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Versions: 25
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Contents
module Sass::Script::Tree
# A parse tree node representing a list literal. When resolved, this returns a
# {Sass::Tree::Value::List}.
class ListLiteral < Node
# The parse nodes for members of this list.
#
# @return [Array<Node>]
attr_reader :elements
# The operator separating the values of the list. Either `:comma` or
# `:space`.
#
# @return [Symbol]
attr_reader :separator
# Creates a new list literal.
#
# @param elements [Array<Node>] See \{#elements}
# @param separator [Symbol] See \{#separator}
def initialize(elements, separator)
@elements = elements
@separator = separator
end
# @see Node#children
def children; elements; end
# @see Node#to_sass
def to_sass(opts = {})
return "()" if elements.empty?
precedence = Sass::Script::Parser.precedence_of(separator)
elements.map do |v|
if v.is_a?(ListLiteral) && Sass::Script::Parser.precedence_of(v.separator) <= precedence
"(#{v.to_sass(opts)})"
else
v.to_sass(opts)
end
end.join(separator == :space ? ' ' : ', ')
end
# @see Node#deep_copy
def deep_copy
node = dup
node.instance_variable_set('@elements', elements.map {|e| e.deep_copy})
node
end
def inspect
"(#{elements.map {|e| e.inspect}.join(separator == :space ? ' ' : ', ')})"
end
protected
def _perform(environment)
list = Sass::Script::Value::List.new(
elements.map {|e| e.perform(environment)},
separator)
list.line = line
list.source_range = source_range
list.filename = filename
list.options = self.options
list
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems