Class: Opal::Nodes::IterNode
- Defined in:
- opal/lib/opal/nodes/iter.rb
Constant Summary
Constants included from Helpers
Helpers::BASIC_IDENTIFIER_RULES, Helpers::ES3_RESERVED_WORD_EXCLUSIVE, Helpers::ES51_RESERVED_WORD, Helpers::IMMUTABLE_PROPS
Instance Attribute Summary
Attributes inherited from ScopeNode
#block_name, #catch_return, #defs, #gvars, #ivars, #methods, #mid, #name, #parent, #scope_name, #uses_super, #uses_zuper
Attributes inherited from Base
Instance Method Summary collapse
- #args ⇒ Object
-
#args_to_params(sexp) ⇒ Object
Maps block args into array of jsid.
- #body ⇒ Object
- #compile ⇒ Object
- #compile_args(args, opt_args, params) ⇒ Object
-
#extract_block_arg ⇒ Object
does this iter define a block_pass.
-
#extract_opt_args ⇒ Object
opt args are last (if present) and are a s(:block).
Methods inherited from ScopeNode
#add_arg, #add_proto_ivar, #add_scope_gvar, #add_scope_ivar, #add_scope_local, #add_scope_temp, #class?, #class_scope?, #def?, #def_in_class?, #find_parent_def, #get_super_chain, #has_local?, #has_temp?, #identify!, #identity, #in_scope, #in_while?, #initialize, #iter?, #module?, #new_temp, #next_temp, #pop_while, #proto, #push_while, #queue_temp, #sclass?, #to_vars, #top?, #uses_block!, #uses_block?
Methods inherited from Base
#add_gvar, #add_ivar, #add_local, #add_temp, children, #children, #compile_to_fragments, #error, #expr, #expr?, #expr_or_nil, #fragment, handle, handlers, #helper, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #stmt, #stmt?, #unshift, #while_loop, #with_temp, #wrap
Methods included from Helpers
#current_indent, #empty_line, #indent, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #lvar_to_js, #mid_to_jsid, #property, #valid_name?, #variable
Constructor Details
This class inherits a constructor from Opal::Nodes::ScopeNode
Instance Method Details
#args ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 95 def args if Fixnum === args_sexp or args_sexp.nil? s(:array) elsif args_sexp.type == :lasgn s(:array, args_sexp) else args_sexp[1] end end |
#args_to_params(sexp) ⇒ Object
Maps block args into array of jsid. Adds $ suffix to invalid js identifiers.
s(:args, parts...) => ["a", "b", "break$"]
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# File 'opal/lib/opal/nodes/iter.rb', line 113 def args_to_params(sexp) result = [] sexp.each do |arg| if arg[0] == :lasgn ref = variable(arg[1]) scope.add_arg ref result << ref elsif arg[0] == :array result << scope.next_temp else raise "Bad js_block_arg: #{arg[0]}" end end result end |
#body ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 105 def body compiler.returns(body_sexp || s(:nil)) end |
#compile ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 10 def compile opt_args = extract_opt_args block_arg = extract_block_arg # find any splat args if args.last.is_a?(Sexp) and args.last.type == :splat splat = args.last[1][1] args.pop len = args.length end params = args_to_params(args[1..-1]) params << splat if splat to_vars = identity = body_code = nil in_scope do identity = scope.identify! add_temp "self = #{identity}.$$s || this" compile_args(args[1..-1], opt_args, params) if splat scope.add_arg splat push "#{splat} = $slice.call(arguments, #{len - 1});" end if block_arg scope.block_name = block_arg scope.add_temp block_arg scope_name = scope.identify! line "#{block_arg} = #{scope_name}.$$p || nil, #{scope_name}.$$p = null;" end body_code = stmt(body) to_vars = scope.to_vars end line body_code unshift to_vars unshift "(#{identity} = function(#{params.join ', '}){" push "}, #{identity}.$$s = self, #{identity})" end |
#compile_args(args, opt_args, params) ⇒ Object
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# File 'opal/lib/opal/nodes/iter.rb', line 57 def compile_args(args, opt_args, params) args.each_with_index do |arg, idx| if arg.type == :lasgn arg = variable(arg[1]) if opt_args and current_opt = opt_args.find { |s| s[1] == arg.to_sym } push "if (#{arg} == null) #{arg} = ", expr(current_opt[2]), ";" else push "if (#{arg} == null) #{arg} = nil;" end elsif arg.type == :array arg[1..-1].each_with_index do |_arg, _idx| _arg = variable(_arg[1]) push "#{_arg} = #{params[idx]}[#{_idx}];" end else raise "Bad block arg type" end end end |