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Contents
module Sass::Script
# The abstract superclass for SassScript parse tree nodes.
#
# Use \{#perform} to evaluate a parse tree.
class Node
# The options hash for this node.
#
# @return [{Symbol => Object}]
attr_reader :options
# Sets the options hash for this node,
# as well as for all child nodes.
# See {file:SASS_REFERENCE.md#sass_options the Sass options documentation}.
#
# @param options [{Symbol => Object}] The options
def options=(options)
@options = options
children.each {|c| c.options = options}
end
# Evaluates the node.
#
# @param environment [Sass::Environment] The environment in which to evaluate the SassScript
# @return [Literal] The SassScript object that is the value of the SassScript
def perform(environment)
raise NotImplementedError.new("All subclasses of Sass::Script::Node must override #perform.")
end
# Returns all child nodes of this node.
#
# @return [Array<Node>]
def children
raise NotImplementedError.new("All subclasses of Sass::Script::Node must override #children.")
end
end
end
Version data entries
31 entries across 31 versions & 1 rubygems