| Class | Sass::Script::Funcall |
| In: |
lib/sass/script/funcall.rb
|
| Parent: | Node |
A SassScript parse node representing a function call.
A function call either calls one of the functions in {Script::Functions}, or if no function with the given name exists it returns a string representation of the function call.
| args | [R] |
The arguments to the function.
@return [Array<Script::Node>] |
| name | [R] |
The name of the function.
@return [String] |
@param name [String] See \{name} @param name [Array<Script::Node>] See \{args}
# File lib/sass/script/funcall.rb, line 31
31: def initialize(name, args)
32: @name = name
33: @args = args
34: super()
35: end
Returns the arguments to the function.
@return [Array<Node>] @see Node#children
# File lib/sass/script/funcall.rb, line 51
51: def children
52: @args
53: end
Don‘t set the context for child nodes if this is `url()`, since `url()` allows quoted strings.
@param context [Symbol] @see Node#context=
# File lib/sass/script/funcall.rb, line 25
25: def context=(context)
26: super unless @name == "url"
27: end
@see Node#to_sass
# File lib/sass/script/funcall.rb, line 43
43: def to_sass(opts = {})
44: "#{dasherize(name, opts)}(#{args.map {|a| a.to_sass(opts)}.join(', ')})"
45: end
Evaluates the function call.
@param environment [Sass::Environment] The environment in which to evaluate the SassScript @return [Literal] The SassScript object that is the value of the function call @raise [Sass::SyntaxError] if the function call raises an ArgumentError
# File lib/sass/script/funcall.rb, line 62
62: def _perform(environment)
63: args = self.args.map {|a| a.perform(environment)}
64: ruby_name = name.gsub('-', '_')
65: unless Haml::Util.has?(:public_instance_method, Functions, ruby_name) && ruby_name !~ /^__/
66: return Script::String.new("#{name}(#{args.map {|a| a.perform(environment)}.join(', ')})")
67: end
68:
69: result = Functions::EvaluationContext.new(environment.options).send(ruby_name, *args)
70: result.options = environment.options
71: return result
72: rescue ArgumentError => e
73: raise e unless e.backtrace.any? {|t| t =~ /:in `(block in )?(#{name}|perform)'$/}
74: raise Sass::SyntaxError.new("#{e.message} for `#{name}'")
75: end