Class: Opal::Nodes::InitializeKwargsNode

Inherits:
Base
  • Object
show all
Defined in:
opal/lib/opal/nodes/args/initialize_kwargs.rb

Overview

An abstract node responsible for validating keyword arguments in the post-splat list of arguments.

See Also:

Direct Known Subclasses

KwargNode, KwoptArgNode, KwrestArgNode

Constant Summary

Constants included from Helpers

Helpers::BASIC_IDENTIFIER_RULES, Helpers::ES3_RESERVED_WORD_EXCLUSIVE, Helpers::ES51_RESERVED_WORD, Helpers::IMMUTABLE_PROPS, Helpers::PROTO_SPECIAL_METHODS, Helpers::PROTO_SPECIAL_PROPS, Helpers::RESERVED_FUNCTION_NAMES

Instance Attribute Summary

Attributes inherited from Base

#compiler, #type

Instance Method Summary collapse

Methods inherited from Base

#add_gvar, #add_ivar, #add_local, #add_temp, #children, children, #compile, #compile_to_fragments, #error, #expr, #expr?, #expr_or_nil, #fragment, handle, handlers, #has_rescue_else?, #helper, #in_ensure, #in_ensure?, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #stmt, #stmt?, truthy_optimize?, #unshift, #while_loop, #with_temp, #wrap

Methods included from Helpers

#current_indent, #empty_line, #indent, #ivar, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #lvar_to_js, #mid_to_jsid, #property, #valid_ivar_name?, #valid_name?, #variable

Constructor Details

This class inherits a constructor from Opal::Nodes::Base

Instance Method Details

#initialize_kw_args_if_needed ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'opal/lib/opal/nodes/args/initialize_kwargs.rb', line 11

def initialize_kw_args_if_needed
  return if scope.kwargs_initialized

  helper :hash2

  line "if ($kwargs == null || !$kwargs.$$is_hash) {"
  line "  if ($kwargs == null) {"
  line "    $kwargs = $hash2([], {});"
  line "  } else {"
  line "    throw Opal.ArgumentError.$new('expected kwargs');"
  line "  }"
  line "}"

  scope.kwargs_initialized = true
end