while(current_line<target_line){ensure_line_len();OUTPUT+=”n“;current_pos++;current_line++;current_col=0;might_need_space=false}}if(might_need_space){if(is_identifier_char(prev)&&(is_identifier_char(ch)||ch==”\“)||ch==”/“&&ch==prev||(ch==”+“||ch==”-“)&&ch==last){OUTPUT+=”
“;current_col++;current_pos++}might_need_space=false}if(mapping_token){mappings.push({token:mapping_token,name:mapping_name,line:current_line,col:current_col});mapping_token=false;if(!might_add_newline)do_add_mapping()}OUTPUT+=str;current_pos+=str.length;var
a=str.split(/r?n/),n=a.length-1;current_line+=n;current_col+=a.length;if(n>0){ensure_line_len();current_col=a.length}last=str}var
star=function(){print(”*“)};var space=options.beautify?function(){print(”
“)}:function(){might_need_space=true};var
indent=options.beautify?function(half){if(options.beautify){print(make_indent(half?.5:0))}}:noop;var
with_indent=options.beautify?function(col,cont){if(col===true)col=next_indent();var
save_indentation=indentation;indentation=col;var
ret=cont();indentation=save_indentation;return
ret}:function(col,cont){return cont()};var
newline=options.beautify?function(){if(newline_insert<0)return print(”n“);if(OUTPUT!=”n“){OUTPUT=OUTPUT.slice(0,newline_insert)+”n“+OUTPUT.slice(newline_insert);current_pos++;current_line++}newline_insert++}:options.max_line_len?function(){ensure_line_len();might_add_newline=OUTPUT.length}:noop;var
semicolon=options.beautify?function(){print(”;“)}:function(){might_need_semicolon=true};function
force_semicolon(){might_need_semicolon=false;print(”;“)}function
next_indent(){return indentation+options.indent_level}function
with_block(cont){var
ret;print(”{“);newline();with_indent(next_indent(),function(){ret=cont()});indent();print(”}“);return
ret}function with_parens(cont){print(”(“);var ret=cont();print(”)“);return
ret}function with_square(cont){print(”[“);var ret=cont();print(”]“);return
ret}function comma(){print(”,“);space()}function
colon(){print(”:“);space()}var
add_mapping=mappings?function(token,name){mapping_token=token;mapping_name=name}:noop;function
get(){if(might_add_newline){ensure_line_len()}return OUTPUT}function
has_nlb(){var index=OUTPUT.lastIndexOf(”n“);return/^
*$/.test(OUTPUT.slice(index+1))}function prepend_comments(node){var
self=this;var
start=node.start;if(!start)return;if(start.comments_before&&start.comments_before._dumped===self)return;var
comments=start.comments_before;if(!comments){comments=start.comments_before=[]}comments._dumped=self;if(node
instanceof AST_Exit&&node.value){var tw=new
TreeWalker(function(node){var parent=tw.parent();if(parent instanceof
AST_Exit||parent instanceof
AST_Binary&&parent.left===node||parent.TYPE==”Call“&&parent.expression===node||parent
instanceof AST_Conditional&&parent.condition===node||parent
instanceof AST_Dot&&parent.expression===node||parent instanceof AST_Sequence&&parent.expressions===node||parent instanceof
AST_Sub&&parent.expression===node||parent instanceof
AST_UnaryPostfix){if(!node.start)return;var
text=node.start.comments_before;if(text&&text._dumped!==self){text._dumped=self;comments=comments.concat(text)}}else{return
true}});tw.push(node);node.value.walk(tw)}if(current_pos==0){if(comments.length>0&&options.shebang&&comments.type==”comment5“){print(”#!“+comments.shift().value+”n“);indent()}var
preamble=options.preamble;if(preamble){print(preamble.replace(/rn?||s*$/g,”n“))}}comments=comments.filter(comment_filter,node);if(comments.length==0)return;var
last_nlb=has_nlb();comments.forEach(function(c,i){if(!last_nlb){if(c.nlb){print(”n“);indent();last_nlb=true}else
if(i>0){space()}}if(/comment/.test(c.type)){print(”//“+c.value.replace(/__PURE__/g,”
“)+”n“);indent();last_nlb=true}else if(c.type==”comment2“){print(”/*“+c.value.replace(/__PURE__/g,”
“)+”*/“);last_nlb=false}});if(!last_nlb){if(start.nlb){print(”n“);indent()}else{space()}}}function
append_comments(node,tail){var self=this;var
token=node.end;if(!token)return;var comments=token;if(!comments||comments._dumped===self)return;if(!(node
instanceof AST_Statement||all(comments,function©{return!/comment/.test(c.type)})))return;comments._dumped=self;var
insert=OUTPUT.length;comments.filter(comment_filter,node).forEach(function(c,i){need_space=false;if(need_newline_indented){print(”n“);indent();need_newline_indented=false}else
if(c.nlb&&(i>0||!has_nlb())){print(”n“);indent()}else
if(i>0||!tail){space()}if(/comment/.test(c.type)){print(”//“+c.value.replace(/__PURE__/g,”
“));need_newline_indented=true}else if(c.type==”comment2“){print(”/*“+c.value.replace(/__PURE__/g,”
“)+”*/“);need_space=true}});if(OUTPUT.length>insert)newline_insert=insert}var
stack=[];return{get:get,toString:get,indent:indent,indentation:function(){return
indentation},current_width:function(){return
current_col-indentation},should_break:function(){return
options.width&&this.current_width()>=options.width},newline:newline,print:print,star:star,space:space,comma:comma,colon:colon,last:function(){return
last},semicolon:semicolon,force_semicolon:force_semicolon,to_utf8:to_utf8,print_name:function(name){print(make_name(name))},print_string:function(str,quote,escape_directive){var
encoded=encode_string(str,quote);if(escape_directive===true&&encoded.indexOf(”\“)===-1){if(!EXPECT_DIRECTIVE.test(OUTPUT)){force_semicolon()}force_semicolon()}print(encoded)},print_template_string_chars:function(str){var
encoded=encode_string(str,”`“).replace(/${/g,”\${“);return
print(encoded.substr(1,encoded.length-2))},encode_string:encode_string,next_indent:next_indent,with_indent:with_indent,with_block:with_block,with_parens:with_parens,with_square:with_square,add_mapping:add_mapping,option:function(opt){return
options},prepend_comments:readonly?noop:prepend_comments,append_comments:readonly||comment_filter===return_false?noop:append_comments,line:function(){return
current_line},col:function(){return current_col},pos:function(){return
current_pos},push_node:function(node){stack.push(node)},pop_node:function(){return
stack.pop()},parent:function(n){return stack}}}(function(){function
DEFPRINT(nodetype,generator){nodetype.DEFMETHOD(”_codegen“,generator)}var
in_directive=false;var active_scope=null;var
use_asm=null;AST_Node.DEFMETHOD(”print“,function(stream,force_parens){var
self=this,generator=self._codegen;if(self instanceof
AST_Scope){active_scope=self}else if(!use_asm&&self instanceof
AST_Directive&&self.value==”use asm“){use_asm=active_scope}function
doit(){stream.prepend_comments(self);self.add_source_map(stream);generator(self,stream);stream.append_comments(self)}stream.push_node(self);if(force_parens||self.needs_parens(stream)){stream.with_parens(doit)}else{doit()}stream.pop_node();if(self===use_asm){use_asm=null}});AST_Node.DEFMETHOD(”_print“,AST_Node.prototype.print);AST_Node.DEFMETHOD(”print_to_string“,function(options){var
s=OutputStream(options);this.print(s);return s.get()});function
PARENS(nodetype,func){if(Array.isArray(nodetype)){nodetype.forEach(function(nodetype){PARENS(nodetype,func)})}else{nodetype.DEFMETHOD(”needs_parens“,func)}}PARENS(AST_Node,return_false);PARENS(AST_Function,function(output){if(first_in_statement(output)){return
true}if(output.option(”webkit“)){var p=output.parent();if(p instanceof
AST_PropAccess&&p.expression===this){return
true}}if(output.option(”wrap_iife“)){var p=output.parent();return p
instanceof AST_Call&&p.expression===this}return
false});PARENS(AST_Arrow,function(output){var p=output.parent();return p
instanceof AST_PropAccess&&p.expression===this});PARENS(,first_in_statement);PARENS(AST_Unary,function(output){var
p=output.parent();return p instanceof
AST_PropAccess&&p.expression===this||p instanceof
AST_Call&&p.expression===this||p instanceof
AST_Binary&&p.operator===”**“&&this instanceof
AST_UnaryPrefix&&p.left===this&&this.operator!==”++“&&this.operator!==”–“});PARENS(AST_Await,function(output){var
p=output.parent();return p instanceof
AST_PropAccess&&p.expression===this||p instanceof
AST_Call&&p.expression===this||output.option(”safari10“)&&p
instanceof AST_UnaryPrefix});PARENS(AST_Sequence,function(output){var
p=output.parent();return p instanceof AST_Call||p instanceof AST_Unary||p
instanceof AST_Binary||p instanceof AST_VarDef||p instanceof
AST_PropAccess||p instanceof AST_Array||p instanceof AST_ObjectProperty||p
instanceof AST_Conditional||p instanceof AST_Arrow||p instanceof
AST_DefaultAssign||p instanceof AST_Expansion||p instanceof
AST_ForOf&&this===p.object||p instanceof
AST_Yield});PARENS(AST_Binary,function(output){var p=output.parent();if(p
instanceof AST_Call&&p.expression===this)return true;if(p
instanceof AST_Unary)return true;if(p instanceof
AST_PropAccess&&p.expression===this)return true;if(p instanceof
AST_Binary){var po=p.operator,pp=PRECEDENCE;var so=this.operator,sp=PRECEDENCE;if(pp>sp||pp==sp&&this===p.right){return
true}}});PARENS(AST_Yield,function(output){var p=output.parent();if(p
instanceof AST_Binary&&p.operator!==”=“)return true;if(p instanceof
AST_Call&&p.expression===this)return true;if(p instanceof
AST_Conditional&&p.condition===this)return true;if(p instanceof
AST_Unary)return true;if(p instanceof
AST_PropAccess&&p.expression===this)return
true});PARENS(AST_PropAccess,function(output){var p=output.parent();if(p
instanceof AST_New&&p.expression===this){var
parens=false;this.walk(new TreeWalker(function(node){if(parens||node
instanceof AST_Scope)return true;if(node instanceof
AST_Call){parens=true;return true}}));return
parens}});PARENS(AST_Call,function(output){var p=output.parent(),p1;if(p
instanceof AST_New&&p.expression===this)return true;return
this.expression instanceof AST_Function&&p instanceof
AST_PropAccess&&p.expression===this&&(p1=output.parent(1))instanceof
AST_Assign&&p1.left===p});PARENS(AST_New,function(output){var
p=output.parent();if(!need_constructor_parens(this,output)&&(p
instanceof AST_PropAccess||p instanceof
AST_Call&&p.expression===this))return
true});PARENS(AST_Number,function(output){var p=output.parent();if(p
instanceof AST_PropAccess&&p.expression===this){var
value=this.getValue();if(value<0||/^0/.test(make_num(value))){return
true}}});PARENS(,function(output){var
p=output.parent();if(p instanceof AST_Unary)return true;if(p instanceof
AST_Binary&&!(p instanceof AST_Assign))return true;if(p instanceof
AST_Call&&p.expression===this)return true;if(p instanceof
AST_Conditional&&p.condition===this)return true;if(p instanceof
AST_PropAccess&&p.expression===this)return true;if(this instanceof
AST_Assign&&this.left instanceof
AST_Destructuring&&this.left.is_array===false)return
true});DEFPRINT(AST_Directive,function(self,output){output.print_string(self.value,self.quote);output.semicolon()});DEFPRINT(AST_Expansion,function(self,output){output.print(”…“);self.expression.print(output)});DEFPRINT(AST_Destructuring,function(self,output){output.print(self.is_array?”[“:”{“);var
len=self.names.length;self.names.forEach(function(name,i){if(i>0)output.comma();name.print(output);if(i==len-1&&name
instanceof
AST_Hole)output.comma()});output.print(self.is_array?”]“:”}“)});DEFPRINT(AST_Debugger,function(self,output){output.print(”debugger“);output.semicolon()});function
display_body(body,is_toplevel,output,allow_directives){var
last=body.length-1;in_directive=allow_directives;body.forEach(function(stmt,i){if(in_directive===true&&!(stmt
instanceof AST_Directive||stmt instanceof AST_EmptyStatement||stmt
instanceof AST_SimpleStatement&&stmt.body instanceof
AST_String)){in_directive=false}if(!(stmt instanceof
AST_EmptyStatement)){output.indent();stmt.print(output);if(!(i==last&&is_toplevel)){output.newline();if(is_toplevel)output.newline()}}if(in_directive===true&&stmt
instanceof AST_SimpleStatement&&stmt.body instanceof
AST_String){in_directive=false}});in_directive=false}AST_StatementWithBody.DEFMETHOD(”_do_print_body“,function(output){force_statement(this.body,output)});DEFPRINT(AST_Statement,function(self,output){self.body.print(output);output.semicolon()});DEFPRINT(AST_Toplevel,function(self,output){display_body(self.body,true,output,true);output.print(”“)});DEFPRINT(AST_LabeledStatement,function(self,output){self.label.print(output);output.colon();self.body.print(output)});DEFPRINT(AST_SimpleStatement,function(self,output){self.body.print(output);output.semicolon()});function
print_bracketed(self,output,allow_directives){if(self.body.length>0){output.with_block(function(){display_body(self.body,false,output,allow_directives)})}else{output.print(”{“);output.with_indent(output.next_indent(),function(){output.append_comments(self,true)});output.print(”}“)}}DEFPRINT(AST_BlockStatement,function(self,output){print_bracketed(self,output)});DEFPRINT(AST_EmptyStatement,function(self,output){output.semicolon()});DEFPRINT(AST_Do,function(self,output){output.print(”do“);output.space();make_block(self.body,output);output.space();output.print(”while“);output.space();output.with_parens(function(){self.condition.print(output)});output.semicolon()});DEFPRINT(AST_While,function(self,output){output.print(”while“);output.space();output.with_parens(function(){self.condition.print(output)});output.space();self._do_print_body(output)});DEFPRINT(AST_For,function(self,output){output.print(”for“);output.space();output.with_parens(function(){if(self.init){if(self.init
instanceof
AST_Definitions){self.init.print(output)}else{parenthesize_for_noin(self.init,output,true)}output.print(”;“);output.space()}else{output.print(”;“)}if(self.condition){self.condition.print(output);output.print(”;“);output.space()}else{output.print(”;“)}if(self.step){self.step.print(output)}});output.space();self._do_print_body(output)});DEFPRINT(AST_ForIn,function(self,output){output.print(”for“);output.space();output.with_parens(function(){self.init.print(output);output.space();output.print(self
instanceof
AST_ForOf?”of“:”in“);output.space();self.object.print(output)});output.space();self._do_print_body(output)});DEFPRINT(AST_With,function(self,output){output.print(”with“);output.space();output.with_parens(function(){self.expression.print(output)});output.space();self._do_print_body(output)});AST_Lambda.DEFMETHOD(”_do_print“,function(output,nokeyword){var
self=this;if(!nokeyword){if(self.async){output.print(”async“);output.space()}output.print(”function“);if(self.is_generator){output.star()}if(self.name){output.space()}}if(self.name
instanceof AST_Symbol){self.name.print(output)}else
if(nokeyword&&self.name instanceof
AST_Node){output.with_square(function(){self.name.print(output)})}output.with_parens(function(){self.argnames.forEach(function(arg,i){if(i)output.comma();arg.print(output)})});output.space();print_bracketed(self,output,true)});DEFPRINT(AST_Lambda,function(self,output){self._do_print(output)});DEFPRINT(AST_PrefixedTemplateString,function(self,output){self.prefix.print(output);self.template_string.print(output)});DEFPRINT(AST_TemplateString,function(self,output){var
is_tagged=output.parent()instanceof
AST_PrefixedTemplateString;output.print(”`“);for(var
i=0;i<self.segments.length;i++){if(!(self.segmentsinstanceof
AST_TemplateSegment)){output.print(”${“);self.segments.print(output);output.print(”}“)}else
if(is_tagged){output.print(self.segments.raw)}else{output.print_template_string_chars(self.segments.value)}}output.print(”`“)});AST_Arrow.DEFMETHOD(”_do_print“,function(output){var
self=this;var parent=output.parent();var needs_parens=parent instanceof
AST_Binary||parent instanceof AST_Unary||parent instanceof
AST_Call&&self===parent.expression;if(needs_parens){output.print(”(“)}if(self.async){output.print(”async“);output.space()}if(self.argnames.length===1&&self.argnamesinstanceof
AST_Symbol){self.argnames.print(output)}else{output.with_parens(function(){self.argnames.forEach(function(arg,i){if(i)output.comma();arg.print(output)})})}output.space();output.print(”=>“);output.space();if(self.body
instanceof
AST_Node){self.body.print(output)}else{print_bracketed(self,output)}if(needs_parens){output.print(”)“)}});AST_Exit.DEFMETHOD(”_do_print“,function(output,kind){output.print(kind);if(this.value){output.space();this.value.print(output)}output.semicolon()});DEFPRINT(AST_Return,function(self,output){self._do_print(output,”return“)});DEFPRINT(AST_Throw,function(self,output){self._do_print(output,”throw“)});DEFPRINT(AST_Yield,function(self,output){var
star=self.is_star?”*“:”“;output.print(”yield“+star);if(self.expression){output.space();self.expression.print(output)}});DEFPRINT(AST_Await,function(self,output){output.print(”await“);output.space();var
e=self.expression;var parens=!(e instanceof AST_Call||e instanceof
AST_SymbolRef||e instanceof AST_PropAccess||e instanceof AST_Unary||e
instanceof
AST_Constant);if(parens)output.print(”(“);self.expression.print(output);if(parens)output.print(”)“)});AST_LoopControl.DEFMETHOD(”_do_print“,function(output,kind){output.print(kind);if(this.label){output.space();this.label.print(output)}output.semicolon()});DEFPRINT(AST_Break,function(self,output){self._do_print(output,”break“)});DEFPRINT(AST_Continue,function(self,output){self._do_print(output,”continue“)});function
make_then(self,output){var
b=self.body;if(output.option(”bracketize“)||output.option(”ie8“)&&b
instanceof AST_Do)return make_block(b,output);if(!b)return
output.force_semicolon();while(true){if(b instanceof
AST_If){if(!b.alternative){make_block(self.body,output);return}b=b.alternative}else
if(b instanceof AST_StatementWithBody){b=b.body}else
break}force_statement(self.body,output)}DEFPRINT(AST_If,function(self,output){output.print(”if“);output.space();output.with_parens(function(){self.condition.print(output)});output.space();if(self.alternative){make_then(self,output);output.space();output.print(”else“);output.space();if(self.alternative
instanceof AST_If)self.alternative.print(output);else
force_statement(self.alternative,output)}else{self._do_print_body(output)}});DEFPRINT(AST_Switch,function(self,output){output.print(”switch“);output.space();output.with_parens(function(){self.expression.print(output)});output.space();var
last=self.body.length-1;if(last<0)output.print(”{}“);else
output.with_block(function(){self.body.forEach(function(branch,i){output.indent(true);branch.print(output);if(i<last&&branch.body.length>0)output.newline()})})});AST_SwitchBranch.DEFMETHOD(”_do_print_body“,function(output){output.newline();this.body.forEach(function(stmt){output.indent();stmt.print(output);output.newline()})});DEFPRINT(AST_Default,function(self,output){output.print(”default:“);self._do_print_body(output)});DEFPRINT(AST_Case,function(self,output){output.print(”case“);output.space();self.expression.print(output);output.print(”:“);self._do_print_body(output)});DEFPRINT(AST_Try,function(self,output){output.print(”try“);output.space();print_bracketed(self,output);if(self.bcatch){output.space();self.bcatch.print(output)}if(self.bfinally){output.space();self.bfinally.print(output)}});DEFPRINT(AST_Catch,function(self,output){output.print(”catch“);output.space();output.with_parens(function(){self.argname.print(output)});output.space();print_bracketed(self,output)});DEFPRINT(AST_Finally,function(self,output){output.print(”finally“);output.space();print_bracketed(self,output)});AST_Definitions.DEFMETHOD(”_do_print“,function(output,kind){output.print(kind);output.space();this.definitions.forEach(function(def,i){if(i)output.comma();def.print(output)});var
