Class: Opal::Nodes::Args::ExtractOptargNode
- Defined in:
- opal/lib/opal/nodes/args/extract_optarg.rb
Overview
Compiles extraction of a single inline optional argument def m(a = 1); end ^^^^^
This node doesn't exist in the original AST, InlineArgs rewriter creates it to simplify compilation
Sometimes the argument can't be inlined. In such cases InlineArgs rewriter replaces s(:optarg, :arg_name, ...default value...) to: s(:fakearg) + s(:extract_post_optarg, :arg_name, ...default value...)
Instance Attribute Summary
Attributes inherited from Base
Attributes included from Closure::NodeSupport
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_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 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?
Constructor Details
This class inherits a constructor from Opal::Nodes::Base
Instance Method Details
#compile ⇒ Object
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# File 'opal/lib/opal/nodes/args/extract_optarg.rb', line 25 def compile return if default_value.children[1] == :undefined push "if (#{name} == null) #{name} = ", expr(default_value) end