Classes runtime

src/parser.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/api.h"
 #include "src/ast.h"
 #include "src/bailout-reason.h"
 #include "src/base/platform/platform.h"
@@ skipping 647 matching lines @@
   return factory->NewVariableProxy(scope->receiver(), pos);
 }
 
 Expression* ParserTraits::SuperReference(
     Scope* scope, AstNodeFactory<AstConstructionVisitor>* factory, int pos) {
   return factory->NewSuperReference(
       ThisExpression(scope, factory, pos)->AsVariableProxy(),
       pos);
 }
 
-Expression* ParserTraits::ClassLiteral(
+Expression* ParserTraits::ClassExpression(
     const AstRawString* name, Expression* extends, Expression* constructor,
     ZoneList<ObjectLiteral::Property*>* properties, int pos,
     AstNodeFactory<AstConstructionVisitor>* factory) {
   return factory->NewClassLiteral(name, extends, constructor, properties, pos);
 }
 
 Literal* ParserTraits::ExpressionFromLiteral(
     Token::Value token, int pos,
     Scanner* scanner,
     AstNodeFactory<AstConstructionVisitor>* factory) {
@@ skipping 1288 matching lines @@
   // so rewrite it as such.
 
   Expect(Token::CLASS, CHECK_OK);
   int pos = position();
   bool is_strict_reserved = false;
   const AstRawString* name =
       ParseIdentifierOrStrictReservedWord(&is_strict_reserved, CHECK_OK);
   Expression* value = ParseClassLiteral(name, scanner()->location(),
                                         is_strict_reserved, pos, CHECK_OK);
 
-  Block* block = factory()->NewBlock(NULL, 1, true, pos);

[arv (Not doing code reviews), 2014/10/03 21:11:57]

No need for this block since we only need to return one statement here.

-  VariableMode mode = LET;
-  VariableProxy* proxy = NewUnresolved(name, mode, Interface::NewValue());
+  VariableProxy* proxy = NewUnresolved(name, LET, Interface::NewValue());
   Declaration* declaration =
-      factory()->NewVariableDeclaration(proxy, mode, scope_, pos);
+      factory()->NewVariableDeclaration(proxy, LET, scope_, pos);
   Declare(declaration, true, CHECK_OK);
+  proxy->var()->set_initializer_position(pos);
 
   Token::Value init_op = Token::INIT_LET;
   Assignment* assignment = factory()->NewAssignment(init_op, proxy, value, pos);
-  block->AddStatement(
-      factory()->NewExpressionStatement(assignment, RelocInfo::kNoPosition),
-      zone());
-
+  Statement* assignment_statement =
+      factory()->NewExpressionStatement(assignment, RelocInfo::kNoPosition);
   if (names) names->Add(name, zone());
-  return block;
+  return assignment_statement;
 }
 
 
 Block* Parser::ParseBlock(ZoneList<const AstRawString*>* labels, bool* ok) {
   if (allow_harmony_scoping() && strict_mode() == STRICT) {
     return ParseScopedBlock(labels, ok);
   }
 
   // Block ::
   //   '{' Statement* '}'
@@ skipping 2953 matching lines @@
 
   // We cannot internalize on a background thread; a foreground task will take
   // care of calling Parser::Internalize just before compilation.
 
   if (compile_options() == ScriptCompiler::kProduceParserCache) {
     if (result != NULL) *info_->cached_data() = recorder.GetScriptData();
     log_ = NULL;
   }
 }
 } }  // namespace v8::internal