p=output.parent();var in_for=p instanceof AST_For||p instanceof
AST_ForIn;var
avoid_semicolon=in_for&&p.init===this;if(!avoid_semicolon)output.semicolon()});DEFPRINT(AST_Let,function(self,output){self._do_print(output,”let“)});DEFPRINT(AST_Var,function(self,output){self._do_print(output,”var“)});DEFPRINT(AST_Const,function(self,output){self._do_print(output,”const“)});DEFPRINT(AST_Import,function(self,output){output.print(”import“);output.space();if(self.imported_name){self.imported_name.print(output)}if(self.imported_name&&self.imported_names){output.print(”,“);output.space()}if(self.imported_names){if(self.imported_names.length===1&&self.imported_names.foreign_name.name===”*“){self.imported_names.print(output)}else{output.print(”{“);self.imported_names.forEach(function(name_import,i){output.space();name_import.print(output);if(i<self.imported_names.length-1){output.print(”,“)}});output.space();output.print(”}“)}}if(self.imported_name||self.imported_names){output.space();output.print(”from“);output.space()}self.module_name.print(output);output.semicolon()});DEFPRINT(AST_NameMapping,function(self,output){var
is_import=output.parent()instanceof AST_Import;var
definition=self.name.definition();var
names_are_different=(definition&&definition.mangled_name||self.name.name)!==self.foreign_name.name;if(names_are_different){if(is_import){output.print(self.foreign_name.name)}else{self.name.print(output)}output.space();output.print(”as“);output.space();if(is_import){self.name.print(output)}else{output.print(self.foreign_name.name)}}else{self.name.print(output)}});DEFPRINT(AST_Export,function(self,output){output.print(”export“);output.space();if(self.is_default){output.print(”default“);output.space()}if(self.exported_names){if(self.exported_names.length===1&&self.exported_names.name.name===”*“){self.exported_names.print(output)}else{output.print(”{“);self.exported_names.forEach(function(name_export,i){output.space();name_export.print(output);if(i<self.exported_names.length-1){output.print(”,“)}});output.space();output.print(”}“)}}else
if(self.exported_value){self.exported_value.print(output)}else
if(self.exported_definition){self.exported_definition.print(output);if(self.exported_definition
instanceof
AST_Definitions)return}if(self.module_name){output.space();output.print(”from“);output.space();self.module_name.print(output)}output.semicolon()});function
parenthesize_for_noin(node,output,noin){var
parens=false;if(noin)node.walk(new
TreeWalker(function(node){if(parens||node instanceof AST_Scope)return
true;if(node instanceof
AST_Binary&&node.operator==”in“){parens=true;return
true}}));node.print(output,parens)}DEFPRINT(AST_VarDef,function(self,output){self.name.print(output);if(self.value){output.space();output.print(”=“);output.space();var
p=output.parent(1);var noin=p instanceof AST_For||p instanceof
AST_ForIn;parenthesize_for_noin(self.value,output,noin)}});DEFPRINT(AST_Call,function(self,output){self.expression.print(output);if(self
instanceof
AST_New&&!need_constructor_parens(self,output))return;if(self.expression
instanceof AST_Call||self.expression instanceof
AST_Lambda){output.add_mapping(self.start)}output.with_parens(function(){self.args.forEach(function(expr,i){if(i)output.comma();expr.print(output)})})});DEFPRINT(AST_New,function(self,output){output.print(”new“);output.space();AST_Call.prototype._codegen(self,output)});AST_Sequence.DEFMETHOD(”_do_print“,function(output){this.expressions.forEach(function(node,index){if(index>0){output.comma();if(output.should_break()){output.newline();output.indent()}}node.print(output)})});DEFPRINT(AST_Sequence,function(self,output){self._do_print(output)});DEFPRINT(AST_Dot,function(self,output){var
expr=self.expression;expr.print(output);var
prop=self.property;if(output.option(”ie8“)&&RESERVED_WORDS(prop)){output.print(”“)}else{if(expr
instanceof AST_Number&&expr.getValue()>=0){if(!//i.test(output.last())){output.print(”.“)}}output.print(”.“);output.add_mapping(self.end);output.print_name(prop)}});DEFPRINT(AST_Sub,function(self,output){self.expression.print(output);output.print(”“)});DEFPRINT(AST_UnaryPrefix,function(self,output){var
op=self.operator;output.print(op);if(/^/i.test(op)||/$/.test(op)&&self.expression instanceof
AST_UnaryPrefix&&/^/.test(self.expression.operator)){output.space()}self.expression.print(output)});DEFPRINT(AST_UnaryPostfix,function(self,output){self.expression.print(output);output.print(self.operator)});DEFPRINT(AST_Binary,function(self,output){var
op=self.operator;self.left.print(output);if(op==”>“&&self.left
instanceof
AST_UnaryPostfix&&self.left.operator==”–“){output.print(”
“)}else{output.space()}output.print(op);if((op==”<“||op==”<<“)&&self.right
instanceof
AST_UnaryPrefix&&self.right.operator==”!“&&self.right.expression
instanceof
AST_UnaryPrefix&&self.right.expression.operator==”–“){output.print(”
“)}else{output.space()}self.right.print(output)});DEFPRINT(AST_Conditional,function(self,output){self.condition.print(output);output.space();output.print(”?“);output.space();self.consequent.print(output);output.space();output.colon();self.alternative.print(output)});DEFPRINT(AST_Array,function(self,output){output.with_square(function(){var
a=self.elements,len=a.length;if(len>0)output.space();a.forEach(function(exp,i){if(i)output.comma();exp.print(output);if(i===len-1&&exp
instanceof
AST_Hole)output.comma()});if(len>0)output.space()})});DEFPRINT(AST_Object,function(self,output){if(self.properties.length>0)output.with_block(function(){self.properties.forEach(function(prop,i){if(i){output.print(”,“);output.newline()}output.indent();prop.print(output)});output.newline()});else
output.print(”{}“)});DEFPRINT(AST_Class,function(self,output){output.print(”class“);output.space();if(self.name){self.name.print(output);output.space()}if(self.extends){var
parens=!(self.extends instanceof AST_SymbolRef)&&!(self.extends
instanceof AST_PropAccess)&&!(self.extends instanceof
AST_ClassExpression)&&!(self.extends instanceof
AST_Function);output.print(”extends“);if(parens){output.print(”(“)}else{output.space()}self.extends.print(output);if(parens){output.print(”)“)}else{output.space()}}if(self.properties.length>0)output.with_block(function(){self.properties.forEach(function(prop,i){if(i){output.newline()}output.indent();prop.print(output)});output.newline()});else
output.print(”{}“)});DEFPRINT(AST_NewTarget,function(self,output){output.print(”new.target“)});function
print_property_name(key,quote,output){if(output.option(”quote_keys“)){output.print_string(key)}else
if(”“+ +key==key&&key>=0){output.print(make_num(key))}else
if(RESERVED_WORDS(key)?!output.option(”ie8“):is_identifier_string(key)){if(quote&&output.option(”keep_quoted_props“)){output.print_string(key,quote)}else{output.print_name(key)}}else{output.print_string(key,quote)}}DEFPRINT(AST_ObjectKeyVal,function(self,output){function
get_name(self){var def=self.definition();return
def?def.mangled_name||def.name:self.name}var
allowShortHand=output.option(”shorthand“);if(allowShortHand&&self.value
instanceof
AST_Symbol&&is_identifier_string(self.key)&&get_name(self.value)===self.key&&is_identifier(self.key)){print_property_name(self.key,self.quote,output)}else
if(allowShortHand&&self.value instanceof
AST_DefaultAssign&&self.value.left instanceof
AST_Symbol&&is_identifier_string(self.key)&&get_name(self.value.left)===self.key){print_property_name(self.key,self.quote,output);output.space();output.print(”=“);output.space();self.value.right.print(output)}else{if(!(self.key
instanceof
AST_Node)){print_property_name(self.key,self.quote,output)}else{output.with_square(function(){self.key.print(output)})}output.colon();self.value.print(output)}});AST_ObjectProperty.DEFMETHOD(”_print_getter_setter“,function(type,output){var
self=this;if(self.static){output.print(”static“);output.space()}if(type){output.print(type);output.space()}if(self.key
instanceof
AST_SymbolMethod){print_property_name(self.key.name,self.quote,output)}else{output.with_square(function(){self.key.print(output)})}self.value._do_print(output,true)});DEFPRINT(AST_ObjectSetter,function(self,output){self._print_getter_setter(”set“,output)});DEFPRINT(AST_ObjectGetter,function(self,output){self._print_getter_setter(”get“,output)});DEFPRINT(AST_ConciseMethod,function(self,output){self._print_getter_setter(self.is_generator&&”*“||self.async&&”async“,output)});AST_Symbol.DEFMETHOD(”_do_print“,function(output){var
def=this.definition();output.print_name(def?def.mangled_name||def.name:this.name)});DEFPRINT(AST_Symbol,function(self,output){self._do_print(output)});DEFPRINT(AST_Hole,noop);DEFPRINT(AST_This,function(self,output){output.print(”this“)});DEFPRINT(AST_Super,function(self,output){output.print(”super“)});DEFPRINT(AST_Constant,function(self,output){output.print(self.getValue())});DEFPRINT(AST_String,function(self,output){output.print_string(self.getValue(),self.quote,in_directive)});DEFPRINT(AST_Number,function(self,output){if(use_asm&&self.start&&self.start.raw!=null){output.print(self.start.raw)}else{output.print(make_num(self.getValue()))}});DEFPRINT(AST_RegExp,function(self,output){var
regexp=self.getValue();var
str=regexp.toString();if(regexp.raw_source){str=”/“+regexp.raw_source+str.slice(str.lastIndexOf(”/“))}str=output.to_utf8(str);output.print(str);var
p=output.parent();if(p instanceof
AST_Binary&&/^in/.test(p.operator)&&p.left===self)output.print(”
“)});function
force_statement(stat,output){if(output.option(”bracketize“)){make_block(stat,output)}else{if(!stat||stat
instanceof AST_EmptyStatement)output.force_semicolon();else
stat.print(output)}}function
need_constructor_parens(self,output){if(self.args.length>0)return
true;return output.option(”beautify“)}function best_of(a){var best=a,len=best.length;for(var i=1;i<a.length;++i){if(a.length<len){best=a;len=best.length}}return best}function make_num(num){var
str=num.toString(10),a=,m;if(Math.floor(num)===num){if(num>=0){a.push(”0x“+num.toString(16).toLowerCase(),”0“+num.toString(8))}else{a.push(”-0x“+(-num).toString(16).toLowerCase(),”-0“+(-num).toString(8))}if(m=/^(.*?)(0+)$/.exec(num)){a.push(m+”e“+m.length)}}else
if(m=/^0?.(0+)(.*)$/.exec(num)){a.push(m+”e-“+(m.length+m.length),str.substr(str.indexOf(”.“)))}return
best_of(a)}function make_block(stmt,output){if(!stmt||stmt instanceof
AST_EmptyStatement)output.print(”{}“);else if(stmt instanceof
AST_BlockStatement)stmt.print(output);else
output.with_block(function(){output.indent();stmt.print(output);output.newline()})}function
DEFMAP(nodetype,generator){nodetype.DEFMETHOD(”add_source_map“,function(stream){generator(this,stream)})}DEFMAP(AST_Node,noop);function
basic_sourcemap_gen(self,output){output.add_mapping(self.start)}DEFMAP(AST_Directive,basic_sourcemap_gen);DEFMAP(AST_Debugger,basic_sourcemap_gen);DEFMAP(AST_Symbol,basic_sourcemap_gen);DEFMAP(AST_Jump,basic_sourcemap_gen);DEFMAP(AST_StatementWithBody,basic_sourcemap_gen);DEFMAP(AST_LabeledStatement,noop);DEFMAP(AST_Lambda,basic_sourcemap_gen);DEFMAP(AST_Switch,basic_sourcemap_gen);DEFMAP(AST_SwitchBranch,basic_sourcemap_gen);DEFMAP(AST_BlockStatement,basic_sourcemap_gen);DEFMAP(AST_Toplevel,noop);DEFMAP(AST_New,basic_sourcemap_gen);DEFMAP(AST_Try,basic_sourcemap_gen);DEFMAP(AST_Catch,basic_sourcemap_gen);DEFMAP(AST_Finally,basic_sourcemap_gen);DEFMAP(AST_Definitions,basic_sourcemap_gen);DEFMAP(AST_Constant,basic_sourcemap_gen);DEFMAP(AST_ObjectSetter,function(self,output){output.add_mapping(self.start,self.key.name)});DEFMAP(AST_ObjectGetter,function(self,output){output.add_mapping(self.start,self.key.name)});DEFMAP(AST_ObjectProperty,function(self,output){output.add_mapping(self.start,self.key)})})();
/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;function Compressor(options,false_by_default){if(!(this
instanceof Compressor))return new
Compressor(options,false_by_default);TreeTransformer.call(this,this.before,this.after);this.options=defaults(options,{arrows:!false_by_default,booleans:!false_by_default,collapse_vars:!false_by_default,comparisons:!false_by_default,computed_props:!false_by_default,conditionals:!false_by_default,dead_code:!false_by_default,drop_console:false,drop_debugger:!false_by_default,ecma:5,evaluate:!false_by_default,expression:false,global_defs:{},hoist_funs:false,hoist_props:!false_by_default,hoist_vars:false,ie8:false,if_return:!false_by_default,inline:!false_by_default,join_vars:!false_by_default,keep_classnames:false,keep_fargs:true,keep_fnames:false,keep_infinity:false,loops:!false_by_default,negate_iife:!false_by_default,passes:1,properties:!false_by_default,pure_getters:!false_by_default&&“strict”,pure_funcs:null,reduce_funcs:!false_by_default,reduce_vars:!false_by_default,sequences:!false_by_default,side_effects:!false_by_default,switches:!false_by_default,top_retain:null,toplevel:!!(options&&options),typeofs:!false_by_default,unsafe:false,unsafe_arrows:false,unsafe_comps:false,unsafe_Function:false,unsafe_math:false,unsafe_methods:false,unsafe_proto:false,unsafe_regexp:false,unsafe_undefined:false,unused:!false_by_default,warnings:false},true);var
global_defs=this.options;if(typeof
global_defs==“object”)for(var key in
global_defs){if(/^@/.test(key)&&HOP(global_defs,key)){global_defs=parse(global_defs,{expression:true})}}if(this.options===true)this.options=3;var pure_funcs=this.options;if(typeof
pure_funcs==“function”){this.pure_funcs=pure_funcs}else{this.pure_funcs=pure_funcs?function(node){return
pure_funcs.indexOf(node.expression.print_to_string())<0}:return_true}var
top_retain=this.options;if(top_retain instanceof
RegExp){this.top_retain=function(def){return
top_retain.test(def.name)}}else if(typeof
top_retain==“function”){this.top_retain=top_retain}else
if(top_retain){if(typeof
top_retain==“string”){top_retain=top_retain.split(/,/)}this.top_retain=function(def){return
top_retain.indexOf(def.name)>=0}}var toplevel=this.options;this.toplevel=typeof
toplevel==“string”?{funcs:/funcs/.test(toplevel),vars:/vars/.test(toplevel)}:{funcs:toplevel,vars:toplevel};var
sequences=this.options;this.sequences_limit=sequences==1?800:sequences|0;this.warnings_produced={}}Compressor.prototype=new
TreeTransformer;merge(Compressor.prototype,{option:function(key){return this.options},exposed:function(def){if(def.export)return
true;if(def.global)for(var i=0,len=def.orig.length;ipass
“: last_count: ”min_count
“, count:
”+count);if(count<min_count){min_count=count;stopping=false}else
if(stopping){break}else{stopping=true}}}if(this.option(“expression”)){node.process_expression(false)}return
node},info:function(){if(this.options.warnings==“verbose”){AST_Node.warn.apply(AST_Node,arguments)}},warn:function(text,props){if(this.options.warnings){var
message=string_template(text,props);if(!(message in
this.warnings_produced)){this.warnings_produced=true;AST_Node.warn.apply(AST_Node,arguments)}}},clear_warnings:function(){this.warnings_produced={}},before:function(node,descend,in_list){if(node._squeezed)return
node;var was_scope=false;if(node instanceof
AST_Scope){node=node.hoist_properties(this);node=node.hoist_declarations(this);was_scope=true}descend(node,this);descend(node,this);var
opt=node.optimize(this);if(was_scope&&opt instanceof
AST_Scope){opt.drop_unused(this);descend(opt,this)}if(opt===node)opt._squeezed=true;return
opt}});(function(){function
OPT(node,optimizer){node.DEFMETHOD(“optimize”,function(compressor){var
self=this;if(self._optimized)return self;if(compressor.has_directive(“use
asm”))return self;var
opt=optimizer(self,compressor);opt._optimized=true;return
opt})}OPT(AST_Node,function(self,compressor){return
self});AST_Node.DEFMETHOD(“equivalent_to”,function(node){return
this.TYPE==node.TYPE&&this.print_to_string()==node.print_to_string()});AST_Scope.DEFMETHOD(“process_expression”,function(insert,compressor){var
self=this;var tt=new TreeTransformer(function(node){if(insert&&node
instanceof AST_SimpleStatement){return
make_node(AST_Return,node,{value:node.body})}if(!insert&&node
instanceof AST_Return){if(compressor){var
value=node.value&&node.value.drop_side_effect_free(compressor,true);return
value?make_node(AST_SimpleStatement,node,{body:value}):make_node(AST_EmptyStatement,node)}return
make_node(AST_SimpleStatement,node,{body:node.value||make_node(AST_UnaryPrefix,node,{operator:“void”,expression:make_node(AST_Number,node,{value:0})})})}if(node
instanceof AST_Class||node instanceof
AST_Lambda&&node!==self){return node}if(node instanceof
AST_Block){var index=node.body.length-1;if(index>=0){node.body=node.body.transform(tt)}}else if(node instanceof
AST_If){node.body=node.body.transform(tt);if(node.alternative){node.alternative=node.alternative.transform(tt)}}else
if(node instanceof AST_With){node.body=node.body.transform(tt)}return
node});self.transform(tt)});(function(def){def(AST_Node,noop);function
reset_def(compressor,def){def.assignments=0;def.chained=false;def.direct_access=false;def.escaped=false;if(def.scope.uses_eval||def.scope.uses_with){def.fixed=false}else
if(def.originstanceof
AST_SymbolConst||!compressor.exposed(def)){def.fixed=def.init}else{def.fixed=false}def.recursive_refs=0;def.references=[];def.should_replace=undefined;def.single_use=undefined}function
reset_variables(tw,compressor,node){node.variables.each(function(def){reset_def(compressor,def);if(def.fixed===null){def.safe_ids=tw.safe_ids;mark(tw,def,true)}else
if(def.fixed){tw.loop_ids=tw.in_loop;mark(tw,def,true)}})}function
reset_block_variables(compressor,node){if(node.block_scope)node.block_scope.variables.each(function(def){reset_def(compressor,def)})}function
push(tw){tw.safe_ids=Object.create(tw.safe_ids)}function
pop(tw){tw.safe_ids=Object.getPrototypeOf(tw.safe_ids)}function
mark(tw,def,safe){tw.safe_ids=safe}function
safe_to_read(tw,def){if(tw.safe_ids){if(def.fixed==null){var orig=def.orig;if(orig instanceof
AST_SymbolFunarg||orig.name==“arguments”)return
false;def.fixed=make_node(AST_Undefined,orig)}return true}return def.fixed
instanceof AST_Defun}function
safe_to_assign(tw,def,value){if(def.fixed===undefined)return
true;if(def.fixed===null&&def.safe_ids){def.safe_ids=false;delete def.safe_ids;return
true}if(!HOP(tw.safe_ids,def.id))return
false;if(!safe_to_read(tw,def))return false;if(def.fixed===false)return
false;if(def.fixed!=null&&(!value||def.references.length>def.assignments))return
false;return all(def.orig,function(sym){return!(sym instanceof
AST_SymbolConst||sym instanceof AST_SymbolDefun||sym instanceof
AST_SymbolLambda)})}function ref_once(tw,compressor,def){return compressor.option(“unused”)&&!def.scope.uses_eval&&!def.scope.uses_with&&def.references.length-def.recursive_refs==1&&tw.loop_ids===tw.in_loop}function
is_immutable(value){if(!value)return false;return
value.is_constant()||value instanceof AST_Lambda||value instanceof
AST_This}function read_property(obj,key){key=get_value(key);if(key
instanceof AST_Node)return;var value;if(obj instanceof AST_Array){var
elements=obj.elements;if(key==“length”)return
make_node_from_constant(elements.length,obj);if(typeof
