A SassScript object representing `#{}` interpolation outside a string.
@see StringInterpolation
@return [Boolean] Whether the original format of the interpolation was
plain text, not an interpolation. This is used when converting back to SassScript.
Interpolation in a property is of the form `before #{mid} after`.
@param before [Node] See {Interpolation#before} @param mid [Node] See {Interpolation#mid} @param after [Node] See {Interpolation#after} @param wb [Boolean] See {Interpolation#whitespace_before} @param wa [Boolean] See {Interpolation#whitespace_after} @param originally_text [Boolean] See {Interpolation#originally_text} @param warn_for_color [Boolean] See {Interpolation#warn_for_color} @comment
rubocop:disable ParameterLists
# File lib/sass/script/tree/interpolation.rb, line 41 def initialize(before, mid, after, wb, wa, originally_text = false, warn_for_color = false) # rubocop:enable ParameterLists @before = before @mid = mid @after = after @whitespace_before = wb @whitespace_after = wa @originally_text = originally_text @warn_for_color = warn_for_color end
Returns the three components of the interpolation, `before`, `mid`, and `after`.
@return [Array<Node>] @see initialize @see Node#children
# File lib/sass/script/tree/interpolation.rb, line 75 def children [@before, @mid, @after].compact end
@see Node#deep_copy
# File lib/sass/script/tree/interpolation.rb, line 80 def deep_copy node = dup node.instance_variable_set('@before', @before.deep_copy) if @before node.instance_variable_set('@mid', @mid.deep_copy) node.instance_variable_set('@after', @after.deep_copy) if @after node end
@return [String] A human-readable s-expression representation of the interpolation
# File lib/sass/script/tree/interpolation.rb, line 53 def inspect "(interpolation #{@before.inspect} #{@mid.inspect} #{@after.inspect})" end
@see Node#to_sass
# File lib/sass/script/tree/interpolation.rb, line 58 def to_sass(opts = {}) res = "" res << @before.to_sass(opts) if @before res << ' ' if @before && @whitespace_before res << '#{' unless @originally_text res << @mid.to_sass(opts) res << '}' unless @originally_text res << ' ' if @after && @whitespace_after res << @after.to_sass(opts) if @after res end
Evaluates the interpolation.
@param environment [Sass::Environment] The environment in which to evaluate the SassScript @return [Sass::Script::Value::String]
The SassScript string that is the value of the interpolation
# File lib/sass/script/tree/interpolation.rb, line 95 def _perform(environment) res = "" res << @before.perform(environment).to_s if @before res << " " if @before && @whitespace_before val = @mid.perform(environment) if @warn_for_color && val.is_a?(Sass::Script::Value::Color) && val.name alternative = Operation.new(Sass::Script::Value::String.new("", :string), @mid, :plus) Sass::Util.sass_warn WARNING on line #{line}, column #{source_range.start_pos.offset}#{" of #{filename}" if filename}:You probably don't mean to use the color value `#{val}' in interpolation here.It may end up represented as #{val.inspect}, which will likely produce invalid CSS.Always quote color names when using them as strings (for example, "#{val}").If you really want to use the color value here, use `#{alternative.to_sass}'. end res << val.to_s(:quote => :none) res << " " if @after && @whitespace_after res << @after.perform(environment).to_s if @after opts(Sass::Script::Value::String.new(res)) end
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