Class: Sass::Script::Interpolation

Inherits:
Node
  • Object
show all
Defined in:
lib/sass/script/interpolation.rb

Overview

A SassScript object representing #{} interpolation outside a string.

See Also:

Instance Attribute Summary

Attributes inherited from Node

#line, #options

Instance Method Summary collapse

Methods inherited from Node

#dasherize, #opts, #perform

Constructor Details

#initialize(before, mid, after, wb, wa, originally_text = false) ⇒ Interpolation

Interpolation in a property is of the form before #{mid} after.

Parameters:

  • before (Node) —

    The SassScript before the interpolation

  • mid (Node) —

    The SassScript within the interpolation

  • after (Node) —

    The SassScript after the interpolation

  • wb (Boolean) —

    Whether there was whitespace between before and #{

  • wa (Boolean) —

    Whether there was whitespace between } and after

  • originally_text (Boolean) (defaults to: false) —

    Whether the original format of the interpolation was plain text, not an interpolation. This is used when converting back to SassScript.



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# File 'lib/sass/script/interpolation.rb', line 17

def initialize(before, mid, after, wb, wa, originally_text = false)
  @before = before
  @mid = mid
  @after = after
  @whitespace_before = wb
  @whitespace_after = wa
  @originally_text = originally_text
end

Instance Method Details

#_perform(environment) ⇒ Sass::Script::String (protected)

Evaluates the interpolation.

Parameters:

  • environment (Sass::Environment) —

    The environment in which to evaluate the SassScript

Returns:



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# File 'lib/sass/script/interpolation.rb', line 68

def _perform(environment)
  res = ""
  res << @before.perform(environment).to_s if @before
  res << " " if @before && @whitespace_before
  val = @mid.perform(environment)
  res << (val.is_a?(Sass::Script::String) ? val.value : val.to_s)
  res << " " if @after && @whitespace_after
  res << @after.perform(environment).to_s if @after
  opts(Sass::Script::String.new(res))
end

#children ⇒ Array<Node>

Returns the three components of the interpolation, before, mid, and after.

Returns:

See Also:



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# File 'lib/sass/script/interpolation.rb', line 49

def children
  [@before, @mid, @after].compact
end

#deep_copy

See Also:



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# File 'lib/sass/script/interpolation.rb', line 54

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

#inspect ⇒ String

Returns A human-readable s-expression representation of the interpolation.

Returns:

  • (String) —

    A human-readable s-expression representation of the interpolation



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# File 'lib/sass/script/interpolation.rb', line 27

def inspect
  "(interpolation #{@before.inspect} #{@mid.inspect} #{@after.inspect})"
end

#to_sass(opts = {})

See Also:



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# File 'lib/sass/script/interpolation.rb', line 32

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