key==“number”&&key in elements)value=elements}else if(obj instanceof
AST_Object){key=“”+key;var props=obj.properties;for(var
i=props.length;–i>=0;){var prop=props;if(!(prop
instanceof AST_ObjectKeyVal))return;if(!value&&props.key===key)value=props.value}}return value instanceof
AST_SymbolRef&&value.fixed_value()||value}function
is_modified(tw,node,value,level,immutable){var
parent=tw.parent(level);if(is_lhs(node,parent)||!immutable&&parent
instanceof AST_Call&&parent.expression===node&&!(value
instanceof AST_Arrow)&&!(value instanceof
AST_Class)&&(!(value instanceof AST_Function)||!(parent instanceof
AST_New)&&value.contains_this())){return true}else if(parent
instanceof AST_Array){return is_modified(tw,parent,parent,level+1)}else
if(parent instanceof AST_ObjectKeyVal&&node===parent.value){var
obj=tw.parent(level+1);return is_modified(tw,obj,obj,level+2)}else
if(parent instanceof
AST_PropAccess&&parent.expression===node){return!immutable&&is_modified(tw,parent,read_property(value,parent.property),level+1)}}function
mark_escaped(tw,d,scope,node,value,level,depth){var
parent=tw.parent(level);if(value){if(value.is_constant())return;if(value
instanceof AST_ClassExpression)return}if(parent instanceof
AST_Assign&&parent.operator==“=”&&node===parent.right||parent
instanceof AST_Call&&node!==parent.expression||parent instanceof
AST_Exit&&node===parent.value&&node.scope!==d.scope||parent
instanceof AST_VarDef&&node===parent.value||parent instanceof
AST_Yield&&node===parent.value&&node.scope!==d.scope){if(depth>1&&!(value&&value.is_constant_expression(scope)))depth=1;if(!d.escaped||d.escaped>depth)d.escaped=depth;return}else
if(parent instanceof AST_Array||parent instanceof AST_Await||parent
instanceof AST_Binary&&lazy_op(parent.operator)||parent instanceof
AST_Conditional&&node!==parent.condition||parent instanceof
AST_Expansion||parent instanceof
AST_Sequence&&node===parent.tail_node()){mark_escaped(tw,d,scope,parent,parent,level+1,depth)}else
if(parent instanceof AST_ObjectKeyVal&&node===parent.value){var
obj=tw.parent(level+1);mark_escaped(tw,d,scope,obj,obj,level+2,depth)}else
if(parent instanceof
AST_PropAccess&&node===parent.expression){value=read_property(value,parent.property);mark_escaped(tw,d,scope,parent,value,level+1,depth+1);if(value)return}if(level==0)d.direct_access=true}var
suppressor=new TreeWalker(function(node){if(!(node instanceof
AST_Symbol))return;var d=node.definition();if(!d)return;if(node instanceof
AST_SymbolRef)d.references.push(node);d.fixed=false});def(AST_Accessor,function(tw,descend,compressor){push(tw);reset_variables(tw,compressor,this);descend();pop(tw);return
true});def(AST_Arrow,mark_func_expr);def(AST_Assign,function(tw){var
node=this;if(node.left instanceof
AST_Destructuring){node.left.walk(suppressor);return}if(!(node.left
instanceof AST_SymbolRef))return;var d=node.left.definition();var
fixed=d.fixed;if(!fixed&&node.operator!=“=”)return;if(!safe_to_assign(tw,d,node.right))return;d.references.push(node.left);d.assignments++;if(node.operator!=“=”)d.chained=true;d.fixed=node.operator==“=”?function(){return
node.right}:function(){return
make_node(AST_Binary,node,{operator:node.operator.slice(0,-1),left:fixed
instanceof
AST_Node?fixed:fixed(),right:node.right})};mark(tw,d,false);node.right.walk(tw);mark(tw,d,true);return
true});def(AST_Binary,function(tw){if(!lazy_op(this.operator))return;this.left.walk(tw);push(tw);this.right.walk(tw);pop(tw);return
true});def(AST_Block,function(tw,descend,compressor){reset_block_variables(compressor,this)});def(AST_ClassExpression,function(tw,descend){this.inlined=false;push(tw);descend();pop(tw);return
true});def(AST_Conditional,function(tw){this.condition.walk(tw);push(tw);this.consequent.walk(tw);pop(tw);push(tw);this.alternative.walk(tw);pop(tw);return
true});function mark_def_node(tw,descend,compressor){this.inlined=false;var
save_ids=tw.safe_ids;tw.safe_ids=Object.create(null);reset_variables(tw,compressor,this);descend();tw.safe_ids=save_ids;return
true}def(AST_DefClass,mark_def_node);def(AST_Defun,mark_def_node);def(AST_Do,function(tw,descend,compressor){reset_block_variables(compressor,this);var
saved_loop=tw.in_loop;tw.in_loop=this;push(tw);this.body.walk(tw);this.condition.walk(tw);pop(tw);tw.in_loop=saved_loop;return
true});def(AST_For,function(tw,descend,compressor){reset_block_variables(compressor,this);if(this.init)this.init.walk(tw);var
saved_loop=tw.in_loop;tw.in_loop=this;if(this.condition){push(tw);this.condition.walk(tw);pop(tw)}push(tw);this.body.walk(tw);pop(tw);if(this.step){push(tw);this.step.walk(tw);pop(tw)}tw.in_loop=saved_loop;return
true});def(AST_ForIn,function(tw,descend,compressor){reset_block_variables(compressor,this);this.init.walk(suppressor);this.object.walk(tw);var
saved_loop=tw.in_loop;tw.in_loop=this;push(tw);this.body.walk(tw);pop(tw);tw.in_loop=saved_loop;return
true});function mark_func_expr(tw,descend,compressor){var
node=this;node.inlined=false;push(tw);reset_variables(tw,compressor,node);var
iife;if(!node.name&&(iife=tw.parent())instanceof
AST_Call&&iife.expression===node){node.argnames.forEach(function(arg,i){if(!arg.definition)return;var
d=arg.definition();if(!node.uses_arguments&&d.fixed===undefined){d.fixed=function(){return
iife.args||make_node(AST_Undefined,iife)};tw.loop_ids=tw.in_loop;mark(tw,d,true)}else{d.fixed=false}})}descend();pop(tw);return
true}def(AST_Function,mark_func_expr);def(AST_If,function(tw){this.condition.walk(tw);push(tw);this.body.walk(tw);pop(tw);if(this.alternative){push(tw);this.alternative.walk(tw);pop(tw)}return
true});def(AST_LabeledStatement,function(tw){push(tw);this.body.walk(tw);pop(tw);return
true});def(AST_SwitchBranch,function(tw,descend){push(tw);descend();pop(tw);return
true});def(AST_SymbolCatch,function(){this.definition().fixed=false});def(AST_SymbolRef,function(tw,descend,compressor){var
d=this.definition();d.references.push(this);if(d.references.length==1&&!d.fixed&&d.originstanceof
AST_SymbolDefun){tw.loop_ids=tw.in_loop}var
value;if(d.fixed===undefined||!safe_to_read(tw,d)||d.single_use==“m”){d.fixed=false}else
if(d.fixed){value=this.fixed_value();if(value instanceof
AST_Lambda&&recursive_ref(tw,d)){d.recursive_refs++}else
if(value&&!compressor.exposed(d)&&ref_once(tw,compressor,d)){d.single_use=value
instanceof AST_Lambda||value instanceof
AST_Class||d.scope===this.scope&&value.is_constant_expression()}else{d.single_use=false}if(is_modified(tw,this,value,0,is_immutable(value))){if(d.single_use){d.single_use=“m”}else{d.fixed=false}}}mark_escaped(tw,d,this.scope,this,value,0,1)});def(AST_Toplevel,function(tw,descend,compressor){this.globals.each(function(def){reset_def(compressor,def)});reset_variables(tw,compressor,this)});def(AST_Try,function(tw,descend,compressor){reset_block_variables(compressor,this);push(tw);walk_body(this,tw);pop(tw);if(this.bcatch){push(tw);this.bcatch.walk(tw);pop(tw)}if(this.bfinally)this.bfinally.walk(tw);return
true});def(AST_Unary,function(tw,descend){var
node=this;if(node.operator!=“++”&&node.operator!=“–”)return;if(!(node.expression
instanceof AST_SymbolRef))return;var d=node.expression.definition();var
fixed=d.fixed;if(!fixed)return;if(!safe_to_assign(tw,d,true))return;d.references.push(node.expression);d.assignments++;d.chained=true;d.fixed=function(){return
make_node(AST_Binary,node,{operator:node.operator.slice(0,-1),left:make_node(AST_UnaryPrefix,node,{operator:“+”,expression:fixed
instanceof
AST_Node?fixed:fixed()}),right:make_node(AST_Number,node,{value:1})})};mark(tw,d,true);return
true});def(AST_VarDef,function(tw,descend){var node=this;if(node.name
instanceof AST_Destructuring){node.name.walk(suppressor);return}var
d=node.name.definition();if(node.value){if(safe_to_assign(tw,d,node.value)){d.fixed=function(){return
node.value};tw.loop_ids=tw.in_loop;mark(tw,d,false);descend();mark(tw,d,true);return
true}else{d.fixed=false}}});def(AST_While,function(tw,descend,compressor){reset_block_variables(compressor,this);var
saved_loop=tw.in_loop;tw.in_loop=this;push(tw);this.condition.walk(tw);this.body.walk(tw);pop(tw);tw.in_loop=saved_loop;return
true})})(function(node,func){node.DEFMETHOD(“reduce_vars”,func)});AST_Toplevel.DEFMETHOD(“reset_opt_flags”,function(compressor){var
reduce_vars=compressor.option(“reduce_vars”);var tw=new
TreeWalker(function(node,descend){node._squeezed=false;node._optimized=false;if(reduce_vars)return
node.reduce_vars(tw,descend,compressor)});tw.safe_ids=Object.create(null);tw.in_loop=null;tw.loop_ids=Object.create(null);this.walk(tw)});AST_Symbol.DEFMETHOD(“fixed_value”,function(){var
fixed=this.definition().fixed;if(!fixed||fixed instanceof AST_Node)return
fixed;return
fixed()});AST_SymbolRef.DEFMETHOD(“is_immutable”,function(){var
orig=this.definition().orig;return orig.length==1&&originstanceof AST_SymbolLambda});function
is_func_expr(node){return node instanceof AST_Arrow||node instanceof
AST_Function}function is_lhs_read_only(lhs){if(lhs instanceof
AST_This)return true;if(lhs instanceof AST_SymbolRef)return lhs.definition().originstanceof AST_SymbolLambda;if(lhs
instanceof AST_PropAccess){lhs=lhs.expression;if(lhs instanceof
AST_SymbolRef){if(lhs.is_immutable())return
false;lhs=lhs.fixed_value()}if(!lhs)return true;if(lhs instanceof
AST_RegExp)return false;if(lhs instanceof AST_Constant)return true;return
is_lhs_read_only(lhs)}return false}function is_ref_of(ref,type){if(!(ref
instanceof AST_SymbolRef))return false;var
orig=ref.definition().orig;for(var i=orig.length;–i>=0;){if(originstanceof type)return true}}function
find_variable(compressor,name){var
scope,i=0;while(scope=compressor.parent(i++)){if(scope instanceof
AST_Scope)break;if(scope instanceof
AST_Catch){scope=scope.argname.definition().scope;break}}return
scope.find_variable(name)}function
make_node(ctor,orig,props){if(!props)props={};if(orig){if(!props.start)props.start=orig.start;if(!props.end)props.end=orig.end}return
new ctor(props)}function
make_sequence(orig,expressions){if(expressions.length==1)return expressions;return
make_node(AST_Sequence,orig,{expressions:expressions.reduce(merge_sequence,[])})}function
make_node_from_constant(val,orig){switch(typeof val){case“string”:return
make_node(AST_String,orig,{value:val});case“number”:if(isNaN(val))return
make_node(AST_NaN,orig);if(isFinite(val)){return
1/val<0?make_node(AST_UnaryPrefix,orig,{operator:“-”,expression:make_node(AST_Number,orig,{value:-val})}):make_node(AST_Number,orig,{value:val})}return
val<0?make_node(AST_UnaryPrefix,orig,{operator:“-”,expression:make_node(AST_Infinity,orig)}):make_node(AST_Infinity,orig);case“boolean”:return
make_node(val?AST_True:AST_False,orig);case“undefined”:return
make_node(AST_Undefined,orig);default:if(val===null){return
make_node(AST_Null,orig,{value:null})}if(val instanceof RegExp){return
make_node(AST_RegExp,orig,{value:val})}throw new
Error(string_template(“Can't handle constant of type:
{type}”,{type:typeof val}))}}function
maintain_this_binding(parent,orig,val){if(parent instanceof
AST_UnaryPrefix&&parent.operator==“delete”||parent instanceof
AST_Call&&parent.expression===orig&&(val instanceof
AST_PropAccess||val instanceof
AST_SymbolRef&&val.name==“eval”)){return make_sequence(orig,)}return
val}function merge_sequence(array,node){if(node instanceof
AST_Sequence){array.push.apply(array,node.expressions)}else{array.push(node)}return
array}function as_statement_array(thing){if(thing===null)return[];if(thing
instanceof AST_BlockStatement)return thing.body;if(thing instanceof
AST_EmptyStatement)return[];if(thing instanceof AST_Statement)return;throw new Error(“Can't convert
thing to statement array”)}function is_empty(thing){if(thing===null)return
true;if(thing instanceof AST_EmptyStatement)return true;if(thing instanceof
AST_BlockStatement)return thing.body.length==0;return false}function
can_be_evicted_from_block(node){return!(node instanceof AST_DefClass||node
instanceof AST_Defun||node instanceof AST_Let||node instanceof
AST_Const||node instanceof AST_Export||node instanceof AST_Import)}function
loop_body(x){if(x instanceof AST_IterationStatement){return x.body
instanceof AST_BlockStatement?x.body:x}return x}function
is_iife_call(node){if(node.TYPE!=“Call”)return false;return node.expression
instanceof AST_Function||is_iife_call(node.expression)}function
is_undeclared_ref(node){return node instanceof
AST_SymbolRef&&node.definition().undeclared}var
global_names=makePredicate(“Array Boolean clearInterval clearTimeout
console Date decodeURI decodeURIComponent encodeURI encodeURIComponent
Error escape eval EvalError Function isFinite isNaN JSON Math Number
parseFloat parseInt RangeError ReferenceError RegExp Object setInterval
setTimeout String SyntaxError TypeError unescape
URIError”);AST_SymbolRef.DEFMETHOD(“is_declared”,function(compressor){return!this.definition().undeclared||compressor.option(“unsafe”)&&global_names(this.name)});var
identifier_atom=makePredicate(“Infinity NaN undefined”);function
is_identifier_atom(node){return node instanceof AST_Infinity||node
instanceof AST_NaN||node instanceof AST_Undefined}function
tighten_body(statements,compressor){var
scope=compressor.find_parent(AST_Scope).get_defun_scope();var
CHANGED,max_iter=10;do{CHANGED=false;eliminate_spurious_blocks(statements);if(compressor.option(“dead_code”)){eliminate_dead_code(statements,compressor)}if(compressor.option(“if_return”)){handle_if_return(statements,compressor)}if(compressor.sequences_limit>0){sequencesize(statements,compressor);sequencesize_2(statements,compressor)}if(compressor.option(“join_vars”)){join_consecutive_vars(statements)}if(compressor.option(“collapse_vars”)){collapse(statements,compressor)}}while(CHANGED&&max_iter–
>0);function
collapse(statements,compressor){if(scope.uses_eval||scope.uses_with)return
statements;var args;var candidates=[];var
in_try=compressor.self()instanceof AST_Try;var
stat_index=statements.length;var scanner=new
TreeTransformer(function(node,descend){if(abort)return node;if(!hit){if(node!==hit_stack)return
node;hit_index++;if(hit_index<hit_stack.length)return
handle_custom_scan_order(node);hit=true;stop_after=find_stop(node,0);if(stop_after===node)abort=true;return
node}var parent=scanner.parent();if(node instanceof
AST_Assign&&node.operator!=“=”&&lhs.equivalent_to(node.left)||node
instanceof AST_Await||node instanceof AST_Call&&lhs instanceof
AST_PropAccess&&lhs.equivalent_to(node.expression)||node instanceof
AST_Debugger||node instanceof AST_Destructuring||node instanceof
AST_IterationStatement&&!(node instanceof AST_For)||node instanceof
AST_LoopControl||node instanceof AST_Try||node instanceof AST_With||parent
instanceof
AST_For&&node!==parent.init||(side_effects||!replace_all)&&(node
instanceof
AST_SymbolRef&&!node.is_declared(compressor))){abort=true;return
node}if(!stop_if_hit&&(side_effects||!replace_all)&&(parent
instanceof
AST_Binary&&lazy_op(parent.operator)&&parent.left!==node||parent
instanceof AST_Conditional&&parent.condition!==node||parent
instanceof
AST_If&&parent.condition!==node)){stop_if_hit=parent}if(can_replace&&!(node
instanceof
AST_SymbolDeclaration)&&lhs.equivalent_to(node)){if(stop_if_hit){abort=true;return
node}if(is_lhs(node,parent)){if(value_def)replaced++;return
node}CHANGED=abort=true;replaced++;compressor.info(“Collapsing {name}
[{file}:{line},{col}]”,{name:node.print_to_string(),file:node.start.file,line:node.start.line,col:node.start.col});if(candidate
instanceof AST_UnaryPostfix){return
make_node(AST_UnaryPrefix,candidate,candidate)}if(candidate instanceof
AST_VarDef){if(value_def){abort=false;return node}var
def=candidate.name.definition();var
value=candidate.value;if(def.references.length-def.replaced==1&&!compressor.exposed(def)){def.replaced++;if(funarg&&is_identifier_atom(value)){return
value.transform(compressor)}else{return
maintain_this_binding(parent,node,value)}}return
make_node(AST_Assign,candidate,{operator:“=”,left:make_node(AST_SymbolRef,candidate.name,candidate.name),right:value})}candidate.write_only=false;return
candidate}var sym;if(node instanceof AST_Call||node instanceof
AST_Exit&&(side_effects||lhs instanceof
AST_PropAccess||may_modify(lhs))||node instanceof
AST_PropAccess&&(side_effects||node.expression.may_throw_on_access(compressor))||node
instanceof AST_SymbolRef&&(lvalues||side_effects&&may_modify(node))||node
instanceof AST_VarDef&&node.value&&(node.name.name in
lvalues||side_effects&&may_modify(node.name))||(sym=is_lhs(node.left,node))&&(sym
instanceof AST_PropAccess||sym.name in
lvalues)||may_throw&&(in_try?node.has_side_effects(compressor):side_effects_external(node))){stop_after=node;if(node
instanceof AST_Scope)abort=true}return
handle_custom_scan_order(node)},function(node){if(abort)return;if(stop_after===node)abort=true;if(stop_if_hit===node)stop_if_hit=null});var
multi_replacer=new TreeTransformer(function(node){if(abort)return
node;if(!hit){if(node!==hit_stack)return
node;hit_index++;if(hit_index<hit_stack.length)return;hit=true;return
node}if(node instanceof
AST_SymbolRef&&node.name==def.name){if(!–replaced)abort=true;if(is_lhs(node,multi_replacer.parent()))return
node;def.replaced++;value_def.replaced–;return candidate.value}if(node
instanceof AST_Default||node instanceof AST_Scope)return
node});while(–stat_index>=0){if(stat_index==0&&compressor.option(“unused”))extract_args();var
hit_stack=[];extract_candidates(statements);while(candidates.length>0){hit_stack=candidates.pop();var
hit_index=0;var candidate=hit_stack;var
value_def=null;var stop_after=null;var stop_if_hit=null;var
lhs=get_lhs(candidate);if(!lhs||is_lhs_read_only(lhs)||lhs.has_side_effects(compressor))continue;var
lvalues=get_lvalues(candidate);if(lhs instanceof AST_SymbolRef)lvalues=false;var
replace_all=value_def;if(!replace_all&&lhs instanceof
AST_SymbolRef){var
def=lhs.definition();if(def.references.length-def.replaced==(candidate
instanceof AST_VarDef?1:2)){replace_all=true}}var
side_effects=value_has_side_effects(candidate);var
may_throw=candidate.may_throw(compressor);var funarg=candidate.name
instanceof AST_SymbolFunarg;var hit=funarg;var
abort=false,replaced=0,can_replace=!args||!hit;if(!can_replace){for(var
j=compressor.self().argnames.lastIndexOf(candidate.name)+1;!abort&&j<args.length;j++){args.transform(scanner)}can_replace=true}for(var
i=stat_index;!abort&&i<statements.length;i++){statements.transform(scanner)}if(value_def){var
def=candidate.name.definition();if(abort&&def.references.length-def.replaced>replaced)replaced=false;else{abort=false;hit_index=0;hit=funarg;for(var
i=stat_index;!abort&&i<statements.length;i++){statements.transform(multi_replacer)}value_def.single_use=false}}if(replaced&&!remove_candidate(candidate))statements.splice(stat_index,1)}}function
handle_custom_scan_order(node){if(node instanceof AST_Scope)return
node;if(node instanceof
AST_Switch){node.expression=node.expression.transform(scanner);for(var
i=0,len=node.body.length;!abort&&i<len;i++){var branch=node.body;if(branch instanceof AST_Case){if(!hit){if(branch!==hit_stack)continue;hit_index++}branch.expression=branch.expression.transform(scanner);if(side_effects||!replace_all)break}}abort=true;return
