Class: Opal::Nodes::IterNode
- Inherits:
-
NodeWithArgs
- Object
- Base
- ScopeNode
- NodeWithArgs
- Opal::Nodes::IterNode
- Defined in:
- opal/lib/opal/nodes/iter.rb
Instance Attribute Summary
Attributes inherited from NodeWithArgs
#arity, #original_args, #used_kwargs
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
- #arity_check_node ⇒ Object
- #compile ⇒ Object
- #compile_block_arg ⇒ Object
- #compile_body ⇒ Object
- #extract_underscore_args ⇒ Object
- #has_top_level_mlhs_arg? ⇒ Boolean
- #has_trailing_comma_in_args? ⇒ Boolean
- #returned_body ⇒ Object
Methods inherited from NodeWithArgs
#compile_arity_check, #compile_body_or_shortcut, define_shortcut, #initialize, #parameters_code, shortcuts_for, #simple_value?
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::NodeWithArgs
Instance Method Details
#arity_check_node ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 135 def arity_check_node s(:iter_arity_check, original_args) end |
#compile ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 12 def compile is_lambda! if scope.lambda_definition? compile_body_or_shortcut blockopts = [] blockopts << "$$arity: #{arity}" blockopts << "$$s: #{scope.self}" if @define_self blockopts << "$$brk: #{@closure.throwers[:break]}" if @closure&.throwers&.key? :break blockopts << "$$ret: #{@closure.throwers[:return]}" if @closure&.throwers&.key? :return if compiler.arity_check? blockopts << "$$parameters: #{parameters_code}" end if compiler.enable_source_location? blockopts << "$$source_location: #{source_location}" end # MRI expands a passed argument if the block: # 1. takes a single argument that is an array # 2. has more that one argument # With a few exceptions: # 1. mlhs arg: if a block takes |(a, b)| argument # 2. trailing ',' in the arg list (|a, |) # This flag on the method indicates that a block has a top level mlhs argument # which means that we have to expand passed array explicitly in runtime. if has_top_level_mlhs_arg? blockopts << "$$has_top_level_mlhs_arg: true" end if has_trailing_comma_in_args? blockopts << "$$has_trailing_comma_in_args: true" end if blockopts.length == 1 push ", #{arity}" elsif blockopts.length > 1 push ', {', blockopts.join(', '), '}' end scope.nesting if @define_nesting scope.relative_access if @define_relative_access end |
#compile_block_arg ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 90 def compile_block_arg if block_arg scope.prepare_block end end |
#compile_body ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 57 def compile_body inline_params = nil to_vars = identity = body_code = nil in_scope do identity = scope.identify! inline_params = process(inline_args) compile_arity_check in_closure(Closure::JS_FUNCTION | Closure::ITER | (@is_lambda ? Closure::LAMBDA : 0)) do body_code = stmt(returned_body) add_temp "self = #{identity}.$$s == null ? this : #{identity}.$$s" if @define_self to_vars = scope.to_vars line body_code end end unshift to_vars if await_encountered unshift "async function #{identity}(", inline_params, '){' else unshift "function #{identity}(", inline_params, '){' end push '}' end |
#extract_underscore_args ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 96 def extract_underscore_args valid_args = [] caught_blank_argument = false args.children.each do |arg| arg_name = arg.children.first if arg_name == :_ unless caught_blank_argument caught_blank_argument = true valid_args << arg end else valid_args << arg end end @sexp = @sexp.updated( nil, [ args.updated(nil, valid_args), stmts ] ) end |
#has_top_level_mlhs_arg? ⇒ Boolean
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# File 'opal/lib/opal/nodes/iter.rb', line 124 def has_top_level_mlhs_arg? original_args.children.any? { |arg| arg.type == :mlhs } end |
#has_trailing_comma_in_args? ⇒ Boolean
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# File 'opal/lib/opal/nodes/iter.rb', line 128 def has_trailing_comma_in_args? if original_args.loc && original_args.loc.expression args_source = original_args.loc.expression.source args_source.match(/,\s*\|/) end end |
#returned_body ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 120 def returned_body compiler.returns(stmts || s(:nil)) end |