Class: Opal::Nodes::BeginNode
- Defined in:
- opal/lib/opal/nodes/definitions.rb
Direct Known Subclasses
Constant Summary collapse
- COMPLEX_CHILDREN =
%i[whilewhile_postuntiluntil_postjs_return].freeze
Instance Attribute Summary
Attributes inherited from ScopeNode
#await_encountered , #block_name , #catch_return , #defs , #gvars , #has_break , #has_retry , #identity , #ivars , #locals , #methods , #mid , #name , #parent , #rescue_else_sexp , #scope_name
Attributes inherited from Base
Attributes included from Closure::NodeSupport
Instance Method Summary collapse
- #compile ⇒ Object
- #compile_children(children, level) ⇒ Object
- #compile_inline_children(children, level) ⇒ Object
- #returned_children ⇒ Object
- #simple_children? ⇒ Boolean
Methods inherited from ScopeNode
#accepts_using? , #add_arg , #add_proto_ivar , #add_scope_gvar , #add_scope_ivar , #add_scope_local , #add_scope_temp , #class? , #class_scope? , #collect_refinements_temps , #current_rescue , #def? , #def_in_class? , #defines_lambda , #find_parent_def , #gen_retry_id , #has_local? , #has_rescue_else? , #has_temp? , #identify! , #in_ensure , #in_ensure? , #in_resbody , #in_resbody? , #in_rescue , #in_scope , #in_while? , #initialize , #is_lambda! , #iter? , #lambda? , #lambda_definition? , #module? , #nesting , #new_refinements_temp , #new_temp , #next_temp , #pop_while , #prepare_block , #prepend_scope_temp , #push_while , #queue_temp , #refinements_temp , #relative_access , #sclass? , #scope_locals , #self , #super_chain , #to_vars , #top? , #uses_block! , #uses_block?
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::ScopeNode
Instance Method Details
#compile ⇒ Object
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# File 'opal/lib/opal/nodes/definitions.rb', line 46 def compile return push 'nil' if children.empty? if stmt? compile_children(children, @level) elsif simple_children? compile_inline_children(children, @level) wrap '(', ')' if children.size > 1 elsif children.size == 1 compile_inline_children(returned_children, @level) else in_closure do compile_children(returned_children, @level) end if scope.parent&.await_encountered wrap '(await (async function() {', '})())' else wrap '(function() {', '})()' end end end
#compile_children(children, level) ⇒ Object
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# File 'opal/lib/opal/nodes/definitions.rb', line 80 def compile_children(children, level) children.each do |child| line process(child, level), fragment(';', loc: false) end end
#compile_inline_children(children, level) ⇒ Object
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# File 'opal/lib/opal/nodes/definitions.rb', line 94 def compile_inline_children(children, level) processed_children = children.map do |child| process(child, level) end processed_children.reject(&:empty?).each_with_index do |child, idx| push fragment(', ', loc: false) unless idx == 0 push child end end
#returned_children ⇒ Object
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# File 'opal/lib/opal/nodes/definitions.rb', line 69 def returned_children @returned_children ||= begin *rest, last_child = *children if last_child rest + [compiler.returns(last_child)] else [s(:nil)] end end end
#simple_children? ⇒ Boolean
Returns:
- (Boolean)
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# File 'opal/lib/opal/nodes/definitions.rb', line 88 def simple_children? children.none? do |child| COMPLEX_CHILDREN .include?(child.type) end end