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Size: 1.18 KB
Versions: 25
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Contents
module Sass
module Tree
# A dynamic node representing a variable definition.
#
# @see Sass::Tree
class VariableNode < Node
# @param name [String] The name of the variable
# @param expr [Script::Node] The parse tree for the initial variable value
# @param guarded [Boolean] Whether this is a guarded variable assignment (`||=`)
def initialize(name, expr, guarded)
@name = name
@expr = expr
@guarded = guarded
super()
end
protected
def to_src(tabs, opts, fmt)
"#{' ' * tabs}$#{dasherize(@name, opts)}: #{@expr.to_sass(opts)}#{' !default' if @guarded}#{semi fmt}\n"
end
# Loads the new variable value into the environment.
#
# @param environment [Sass::Environment] The lexical environment containing
# variable and mixin values
def _perform(environment)
return [] if @guarded && !environment.var(@name).nil?
val = @expr.perform(environment)
if @expr.context == :equals && val.is_a?(Sass::Script::String)
val = Sass::Script::String.new(val.value)
end
environment.set_var(@name, val)
[]
end
end
end
end
Version data entries
25 entries across 25 versions & 2 rubygems