node}}function has_overlapping_symbol(fn,arg,fn_strict){var
found=false,scan_this=!(fn instanceof AST_Arrow);arg.walk(new
TreeWalker(function(node,descend){if(found)return true;if(node instanceof
AST_SymbolRef&&fn.variables.has(node.name)){var
s=node.definition().scope;if(s!==scope)while(s=s.parent_scope){if(s===scope)return
true}return found=true}if((fn_strict||scan_this)&&node instanceof
AST_This){return found=true}if(node instanceof AST_Scope&&!(node
instanceof AST_Arrow)){var
prev=scan_this;scan_this=false;descend();scan_this=prev;return
true}}));return found}function extract_args(){var
iife,fn=compressor.self();if(is_func_expr(fn)&&!fn.name&&!fn.uses_arguments&&!fn.uses_eval&&(iife=compressor.parent())instanceof
AST_Call&&iife.expression===fn&&all(iife.args,function(arg){return!(arg
instanceof AST_Expansion)})){var fn_strict=compressor.has_directive(“use
strict”);if(fn_strict&&!member(fn_strict,fn.body))fn_strict=false;var
len=fn.argnames.length;args=iife.args.slice(len);var
names=Object.create(null);for(var i=len;–i>=0;){var sym=fn.argnames;var arg=iife.args;args.unshift(make_node(AST_VarDef,sym,{name:sym,value:arg}));if(sym.name
in names)continue;names=true;if(sym instanceof
AST_Expansion){var
elements=iife.args.slice(i);if(all(elements,function(arg){return!has_overlapping_symbol(fn,arg,fn_strict)})){candidates.unshift()}}else{if(!arg)arg=make_node(AST_Undefined,sym).transform(compressor);else
if(has_overlapping_symbol(fn,arg,fn_strict))arg=null;if(arg)candidates.unshift()}}}}function
extract_candidates(expr){hit_stack.push(expr);if(expr instanceof
AST_Assign){if(!expr.left.has_side_effects(compressor)){candidates.push(hit_stack.slice())}extract_candidates(expr.right)}else
if(expr instanceof
AST_Binary){extract_candidates(expr.left);extract_candidates(expr.right)}else
if(expr instanceof
AST_Call){extract_candidates(expr.expression);expr.args.forEach(extract_candidates)}else
if(expr instanceof AST_Case){extract_candidates(expr.expression)}else
if(expr instanceof
AST_Conditional){extract_candidates(expr.condition);extract_candidates(expr.consequent);extract_candidates(expr.alternative)}else
if(expr instanceof
AST_Definitions&&(compressor.option(“unused”)||!(expr instanceof
AST_Const))){expr.definitions.forEach(extract_candidates)}else if(expr
instanceof AST_DWLoop){extract_candidates(expr.condition);if(!(expr.body
instanceof AST_Block)){extract_candidates(expr.body)}}else if(expr
instanceof AST_Exit){if(expr.value)extract_candidates(expr.value)}else
if(expr instanceof
AST_For){if(expr.init)extract_candidates(expr.init);if(expr.condition)extract_candidates(expr.condition);if(expr.step)extract_candidates(expr.step);if(!(expr.body
instanceof AST_Block)){extract_candidates(expr.body)}}else if(expr
instanceof AST_ForIn){extract_candidates(expr.object);if(!(expr.body
instanceof AST_Block)){extract_candidates(expr.body)}}else if(expr
instanceof AST_If){extract_candidates(expr.condition);if(!(expr.body
instanceof
AST_Block)){extract_candidates(expr.body)}if(expr.alternative&&!(expr.alternative
instanceof AST_Block)){extract_candidates(expr.alternative)}}else if(expr
instanceof AST_Sequence){expr.expressions.forEach(extract_candidates)}else
if(expr instanceof AST_SimpleStatement){extract_candidates(expr.body)}else
if(expr instanceof
AST_Switch){extract_candidates(expr.expression);expr.body.forEach(extract_candidates)}else
if(expr instanceof
AST_Unary){if(expr.operator==“++”||expr.operator==“–”){candidates.push(hit_stack.slice())}}else
if(expr instanceof
AST_VarDef){if(expr.value){candidates.push(hit_stack.slice());extract_candidates(expr.value)}}hit_stack.pop()}function
find_stop(node,level,write_only){var parent=scanner.parent(level);if(parent
instanceof AST_Assign){if(write_only&&!(parent.left instanceof
AST_PropAccess||parent.left.name in lvalues)){return
find_stop(parent,level+1,write_only)}return node}if(parent instanceof
AST_Binary){if(write_only&&(!lazy_op(parent.operator)||parent.left===node)){return
find_stop(parent,level+1,write_only)}return node}if(parent instanceof
AST_Call)return node;if(parent instanceof AST_Case)return node;if(parent
instanceof
AST_Conditional){if(write_only&&parent.condition===node){return
find_stop(parent,level+1,write_only)}return node}if(parent instanceof
AST_Definitions){return find_stop(parent,level+1,true)}if(parent instanceof
AST_Exit){return
write_only?find_stop(parent,level+1,write_only):node}if(parent instanceof
AST_If){if(write_only&&parent.condition===node){return
find_stop(parent,level+1,write_only)}return node}if(parent instanceof
AST_IterationStatement)return node;if(parent instanceof
AST_Sequence){return
find_stop(parent,level+1,parent.tail_node()!==node)}if(parent instanceof
AST_SimpleStatement){return find_stop(parent,level+1,true)}if(parent
instanceof AST_Switch)return node;if(parent instanceof AST_VarDef)return
node;return null}function mangleable_var(var_def){var
value=var_def.value;if(!(value instanceof
AST_SymbolRef))return;if(value.name==“arguments”)return;var
def=value.definition();if(def.undeclared)return;return
value_def=def}function get_lhs(expr){if(expr instanceof
AST_VarDef&&expr.name instanceof AST_SymbolDeclaration){var
def=expr.name.definition();if(!member(expr.name,def.orig))return;var
declared=def.orig.length-def.eliminated;var
referenced=def.references.length-def.replaced;if(declared>1&&!(expr.name
instanceof
AST_SymbolFunarg)||(referenced>1?mangleable_var(expr):!compressor.exposed(def))){return
make_node(AST_SymbolRef,expr.name,expr.name)}}else{var lhs=expr[expr
instanceof
AST_Assign?“left”:“expression”];return!is_ref_of(lhs,AST_SymbolConst)&&lhs}}function
get_rvalue(expr){return expr[expr instanceof
AST_Assign?“right”:“value”]}function get_lvalues(expr){var
lvalues=Object.create(null);if(expr instanceof AST_Unary)return lvalues;var
tw=new TreeWalker(function(node,descend){var sym=node;while(sym instanceof
AST_PropAccess)sym=sym.expression;if(sym instanceof AST_SymbolRef||sym
instanceof AST_This){lvalues=lvalues||is_lhs(node,tw.parent())}});get_rvalue(expr).walk(tw);return
lvalues}function remove_candidate(expr){if(expr.name instanceof
AST_SymbolFunarg){var
iife=compressor.parent(),argnames=compressor.self().argnames;var
index=argnames.indexOf(expr.name);if(index<0){iife.args.length=Math.min(iife.args.length,argnames.length-1)}else{var
args=iife.args;if(args)args=make_node(AST_Number,args,{value:0})}return true}var
found=false;return statements.transform(new
TreeTransformer(function(node,descend,in_list){if(found)return
node;if(node===expr||node.body===expr){found=true;if(node instanceof
AST_VarDef){node.value=null;return node}return
in_list?MAP.skip:null}},function(node){if(node instanceof
AST_Sequence)switch(node.expressions.length){case 0:return null;case
1:return node.expressions}}))}function
value_has_side_effects(expr){if(expr instanceof AST_Unary)return
false;return get_rvalue(expr).has_side_effects(compressor)}function
may_modify(sym){var def=sym.definition();if(def.orig.length==1&&def.originstanceof
AST_SymbolDefun)return false;if(def.scope.get_defun_scope()!==scope)return
true;return!all(def.references,function(ref){return
ref.scope.get_defun_scope()===scope})}function
side_effects_external(node,lhs){if(node instanceof AST_Assign)return
side_effects_external(node.left,true);if(node instanceof AST_Unary)return
side_effects_external(node.expression,true);if(node instanceof
AST_VarDef)return
node.value&&side_effects_external(node.value);if(lhs){if(node
instanceof AST_Dot)return
side_effects_external(node.expression,true);if(node instanceof
AST_Sub)return side_effects_external(node.expression,true);if(node
instanceof AST_SymbolRef)return node.definition().scope!==scope}return
false}}function eliminate_spurious_blocks(statements){var
seen_dirs=[];for(var i=0;i<statements.length;){var stat=statements;if(stat instanceof
AST_BlockStatement&&all(stat.body,can_be_evicted_from_block)){CHANGED=true;eliminate_spurious_blocks(stat.body);[].splice.apply(statements,.concat(stat.body));i+=stat.body.length}else
if(stat instanceof
AST_EmptyStatement){CHANGED=true;statements.splice(i,1)}else if(stat
instanceof
AST_Directive){if(seen_dirs.indexOf(stat.value)<0){i++;seen_dirs.push(stat.value)}else{CHANGED=true;statements.splice(i,1)}}else
i++}}function handle_if_return(statements,compressor){var
self=compressor.self();var
multiple_if_returns=has_multiple_if_returns(statements);var in_lambda=self
instanceof AST_Lambda;for(var i=statements.length;–i>=0;){var stat=statements;var j=next_index(i);var next=statements;if(in_lambda&&!next&&stat
instanceof
AST_Return){if(!stat.value){CHANGED=true;statements.splice(i,1);continue}if(stat.value
instanceof AST_UnaryPrefix&&stat.value.operator==“void”){CHANGED=true;statements=make_node(AST_SimpleStatement,stat,{body:stat.value.expression});continue}}if(stat
instanceof AST_If){var
ab=aborts(stat.body);if(can_merge_flow(ab)){if(ab.label){remove(ab.label.thedef.references,ab)}CHANGED=true;stat=stat.clone();stat.condition=stat.condition.negate(compressor);var
body=as_statement_array_with_return(stat.body,ab);stat.body=make_node(AST_BlockStatement,stat,{body:as_statement_array(stat.alternative).concat(extract_functions())});stat.alternative=make_node(AST_BlockStatement,stat,{body:body});statements=stat.transform(compressor);continue}var
ab=aborts(stat.alternative);if(can_merge_flow(ab)){if(ab.label){remove(ab.label.thedef.references,ab)}CHANGED=true;stat=stat.clone();stat.body=make_node(AST_BlockStatement,stat.body,{body:as_statement_array(stat.body).concat(extract_functions())});var
body=as_statement_array_with_return(stat.alternative,ab);stat.alternative=make_node(AST_BlockStatement,stat.alternative,{body:body});statements=stat.transform(compressor);continue}}if(stat
instanceof AST_If&&stat.body instanceof AST_Return){var
value=stat.body.value;if(!value&&!stat.alternative&&(in_lambda&&!next||next
instanceof AST_Return&&!next.value)){CHANGED=true;statements=make_node(AST_SimpleStatement,stat.condition,{body:stat.condition});continue}if(value&&!stat.alternative&&next
instanceof
AST_Return&&next.value){CHANGED=true;stat=stat.clone();stat.alternative=next;statements.splice(i,1,stat.transform(compressor));statements.splice(j,1);continue}if(value&&!stat.alternative&&(!next&&in_lambda&&multiple_if_returns||next
instanceof
AST_Return)){CHANGED=true;stat=stat.clone();stat.alternative=next||make_node(AST_Return,stat,{value:null});statements.splice(i,1,stat.transform(compressor));if(next)statements.splice(j,1);continue}var
prev=statements;if(compressor.option(“sequences”)&&in_lambda&&!stat.alternative&&prev
instanceof AST_If&&prev.body instanceof
AST_Return&&next_index(j)==statements.length&&next
instanceof
AST_SimpleStatement){CHANGED=true;stat=stat.clone();stat.alternative=make_node(AST_BlockStatement,next,{body:});statements.splice(i,1,stat.transform(compressor));statements.splice(j,1);continue}}}function
has_multiple_if_returns(statements){var n=0;for(var
i=statements.length;–i>=0;){var stat=statements;if(stat
instanceof AST_If&&stat.body instanceof
AST_Return){if(++n>1)return true}}return false}function
is_return_void(value){return!value||value instanceof
AST_UnaryPrefix&&value.operator==“void”}function
can_merge_flow(ab){if(!ab)return false;for(var
j=i+1,len=statements.length;j<len;j++){var stat=statements;if(stat instanceof AST_Const||stat instanceof
AST_Let)return false}var lct=ab instanceof
AST_LoopControl?compressor.loopcontrol_target(ab):null;return ab instanceof
AST_Return&&in_lambda&&is_return_void(ab.value)||ab
instanceof AST_Continue&&self===loop_body(lct)||ab instanceof
AST_Break&&lct instanceof
AST_BlockStatement&&self===lct}function extract_functions(){var
tail=statements.slice(i+1);statements.length=i+1;return
tail.filter(function(stat){if(stat instanceof
AST_Defun){statements.push(stat);return false}return true})}function
as_statement_array_with_return(node,ab){var
body=as_statement_array(node).slice(0,-1);if(ab.value){body.push(make_node(AST_SimpleStatement,ab.value,{body:ab.value.expression}))}return
body}function next_index(i){for(var
j=i+1,len=statements.length;j<len;j++){var stat=statements;if(!(stat instanceof
AST_Var&&declarations_only(stat))){break}}return j}function
prev_index(i){for(var j=i;–j>=0;){var stat=statements;if(!(stat instanceof
AST_Var&&declarations_only(stat))){break}}return j}}function
eliminate_dead_code(statements,compressor){var has_quit;var
self=compressor.self();for(var
i=0,n=0,len=statements.length;i<len;i++){var stat=statements;if(stat instanceof AST_LoopControl){var
lct=compressor.loopcontrol_target(stat);if(stat instanceof
AST_Break&&!(lct instanceof
AST_IterationStatement)&&loop_body(lct)===self||stat instanceof
AST_Continue&&loop_body(lct)===self){if(stat.label){remove(stat.label.thedef.references,stat)}}else{statements=stat}}else{statements=stat}if(aborts(stat)){has_quit=statements.slice(i+1);break}}statements.length=n;CHANGED=n!=len;if(has_quit)has_quit.forEach(function(stat){extract_declarations_from_unreachable_code(compressor,stat,statements)})}function
declarations_only(node){return
all(node.definitions,function(var_def){return!var_def.value})}function
sequencesize(statements,compressor){if(statements.length<2)return;var
seq=[],n=0;function push_seq(){if(!seq.length)return;var body=make_sequence(seq,seq);statements=make_node(AST_SimpleStatement,body,{body:body});seq=[]}for(var
i=0,len=statements.length;i<len;i++){var stat=statements;if(stat instanceof
AST_SimpleStatement){if(seq.length>=compressor.sequences_limit)push_seq();var
body=stat.body;if(seq.length>0)body=body.drop_side_effect_free(compressor);if(body)merge_sequence(seq,body)}else
if(stat instanceof AST_Definitions&&declarations_only(stat)||stat
instanceof AST_Defun){statements=stat}else{push_seq();statements=stat}}push_seq();statements.length=n;if(n!=len)CHANGED=true}function
to_simple_statement(block,decls){if(!(block instanceof
AST_BlockStatement))return block;var stat=null;for(var
i=0,len=block.body.length;i<len;i++){var line=block.body;if(line instanceof
AST_Var&&declarations_only(line)){decls.push(line)}else
if(stat){return false}else{stat=line}}return stat}function
sequencesize_2(statements,compressor){function
cons_seq(right){n–;CHANGED=true;var left=prev.body;return make_sequence(left,).transform(compressor)}var
n=0,prev;for(var i=0;i<statements.length;i++){var stat=statements;if(prev){if(stat instanceof
AST_Exit){stat.value=cons_seq(stat.value||make_node(AST_Undefined,stat).transform(compressor))}else
if(stat instanceof AST_For){if(!(stat.init instanceof AST_Definitions)){var
abort=false;prev.body.walk(new TreeWalker(function(node){if(abort||node
instanceof AST_Scope)return true;if(node instanceof
AST_Binary&&node.operator==“in”){abort=true;return
true}}));if(!abort){if(stat.init)stat.init=cons_seq(stat.init);else{stat.init=prev.body;n–;CHANGED=true}}}}else
if(stat instanceof AST_ForIn){if(!(stat.init instanceof
AST_Const)&&!(stat.init instanceof
AST_Let)){stat.object=cons_seq(stat.object)}}else if(stat instanceof
AST_If){stat.condition=cons_seq(stat.condition)}else if(stat instanceof
AST_Switch){stat.expression=cons_seq(stat.expression)}else if(stat
instanceof
AST_With){stat.expression=cons_seq(stat.expression)}}if(compressor.option(“conditionals”)&&stat
instanceof AST_If){var decls=[];var
body=to_simple_statement(stat.body,decls);var
alt=to_simple_statement(stat.alternative,decls);if(body!==false&&alt!==false&&decls.length>0){var
len=decls.length;decls.push(make_node(AST_If,stat,{condition:stat.condition,body:body||make_node(AST_EmptyStatement,stat.body),alternative:alt}));decls.unshift(n,1);[].splice.apply(statements,decls);i+=len;n+=len+1;prev=null;CHANGED=true;continue}}statements=stat;prev=stat
instanceof AST_SimpleStatement?stat:null}statements.length=n}function
join_object_assignments(defn,body){if(!(defn instanceof
AST_Definitions))return;var def=defn.definitions;if(!(def.value
instanceof AST_Object))return;var exprs;if(body instanceof AST_Assign){exprs=}else if(body instanceof
AST_Sequence){exprs=body.expressions.slice()}if(!exprs)return;var
trimmed=false;do{var node=exprs;if(!(node instanceof
AST_Assign))break;if(node.operator!=“=”)break;if(!(node.left instanceof
AST_PropAccess))break;var sym=node.left.expression;if(!(sym instanceof
AST_SymbolRef))break;if(def.name.name!=sym.name)break;if(!node.right.is_constant_expression(scope))break;var
prop=node.left.property;if(prop instanceof
AST_Node){prop=prop.evaluate(compressor)}if(prop instanceof
AST_Node)break;prop=“”+prop;if(compressor.option(“ecma”)<6&&compressor.has_directive(“use
strict”)){if(!all(def.value.properties,function(node){return
node.key!=prop&&node.key.name!=prop}))break}def.value.properties.push(make_node(AST_ObjectKeyVal,node,{key:prop,value:node.right}));exprs.shift();trimmed=true}while(exprs.length);return
trimmed&&exprs}function join_consecutive_vars(statements){var
defs;for(var i=0,j=-1,len=statements.length;i<len;i++){var stat=statements;var prev=statements;if(stat
instanceof
AST_Definitions){if(prev&&prev.TYPE==stat.TYPE){prev.definitions=prev.definitions.concat(stat.definitions);CHANGED=true}else
if(defs&&defs.TYPE==stat.TYPE&&declarations_only(stat)){defs.definitions=defs.definitions.concat(stat.definitions);CHANGED=true}else{statements=stat;defs=stat}}else if(stat instanceof
AST_Exit){stat.value=extract_object_assignments(stat.value)}else if(stat
instanceof AST_For){var
exprs=join_object_assignments(prev,stat.init);if(exprs){CHANGED=true;stat.init=exprs.length?make_sequence(stat.init,exprs):null;statements=stat}else
if(prev instanceof
AST_Var&&(!stat.init||stat.init.TYPE==prev.TYPE)){if(stat.init){prev.definitions=prev.definitions.concat(stat.init.definitions)}stat.init=prev;statements=stat;CHANGED=true}else
if(defs&&stat.init&&defs.TYPE==stat.init.TYPE&&declarations_only(stat.init)){defs.definitions=defs.definitions.concat(stat.init.definitions);stat.init=null;statements=stat;CHANGED=true}else{statements=stat}}else if(stat instanceof
AST_ForIn){stat.object=extract_object_assignments(stat.object)}else if(stat
instanceof
AST_If){stat.condition=extract_object_assignments(stat.condition)}else
if(stat instanceof AST_SimpleStatement){var
exprs=join_object_assignments(prev,stat.body);if(exprs){CHANGED=true;if(!exprs.length)continue;stat.body=make_sequence(stat.body,exprs)}statements=stat}else if(stat instanceof
AST_Switch){stat.expression=extract_object_assignments(stat.expression)}else
if(stat instanceof
AST_With){stat.expression=extract_object_assignments(stat.expression)}else{statements=stat}}statements.length=j+1;function
extract_object_assignments(value){statements=stat;var
exprs=join_object_assignments(prev,value);if(exprs){CHANGED=true;if(exprs.length){return
make_sequence(value,exprs)}else if(value instanceof AST_Sequence){return
value.tail_node().left}else{return value.left}}return value}}}function
extract_declarations_from_unreachable_code(compressor,stat,target){if(!(stat
instanceof AST_Defun)){compressor.warn(“Dropping unreachable code
[{file}:{line},{col}]”,stat.start)}stat.walk(new
TreeWalker(function(node){if(node instanceof
AST_Var){compressor.warn(“Declarations in unreachable code!
[{file}:{line},{col}]”,node.start);node.remove_initializers();target.push(node);return
true}if(node instanceof
AST_Defun&&(node===stat||!compressor.has_directive(“use
strict”))){target.push(node===stat?node:make_node(AST_Var,node,{definitions:}));return
true}if(node instanceof AST_Scope){return true}}))}function
get_value(key){if(key instanceof AST_Constant){return key.getValue()}if(key
instanceof
AST_UnaryPrefix&&key.operator==“void”&&key.expression
instanceof AST_Constant){return}return key}function
is_undefined(node,compressor){return node.is_undefined||node instanceof
AST_Undefined||node instanceof
AST_UnaryPrefix&&node.operator==“void”&&!node.expression.has_side_effects(compressor)}(function(def){AST_Node.DEFMETHOD(“may_throw_on_access”,function(compressor){return!compressor.option(“pure_getters”)||this._dot_throw(compressor)});function
is_strict(compressor){return/strict/.test(compressor.option(“pure_getters”))}def(AST_Node,is_strict);def(AST_Null,return_true);def(AST_Undefined,return_true);def(AST_Constant,return_false);def(AST_Array,return_false);def(AST_Object,function(compressor){if(!is_strict(compressor))return
false;for(var i=this.properties.length;–i>=0;)if(this.properties._dot_throw(compressor))return
true;return
false});def(AST_ObjectProperty,return_false);def(AST_ObjectGetter,return_true);def(AST_Expansion,function(compressor){return
this.expression._dot_throw(compressor)});def(AST_Function,return_false);def(AST_Arrow,return_false);def(AST_UnaryPostfix,return_false);def(AST_UnaryPrefix,function(){return
this.operator==“void”});def(AST_Binary,function(compressor){return(this.operator==“&&”||this.operator==“||”)&&(this.left._dot_throw(compressor)||this.right._dot_throw(compressor))});def(AST_Assign,function(compressor){return
this.operator==“=”&&this.right._dot_throw(compressor)});def(AST_Conditional,function(compressor){return
this.consequent._dot_throw(compressor)||this.alternative._dot_throw(compressor)});def(AST_Dot,function(compressor){if(!is_strict(compressor))return
false;if(this.expression instanceof
AST_Function&&this.property==“prototype”)return false;return
true});def(AST_Sequence,function(compressor){return
this.tail_node()._dot_throw(compressor)});def(AST_SymbolRef,function(compressor){if(this.is_undefined)return
true;if(!is_strict(compressor))return
false;if(is_undeclared_ref(this)&&this.is_declared(compressor))return
false;if(this.is_immutable())return false;var
fixed=this.fixed_value();return!fixed||fixed._dot_throw(compressor)})})(function(node,func){node.DEFMETHOD(“_dot_throw”,func)});(function(def){var
unary_bool=;var =“,”>“”>binary_bool=;def(AST_Node,return_false);def(AST_UnaryPrefix,function(){return
member(this.operator,unary_bool)});def(AST_Binary,function(){return
member(this.operator,binary_bool)||lazy_op(this.operator)&&this.left.is_boolean()&&this.right.is_boolean()});def(AST_Conditional,function(){return
this.consequent.is_boolean()&&this.alternative.is_boolean()});def(AST_Assign,function(){return
this.operator==“=”&&this.right.is_boolean()});def(AST_Sequence,function(){return
this.tail_node().is_boolean()});def(AST_True,return_true);def(AST_False,return_true)})(function(node,func){node.DEFMETHOD(“is_boolean”,func)});(function(def){def(AST_Node,return_false);def(AST_Number,return_true);var
unary=makePredicate(“+ - ~ ++ –”);def(AST_Unary,function(){return
unary(this.operator)});var binary=makePredicate(“- * / % & | ^ <<
>> >>>”);def(AST_Binary,function(compressor){return
binary(this.operator)||this.operator==“+”&&this.left.is_number(compressor)&&this.right.is_number(compressor)});def(AST_Assign,function(compressor){return
binary(this.operator.slice(0,-1))||this.operator==“=”&&this.right.is_number(compressor)});def(AST_Sequence,function(compressor){return
this.tail_node().is_number(compressor)});def(AST_Conditional,function(compressor){return
this.consequent.is_number(compressor)&&this.alternative.is_number(compressor)})})(function(node,func){node.DEFMETHOD(“is_number”,func)});(function(def){def(AST_Node,return_false);def(AST_String,return_true);def(AST_TemplateString,function(){return
this.segments.length===1});def(AST_UnaryPrefix,function(){return
this.operator==“typeof”});def(AST_Binary,function(compressor){return
this.operator==“+”&&(this.left.is_string(compressor)||this.right.is_string(compressor))});def(AST_Assign,function(compressor){return(this.operator==“=”||this.operator==“+=”)&&this.right.is_string(compressor)});def(AST_Sequence,function(compressor){return
this.tail_node().is_string(compressor)});def(AST_Conditional,function(compressor){return
this.consequent.is_string(compressor)&&this.alternative.is_string(compressor)})})(function(node,func){node.DEFMETHOD(“is_string”,func)});var
lazy_op=makePredicate(“&& ||”);var
unary_side_effects=makePredicate(“delete ++ –”);function
is_lhs(node,parent){if(parent instanceof
AST_Unary&&unary_side_effects(parent.operator))return
parent.expression;if(parent instanceof
AST_Assign&&parent.left===node)return
node}(function(def){AST_Node.DEFMETHOD(“resolve_defines”,function(compressor){if(!compressor.option(“global_defs”))return;var
def=this._find_defs(compressor,“”);if(def){var
node,parent=this,level=0;do{node=parent;parent=compressor.parent(level++)}while(parent
instanceof
AST_PropAccess&&parent.expression===node);if(is_lhs(node,parent)){compressor.warn(“global_defs
”+this.print_to_string()+“ redefined
[{file}:{line},{col}]”,this.start)}else{return def}}});function
to_node(value,orig){if(value instanceof AST_Node)return
make_node(value.CTOR,orig,value);if(Array.isArray(value))return
make_node(AST_Array,orig,{elements:value.map(function(value){return
to_node(value,orig)})});if(value&&typeof value==“object”){var
props=[];for(var key in
value)if(HOP(value,key)){props.push(make_node(AST_ObjectKeyVal,orig,{key:key,value:to_node(value,orig)}))}return
make_node(AST_Object,orig,{properties:props})}return
make_node_from_constant(value,orig)}def(AST_Node,noop);def(AST_Dot,function(compressor,suffix){return
this.expression._find_defs(compressor,“.”+this.property+suffix)});def(AST_SymbolRef,function(compressor,suffix){if(!this.global())return;var
name;var
defines=compressor.option(“global_defs”);if(defines&&HOP(defines,name=this.name+suffix)){var
node=to_node(defines,this);var
top=compressor.find_parent(AST_Toplevel);node.walk(new
TreeWalker(function(node){if(node instanceof
AST_SymbolRef){node.scope=top;node.thedef=top.def_global(node)}}));return
node}})})(function(node,func){node.DEFMETHOD(“_find_defs”,func)});function
best_of_expression(ast1,ast2){return
ast1.print_to_string().length>ast2.print_to_string().length?ast2:ast1}function
best_of_statement(ast1,ast2){return
best_of_expression(make_node(AST_SimpleStatement,ast1,{body:ast1}),make_node(AST_SimpleStatement,ast2,{body:ast2})).body}function
best_of(compressor,ast1,ast2){return(first_in_statement(compressor)?best_of_statement:best_of_expression)(ast1,ast2)}function
convert_to_predicate(obj){for(var key in obj){obj=makePredicate(obj)}}var object_fns=;var
native_fns={Array:.concat(object_fns),Boolean:object_fns,Number:.concat(object_fns),Object:object_fns,RegExp:.concat(object_fns),String:.concat(object_fns)};convert_to_predicate(native_fns);var
static_fns={Array:,Math:,Number:,Object:,String:};convert_to_predicate(static_fns);(function(def){AST_Node.DEFMETHOD(“evaluate”,function(compressor){if(!compressor.option(“evaluate”))return
this;var val=this._eval(compressor,1);return!val||val instanceof
RegExp||typeof val!=“object”?val:this});var unaryPrefix=makePredicate(“! ~
- + void”);AST_Node.DEFMETHOD(“is_constant”,function(){if(this instanceof
AST_Constant){return!(this instanceof AST_RegExp)}else{return this
instanceof AST_UnaryPrefix&&this.expression instanceof
AST_Constant&&unaryPrefix(this.operator)}});def(AST_Statement,function(){throw
new Error(string_template(“Cannot evaluate a statement
[{file}:{line},{col}]”,this.start))});def(AST_Lambda,return_this);def(AST_Class,return_this);def(AST_Node,return_this);def(AST_Constant,function(){return
this.getValue()});def(AST_TemplateString,function(){if(this.segments.length!==1)return
this;return this.segments.value});def(AST_Array,function(compressor,depth){if(compressor.option(“unsafe”)){var
elements=[];for(var i=0,len=this.elements.length;i<len;i++){var element=this.elements;if(element instanceof
AST_Function){elements.push(element);continue}var
value=element._eval(compressor,depth);if(element===value)return
this;elements.push(value)}return elements}return
this});def(AST_Object,function(compressor,depth){if(compressor.option(“unsafe”)){var
val={};for(var i=0,len=this.properties.length;i<len;i++){var prop=this.properties;if(prop instanceof AST_Expansion)return
this;var key=prop.key;if(key instanceof AST_Symbol){key=key.name}else
if(key instanceof
AST_Node){key=key._eval(compressor,depth);if(key===prop.key)return
this}if(typeof Object.prototype===“function”){return
this}if(prop.value instanceof AST_Function)continue;val=prop.value._eval(compressor,depth);if(val===prop.value)return
this}return val}return
this});def(AST_UnaryPrefix,function(compressor,depth){var
e=this.expression;if(compressor.option(“typeofs”)&&this.operator==“typeof”&&(e
instanceof AST_Lambda||e instanceof
AST_SymbolRef&&e.fixed_value()instanceof AST_Lambda)){return typeof
function(){}}e=e._eval(compressor,depth);if(e===this.expression)return
this;switch(this.operator){case“!”:return!e;case“typeof”:if(e instanceof
RegExp)return this;return typeof e;case“void”:return void
e;case“~”:return~e;case“-”:return-e;case“+”:return+e}return
this});def(AST_Binary,function(compressor,depth){var
left=this.left._eval(compressor,depth);if(left===this.left)return this;var
right=this.right._eval(compressor,depth);if(right===this.right)return
this;var
result;switch(this.operator){case“&&”:result=left&&right;break;case“||”:result=left||right;break;case“|”:result=left|right;break;case“&”:result=left&right;break;case“^”:result=left^right;break;case“+”:result=left+right;break;case“*”:result=left*right;break;case“**”:result=Math.pow(left,right);break;case“/”:result=left/right;break;case“%”:result=left%right;break;case“-”:result=left-right;break;case“<<”:result=left<<right;break;case“>>”:result=left>>right;break;case“>>>”:result=left>>>right;break;case“==”:result=left==right;break;case“===”:result=left===right;break;case“!=”:result=left!=right;break;case“!==”:result=left!==right;break;case“<”:result=left<right;break;case“<=”:result=left<=right;break;case“>”:result=left>right;break;case“>=”:result=left>=right;break;default:return
this}if(isNaN(result)&&compressor.find_parent(AST_With)){return
this}return result});def(AST_Conditional,function(compressor,depth){var
condition=this.condition._eval(compressor,depth);if(condition===this.condition)return
this;var node=condition?this.consequent:this.alternative;var
value=node._eval(compressor,depth);return
value===node?this:value});def(AST_SymbolRef,function(compressor,depth){var
fixed=this.fixed_value();if(!fixed)return this;var
value;if(HOP(fixed,“_eval”)){value=fixed._eval()}else{this._eval=return_this;value=fixed._eval(compressor,depth);delete
this._eval;if(value===fixed)return this;fixed._eval=function(){return
value}}if(value&&typeof value==“object”){var
escaped=this.definition().escaped;if(escaped&&depth>escaped)return
this}return value});var
global_objs={Array:Array,Math:Math,Number:Number,Object:Object,String:String};var
static_values={Math:,Number:};convert_to_predicate(static_values);def(AST_PropAccess,function(compressor,depth){if(compressor.option(“unsafe”)){var
key=this.property;if(key instanceof
AST_Node){key=key._eval(compressor,depth);if(key===this.property)return
this}var exp=this.expression;var val;if(is_undeclared_ref(exp)){if(!(static_values||return_false)(key))return this;val=global_objs}else{val=exp._eval(compressor,depth+1);if(!val||val===exp||!HOP(val,key))return
this}return val}return
this});def(AST_Call,function(compressor,depth){var
exp=this.expression;if(compressor.option(“unsafe”)&&exp instanceof
AST_PropAccess){var key=exp.property;if(key instanceof
AST_Node){key=key._eval(compressor,depth);if(key===exp.property)return
this}var val;var e=exp.expression;if(is_undeclared_ref(e)){if(!(static_fns||return_false)(key))return this;val=global_objs}else{val=e._eval(compressor,depth+1);if(val===e||!(val&&native_fns||return_false)(key))return
this}var args=[];for(var i=0,len=this.args.length;i<len;i++){var arg=this.args;var
value=arg._eval(compressor,depth);if(arg===value)return
this;args.push(value)}try{return val.apply(val,args)}catch(ex){compressor.warn(“Error
evaluating {code}
[{file}:{line},{col}]”,{code:this.print_to_string(),file:this.start.file,line:this.start.line,col:this.start.col})}}return
this});def(AST_New,return_this)})(function(node,func){node.DEFMETHOD(“_eval”,func)});(function(def){function
basic_negation(exp){return
make_node(AST_UnaryPrefix,exp,{operator:“!”,expression:exp})}function
best(orig,alt,first_in_statement){var
negated=basic_negation(orig);if(first_in_statement){var
stat=make_node(AST_SimpleStatement,alt,{body:alt});return
best_of_expression(negated,stat)===stat?alt:negated}return
best_of_expression(negated,alt)}def(AST_Node,function(){return
basic_negation(this)});def(AST_Statement,function(){throw new Error(“Cannot
negate a statement”)});def(AST_Function,function(){return
basic_negation(this)});def(AST_Arrow,function(){return
basic_negation(this)});def(AST_UnaryPrefix,function(){if(this.operator==“!”)return
this.expression;return
basic_negation(this)});def(AST_Sequence,function(compressor){var
expressions=this.expressions.slice();expressions.push(expressions.pop().negate(compressor));return
make_sequence(this,expressions)});def(AST_Conditional,function(compressor,first_in_statement){var
self=this.clone();self.consequent=self.consequent.negate(compressor);self.alternative=self.alternative.negate(compressor);return
best(this,self,first_in_statement)});def(AST_Binary,function(compressor,first_in_statement){var
self=this.clone(),op=this.operator;if(compressor.option(“unsafe_comps”)){switch(op){case“<=”:self.operator=“>”;return
self;case“<”:self.operator=“>=”;return
self;case“>=”:self.operator=“<”;return
self;case“>”:self.operator=“<=”;return
self}}switch(op){case“==”:self.operator=“!=”;return
self;case“!=”:self.operator=“==”;return
self;case“===”:self.operator=“!==”;return
self;case“!==”:self.operator=“===”;return
self;case“&&”:self.operator=“||”;self.left=self.left.negate(compressor,first_in_statement);self.right=self.right.negate(compressor);return
best(this,self,first_in_statement);case“||”:self.operator=“&&”;self.left=self.left.negate(compressor,first_in_statement);self.right=self.right.negate(compressor);return
best(this,self,first_in_statement)}return
basic_negation(this)})})(function(node,func){node.DEFMETHOD(“negate”,function(compressor,first_in_statement){return
func.call(this,compressor,first_in_statement)})});var
global_pure_fns=makePredicate(“Boolean decodeURI decodeURIComponent Date
encodeURI encodeURIComponent Error escape EvalError isFinite isNaN Number
Object parseFloat parseInt RangeError ReferenceError String SyntaxError
TypeError unescape
URIError”);AST_Call.DEFMETHOD(“is_expr_pure”,function(compressor){if(compressor.option(“unsafe”)){var
expr=this.expression;if(is_undeclared_ref(expr)&&global_pure_fns(expr.name))return
true;if(expr instanceof AST_Dot&&is_undeclared_ref(expr.expression)&&(static_fns||return_false)(expr.property)){return
true}}return
this.pure||!compressor.pure_funcs(this)});AST_Node.DEFMETHOD(“is_call_pure”,return_false);AST_Dot.DEFMETHOD(“is_call_pure”,function(compressor){if(!compressor.option(“unsafe”))return;var
expr=this.expression;var fns=return_false;if(expr instanceof
AST_Array){fns=native_fns.Array}else
if(expr.is_boolean()){fns=native_fns.Boolean}else
if(expr.is_number(compressor)){fns=native_fns.Number}else if(expr
instanceof AST_RegExp){fns=native_fns.RegExp}else
if(expr.is_string(compressor)){fns=native_fns.String}else
if(!this.may_throw_on_access(compressor)){fns=native_fns.Object}return
fns(this.property)});(function(def){def(AST_Node,return_true);def(AST_EmptyStatement,return_false);def(AST_Constant,return_false);def(AST_This,return_false);function
any(list,compressor){for(var i=list.length;–i>=0;)if(list.has_side_effects(compressor))return
true;return false}def(AST_Block,function(compressor){return
any(this.body,compressor)});def(AST_Call,function(compressor){if(!this.is_expr_pure(compressor)&&(!this.expression.is_call_pure(compressor)||this.expression.has_side_effects(compressor))){return
true}return
any(this.args,compressor)});def(AST_Switch,function(compressor){return
this.expression.has_side_effects(compressor)||any(this.body,compressor)});def(AST_Case,function(compressor){return
this.expression.has_side_effects(compressor)||any(this.body,compressor)});def(AST_Try,function(compressor){return
any(this.body,compressor)||this.bcatch&&this.bcatch.has_side_effects(compressor)||this.bfinally&&this.bfinally.has_side_effects(compressor)});def(AST_If,function(compressor){return
this.condition.has_side_effects(compressor)||this.body&&this.body.has_side_effects(compressor)||this.alternative&&this.alternative.has_side_effects(compressor)});def(AST_LabeledStatement,function(compressor){return
this.body.has_side_effects(compressor)});def(AST_SimpleStatement,function(compressor){return
this.body.has_side_effects(compressor)});def(AST_Lambda,return_false);def(AST_Class,return_false);def(AST_DefClass,return_true);def(AST_Binary,function(compressor){return
this.left.has_side_effects(compressor)||this.right.has_side_effects(compressor)});def(AST_Assign,return_true);def(AST_Conditional,function(compressor){return
this.condition.has_side_effects(compressor)||this.consequent.has_side_effects(compressor)||this.alternative.has_side_effects(compressor)});def(AST_Unary,function(compressor){return
unary_side_effects(this.operator)||this.expression.has_side_effects(compressor)});def(AST_SymbolRef,function(compressor){return!this.is_declared(compressor)});def(AST_SymbolDeclaration,return_false);def(AST_Object,function(compressor){return
any(this.properties,compressor)});def(AST_ObjectProperty,function(compressor){if(this.key
instanceof
AST_ObjectKeyVal&&this.key.has_side_effects(compressor))return
true;return
this.value.has_side_effects(compressor)});def(AST_Array,function(compressor){return
any(this.elements,compressor)});def(AST_Dot,function(compressor){return
this.expression.may_throw_on_access(compressor)||this.expression.has_side_effects(compressor)});def(AST_Sub,function(compressor){return
this.expression.may_throw_on_access(compressor)||this.expression.has_side_effects(compressor)||this.property.has_side_effects(compressor)});def(AST_Sequence,function(compressor){return
any(this.expressions,compressor)});def(AST_Definitions,function(compressor){return
any(this.definitions,compressor)});def(AST_VarDef,function(compressor){return
this.value});def(AST_TemplateSegment,return_false);def(AST_TemplateString,function(compressor){return
any(this.segments,compressor)})})(function(node,func){node.DEFMETHOD(“has_side_effects”,func)});(function(def){def(AST_Node,return_true);def(AST_Class,return_false);def(AST_Constant,return_false);def(AST_EmptyStatement,return_false);def(AST_Lambda,return_false);def(AST_SymbolDeclaration,return_false);def(AST_This,return_false);function
any(list,compressor){for(var i=list.length;–i>=0;)if(list.may_throw(compressor))return
true;return false}def(AST_Array,function(compressor){return
