class Prism::CapturePatternNode

Represents assigning to a local variable in pattern matching.

foo => [bar => baz]
       ^^^^^^^^^^^^

Attributes

target[R]

Represents the target of the capture.

foo => bar
^^^

value[R]

Represents the value to capture.

foo => bar
       ^^^

Public Class Methods

new(source, node_id, location, flags, value, target, operator_loc) click to toggle source

Initialize a new CapturePatternNode node.

# File lib/prism/node.rb, line 3645
def initialize(source, node_id, location, flags, value, target, operator_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @value = value
  @target = target
  @operator_loc = operator_loc
end

type() click to toggle source

Return a symbol representation of this node type. See Node::type.

# File lib/prism/node.rb, line 3740
def self.type
  :capture_pattern_node
end

Public Instance Methods

===(other) click to toggle source

Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.

# File lib/prism/node.rb, line 3746
def ===(other)
  other.is_a?(CapturePatternNode) &&
    (value === other.value) &&
    (target === other.target) &&
    (operator_loc.nil? == other.operator_loc.nil?)
end

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File lib/prism/node.rb, line 3656
def accept(visitor)
  visitor.visit_capture_pattern_node(self)
end

child_nodes() click to toggle source

def child_nodes: () -> Array

# File lib/prism/node.rb, line 3661
def child_nodes
  [value, target]
end

Also aliased as: deconstruct

comment_targets() click to toggle source

def comment_targets: () -> Array[Node | Location]

# File lib/prism/node.rb, line 3679
def comment_targets
  [value, target, operator_loc] #: Array[Prism::node | Location]
end

compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File lib/prism/node.rb, line 3674
def compact_child_nodes
  [value, target]
end

copy(node_id: self.node_id, location: self.location, flags: self.flags, value: self.value, target: self.target, operator_loc: self.operator_loc) click to toggle source

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?value: Prism::node, ?target: LocalVariableTargetNode, ?operator_loc: Location) -> CapturePatternNode

# File lib/prism/node.rb, line 3684
def copy(node_id: self.node_id, location: self.location, flags: self.flags, value: self.value, target: self.target, operator_loc: self.operator_loc)
  CapturePatternNode.new(source, node_id, location, flags, value, target, operator_loc)
end

deconstruct()

def deconstruct: () -> Array

Alias for: child_nodes

deconstruct_keys(keys) click to toggle source

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, value: Prism::node, target: LocalVariableTargetNode, operator_loc: Location }

# File lib/prism/node.rb, line 3692
def deconstruct_keys(keys)
  { node_id: node_id, location: location, value: value, target: target, operator_loc: operator_loc }
end

each_child_node() { |value| ... } click to toggle source

def each_child_node: () { (Prism::node) -> void } -> void | () -> Enumerator

# File lib/prism/node.rb, line 3666
def each_child_node
  return to_enum(:each_child_node) unless block_given?

  yield value
  yield target
end

inspect() click to toggle source

def inspect -> String

# File lib/prism/node.rb, line 3730
def inspect
  InspectVisitor.compose(self)
end

operator() click to toggle source

def operator: () -> String

# File lib/prism/node.rb, line 3725
def operator
  operator_loc.slice
end

operator_loc() click to toggle source

Represents the location of the => operator.

foo => bar
    ^^

# File lib/prism/node.rb, line 3712
def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

save_operator_loc(repository) click to toggle source

Save the operator_loc location using the given saved source so that it can be retrieved later.

# File lib/prism/node.rb, line 3720
def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

type() click to toggle source

Return a symbol representation of this node type. See Node#type.

# File lib/prism/node.rb, line 3735
def type
  :capture_pattern_node
end