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Class: Opal::Nodes::WhenNode

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

#body_codeObject

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# File 'opal/lib/opal/nodes/case.rb', line 91
def body_code
 body || s(:nil)
end

#case_stmtObject

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# File 'opal/lib/opal/nodes/case.rb', line 87
def case_stmt
 compiler.case_stmt
end

#compileObject

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# File 'opal/lib/opal/nodes/case.rb', line 60
def compile
 push "if ("
 when_checks.each_with_index do |check, idx|
 push ' || ' unless idx == 0
 if check.type == :splat
 push "(function($splt) { for (var i = 0; i < $splt.length; i++) {"
 push "if ($splt[i]['$===']($case)) { return true; }"
 push "} return false; })(", expr(check[1]), ")"
 else
 if case_stmt[:cond]
 call = s(:call, check, :===, s(:arglist, s(:js_tmp, '$case')))
 push expr(call)
 else
 push js_truthy(check)
 end
 end
 end
 push ") {", process(body_code, @level), "}"
end

#when_checksObject

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# File 'opal/lib/opal/nodes/case.rb', line 83
def when_checks
 whens.children
end

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