any(this.elements,compressor)});def(AST_Assign,function(compressor){if(this.right.may_throw(compressor))return
true;if(!compressor.has_directive(“use
strict”)&&this.operator==“=”&&this.left instanceof
AST_SymbolRef){return false}return
this.left.may_throw(compressor)});def(AST_Binary,function(compressor){return
this.left.may_throw(compressor)||this.right.may_throw(compressor)});def(AST_Block,function(compressor){return
any(this.body,compressor)});def(AST_Call,function(compressor){if(any(this.args,compressor))return
true;if(this.is_expr_pure(compressor))return
false;if(this.expression.may_throw(compressor))return
true;return!(this.expression instanceof
AST_Lambda)||any(this.expression.body,compressor)});def(AST_Case,function(compressor){return
this.expression.may_throw(compressor)||any(this.body,compressor)});def(AST_Conditional,function(compressor){return
this.condition.may_throw(compressor)||this.consequent.may_throw(compressor)||this.alternative.may_throw(compressor)});def(AST_Definitions,function(compressor){return
any(this.definitions,compressor)});def(AST_Dot,function(compressor){return
this.expression.may_throw_on_access(compressor)||this.expression.may_throw(compressor)});def(AST_If,function(compressor){return
this.condition.may_throw(compressor)||this.body&&this.body.may_throw(compressor)||this.alternative&&this.alternative.may_throw(compressor)});def(AST_LabeledStatement,function(compressor){return
this.body.may_throw(compressor)});def(AST_Object,function(compressor){return
any(this.properties,compressor)});def(AST_ObjectProperty,function(compressor){return
this.value.may_throw(compressor)});def(AST_Sequence,function(compressor){return
any(this.expressions,compressor)});def(AST_SimpleStatement,function(compressor){return
this.body.may_throw(compressor)});def(AST_Sub,function(compressor){return
this.expression.may_throw_on_access(compressor)||this.expression.may_throw(compressor)||this.property.may_throw(compressor)});def(AST_Switch,function(compressor){return
this.expression.may_throw(compressor)||any(this.body,compressor)});def(AST_SymbolRef,function(compressor){return!this.is_declared(compressor)});def(AST_Try,function(compressor){return
any(this.body,compressor)||this.bcatch&&this.bcatch.may_throw(compressor)||this.bfinally&&this.bfinally.may_throw(compressor)});def(AST_Unary,function(compressor){if(this.operator==“typeof”&&this.expression
instanceof AST_SymbolRef)return false;return
this.expression.may_throw(compressor)});def(AST_VarDef,function(compressor){if(!this.value)return
false;return
this.value.may_throw(compressor)})})(function(node,func){node.DEFMETHOD(“may_throw”,func)});(function(def){function
all(list){for(var i=list.length;–i>=0;)if(!list.is_constant_expression())return
false;return true}function all_refs_local(scope){var self=this;var
result=true;self.walk(new TreeWalker(function(node){if(!result)return
true;if(node instanceof AST_SymbolRef){if(self.inlined){result=false;return
true}var
def=node.definition();if(member(def,self.enclosed)&&!self.variables.has(def.name)){if(scope){var
scope_def=scope.find_variable(node);if(def.undeclared?!scope_def:scope_def===def){result=“f”;return
true}}result=false}return true}if(node instanceof AST_This&&self
instanceof AST_Arrow){result=false;return true}}));return
result}def(AST_Node,return_false);def(AST_Constant,return_true);def(AST_Class,all_refs_local);def(AST_Lambda,all_refs_local);def(AST_Unary,function(){return
this.expression.is_constant_expression()});def(AST_Binary,function(){return
this.left.is_constant_expression()&&this.right.is_constant_expression()});def(AST_Array,function(){return
all(this.elements)});def(AST_Object,function(){return
all(this.properties)});def(AST_ObjectProperty,function(){return!(this.key
instanceof
AST_Node)&&this.value.is_constant_expression()})})(function(node,func){node.DEFMETHOD(“is_constant_expression”,func)});function
aborts(thing){return
thing&&thing.aborts()}(function(def){def(AST_Statement,return_null);def(AST_Jump,return_this);function
block_aborts(){var n=this.body.length;return n>0&&aborts(this.body)}def(AST_Import,function(){return
null});def(AST_BlockStatement,block_aborts);def(AST_SwitchBranch,block_aborts);def(AST_If,function(){return
this.alternative&&aborts(this.body)&&aborts(this.alternative)&&this})})(function(node,func){node.DEFMETHOD(“aborts”,func)});OPT(AST_Directive,function(self,compressor){if(compressor.has_directive(self.value)!==self){return
make_node(AST_EmptyStatement,self)}return
self});OPT(AST_Debugger,function(self,compressor){if(compressor.option(“drop_debugger”))return
make_node(AST_EmptyStatement,self);return
self});OPT(AST_LabeledStatement,function(self,compressor){if(self.body
instanceof
AST_Break&&compressor.loopcontrol_target(self.body)===self.body){return
make_node(AST_EmptyStatement,self)}return
self.label.references.length==0?self.body:self});OPT(AST_Block,function(self,compressor){tighten_body(self.body,compressor);return
self});OPT(AST_BlockStatement,function(self,compressor){tighten_body(self.body,compressor);switch(self.body.length){case
1:if(!compressor.has_directive(“use
strict”)&&compressor.parent()instanceof AST_If||can_be_evicted_from_block(self.body)){return self.body}break;case 0:return
make_node(AST_EmptyStatement,self)}return
self});AST_Scope.DEFMETHOD(“drop_unused”,function(compressor){if(!compressor.option(“unused”))return;if(compressor.has_directive(“use
asm”))return;var self=this;if(self.uses_eval||self.uses_with)return;var
drop_funcs=!(self instanceof AST_Toplevel)||compressor.toplevel.funcs;var
drop_vars=!(self instanceof AST_Toplevel)||compressor.toplevel.vars;var
assign_as_unused=/keep_assign/.test(compressor.option(“unused”))?return_false:function(node){if(node
instanceof
AST_Assign&&(node.write_only||node.operator==“=”)){return
node.left}if(node instanceof AST_Unary&&node.write_only)return
node.expression};var in_use=[];var in_use_ids=Object.create(null);var
fixed_ids=Object.create(null);if(self instanceof
AST_Toplevel&&compressor.top_retain){self.variables.each(function(def){if(compressor.top_retain(def)&&!(def.id
in in_use_ids)){in_use_ids=true;in_use.push(def)}})}var
var_defs_by_id=new Dictionary;var initializations=new Dictionary;var
destructuring_value=null;var scope=this;var tw=new
TreeWalker(function(node,descend){if(node===self)return;if(node instanceof
AST_Defun||node instanceof AST_DefClass){var
node_def=node.name.definition();var in_export=tw.parent()instanceof
AST_Export;if(in_export||!drop_funcs&&scope===self){if(node_def.global&&!(node_def.id
in in_use_ids)){in_use_ids=true;in_use.push(node_def)}}initializations.add(node_def.id,node);return
true}if(node instanceof
AST_SymbolFunarg&&scope===self){var_defs_by_id.add(node.definition().id,node)}if(node
instanceof AST_Definitions&&scope===self){var
in_export=tw.parent()instanceof
AST_Export;node.definitions.forEach(function(def){if(def.name instanceof
AST_SymbolVar){var_defs_by_id.add(def.name.definition().id,def)}if(in_export||!drop_vars){def.name.walk(new
TreeWalker(function(node){if(node instanceof AST_SymbolDeclaration){var
def=node.definition();if((in_export||def.global)&&!(def.id in
in_use_ids)){in_use_ids=true;in_use.push(def)}}}))}if(def.value){if(def.name
instanceof AST_Destructuring){var
destructuring_cache=destructuring_value;destructuring_value=def.value;def.walk(tw);destructuring_value=destructuring_cache}else{var
node_def=def.name.definition();initializations.add(node_def.id,def.value);if(!node_def.chained&&def.name.fixed_value()===def.value){fixed_ids=def}}if(def.value.has_side_effects(compressor)){def.value.walk(tw)}}});return
true}if(node.destructuring&&destructuring_value){initializations.add(node.name,destructuring_value)}return
scan_ref_scoped(node,descend)});self.walk(tw);tw=new
TreeWalker(scan_ref_scoped);for(var i=0;i<in_use.length;i++){var init=initializations.get(in_use.id);if(init)init.forEach(function(init){init.walk(tw)})}var
tt=new TreeTransformer(function before(node,descend,in_list){var
parent=tt.parent();if(drop_vars){var sym=assign_as_unused(node);if(sym
instanceof AST_SymbolRef){var def=sym.definition();var in_use=def.id in
in_use_ids;if(node instanceof AST_Assign){if(!in_use||def.id in fixed_ids&&fixed_ids!==node){return
maintain_this_binding(parent,node,node.right.transform(tt))}}else
if(!in_use)return
make_node(AST_Number,node,{value:0})}}if(scope!==self)return;if(node.name&&(!compressor.option(“keep_classnames”)&&node
instanceof
AST_ClassExpression||!compressor.option(“keep_fnames”)&&node
instanceof AST_Function)){var def=node.name.definition();if(!(def.id in
in_use_ids)||def.orig.length>1)node.name=null}if(node instanceof
AST_Lambda&&!(node instanceof AST_Accessor)){var
trim=!compressor.option(“keep_fargs”);for(var
a=node.argnames,i=a.length;–i>=0;){var sym=a;if(sym
instanceof AST_Expansion){sym=sym.expression}if(sym instanceof
AST_DefaultAssign){sym=sym.left}if(!(sym instanceof
AST_Destructuring)&&!(sym.definition().id in
in_use_ids)){sym.__unused=true;if(trim){a.pop();compressor(“Dropping
unused function argument {name}
[{file}:{line},{col}]”,template(sym))}}else{trim=false}}}if((node
instanceof AST_Defun||node instanceof
AST_DefClass)&&node!==self){var def=node.name.definition();var
keep=def.id in in_use_ids||!drop_funcs&&def.global;if(!keep){compressor(“Dropping
unused function {name}
[{file}:{line},{col}]”,template(node.name));def.eliminated++;return
make_node(AST_EmptyStatement,node)}}if(node instanceof
AST_Definitions&&!(parent instanceof
AST_ForIn&&parent.init===node)){var drop_block=!(parent instanceof
AST_Toplevel)&&!(node instanceof AST_Var);var body=[],head=,tail=[];var
side_effects=[];node.definitions.forEach(function(def){if(def.value)def.value=def.value.transform(tt);if(def.name
instanceof AST_Destructuring)return tail.push(def);var
sym=def.name.definition();if(drop_block&&sym.global)return
tail.push(def);if(!(drop_vars||drop_block)||sym.id in
in_use_ids){if(def.value&&sym.id in fixed_ids&&fixed_ids!==def){def.value=def.value.drop_side_effect_free(compressor)}if(def.name
instanceof AST_SymbolVar){var
var_defs=var_defs_by_id.get(sym.id);if(var_defs.length>1&&(!def.value||sym.orig.indexOf(def.name)>sym.eliminated)){compressor.warn(“Dropping
duplicated definition of variable {name}
[{file}:{line},{col}]”,template(def.name));if(def.value){var
ref=make_node(AST_SymbolRef,def.name,def.name);sym.references.push(ref);var
assign=make_node(AST_Assign,def,{operator:“=”,left:ref,right:def.value});if(fixed_ids===def){fixed_ids=assign}side_effects.push(assign.transform(tt))}remove(var_defs,def);sym.eliminated++;return}}if(def.value){if(side_effects.length>0){if(tail.length>0){side_effects.push(def.value);def.value=make_sequence(def.value,side_effects)}else{body.push(make_node(AST_SimpleStatement,node,{body:make_sequence(node,side_effects)}))}side_effects=[]}tail.push(def)}else{head.push(def)}}else
if(sym.originstanceof AST_SymbolCatch){var
value=def.value&&def.value.drop_side_effect_free(compressor);if(value)side_effects.push(value);def.value=null;head.push(def)}else{var
value=def.value&&def.value.drop_side_effect_free(compressor);if(value){compressor.warn(“Side
effects in initialization of unused variable {name}
[{file}:{line},{col}]”,template(def.name));side_effects.push(value)}else{compressor(“Dropping
unused variable {name}
[{file}:{line},{col}]”,template(def.name))}sym.eliminated++}});if(head.length>0||tail.length>0){node.definitions=head.concat(tail);body.push(node)}if(side_effects.length>0){body.push(make_node(AST_SimpleStatement,node,{body:make_sequence(node,side_effects)}))}switch(body.length){case
0:return in_list?MAP.skip:make_node(AST_EmptyStatement,node);case 1:return
body;default:return
in_list?MAP.splice(body):make_node(AST_BlockStatement,node,{body:body})}}if(node
instanceof AST_For){descend(node,this);var block;if(node.init instanceof
AST_BlockStatement){block=node.init;node.init=block.body.pop();block.body.push(node)}if(node.init
instanceof AST_SimpleStatement){node.init=node.init.body}else
if(is_empty(node.init)){node.init=null}return!block?node:in_list?MAP.splice(block.body):block}if(node
instanceof AST_LabeledStatement&&node.body instanceof
AST_For){descend(node,this);if(node.body instanceof AST_BlockStatement){var
block=node.body;node.body=block.body.pop();block.body.push(node);return
in_list?MAP.splice(block.body):block}return node}if(node instanceof
AST_BlockStatement){descend(node,this);if(in_list&&all(node.body,can_be_evicted_from_block)){return
MAP.splice(node.body)}return node}if(node instanceof AST_Scope){var
save_scope=scope;scope=node;descend(node,this);scope=save_scope;return
node}function
template(sym){return{name:sym.name,file:sym.start.file,line:sym.start.line,col:sym.start.col}}});self.transform(tt);function
scan_ref_scoped(node,descend){var
node_def,sym=assign_as_unused(node);if(sym instanceof
AST_SymbolRef&&!is_ref_of(node.left,AST_SymbolBlockDeclaration)&&self.variables.get(sym.name)===(node_def=sym.definition())){if(node
instanceof
AST_Assign){node.right.walk(tw);if(!node_def.chained&&node.left.fixed_value()===node.right){fixed_ids=node}}return true}if(node instanceof
AST_SymbolRef){node_def=node.definition();if(!(node_def.id in
in_use_ids)){in_use_ids=true;in_use.push(node_def);if(node_def=node_def.redefined()){in_use_ids=true;in_use.push(node_def)}}return
true}if(node instanceof AST_Scope){var
save_scope=scope;scope=node;descend();scope=save_scope;return
true}}});AST_Scope.DEFMETHOD(“hoist_declarations”,function(compressor){var
self=this;if(compressor.has_directive(“use asm”))return
self;if(!Array.isArray(self.body))return self;var
hoist_funs=compressor.option(“hoist_funs”);var
hoist_vars=compressor.option(“hoist_vars”);if(hoist_funs||hoist_vars){var
dirs=[];var hoisted=[];var vars=new
Dictionary,vars_found=0,var_decl=0;self.walk(new
TreeWalker(function(node){if(node instanceof
AST_Scope&&node!==self)return true;if(node instanceof
AST_Var){++var_decl;return
true}}));hoist_vars=hoist_vars&&var_decl>1;var tt=new
TreeTransformer(function before(node){if(node!==self){if(node instanceof
AST_Directive){dirs.push(node);return
make_node(AST_EmptyStatement,node)}if(hoist_funs&&node instanceof
AST_Defun&&!(tt.parent()instanceof
AST_Export)&&tt.parent()===self){hoisted.push(node);return
make_node(AST_EmptyStatement,node)}if(hoist_vars&&node instanceof
AST_Var){node.definitions.forEach(function(def){if(def.name instanceof
AST_Destructuring)return;vars.set(def.name.name,def);++vars_found});var
seq=node.to_assignments(compressor);var p=tt.parent();if(p instanceof
AST_ForIn&&p.init===node){if(seq==null){var def=node.definitions.name;return
make_node(AST_SymbolRef,def,def)}return seq}if(p instanceof
AST_For&&p.init===node){return seq}if(!seq)return
make_node(AST_EmptyStatement,node);return
make_node(AST_SimpleStatement,node,{body:seq})}if(node instanceof
AST_Scope)return node}});self=self.transform(tt);if(vars_found>0){var
defs=[];vars.each(function(def,name){if(self instanceof
AST_Lambda&&find_if(function(x){return
x.name==def.name.name},self.args_as_names())){vars.del(name)}else{def=def.clone();def.value=null;defs.push(def);vars.set(name,def)}});if(defs.length>0){for(var
i=0;i<self.body.length;){if(self.bodyinstanceof
AST_SimpleStatement){var expr=self.body.body,sym,assign;if(expr instanceof
AST_Assign&&expr.operator==“=”&&(sym=expr.left)instanceof
AST_Symbol&&vars.has(sym.name)){var
def=vars.get(sym.name);if(def.value)break;def.value=expr.right;remove(defs,def);defs.push(def);self.body.splice(i,1);continue}if(expr
instanceof AST_Sequence&&(assign=expr.expressions)instanceof
AST_Assign&&assign.operator==“=”&&(sym=assign.left)instanceof
AST_Symbol&&vars.has(sym.name)){var def=vars.get(sym.name);if(def.value)break;def.value=assign.right;remove(defs,def);defs.push(def);self.body.body=make_sequence(expr,expr.expressions.slice(1));continue}}if(self.bodyinstanceof
AST_EmptyStatement){self.body.splice(i,1);continue}if(self.bodyinstanceof AST_BlockStatement){var tmp=.concat(self.body.body);self.body.splice.apply(self.body,tmp);continue}break}defs=make_node(AST_Var,self,{definitions:defs});hoisted.push(defs)}}self.body=dirs.concat(hoisted,self.body)}return
self});AST_Scope.DEFMETHOD(“var_names”,function(){var
var_names=this._var_names;if(!var_names){this._var_names=var_names=Object.create(null);this.enclosed.forEach(function(def){var_names=true});this.variables.each(function(def,name){var_names=true})}return
var_names});AST_Scope.DEFMETHOD(“make_var_name”,function(prefix){var var_names=this.var_names();prefix=prefix.replace(/+/gi,“_”);var
name=prefix;for(var i=0;var_names;i++)name=prefix+“$”+i;var_names=true;return
name});AST_Scope.DEFMETHOD(“hoist_properties”,function(compressor){var
self=this;if(!compressor.option(“hoist_props”)||compressor.has_directive(“use
asm”))return self;var top_retain=self instanceof
AST_Toplevel&&compressor.top_retain||return_false;var
defs_by_id=Object.create(null);var tt=new
TreeTransformer(function(node,descend){if(node instanceof
AST_Definitions&&tt.parent()instanceof AST_Export)return
node;if(node instanceof AST_VarDef){var
sym=node.name,def,value;if(sym.scope===self&&(def=sym.definition()).escaped!=1&&!def.single_use&&!def.direct_access&&!compressor.exposed(def)&&!top_retain(def)&&(value=sym.fixed_value())===node.value&&value
instanceof AST_Object){descend(node,this);var defs=new Dictionary;var assignments=[];value.properties.forEach(function(prop){assignments.push(make_node(AST_VarDef,node,{name:make_sym(prop.key),value:prop.value}))});defs_by_id=defs;return
MAP.splice(assignments)}}if(node instanceof
AST_PropAccess&&node.expression instanceof AST_SymbolRef){var defs=defs_by_id;if(defs){var
def=defs.get(get_value(node.property));var
sym=make_node(AST_SymbolRef,node,{name:def.name,scope:node.expression.scope,thedef:def});sym.reference({});return
sym}}function make_sym(key){var
new_var=make_node(sym.CTOR,sym,{name:self.make_var_name(sym.name+“_”+key),scope:self});var
def=self.def_variable(new_var);defs.set(key,def);self.enclosed.push(def);return
new_var}});return self.transform(tt)});(function(def){function
trim(nodes,compressor,first_in_statement){var
len=nodes.length;if(!len)return null;var ret=[],changed=false;for(var
i=0;i<len;i++){var node=nodes.drop_side_effect_free(compressor,first_in_statement);changed|=node!==nodes;if(node){ret.push(node);first_in_statement=false}}return
changed?ret.length?ret:null:nodes}def(AST_Node,return_this);def(AST_Constant,return_null);def(AST_This,return_null);def(AST_Call,function(compressor,first_in_statement){if(!this.is_expr_pure(compressor)){if(this.expression.is_call_pure(compressor)){var
exprs=this.args.slice();exprs.unshift(this.expression.expression);exprs=trim(exprs,compressor,first_in_statement);return
exprs&&make_sequence(this,exprs)}if(is_func_expr(this.expression)&&(!this.expression.name||!this.expression.name.definition().references.length)){var
node=this.clone();node.expression.process_expression(false,compressor);return
node}return this}if(this.pure){compressor.warn(“Dropping __PURE__ call
[{file}:{line},{col}]”,this.start)}var
args=trim(this.args,compressor,first_in_statement);return
args&&make_sequence(this,args)});def(AST_Accessor,return_null);def(AST_Function,return_null);def(AST_Arrow,return_null);def(AST_ClassExpression,return_null);def(AST_Binary,function(compressor,first_in_statement){var
right=this.right.drop_side_effect_free(compressor);if(!right)return
this.left.drop_side_effect_free(compressor,first_in_statement);if(lazy_op(this.operator)){if(right===this.right)return
this;var node=this.clone();node.right=right;return node}else{var
