lib/sass/selector/comma_sequence.rb
module Sass module Selector # A comma-separated sequence of selectors. class CommaSequence < AbstractSequence # The comma-separated selector sequences # represented by this class. # # @return [Array<Sequence>] attr_reader :members # @param seqs [Array<Sequence>] See \{#members} def initialize(seqs) @members = seqs end # Resolves the {Parent} selectors within this selector # by replacing them with the given parent selector, # handling commas appropriately. # # @param super_cseq [CommaSequence] The parent selector # @return [CommaSequence] This selector, with parent references resolved # @raise [Sass::SyntaxError] If a parent selector is invalid def resolve_parent_refs(super_cseq) if super_cseq.nil? if @members.any? do |sel| sel.members.any? do |sel_or_op| sel_or_op.is_a?(SimpleSequence) && sel_or_op.members.any? {|ssel| ssel.is_a?(Parent)} end end raise Sass::SyntaxError.new("Base-level rules cannot contain the parent-selector-referencing character '&'.") end return self end CommaSequence.new( super_cseq.members.map do |super_seq| @members.map {|seq| seq.resolve_parent_refs(super_seq)} end.flatten) end # Non-destrucively extends this selector # with the extensions specified in a hash # (which should be populated via {Sass::Tree::Node#cssize}). # # @todo Link this to the reference documentation on `@extend` # when such a thing exists. # # @param extends [Haml::Util::SubsetMap{Selector::Simple => Selector::Sequence}] # The extensions to perform on this selector # @return [CommaSequence] A copy of this selector, # with extensions made according to `extends` def do_extend(extends) CommaSequence.new(members.map {|seq| seq.do_extend(extends)}.flatten) end # Returns a string representation of the sequence. # This is basically the selector string. # # @return [String] def inspect members.map {|m| m.inspect}.join(", ") end private def _hash members.hash end def _eql?(other) other.class == self.class && other.members.eql?(self.members) end end end end