class Sass::Script::Interpolation - sass-3.2.19 Documentation

# class Sass::Script::Interpolation

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

@see StringInterpolation

### Public Class Methods

new(before, mid, after, wb, wa, originally_text = false) click to toggle source

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

@param before [Node] The SassScript before the interpolation @param mid [Node] The SassScript within the interpolation @param after [Node] The SassScript after the interpolation @param wb [Boolean] Whether there was whitespace between `before` and `#{` @param wa [Boolean] Whether there was whitespace between `}` and `after` @param originally_text [Boolean]

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

    # 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

### Public Instance Methods

children() click to toggle source

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

@return [Array<Node>] @see initialize @see Sass::Script::Node#children

    # File lib/sass/script/interpolation.rb, line 49
    def children
      [@before, @mid, @after].compact
    end

deep_copy() click to toggle source

@see Sass::Script::Node#deep_copy

    # 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() click to toggle source

@return [String] A human-readable s-expression representation of the interpolation

    # File lib/sass/script/interpolation.rb, line 27
    def inspect
      "(interpolation #{@before.inspect} #{@mid.inspect} #{@after.inspect})"
    end

to_sass(opts = {}) click to toggle source

@see Sass::Script::Node#to_sass

    # 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

### Protected Instance Methods

_perform(environment) click to toggle source

Evaluates the interpolation.

@param environment [Sass::Environment] The environment in which to evaluate the SassScript @return [Sass::Script::String] The SassScript string that is the value of the interpolation

    # 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