Class: Opal::Nodes::UndefNode

Inherits:

Base

Object
Base
Opal::Nodes::UndefNode

Defined in:: opal/lib/opal/nodes/definitions.rb

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

Instance Attribute Summary

Attributes inherited from Base

#compiler , #type

Instance Method Summary collapse

#compile ⇒ Object

Methods inherited from Base

#add_gvar , #add_ivar , #add_local , #add_temp , children , #children , #compile_to_fragments , #error , #expr , #expr? , #expr_or_nil , #fragment , handle , handlers , #helper , #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

#compile ⇒ `Object`

# File 'opal/lib/opal/nodes/definitions.rb', line 19
def compile
 children.each do |child|
 value = child[1]
 statements = []
 if child[0] == :js_return
 value = value[1]
 statements << expr(s(:js_return))
 end
 statements << "Opal.udef(self, '$#{value.to_s}');"
 if children.length > 1 && child != children.first
 line *statements
 else
 push *statements
 end
 end
end