32 lines
833 B
Ruby
32 lines
833 B
Ruby
require 'sass/tree/node'
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module Sass::Tree
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# A dynamic node representing a Sass `@while` loop.
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#
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# @see Sass::Tree
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class WhileNode < Node
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# @param expr [Script::Node] The parse tree for the continue expression
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def initialize(expr)
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@expr = expr
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super()
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end
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protected
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# Runs the child nodes until the continue expression becomes false.
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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 [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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children = []
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new_environment = Sass::Environment.new(environment)
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while @expr.perform(environment).to_bool
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children += perform_children(new_environment)
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end
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children
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end
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end
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end
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