Class: Opal::Nodes::ConstNode

Constant Summary collapse

OPTIMIZED_ACCESS_CONSTS =

%i[BasicObjectObjectModuleClassOpalKernelNilClass].freeze

Instance Attribute Summary

Attributes inherited from Base

#compiler , #sexp , #type

Attributes included from Opal::Nodes::Closure::NodeSupport

#closure

Instance Method Summary collapse

• #compile ⇒ Object
• #magical_data_const? ⇒ Boolean

  Ruby has a magical const DATA that should be processed in a different way: 1.

• #optimized_access? ⇒ Boolean

  For a certain case of calls like ::Opal.coerce_to? we can optimize the calls.

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_empty , #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 Opal::Nodes::Closure::NodeSupport

#closure_is? , #compile_catcher , #generate_thrower , #generate_thrower_without_catcher , #in_closure , #pop_closure , #push_closure , #select_closure , #thrower

Methods included from Helpers

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

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# File 'opal/lib/opal/nodes/constants.rb', line 12
def compile
 if magical_data_const?
 push('$__END__')
 elsif optimized_access?
 helper :"#{name}"
 push "$#{name}"
 elsif const_scope == s(:cbase)
 push "#{top_scope.absolute_const}('#{name}')"
 elsif const_scope
 push "#{top_scope.absolute_const}(", recv(const_scope), ", '#{name}')"
 elsif compiler.eval?
 push "#{scope.relative_access}('#{name}')"
 else
 push "#{scope.relative_access}('#{name}')"
 end
end

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# File 'opal/lib/opal/nodes/constants.rb', line 35
def magical_data_const?
 const_scope.nil? && name == :DATA && compiler.eof_content
end

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# File 'opal/lib/opal/nodes/constants.rb', line 46
def optimized_access?
 const_scope == s(:cbase) && OPTIMIZED_ACCESS_CONSTS .include?(name)
end