Class: Opal::Nodes::BeginNode
- Defined in:
- opal/lib/opal/nodes/definitions.rb
Direct Known Subclasses
Constant Summary collapse
- COMPLEX_CHILDREN =
%i[while while_post until until_post js_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
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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 |