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Class: Opal::Nodes::ForNode

Inherits:
Base
  • Object
  • Base
  • Opal::Nodes::ForNode
show all
Defined in:
opal/lib/opal/nodes/for.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

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

#compileObject

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# File 'opal/lib/opal/nodes/for.rb', line 10
def compile
 with_temp do |loop_var|
 if args_sexp.type == :array
 assign = s(:masgn, args_sexp)
 assign << s(:to_ary, s(:js_tmp, loop_var))
 else
 assign = args_sexp << s(:js_tmp, loop_var)
 end
 if body_sexp
 if body_sexp.first == :block
 body_sexp.insert 1, assign
 assign = body_sexp
 else
 assign = s(:block, assign, body_sexp)
 end
 end
 assign.children.each do |sexp|
 case sexp[0]
 when :lasgn
 add_local sexp[1]
 when :masgn
 if sexp[1][0] == :array
 sexp[1][1].each do |sexp|
 add_local sexp[1] if sexp[0] == :lasgn
 end
 end
 end
 end
 iter = s(:iter, s(:lasgn, loop_var), assign)
 sexp = s(:call, value, :each, s(:arglist), iter)
 push expr(sexp)
 end
end

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