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

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, #class_variable_owner, #closest_module_node, #comments, #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

#conditional_send, #current_indent, #empty_line, #indent, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #mid_to_jsid, #property, #valid_name?

Constructor Details

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

Instance Method Details

#initialize_kw_args_if_needed ⇒ Object 



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# File 'opal/lib/opal/nodes/args/initialize_kwargs.rb', line 12

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