class RKelly::JS::Function

Attributes

arguments[R]
body[R]

Public Class Methods

create(*args) click to toggle source
# File lib/rkelly/js/function.rb, line 5
def create(*args)
  if args.length > 0
    parser = RKelly::Parser.new
    body = args.pop
    tree = parser.parse("function x(#{args.join(',')}) { #{body} }")
    func = tree.value.first
    self.new(func.function_body, func.arguments)
  else
    self.new
  end
end
new(body = nil, arguments = []) click to toggle source
Calls superclass method RKelly::JS::Base.new
# File lib/rkelly/js/function.rb, line 19
def initialize(body = nil, arguments = [])
  super()
  @body = body
  @arguments = arguments
  self['prototype'] = JS::FunctionPrototype.new(self)
  self['toString'] = :undefined
  self['length'] = arguments.length
end

Public Instance Methods

js_call(scope_chain, *params) click to toggle source
# File lib/rkelly/js/function.rb, line 28
def js_call(scope_chain, *params)
  arguments.each_with_index { |name, i|
    scope_chain[name.value] = params[i] || RKelly::Runtime::UNDEFINED
  }
  function_visitor  = RKelly::Visitors::FunctionVisitor.new(scope_chain)
  eval_visitor      = RKelly::Visitors::EvaluationVisitor.new(scope_chain)
  body.accept(function_visitor) if body
  body.accept(eval_visitor) if body
end