Class: Sass::Script::Tree::Interpolation

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

Overview

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

See Also:

Instance Attribute Summary collapse

Attributes inherited from Node

#filename, #line, #options, #source_range

Instance Method Summary collapse

Methods inherited from Node

#dasherize, #force_division!, #opts, #perform

Constructor Details

#initialize(before, mid, after, wb, wa, opts = {}) ⇒ Interpolation

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



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# File 'lib/sass/script/tree/interpolation.rb', line 50

def initialize(before, mid, after, wb, wa, opts = {})
  @before = before
  @mid = mid
  @after = after
  @whitespace_before = wb
  @whitespace_after = wa
  @originally_text = opts[:originally_text] || false
  @warn_for_color = opts[:warn_for_color] || false
  @deprecation = opts[:deprecation] || :none
end

Instance Attribute Details

#after ⇒ Node (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 13

def after
  @after
end

#before ⇒ Node (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 7

def before
  @before
end

#deprecation ⇒ Symbol (readonly)

The type of interpolation deprecation for this node.

This can be :none, indicating that the node doesn't use deprecated interpolation; :immediate, indicating that a deprecation warning should be emitted as soon as possible; or :potential, indicating that a deprecation warning should be emitted if the resulting string is used in a way that would distinguish it from a list.



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# File 'lib/sass/script/tree/interpolation.rb', line 39

def deprecation
  @deprecation
end

#mid ⇒ Node (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 10

def mid
  @mid
end

#originally_text ⇒ Boolean (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 24

def originally_text
  @originally_text
end

#warn_for_color ⇒ Boolean (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 28

def warn_for_color
  @warn_for_color
end

#whitespace_after ⇒ Boolean (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 19

def whitespace_after
  @whitespace_after
end

#whitespace_before ⇒ Boolean (readonly) 



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# File 'lib/sass/script/tree/interpolation.rb', line 16

def whitespace_before
  @whitespace_before
end

Instance Method Details

#children ⇒ Array<Node>

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

See Also:



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# File 'lib/sass/script/tree/interpolation.rb', line 99

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

#deep_copy

See Also:



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# File 'lib/sass/script/tree/interpolation.rb', line 104

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 



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# File 'lib/sass/script/tree/interpolation.rb', line 62

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

#to_quoted_equivalent ⇒ Sass::Script::Tree::Node

Returns an unquote() expression that will evaluate to the same value as this interpolation.



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# File 'lib/sass/script/tree/interpolation.rb', line 85

def to_quoted_equivalent
  Funcall.new(
    "unquote",
    [to_string_interpolation(self)],
    Sass::Util::NormalizedMap.new,
    nil,
    nil)
end

#to_sass(opts = {})

See Also:



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# File 'lib/sass/script/tree/interpolation.rb', line 67

def to_sass(opts = {})
  return to_quoted_equivalent.to_sass if deprecation == :immediate

  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

#to_string_interpolation(node_or_interp) ⇒ Sass::Script::Tree::StringInterpolation (protected)

Converts a script node into a corresponding string interpolation expression.



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# File 'lib/sass/script/tree/interpolation.rb', line 119

def to_string_interpolation(node_or_interp)
  unless node_or_interp.is_a?(Interpolation)
    node = node_or_interp
    return string_literal(node.value.to_s) if node.is_a?(Literal)
    if node.is_a?(StringInterpolation)
      return concat(string_literal(node.quote), concat(node, string_literal(node.quote)))
    end
    return StringInterpolation.new(string_literal(""), node, string_literal(""))
  end

  interp = node_or_interp
  after_string_or_interp =
    if interp.after
      to_string_interpolation(interp.after)
    else
      string_literal("")
    end
  if interp.after && interp.whitespace_after
    after_string_or_interp = concat(string_literal(' '), after_string_or_interp)
  end

  mid_string_or_interp = to_string_interpolation(interp.mid)

  before_string_or_interp =
    if interp.before
      to_string_interpolation(interp.before)
    else
      string_literal("")
    end
  if interp.before && interp.whitespace_before
    before_string_or_interp = concat(before_string_or_interp, string_literal(' '))
  end

  concat(before_string_or_interp, concat(mid_string_or_interp, after_string_or_interp))
end