Add support for computed property names in object literals

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <algorithm>
 
 #include "src/v8.h"
 #include "src/allocation-site-scopes.h"
@@ skipping 5284 matching lines @@
   // The object is expected in the bailout environment during computation
   // of the property values and is the value of the entire expression.
   Push(literal);
 
   expr->CalculateEmitStore(zone());
 
   for (int i = 0; i < expr->properties()->length(); i++) {
     ObjectLiteral::Property* property = expr->properties()->at(i);
     if (property->IsCompileTimeValue()) continue;
 
-    Literal* key = property->key();
+    Literal* key = property->key()->AsLiteral();
     Expression* value = property->value();
 
     switch (property->kind()) {
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         ASSERT(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             CHECK_ALIVE(VisitForValue(value));
             HValue* value = Pop();
             Handle<Map> map = property->GetReceiverType();
-            Handle<String> name = property->key()->AsPropertyName();
+            Handle<String> name = key->AsPropertyName();
             HInstruction* store;
             if (map.is_null()) {
               // If we don't know the monomorphic type, do a generic store.
               CHECK_ALIVE(store = BuildNamedGeneric(
                   STORE, literal, name, value));
             } else {
               PropertyAccessInfo info(this, STORE, ToType(map), name);
               if (info.CanAccessMonomorphic()) {
                 HValue* checked_literal = Add<HCheckMaps>(literal, map);
                 ASSERT(!info.lookup()->IsPropertyCallbacks());
                 store = BuildMonomorphicAccess(
                     &info, literal, checked_literal, value,
                     BailoutId::None(), BailoutId::None());
               } else {
                 CHECK_ALIVE(store = BuildNamedGeneric(
                     STORE, literal, name, value));
               }
             }
             AddInstruction(store);
             if (store->HasObservableSideEffects()) {
               Add<HSimulate>(key->id(), REMOVABLE_SIMULATE);
             }
           } else {
             CHECK_ALIVE(VisitForEffect(value));
           }
           break;
         }
         // Fall through.
+      case ObjectLiteral::Property::COMPUTED_NAME:
       case ObjectLiteral::Property::PROTOTYPE:
       case ObjectLiteral::Property::SETTER:
       case ObjectLiteral::Property::GETTER:
         return Bailout(kObjectLiteralWithComplexProperty);
       default: UNREACHABLE();
     }
   }
 
   if (expr->has_function()) {
     // Return the result of the transformation to fast properties
@@ skipping 6791 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal