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84 lines
2.3 KiB
Ruby
84 lines
2.3 KiB
Ruby
require 'sass/tree/node'
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module Sass::Tree
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# A static node representing a Sass comment (silent or loud).
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#
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# @see Sass::Tree
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class CommentNode < Node
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# The lines of text nested beneath the comment.
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#
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# @return [Array<Sass::Engine::Line>]
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attr_accessor :lines
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# The text on the same line as the comment starter.
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#
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# @return [String]
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attr_accessor :value
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# Whether or not the comment is silent (that is, doesn't output to CSS).
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#
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# @return [Boolean]
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attr_accessor :silent
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# @param value [String] See \{#value}
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# @param silent [Boolean] See \{#silent}
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def initialize(value, silent)
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@lines = []
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@value = value[2..-1].strip
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@silent = silent
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super()
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end
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# Compares the contents of two comments.
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#
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# @param other [Object] The object to compare with
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# @return [Boolean] Whether or not this node and the other object
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# are the same
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def ==(other)
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self.class == other.class && value == other.value && silent == other.silent && lines == other.lines
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end
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# Computes the CSS for the comment.
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#
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# Returns `nil` if this is a silent comment
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# or the current style doesn't render comments.
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#
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# @overload to_s(tabs = 0)
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# @param tabs [Fixnum] The level of indentation for the CSS
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# @return [String, nil] The resulting CSS
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# @see #invisible?
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def to_s(tabs = 0, _ = nil)
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return if invisible?
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spaces = ' ' * (tabs - 1)
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content = (value.split("\n") + lines.map {|l| l.text})
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return spaces + "/* */" if content.empty?
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content.map! {|l| (l.empty? ? "" : " ") + l}
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content.first.gsub!(/^ /, '')
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content.last.gsub!(%r{ ?\*/ *$}, '')
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spaces + "/* " + content.join(style == :compact ? '' : "\n#{spaces} *") + " */"
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end
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# Returns `true` if this is a silent comment
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# or the current style doesn't render comments.
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#
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# @return [Boolean]
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def invisible?
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style == :compressed || @silent
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end
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protected
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# Removes this node from the tree if it's a silent comment.
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#
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# @param environment [Sass::Environment] The lexical environment containing
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# variable and mixin values
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# @return [Tree::Node, Array<Tree::Node>] The resulting static nodes
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# @see Sass::Tree
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def _perform(environment)
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return [] if @silent
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self
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end
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end
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end
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