| Class | Sass::Tree::MixinNode |
| In: |
lib/sass/tree/mixin_node.rb
|
| Parent: | Node |
A dynamic node representing a mixin include.
@see Sass::Tree
@param name [String] The name of the mixin @param args [Array<Script::Node>] The arguments to the mixin
# File lib/sass/tree/mixin_node.rb, line 10
10: def initialize(name, args)
11: @name = name
12: @args = args
13: super()
14: end
Runs the mixin.
@param environment [Sass::Environment] The lexical environment containing
variable and mixin values
@return [Array<Tree::Node>] The resulting static nodes @raise [Sass::SyntaxError] if there is no mixin with the given name @raise [Sass::SyntaxError] if an incorrect number of arguments was passed @see Sass::Tree
# File lib/sass/tree/mixin_node.rb, line 26
26: def _perform(environment)
27: raise Sass::SyntaxError.new("Undefined mixin '#{@name}'.", @line) unless mixin = environment.mixin(@name)
28:
29: raise Sass::SyntaxError.new("Mixin \#{@name} takes \#{mixin.args.size} argument\#{'s' if mixin.args.size != 1}\n but \#{@args.size} \#{@args.size == 1 ? 'was' : 'were'} passed.\n".gsub("\n", "")) if mixin.args.size < @args.size
30:
31: environment = mixin.args.zip(@args).
32: inject(Sass::Environment.new(mixin.environment)) do |env, ((var, default), value)|
33: env.set_local_var(var.name,
34: if value
35: value.perform(environment)
36: elsif default
37: default.perform(env)
38: end)
39: raise Sass::SyntaxError.new("Mixin #{@name} is missing parameter #{var.inspect}.") unless env.var(var.name)
40: env
41: end
42: mixin.tree.map {|c| c.perform(environment)}.flatten
43: end