left=this.left.drop_side_effect_free(compressor,first_in_statement);if(!left)return
this.right.drop_side_effect_free(compressor,first_in_statement);return make_sequence(this,)}});def(AST_Assign,function(compressor){var
left=this.left;if(left.has_side_effects(compressor)||compressor.has_directive(“use
strict”)&&left instanceof
AST_PropAccess&&left.expression.is_constant()){return
this}this.write_only=true;while(left instanceof
AST_PropAccess){left=left.expression}if(left.is_constant_expression(compressor.find_parent(AST_Scope))){return
this.right.drop_side_effect_free(compressor)}return
this});def(AST_Conditional,function(compressor){var
consequent=this.consequent.drop_side_effect_free(compressor);var
alternative=this.alternative.drop_side_effect_free(compressor);if(consequent===this.consequent&&alternative===this.alternative)return
this;if(!consequent)return
alternative?make_node(AST_Binary,this,{operator:“||”,left:this.condition,right:alternative}):this.condition.drop_side_effect_free(compressor);if(!alternative)return
make_node(AST_Binary,this,{operator:“&&”,left:this.condition,right:consequent});var
node=this.clone();node.consequent=consequent;node.alternative=alternative;return
node});def(AST_Unary,function(compressor,first_in_statement){if(unary_side_effects(this.operator)){this.write_only=!this.expression.has_side_effects(compressor);return
this}if(this.operator==“typeof”&&this.expression instanceof
AST_SymbolRef)return null;var
expression=this.expression.drop_side_effect_free(compressor,first_in_statement);if(first_in_statement&&expression&&is_iife_call(expression)){if(expression===this.expression&&this.operator==“!”)return
this;return expression.negate(compressor,first_in_statement)}return
expression});def(AST_SymbolRef,function(compressor){return
this.is_declared(compressor)?null:this});def(AST_Object,function(compressor,first_in_statement){var
values=trim(this.properties,compressor,first_in_statement);return
values&&make_sequence(this,values)});def(AST_ObjectProperty,function(compressor,first_in_statement){return
this.value.drop_side_effect_free(compressor,first_in_statement)});def(AST_Array,function(compressor,first_in_statement){var
values=trim(this.elements,compressor,first_in_statement);return
values&&make_sequence(this,values)});def(AST_Dot,function(compressor,first_in_statement){if(this.expression.may_throw_on_access(compressor))return
this;return
this.expression.drop_side_effect_free(compressor,first_in_statement)});def(AST_Sub,function(compressor,first_in_statement){if(this.expression.may_throw_on_access(compressor))return
this;var
expression=this.expression.drop_side_effect_free(compressor,first_in_statement);if(!expression)return
this.property.drop_side_effect_free(compressor,first_in_statement);var
property=this.property.drop_side_effect_free(compressor);if(!property)return
expression;return make_sequence(this,)});def(AST_Sequence,function(compressor){var
last=this.tail_node();var
expr=last.drop_side_effect_free(compressor);if(expr===last)return this;var
expressions=this.expressions.slice(0,-1);if(expr)expressions.push(expr);return
make_sequence(this,expressions)});def(AST_Expansion,function(compressor,first_in_statement){return
this.expression.drop_side_effect_free(compressor,first_in_statement)});def(AST_TemplateSegment,return_null);def(AST_TemplateString,function(compressor){var
values=trim(this.segments,compressor,first_in_statement);return
values&&make_sequence(this,values)})})(function(node,func){node.DEFMETHOD(“drop_side_effect_free”,func)});OPT(AST_SimpleStatement,function(self,compressor){if(compressor.option(“side_effects”)){var
body=self.body;var
node=body.drop_side_effect_free(compressor,true);if(!node){compressor.warn(“Dropping
side-effect-free statement [{file}:{line},{col}]”,self.start);return
make_node(AST_EmptyStatement,self)}if(node!==body){return
make_node(AST_SimpleStatement,self,{body:node})}}return
self});OPT(AST_While,function(self,compressor){return
compressor.option(“loops”)?make_node(AST_For,self,self).optimize(compressor):self});OPT(AST_Do,function(self,compressor){if(!compressor.option(“loops”))return
self;var cond=self.condition.tail_node().evaluate(compressor);if(!(cond
instanceof AST_Node)){if(cond)return
make_node(AST_For,self,{body:make_node(AST_BlockStatement,self.body,{})}).optimize(compressor);var
has_loop_control=false;var tw=new TreeWalker(function(node){if(node
instanceof AST_Scope||has_loop_control)return true;if(node instanceof
AST_LoopControl&&tw.loopcontrol_target(node)===self)return
has_loop_control=true});var parent=compressor.parent();(parent instanceof
AST_LabeledStatement?parent:self).walk(tw);if(!has_loop_control)return
make_node(AST_BlockStatement,self.body,{}).optimize(compressor)}return
self});function if_break_in_loop(self,compressor){var first=self.body
instanceof AST_BlockStatement?self.body.body:self.body;if(compressor.option(“dead_code”)&&is_break(first)){var
body=[];if(self.init instanceof AST_Statement){body.push(self.init)}else
if(self.init){body.push(make_node(AST_SimpleStatement,self.init,{body:self.init}))}if(self.condition){body.push(make_node(AST_SimpleStatement,self.condition,{body:self.condition}))}extract_declarations_from_unreachable_code(compressor,self.body,body);return
make_node(AST_BlockStatement,self,{body:body})}if(first instanceof
AST_If){if(is_break(first.body)){if(self.condition){self.condition=make_node(AST_Binary,self.condition,{left:self.condition,operator:“&&”,right:first.condition.negate(compressor)})}else{self.condition=first.condition.negate(compressor)}drop_it(first.alternative)}else
if(is_break(first.alternative)){if(self.condition){self.condition=make_node(AST_Binary,self.condition,{left:self.condition,operator:“&&”,right:first.condition})}else{self.condition=first.condition}drop_it(first.body)}}return
self;function is_break(node){return node instanceof
AST_Break&&compressor.loopcontrol_target(node)===compressor.self()}function
drop_it(rest){rest=as_statement_array(rest);if(self.body instanceof
AST_BlockStatement){self.body=self.body.clone();self.body.body=rest.concat(self.body.body.slice(1));self.body=self.body.transform(compressor)}else{self.body=make_node(AST_BlockStatement,self.body,{body:rest}).transform(compressor)}self=if_break_in_loop(self,compressor)}}OPT(AST_For,function(self,compressor){if(!compressor.option(“loops”))return
self;if(compressor.option(“side_effects”)&&self.init){self.init=self.init.drop_side_effect_free(compressor)}if(self.condition){var
cond=self.condition.evaluate(compressor);if(!(cond instanceof
AST_Node)){if(cond)self.condition=null;else
if(!compressor.option(“dead_code”)){var
orig=self.condition;self.condition=make_node_from_constant(cond,self.condition);self.condition=best_of_expression(self.condition.transform(compressor),orig)}}if(compressor.option(“dead_code”)){if(cond
instanceof
AST_Node)cond=self.condition.tail_node().evaluate(compressor);if(!cond){var
body=[];extract_declarations_from_unreachable_code(compressor,self.body,body);if(self.init
instanceof AST_Statement){body.push(self.init)}else
if(self.init){body.push(make_node(AST_SimpleStatement,self.init,{body:self.init}))}body.push(make_node(AST_SimpleStatement,self.condition,{body:self.condition}));return
make_node(AST_BlockStatement,self,{body:body}).optimize(compressor)}}}return
if_break_in_loop(self,compressor)});OPT(AST_If,function(self,compressor){if(is_empty(self.alternative))self.alternative=null;if(!compressor.option(“conditionals”))return
self;var
cond=self.condition.evaluate(compressor);if(!compressor.option(“dead_code”)&&!(cond
instanceof AST_Node)){var
orig=self.condition;self.condition=make_node_from_constant(cond,orig);self.condition=best_of_expression(self.condition.transform(compressor),orig)}if(compressor.option(“dead_code”)){if(cond
instanceof
AST_Node)cond=self.condition.tail_node().evaluate(compressor);if(!cond){compressor.warn(“Condition
always false [{file}:{line},{col}]”,self.condition.start);var
body=[];extract_declarations_from_unreachable_code(compressor,self.body,body);body.push(make_node(AST_SimpleStatement,self.condition,{body:self.condition}));if(self.alternative)body.push(self.alternative);return
make_node(AST_BlockStatement,self,{body:body}).optimize(compressor)}else
if(!(cond instanceof AST_Node)){compressor.warn(“Condition always true
[{file}:{line},{col}]”,self.condition.start);var
body=[];if(self.alternative){extract_declarations_from_unreachable_code(compressor,self.alternative,body)}body.push(make_node(AST_SimpleStatement,self.condition,{body:self.condition}));body.push(self.body);return
make_node(AST_BlockStatement,self,{body:body}).optimize(compressor)}}var
negated=self.condition.negate(compressor);var
self_condition_length=self.condition.print_to_string().length;var
negated_length=negated.print_to_string().length;var
negated_is_best=negated_length<self_condition_length;if(self.alternative&&negated_is_best){negated_is_best=false;self.condition=negated;var
tmp=self.body;self.body=self.alternative||make_node(AST_EmptyStatement,self);self.alternative=tmp}if(is_empty(self.body)&&is_empty(self.alternative)){return
make_node(AST_SimpleStatement,self.condition,{body:self.condition.clone()}).optimize(compressor)}if(self.body
instanceof AST_SimpleStatement&&self.alternative instanceof
AST_SimpleStatement){return
make_node(AST_SimpleStatement,self,{body:make_node(AST_Conditional,self,{condition:self.condition,consequent:self.body.body,alternative:self.alternative.body})}).optimize(compressor)}if(is_empty(self.alternative)&&self.body
instanceof
AST_SimpleStatement){if(self_condition_length===negated_length&&!negated_is_best&&self.condition
instanceof
AST_Binary&&self.condition.operator==“||”){negated_is_best=true}if(negated_is_best)return
make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:“||”,left:negated,right:self.body.body})}).optimize(compressor);return
make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:“&&”,left:self.condition,right:self.body.body})}).optimize(compressor)}if(self.body
instanceof AST_EmptyStatement&&self.alternative instanceof
AST_SimpleStatement){return
make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:“||”,left:self.condition,right:self.alternative.body})}).optimize(compressor)}if(self.body
instanceof AST_Exit&&self.alternative instanceof
AST_Exit&&self.body.TYPE==self.alternative.TYPE){return
make_node(self.body.CTOR,self,{value:make_node(AST_Conditional,self,{condition:self.condition,consequent:self.body.value||make_node(AST_Undefined,self.body),alternative:self.alternative.value||make_node(AST_Undefined,self.alternative)}).transform(compressor)}).optimize(compressor)}if(self.body
instanceof
AST_If&&!self.body.alternative&&!self.alternative){self=make_node(AST_If,self,{condition:make_node(AST_Binary,self.condition,{operator:“&&”,left:self.condition,right:self.body.condition}),body:self.body.body,alternative:null})}if(aborts(self.body)){if(self.alternative){var
alt=self.alternative;self.alternative=null;return
make_node(AST_BlockStatement,self,{body:}).optimize(compressor)}}if(aborts(self.alternative)){var
body=self.body;self.body=self.alternative;self.condition=negated_is_best?negated:self.condition.negate(compressor);self.alternative=null;return
make_node(AST_BlockStatement,self,{body:}).optimize(compressor)}return
self});OPT(AST_Switch,function(self,compressor){if(!compressor.option(“switches”))return
self;var branch;var value=self.expression.evaluate(compressor);if(!(value
instanceof AST_Node)){var
orig=self.expression;self.expression=make_node_from_constant(value,orig);self.expression=best_of_expression(self.expression.transform(compressor),orig)}if(!compressor.option(“dead_code”))return
self;if(value instanceof
AST_Node){value=self.expression.tail_node().evaluate(compressor)}var
decl=[];var body=[];var default_branch;var exact_match;for(var
i=0,len=self.body.length;i<len&&!exact_match;i++){branch=self.body;if(branch instanceof
AST_Default){if(!default_branch){default_branch=branch}else{eliminate_branch(branch,body)}}else if(!(value
instanceof AST_Node)){var
exp=branch.expression.evaluate(compressor);if(!(exp instanceof
AST_Node)&&exp!==value){eliminate_branch(branch,body);continue}if(exp
instanceof
AST_Node)exp=branch.expression.tail_node().evaluate(compressor);if(exp===value){exact_match=branch;if(default_branch){var
default_index=body.indexOf(default_branch);body.splice(default_index,1);eliminate_branch(default_branch,body);default_branch=null}}}if(aborts(branch)){var
prev=body;if(aborts(prev)&&prev.body.length==branch.body.length&&make_node(AST_BlockStatement,prev,prev).equivalent_to(make_node(AST_BlockStatement,branch,branch))){prev.body=[]}}body.push(branch)}while(iself.name.name
“ redefined
[{file}:{line},{col}]”,self.start)}return
self});OPT(AST_TemplateString,function(self,compressor){if(!compressor.option(“evaluate”)||compressor.parent()instanceof
AST_PrefixedTemplateString)return self;var segments=[];for(var
i=0;i<self.segments.length;i++){var segment=self.segments;if(segment instanceof AST_Node){var
result=segment.evaluate(compressor);if(result!==segment&&(result+“”).length<=segment.print_to_string().length+“${}”.length){segments.value=segments.value+result+self.segments.value;continue}}segments.push(segment)}self.segments=segments;return
segments.length==1?make_node(AST_String,self,segments):self});OPT(AST_PrefixedTemplateString,function(self,compressor){return
self});function
lift_key(self,compressor){if(!compressor.option(“computed_props”))return
self;if(!(self.key instanceof AST_Constant))return self;if(self.key
instanceof AST_String||self.key instanceof
AST_Number){if(self.key.value==“constructor”&&compressor.parent()instanceof
AST_Class)return self;if(self instanceof
AST_ObjectKeyVal){self.key=self.key.value}else{self.key=make_node(AST_SymbolMethod,self.key,{name:self.key.value})}}return
self}OPT(AST_ObjectProperty,lift_key);OPT(AST_ConciseMethod,function(self,compressor){lift_key(self,compressor);if(compressor.option(“arrows”)&&compressor.parent()instanceof
AST_Object&&!self.value.uses_arguments&&!self.value.uses_eval&&self.value.body.length==1&&self.value.bodyinstanceof
AST_Return&&self.value.body.value&&!self.value.contains_this()){var
arrow=make_node(AST_Arrow,self.value,self.value);arrow.async=self.async;arrow.is_generator=self.is_generator;return
make_node(AST_ObjectKeyVal,self,{key:self.key instanceof
AST_SymbolMethod?self.key.name:self.key,value:arrow,quote:self.quote})}return
self});OPT(AST_ObjectKeyVal,function(self,compressor){lift_key(self,compressor);var
unsafe_methods=compressor.option(“unsafe_methods”);if(unsafe_methods&&compressor.option(“ecma”)>=6&&(!(unsafe_methods
instanceof RegExp)||unsafe_methods.test(self.key+“”))){var key=self.key;var
value=self.value;var is_arrow_with_block=value instanceof
AST_Arrow&&Array.isArray(value.body)&&!value.contains_this();if((is_arrow_with_block||value
instanceof AST_Function)&&!value.name){return
make_node(AST_ConciseMethod,self,{async:value.async,is_generator:value.is_generator,key:key
instanceof
AST_Node?key:make_node(AST_SymbolMethod,self,{name:key}),value:make_node(AST_Accessor,value,value),quote:self.quote})}}return
self})})();
/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;function SourceMap(options){options=defaults(options,{file:null,root:null,orig:null,orig_line_diff:0,dest_line_diff:0});var generator=new MOZ_SourceMap.SourceMapGenerator({file:options.file,sourceRoot:options.root});var orig_map=options.orig&&new MOZ_SourceMap.SourceMapConsumer(options.orig);if(orig_map&&Array.isArray(options.orig.sources)){orig_map._sources.toArray().forEach(function(source){var sourceContent=orig_map.sourceContentFor(source,true);if(sourceContent){generator.setSourceContent(source,sourceContent)}})}function add(source,gen_line,gen_col,orig_line,orig_col,name){if(orig_map){var info=orig_map.originalPositionFor({line:orig_line,column:orig_col});if(info.source===null){return}source=info.source;orig_line=info.line;orig_col=info.column;name=info.name||name}generator.addMapping({generated:{line:gen_line+options.dest_line_diff,column:gen_col},original:{line:orig_line+options.orig_line_diff,column:orig_col},source:source,name:name})}return{add:add,get:function(){return generator},toString:function(){return JSON.stringify(generator.toJSON())}}} /***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;(function(){var normalize_directives=function(body){var
in_directive=true;for(var i=0;i<body.length;i++){if(in_directive&&bodyinstanceof AST_Statement&&body.body instanceof AST_String){body=new AST_Directive({start:body.start,end:body.end,value:body.body.value})}else if(in_directive&&!(bodyinstanceof AST_Statement&&body.body instanceof
AST_String)){in_directive=false}}return body};var
MOZ_TO_ME={Program:function(M){return new
AST_Toplevel({start:my_start_token(M),end:my_end_token(M),body:normalize_directives(M.body.map(from_moz))})},FunctionDeclaration:function(M){return
new
AST_Defun({start:my_start_token(M),end:my_end_token(M),name:from_moz(M.id),argnames:M.params.map(from_moz),body:normalize_directives(from_moz(M.body).body)})},FunctionExpression:function(M){return
new
AST_Function({start:my_start_token(M),end:my_end_token(M),name:from_moz(M.id),argnames:M.params.map(from_moz),body:normalize_directives(from_moz(M.body).body)})},ExpressionStatement:function(M){return
new
AST_SimpleStatement({start:my_start_token(M),end:my_end_token(M),body:from_moz(M.expression)})},TryStatement:function(M){var
handlers=M.handlers||;if(handlers.length>1||M.guardedHandlers&&M.guardedHandlers.length){throw
new Error(“Multiple catch clauses are not supported.”)}return new
AST_Try({start:my_start_token(M),end:my_end_token(M),body:from_moz(M.block).body,bcatch:from_moz(handlers),bfinally:M.finalizer?new
AST_Finally(from_moz(M.finalizer)):null})},Property:function(M){var
key=M.key;var
args={start:my_start_token(key),end:my_end_token(M.value),key:key.type==“Identifier”?key.name:key.value,value:from_moz(M.value)};if(M.kind==“init”)return
new AST_ObjectKeyVal(args);args.key=new
AST_SymbolMethod({name:args.key});args.value=new
AST_Accessor(args.value);if(M.kind==“get”)return new
AST_ObjectGetter(args);if(M.kind==“set”)return new
AST_ObjectSetter(args)},ArrayExpression:function(M){return new
AST_Array({start:my_start_token(M),end:my_end_token(M),elements:M.elements.map(function(elem){return
elem===null?new
AST_Hole:from_moz(elem)})})},ObjectExpression:function(M){return new
AST_Object({start:my_start_token(M),end:my_end_token(M),properties:M.properties.map(function(prop){prop.type=“Property”;return
from_moz(prop)})})},SequenceExpression:function(M){return new
AST_Sequence({start:my_start_token(M),end:my_end_token(M),expressions:M.expressions.map(from_moz)})},MemberExpression:function(M){return
new(M.computed?AST_Sub:AST_Dot)({start:my_start_token(M),end:my_end_token(M),property:M.computed?from_moz(M.property):M.property.name,expression:from_moz(M.object)})},SwitchCase:function(M){return
new(M.test?AST_Case:AST_Default)({start:my_start_token(M),end:my_end_token(M),expression:from_moz(M.test),body:M.consequent.map(from_moz)})},VariableDeclaration:function(M){return
new(M.kind===“const”?AST_Const:AST_Var)({start:my_start_token(M),end:my_end_token(M),definitions:M.declarations.map(from_moz)})},Literal:function(M){var
val=M.value,args={start:my_start_token(M),end:my_end_token(M)};if(val===null)return
new AST_Null(args);switch(typeof val){case“string”:args.value=val;return
new AST_String(args);case“number”:args.value=val;return new
AST_Number(args);case“boolean”:return
new(val?AST_True:AST_False)(args);default:var
