Class: Opal::Nodes::Args::EnsureKwargsAreKwargs

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

Overview

A utility node responsible for compiling a runtime validation for kwargs.

This node is used for both inline and post-kwargs

Instance Attribute Summary

Attributes inherited from Base

#compiler, #sexp, #type

Instance Method Summary collapse

Methods inherited from Base

#add_gvar, #add_ivar, #add_local, #add_temp, #children, children, #class_variable_owner, #class_variable_owner_nesting_level, #comments, #compile_to_fragments, #error, #expr, #expr?, #expr_or_nil, #fragment, handle, handlers, #has_rescue_else?, #helper, #in_ensure, #in_ensure?, #in_resbody, #in_resbody?, #in_rescue, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #source_location, #stmt, #stmt?, #top_scope, truthy_optimize?, #unshift, #while_loop, #with_temp, #wrap

Methods included from Helpers

#current_indent, #empty_line, #indent, #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

#compile ⇒ Object 



16
17
18
19
20
21
22
23
24
 
# File 'opal/lib/opal/nodes/args/ensure_kwargs_are_kwargs.rb', line 16

def compile
  helper :hash2

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