[es6] Parsing of new.target

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 75bfbe25ab84611b2a14a95be4f098cd17073728..8c19548240a23b137e19ee25d2b6615ef5b61ea7 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -756,6 +756,7 @@ Expression* ParserTraits::ThisExpression(Scope* scope, AstNodeFactory* factory,
                               Variable::THIS, pos, pos + 4);
 }
 
+
 Expression* ParserTraits::SuperPropertyReference(Scope* scope,
                                                  AstNodeFactory* factory,
                                                  int pos) {
@@ -786,6 +787,15 @@ Expression* ParserTraits::SuperCallReference(Scope* scope,
 }
 
 
+Expression* ParserTraits::NewTargetExpression(Scope* scope,
+                                              AstNodeFactory* factory,
+                                              int pos) {
+  return scope->NewUnresolved(factory,
+                              parser_->ast_value_factory()->new_target_string(),
+                              Variable::NORMAL, pos, pos + 10);

[arv (Not doing code reviews), 2015/06/08 19:56:44]

Is there a way to get the length of "new.target" at compile time?

[Dmitry Lomov (no reviews), 2015/06/09 09:57:23]

Maybe add a constant?

+}
+
+
 Expression* ParserTraits::DefaultConstructor(bool call_super, Scope* scope,
                                              int pos, int end_pos) {
   return parser_->DefaultConstructor(call_super, scope, pos, end_pos);
@@ -910,6 +920,7 @@ Parser::Parser(ParseInfo* info)
   set_allow_harmony_spreadcalls(FLAG_harmony_spreadcalls);
   set_allow_harmony_destructuring(FLAG_harmony_destructuring);
   set_allow_harmony_spread_arrays(FLAG_harmony_spread_arrays);
+  set_allow_harmony_new_target(FLAG_harmony_new_target);
   set_allow_strong_mode(FLAG_strong_mode);
   for (int feature = 0; feature < v8::Isolate::kUseCounterFeatureCount;
        ++feature) {
@@ -4286,26 +4297,22 @@ PreParser::PreParseResult Parser::ParseLazyFunctionBodyWithPreParser(
     reusable_preparser_ = new PreParser(zone(), &scanner_, ast_value_factory(),
                                         NULL, stack_limit_);
     reusable_preparser_->set_allow_lazy(true);
-    reusable_preparser_->set_allow_natives(allow_natives());
-    reusable_preparser_->set_allow_harmony_modules(allow_harmony_modules());
-    reusable_preparser_->set_allow_harmony_arrow_functions(
-        allow_harmony_arrow_functions());
-    reusable_preparser_->set_allow_harmony_classes(allow_harmony_classes());
-    reusable_preparser_->set_allow_harmony_object_literals(
-        allow_harmony_object_literals());
-    reusable_preparser_->set_allow_harmony_sloppy(allow_harmony_sloppy());
-    reusable_preparser_->set_allow_harmony_unicode(allow_harmony_unicode());
-    reusable_preparser_->set_allow_harmony_computed_property_names(
-        allow_harmony_computed_property_names());
-    reusable_preparser_->set_allow_harmony_rest_params(
-        allow_harmony_rest_params());
-    reusable_preparser_->set_allow_harmony_spreadcalls(
-        allow_harmony_spreadcalls());
-    reusable_preparser_->set_allow_harmony_destructuring(
-        allow_harmony_destructuring());
-    reusable_preparser_->set_allow_harmony_spread_arrays(
-        allow_harmony_spread_arrays());
-    reusable_preparser_->set_allow_strong_mode(allow_strong_mode());
+#define SET_ALLOW(name) reusable_preparser_->set_allow_##name(allow_##name());
+    SET_ALLOW(natives);
+    SET_ALLOW(harmony_modules);
+    SET_ALLOW(harmony_arrow_functions);
+    SET_ALLOW(harmony_classes);
+    SET_ALLOW(harmony_object_literals);
+    SET_ALLOW(harmony_sloppy);
+    SET_ALLOW(harmony_unicode);
+    SET_ALLOW(harmony_computed_property_names);
+    SET_ALLOW(harmony_rest_params);
+    SET_ALLOW(harmony_spreadcalls);
+    SET_ALLOW(harmony_destructuring);
+    SET_ALLOW(harmony_spread_arrays);
+    SET_ALLOW(harmony_new_target);
+    SET_ALLOW(strong_mode);
+#undef SET_ALLOW
   }
   PreParser::PreParseResult result = reusable_preparser_->PreParseLazyFunction(
       language_mode(), function_state_->kind(), logger, bookmark);