rx=M.regex;if(rx&&rx.pattern){args.value=new
RegExp(rx.pattern,rx.flags).toString()}else{args.value=M.regex&&M.raw?M.raw:val}return
new AST_RegExp(args)}},Identifier:function(M){var p=FROM_MOZ_STACK;return
new(p.type==“LabeledStatement”?AST_Label:p.type==“VariableDeclarator”&&p.id===M?p.kind==“const”?AST_SymbolConst:AST_SymbolVar:p.type==“FunctionExpression”?p.id===M?AST_SymbolLambda:AST_SymbolFunarg:p.type==“FunctionDeclaration”?p.id===M?AST_SymbolDefun:AST_SymbolFunarg:p.type==“CatchClause”?AST_SymbolCatch:p.type==“BreakStatement”||p.type==“ContinueStatement”?AST_LabelRef:AST_SymbolRef)({start:my_start_token(M),end:my_end_token(M),name:M.name})}};MOZ_TO_ME.UpdateExpression=MOZ_TO_ME.UnaryExpression=function
To_Moz_Unary(M){var prefix=“prefix”in
M?M.prefix:M.type==“UnaryExpression”?true:false;return
new(prefix?AST_UnaryPrefix:AST_UnaryPostfix)({start:my_start_token(M),end:my_end_token(M),operator:M.operator,expression:from_moz(M.argument)})};map(“EmptyStatement”,AST_EmptyStatement);map(“BlockStatement”,AST_BlockStatement,“body@body”);map(“IfStatement”,AST_If,“test>condition,
consequent>body,
alternate>alternative”);map(“LabeledStatement”,AST_LabeledStatement,“label>label,
body>body”);map(“BreakStatement”,AST_Break,“label>label”);map(“ContinueStatement”,AST_Continue,“label>label”);map(“WithStatement”,AST_With,“object>expression,
body>body”);map(“SwitchStatement”,AST_Switch,“discriminant>expression,
cases@body”);map(“ReturnStatement”,AST_Return,“argument>value”);map(“ThrowStatement”,AST_Throw,“argument>value”);map(“WhileStatement”,AST_While,“test>condition,
body>body”);map(“DoWhileStatement”,AST_Do,“test>condition,
body>body”);map(“ForStatement”,AST_For,“init>init, test>condition,
update>step,
body>body”);map(“ForInStatement”,AST_ForIn,“left>init,
right>object,
body>body”);map(“DebuggerStatement”,AST_Debugger);map(“VariableDeclarator”,AST_VarDef,“id>name,
init>value”);map(“CatchClause”,AST_Catch,“param>argname,
body%body”);map(“ThisExpression”,AST_This);map(“BinaryExpression”,AST_Binary,“operator=operator,
left>left,
right>right”);map(“LogicalExpression”,AST_Binary,“operator=operator,
left>left,
right>right”);map(“AssignmentExpression”,AST_Assign,“operator=operator,
left>left,
right>right”);map(“ConditionalExpression”,AST_Conditional,“test>condition,
consequent>consequent,
alternate>alternative”);map(“NewExpression”,AST_New,“callee>expression,
arguments@args”);map(“CallExpression”,AST_Call,“callee>expression,
arguments@args”);def_to_moz(AST_Toplevel,function To_Moz_Program(M){return
to_moz_scope(“Program”,M)});def_to_moz(AST_Defun,function
To_Moz_FunctionDeclaration(M){return{type:“FunctionDeclaration”,id:to_moz(M.name),params:M.argnames.map(to_moz),body:to_moz_scope(“BlockStatement”,M)}});def_to_moz(AST_Function,function
To_Moz_FunctionExpression(M){return{type:“FunctionExpression”,id:to_moz(M.name),params:M.argnames.map(to_moz),body:to_moz_scope(“BlockStatement”,M)}});def_to_moz(AST_Directive,function
To_Moz_Directive(M){return{type:“ExpressionStatement”,expression:{type:“Literal”,value:M.value}}});def_to_moz(AST_SimpleStatement,function
To_Moz_ExpressionStatement(M){return{type:“ExpressionStatement”,expression:to_moz(M.body)}});def_to_moz(AST_SwitchBranch,function
To_Moz_SwitchCase(M){return{type:“SwitchCase”,test:to_moz(M.expression),consequent:M.body.map(to_moz)}});def_to_moz(AST_Try,function
To_Moz_TryStatement(M){return{type:“TryStatement”,block:to_moz_block(M),handler:to_moz(M.bcatch),guardedHandlers:[],finalizer:to_moz(M.bfinally)}});def_to_moz(AST_Catch,function
To_Moz_CatchClause(M){return{type:“CatchClause”,param:to_moz(M.argname),guard:null,body:to_moz_block(M)}});def_to_moz(AST_Definitions,function
To_Moz_VariableDeclaration(M){return{type:“VariableDeclaration”,kind:M
instanceof
AST_Const?“const”:“var”,declarations:M.definitions.map(to_moz)}});def_to_moz(AST_Sequence,function
To_Moz_SequenceExpression(M){return{type:“SequenceExpression”,expressions:M.expressions.map(to_moz)}});def_to_moz(AST_PropAccess,function
To_Moz_MemberExpression(M){var isComputed=M instanceof
AST_Sub;return{type:“MemberExpression”,object:to_moz(M.expression),computed:isComputed,property:isComputed?to_moz(M.property):{type:“Identifier”,name:M.property}}});def_to_moz(AST_Unary,function
To_Moz_Unary(M){return{type:M.operator==“++”||M.operator==“–”?“UpdateExpression”:“UnaryExpression”,operator:M.operator,prefix:M
instanceof
AST_UnaryPrefix,argument:to_moz(M.expression)}});def_to_moz(AST_Binary,function
To_Moz_BinaryExpression(M){return{type:M.operator==“&&”||M.operator==“||”?“LogicalExpression”:“BinaryExpression”,left:to_moz(M.left),operator:M.operator,right:to_moz(M.right)}});def_to_moz(AST_Array,function
To_Moz_ArrayExpression(M){return{type:“ArrayExpression”,elements:M.elements.map(to_moz)}});def_to_moz(AST_Object,function
To_Moz_ObjectExpression(M){return{type:“ObjectExpression”,properties:M.properties.map(to_moz)}});def_to_moz(AST_ObjectProperty,function
To_Moz_Property(M){var key={type:“Literal”,value:M.key instanceof
AST_SymbolMethod?M.key.name:M.key};var kind;if(M instanceof
AST_ObjectKeyVal){kind=“init”}else if(M instanceof
AST_ObjectGetter){kind=“get”}else if(M instanceof
AST_ObjectSetter){kind=“set”}return{type:“Property”,kind:kind,key:key,value:to_moz(M.value)}});def_to_moz(AST_Symbol,function
To_Moz_Identifier(M){var
def=M.definition();return{type:“Identifier”,name:def?def.mangled_name||def.name:M.name}});def_to_moz(AST_RegExp,function
To_Moz_RegExpLiteral(M){var
value=M.value;return{type:“Literal”,value:value,raw:value.toString(),regex:{pattern:value.source,flags:value.toString().match(/*$/)[0]}}});def_to_moz(AST_Constant,function
To_Moz_Literal(M){var value=M.value;if(typeof
value===“number”&&(value<0||value===0&&1/value<0)){return{type:“UnaryExpression”,operator:“-”,prefix:true,argument:{type:“Literal”,value:-value,raw:M.start.raw}}}return{type:“Literal”,value:value,raw:M.start.raw}});def_to_moz(AST_Atom,function
To_Moz_Atom(M){return{type:“Identifier”,name:String(M.value)}});AST_Boolean.DEFMETHOD(“to_mozilla_ast”,AST_Constant.prototype.to_mozilla_ast);AST_Null.DEFMETHOD(“to_mozilla_ast”,AST_Constant.prototype.to_mozilla_ast);AST_Hole.DEFMETHOD(“to_mozilla_ast”,function
To_Moz_ArrayHole(){return
null});AST_Block.DEFMETHOD(“to_mozilla_ast”,AST_BlockStatement.prototype.to_mozilla_ast);AST_Lambda.DEFMETHOD(“to_mozilla_ast”,AST_Function.prototype.to_mozilla_ast);function
raw_token(moznode){if(moznode.type==“Literal”){return
moznode.raw!=null?moznode.raw:moznode.value+“”}}function
my_start_token(moznode){var
loc=moznode.loc,start=loc&&loc.start;var range=moznode.range;return
new AST_Token({file:loc&&loc.source,line:start&&start.line,col:start&&start.column,pos:range?range:moznode.start,endline:start&&start.line,endcol:start&&start.column,endpos:range?range:moznode.start,raw:raw_token(moznode)})}function
my_end_token(moznode){var loc=moznode.loc,end=loc&&loc.end;var
range=moznode.range;return new AST_Token({file:loc&&loc.source,line:end&&end.line,col:end&&end.column,pos:range?range:moznode.end,endline:end&&end.line,endcol:end&&end.column,endpos:range?range:moznode.end,raw:raw_token(moznode)})}function
map(moztype,mytype,propmap){var moz_to_me=“function
From_Moz_”moztype
“(M){n”;moz_to_me+=“return new
U2.”mytype.name
“({n”+“start: my_start_token(M),n”+“end:
my_end_token(M)”;var me_to_moz=“function
To_Moz_”moztype
“(M){n”;me_to_moz+=“return {n”+“type:
”+JSON.stringify(moztype);if(propmap)propmap.split(/s*,s*/).forEach(function(prop){var
m=/(+)(=|@|>|%)([a-z0-9$_]+)/i.exec(prop);if(!m)throw
new Error(“Can't understand property map: ”+prop);var moz=m,how=m,my=m;moz_to_me+=“,n”my
“:
”;me_to_moz+=“,n”moz
“:
”;switch(how){case“@”:moz_to_me+=“M.”moz
“.map(from_moz)”;me_to_moz+=“M.”my
“.map(to_moz)”;break;case“>”:moz_to_me+=“from_moz(M.”moz
“)”;me_to_moz+=“to_moz(M.”my
“)”;break;case“=”:moz_to_me+=“M.”+moz;me_to_moz+=“M.”+my;break;case“%”:moz_to_me+=“from_moz(M.”moz
“).body”;me_to_moz+=“to_moz_block(M)”;break;default:throw
new Error(“Can't understand operator in propmap:
”+prop)}});moz_to_me+=“n})n}”;me_to_moz+=“n}n}”;moz_to_me=new
Function(“U2”,“my_start_token”,“my_end_token”,“from_moz”,“return(”moz_to_me
“)”)(exports,my_start_token,my_end_token,from_moz);me_to_moz=new
Function(“to_moz”,“to_moz_block”,“to_moz_scope”,“return(”me_to_moz“)”)(to_moz,to_moz_block,to_moz_scope);MOZ_TO_ME=moz_to_me;def_to_moz(mytype,me_to_moz)}var
FROM_MOZ_STACK=null;function from_moz(node){FROM_MOZ_STACK.push(node);var
ret=node!=null?MOZ_TO_ME(node):null;FROM_MOZ_STACK.pop();return
ret}AST_Node.from_mozilla_ast=function(node){var
save_stack=FROM_MOZ_STACK;FROM_MOZ_STACK=[];var
ast=from_moz(node);FROM_MOZ_STACK=save_stack;return ast};function
set_moz_loc(mynode,moznode,myparent){var start=mynode.start;var
end=mynode.end;if(start.pos!=null&&end.endpos!=null){moznode.range=}if(start.line){moznode.loc={start:{line:start.line,column:start.col},end:end.endline?{line:end.endline,column:end.endcol}:null};if(start.file){moznode.loc.source=start.file}}return
moznode}function
def_to_moz(mytype,handler){mytype.DEFMETHOD(“to_mozilla_ast”,function(){return
set_moz_loc(this,handler(this))})}function to_moz(node){return
node!=null?node.to_mozilla_ast():null}function
to_moz_block(node){return{type:“BlockStatement”,body:node.body.map(to_moz)}}function
to_moz_scope(type,node){var body=node.body.map(to_moz);if(node.bodyinstanceof AST_SimpleStatement&&node.body.body instanceof
AST_String){body.unshift(to_moz(new AST_EmptyStatement(node.body)))}return{type:type,body:body}}})();
/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor. https://github.com/mishoo/UglifyJS2 -------------------------------- (C) --------------------------------- Author: Mihai Bazon <mihai.bazon@gmail.com> http://mihai.bazon.net/blog Distributed under the BSD license: Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *********************************************************************/
“use strict”;function find_builtins(reserved){var new_globals=;var
objects={};var global_ref=typeof
global===“object”?global:self;new_globals.forEach(function(new_global){objects=global_ref||new
Function});[“null”,“true”,“false”,“Infinity”,“-Infinity”,“undefined”].forEach(add);.forEach(function(ctor){Object.getOwnPropertyNames(ctor).map(add);if(ctor.prototype){Object.getOwnPropertyNames(ctor.prototype).map(add)}});function
add(name){push_uniq(reserved,name)}}function
reserve_quoted_keys(ast,reserved){function
add(name){push_uniq(reserved,name)}ast.walk(new
TreeWalker(function(node){if(node instanceof
AST_ObjectKeyVal&&node.quote){add(node.key)}else if(node instanceof
AST_ObjectProperty&&node.quote){add(node.key.name)}else if(node
instanceof AST_Sub){addStrings(node.property,add)}}))}function
addStrings(node,add){node.walk(new TreeWalker(function(node){if(node
instanceof AST_Sequence){addStrings(node.tail_node(),add)}else if(node
instanceof AST_String){add(node.value)}else if(node instanceof
AST_Conditional){addStrings(node.consequent,add);addStrings(node.alternative,add)}return
true}))}function
mangle_properties(ast,options){options=defaults(options,{builtins:false,cache:null,debug:false,keep_quoted:false,only_cache:false,regex:null,reserved:null},true);var
reserved=options.reserved;if(!Array.isArray(reserved))reserved=[];if(!options.builtins)find_builtins(reserved);var
cname=-1;var
cache;if(options.cache){cache=options.cache.props;cache.each(function(mangled_name){push_uniq(reserved,mangled_name)})}else{cache=new
Dictionary}var regex=options.regex;var debug=options.debug!==false;var
debug_name_suffix;if(debug){debug_name_suffix=options.debug===true?“”:options.debug}var
names_to_mangle=[];var unmangleable=[];ast.walk(new
TreeWalker(function(node){if(node instanceof
AST_ObjectKeyVal){add(node.key)}else if(node instanceof
AST_ObjectProperty){add(node.key.name)}else if(node instanceof
AST_Dot){add(node.property)}else if(node instanceof
AST_Sub){addStrings(node.property,add)}}));return ast.transform(new
TreeTransformer(function(node){if(node instanceof
AST_ObjectKeyVal){node.key=mangle(node.key)}else if(node instanceof
AST_ObjectProperty){node.key.name=mangle(node.key.name)}else if(node
instanceof AST_Dot){node.property=mangle(node.property)}else
if(!options.keep_quoted&&node instanceof
AST_Sub){node.property=mangleStrings(node.property)}}));function
can_mangle(name){if(unmangleable.indexOf(name)>=0)return
false;if(reserved.indexOf(name)>=0)return
false;if(options.only_cache){return cache.has(name)}if(/^-?+(.[0-9]+)?(e[0-9]+)?$/.test(name))return false;return
true}function
should_mangle(name){if(regex&&!regex.test(name))return
false;if(reserved.indexOf(name)>=0)return false;return
cache.has(name)||names_to_mangle.indexOf(name)>=0}function
add(name){if(can_mangle(name))push_uniq(names_to_mangle,name);if(!should_mangle(name)){push_uniq(unmangleable,name)}}function
mangle(name){if(!should_mangle(name)){return name}var
mangled=cache.get(name);if(!mangled){if(debug){var
debug_mangled=“_$”name
“$”debug_name_suffix
“_”;if(can_mangle(debug_mangled)){mangled=debug_mangled}}if(!mangled){do{mangled=base54(++cname)}while(!can_mangle(mangled))}cache.set(name,mangled)}return
mangled}function mangleStrings(node){return node.transform(new
TreeTransformer(function(node){if(node instanceof AST_Sequence){var last=node.expressions.length-1;node.expressions=mangleStrings(node.expressions)}else if(node instanceof
AST_String){node.value=mangle(node.value)}else if(node instanceof
AST_Conditional){node.consequent=mangleStrings(node.consequent);node.alternative=mangleStrings(node.alternative)}return
node}))}}“use strict”;var to_ascii=typeof
atob==“undefined”?function(b64){return new
Buffer(b64,“base64”).toString()}:atob;var to_base64=typeof
btoa==“undefined”?function(str){return new
Buffer(str).toString(“base64”)}:btoa;function read_source_map(code){var
match=/n//#
sourceMappingURL=data:application/json(;.*?)?;base64,(.*)/.exec(code);if(!match){AST_Node.warn(“inline
source map not found”);return null}return to_ascii(match)}function set_shorthand(name,options,keys){if(options){keys.forEach(function(key){if(options){if(typeof options!=“object”)options={};if(!(name in options))options[name]=options}})}}function
init_cache(cache){if(!cache)return;if(!(“props”in cache)){cache.props=new
Dictionary}else if(!(cache.props instanceof
Dictionary)){cache.props=Dictionary.fromObject(cache.props)}}function
to_json(cache){return{props:cache.props.toObject()}}function
minify(files,options){var
warn_function=AST_Node.warn_function;try{options=defaults(options,{compress:{},ecma:undefined,ie8:false,keep_classnames:undefined,keep_fnames:false,mangle:{},nameCache:null,output:{},parse:{},rename:undefined,safari10:false,sourceMap:false,timings:false,toplevel:false,warnings:false,wrap:false},true);var
timings=options.timings&&{start:Date.now()};if(options.keep_classnames===undefined){options.keep_classnames=options.keep_fnames}if(options.rename===undefined){options.rename=options.compress&&options.mangle}set_shorthand(“ecma”,options,);set_shorthand(“ie8”,options,);set_shorthand(“keep_classnames”,options,);set_shorthand(“keep_fnames”,options,);set_shorthand(“safari10”,options,);set_shorthand(“toplevel”,options,);set_shorthand(“warnings”,options,);var
quoted_props;if(options.mangle){options.mangle=defaults(options.mangle,{cache:options.nameCache&&(options.nameCache.vars||{}),eval:false,ie8:false,keep_classnames:false,keep_fnames:false,properties:false,reserved:[],safari10:false,toplevel:false},true);if(options.mangle.properties){if(typeof
options.mangle.properties!=“object”){options.mangle.properties={}}if(options.mangle.properties.keep_quoted){quoted_props=options.mangle.properties.reserved;if(!Array.isArray(quoted_props))quoted_props=[];options.mangle.properties.reserved=quoted_props}if(options.nameCache&&!(“cache”in
options.mangle.properties)){options.mangle.properties.cache=options.nameCache.props||{}}}init_cache(options.mangle.cache);init_cache(options.mangle.properties.cache)}if(options.sourceMap){options.sourceMap=defaults(options.sourceMap,{content:null,filename:null,includeSources:false,root:null,url:null},true)}var
warnings=[];if(options.warnings&&!AST_Node.warn_function){AST_Node.warn_function=function(warning){warnings.push(warning)}}if(timings)timings.parse=Date.now();var
toplevel;if(files instanceof AST_Toplevel){toplevel=files}else{if(typeof
files==“string”){files=}options.parse=options.parse||{};options.parse.toplevel=null;for(var
name in files)if(HOP(files,name)){options.parse.filename=name;options.parse.toplevel=parse(files,options.parse);if(options.sourceMap&&options.sourceMap.content==“inline”){if(Object.keys(files).length>1)throw
new Error(“inline source map only works with singular input”);options.sourceMap.content=read_source_map(files)}}toplevel=options.parse.toplevel}if(quoted_props){reserve_quoted_keys(toplevel,quoted_props)}if(options.wrap){toplevel=toplevel.wrap_commonjs(options.wrap)}if(timings)timings.rename=Date.now();if(0&&options.rename){toplevel.figure_out_scope(options.mangle);toplevel.expand_names(options.mangle)}if(timings)timings.compress=Date.now();if(options.compress)toplevel=new
Compressor(options.compress).compress(toplevel);if(timings)timings.scope=Date.now();if(options.mangle)toplevel.figure_out_scope(options.mangle);if(timings)timings.mangle=Date.now();if(options.mangle){base54.reset();toplevel.compute_char_frequency(options.mangle);toplevel.mangle_names(options.mangle)}if(timings)timings.properties=Date.now();if(options.mangle&&options.mangle.properties){toplevel=mangle_properties(toplevel,options.mangle.properties)}if(timings)timings.output=Date.now();var
result={};if(options.output.ast){result.ast=toplevel}if(!HOP(options.output,“code”)||options.output.code){if(options.sourceMap){if(typeof
options.sourceMap.content==“string”){options.sourceMap.content=JSON.parse(options.sourceMap.content)}options.output.source_map=SourceMap({file:options.sourceMap.filename,orig:options.sourceMap.content,root:options.sourceMap.root});if(options.sourceMap.includeSources){if(files
instanceof AST_Toplevel){throw new Error(“original source content
unavailable”)}else for(var name in files)if(HOP(files,name)){options.output.source_map.get().setSourceContent(name,files)}}}delete
options.output.ast;delete options.output.code;var
stream=OutputStream(options.output);toplevel.print(stream);result.code=stream.get();if(options.sourceMap){result.map=options.output.source_map.toString();if(options.sourceMap.url==“inline”){result.code+=“n//#
sourceMappingURL=data:application/json;charset=utf-8;base64,”+to_base64(result.map)}else
if(options.sourceMap.url){result.code+=“n//#
sourceMappingURL=”+options.sourceMap.url}}}if(options.nameCache&&options.mangle){if(options.mangle.cache)options.nameCache.vars=to_json(options.mangle.cache);if(options.mangle.properties&&options.mangle.properties.cache){options.nameCache.props=to_json(options.mangle.properties.cache)}}if(timings){timings.end=Date.now();result.timings={parse:.001*(timings.rename-timings.parse),rename:.001*(timings.compress-timings.rename),compress:.001*(timings.scope-timings.compress),scope:.001*(timings.mangle-timings.scope),mangle:.001*(timings.properties-timings.mangle),properties:.001*(timings.output-timings.properties),output:.001*(timings.end-timings.output),total:.001*(timings.end-timings.start)}}if(warnings.length){result.warnings=warnings}return
result}catch(ex){return{error:ex}}finally{AST_Node.warn_function=warn_function}}exports=Dictionary;exports=TreeWalker;exports=TreeTransformer;exports=minify;exports=parse;exports=push_uniq})(typeof
UglifyJS==“undefined”?UglifyJS={}:UglifyJS);