Remove IDBNotFoundError ExceptionCode

Source/modules/indexeddb/IDBObjectStore.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/indexeddb/IDBObjectStore.h"
 
+#include "bindings/v8/ExceptionState.h"
+#include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "bindings/v8/IDBBindingUtilities.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "core/dom/DOMStringList.h"
 #include "core/dom/ExceptionCode.h"
-#include "core/dom/ExceptionCodePlaceholder.h"
 #include "core/dom/ScriptExecutionContext.h"
 #include "core/platform/SharedBuffer.h"
 #include "modules/indexeddb/IDBAny.h"
 #include "modules/indexeddb/IDBCursorWithValue.h"
 #include "modules/indexeddb/IDBDatabase.h"
 #include "modules/indexeddb/IDBIndex.h"
 #include "modules/indexeddb/IDBKey.h"
 #include "modules/indexeddb/IDBKeyPath.h"
 #include "modules/indexeddb/IDBKeyRange.h"
 #include "modules/indexeddb/IDBTracing.h"
@@ skipping 18 matching lines @@
 PassRefPtr<DOMStringList> IDBObjectStore::indexNames() const
 {
     IDB_TRACE("IDBObjectStore::indexNames");
     RefPtr<DOMStringList> indexNames = DOMStringList::create();
     for (IDBObjectStoreMetadata::IndexMap::const_iterator it = m_metadata.indexes.begin(); it != m_metadata.indexes.end(); ++it)
         indexNames->append(it->value.name);
     indexNames->sort();
     return indexNames.release();
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::get(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::get(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::get");
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!keyRange) {
-        ec = DataError;
+        es.throwDOMException(DataError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     backendDB()->get(m_transaction->id(), id(), IDBIndexMetadata::InvalidId, keyRange, false, request);
     return request.release();
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::get(ScriptExecutionContext* context, const ScriptValue& key, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::get(ScriptExecutionContext* context, const ScriptValue& key, ExceptionState& es)
 {
-    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, ec);
-    if (ec)
+    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es);
+    if (es.hadException())
         return 0;
-    return get(context, keyRange.release(), ec);
+    return get(context, keyRange.release(), es);
 }
 
 static void generateIndexKeysForValue(DOMRequestState* requestState, const IDBIndexMetadata& indexMetadata, const ScriptValue& objectValue, IDBObjectStore::IndexKeys* indexKeys)
 {
     ASSERT(indexKeys);
     RefPtr<IDBKey> indexKey = createIDBKeyFromScriptValueAndKeyPath(requestState, objectValue, indexMetadata.keyPath);
 
     if (!indexKey)
         return;
 
     if (!indexMetadata.multiEntry || indexKey->type() != IDBKey::ArrayType) {
         if (!indexKey->isValid())
             return;
 
         indexKeys->append(indexKey);
     } else {
         ASSERT(indexMetadata.multiEntry);
         ASSERT(indexKey->type() == IDBKey::ArrayType);
         indexKey = IDBKey::createMultiEntryArray(indexKey->array());
 
         for (size_t i = 0; i < indexKey->array().size(); ++i)
             indexKeys->append(indexKey->array()[i]);
     }
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::add(ScriptState* state, ScriptValue& value, const ScriptValue& key, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::add(ScriptState* state, ScriptValue& value, const ScriptValue& key, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::add");
-    return put(IDBDatabaseBackendInterface::AddOnly, IDBAny::create(this), state, value, key, ec);
+    return put(IDBDatabaseBackendInterface::AddOnly, IDBAny::create(this), state, value, key, es);
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::put(ScriptState* state, ScriptValue& value, const ScriptValue& key, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::put(ScriptState* state, ScriptValue& value, const ScriptValue& key, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::put");
-    return put(IDBDatabaseBackendInterface::AddOrUpdate, IDBAny::create(this), state, value, key, ec);
+    return put(IDBDatabaseBackendInterface::AddOrUpdate, IDBAny::create(this), state, value, key, es);
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::put(IDBDatabaseBackendInterface::PutMode putMode, PassRefPtr<IDBAny> source, ScriptState* state, ScriptValue& value, const ScriptValue& keyValue, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::put(IDBDatabaseBackendInterface::PutMode putMode, PassRefPtr<IDBAny> source, ScriptState* state, ScriptValue& value, const ScriptValue& keyValue, ExceptionState& es)
 {
     ScriptExecutionContext* context = state->scriptExecutionContext();
     DOMRequestState requestState(context);
     RefPtr<IDBKey> key = keyValue.isUndefined() ? 0 : scriptValueToIDBKey(&requestState, keyValue);
-    return put(putMode, source, state, value, key.release(), ec);
+    return put(putMode, source, state, value, key.release(), es);
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::put(IDBDatabaseBackendInterface::PutMode putMode, PassRefPtr<IDBAny> source, ScriptState* state, ScriptValue& value, PassRefPtr<IDBKey> prpKey, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::put(IDBDatabaseBackendInterface::PutMode putMode, PassRefPtr<IDBAny> source, ScriptState* state, ScriptValue& value, PassRefPtr<IDBKey> prpKey, ExceptionState& es)
 {
     RefPtr<IDBKey> key = prpKey;
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
     if (m_transaction->isReadOnly()) {
-        ec = ReadOnlyError;
+        es.throwDOMException(ReadOnlyError);
         return 0;
     }
 
-    // FIXME: Expose the JS engine exception state through ScriptState.
+    // FIXME: Make serialize etc take an ExceptionState or use ScriptState::setDOMException.
     bool didThrow = false;
     RefPtr<SerializedScriptValue> serializedValue = value.serialize(state, 0, 0, didThrow);
-    if (didThrow) {
-        // Setting an explicit ExceptionCode here would defer handling the already thrown exception.
+    if (didThrow)
+        return 0;
+
+    if (serializedValue->blobURLs().size() > 0) {
+        // FIXME: Add Blob/File/FileList support
+        es.throwDOMException(DataCloneError);
         return 0;
     }
 
-    if (serializedValue->blobURLs().size() > 0) {
-        // FIXME: Add Blob/File/FileList support
-        ec = DataCloneError;
-        return 0;
-    }
-
     const IDBKeyPath& keyPath = m_metadata.keyPath;
     const bool usesInLineKeys = !keyPath.isNull();
     const bool hasKeyGenerator = autoIncrement();
 
     ScriptExecutionContext* context = state->scriptExecutionContext();
     DOMRequestState requestState(context);
 
     if (putMode != IDBDatabaseBackendInterface::CursorUpdate && usesInLineKeys && key) {
-        ec = DataError;
+        es.throwDOMException(DataError);
         return 0;
     }
     if (!usesInLineKeys && !hasKeyGenerator && !key) {
-        ec = DataError;
+        es.throwDOMException(DataError);
         return 0;
     }
     if (usesInLineKeys) {
         RefPtr<IDBKey> keyPathKey = createIDBKeyFromScriptValueAndKeyPath(&requestState, value, keyPath);
         if (keyPathKey && !keyPathKey->isValid()) {
-            ec = DataError;
+            es.throwDOMException(DataError);
             return 0;
         }
         if (!hasKeyGenerator && !keyPathKey) {
-            ec = DataError;
+            es.throwDOMException(DataError);
             return 0;
         }
         if (hasKeyGenerator && !keyPathKey) {
             if (!canInjectIDBKeyIntoScriptValue(&requestState, value, keyPath)) {
-                ec = DataError;
+                es.throwDOMException(DataError);
                 return 0;
             }
         }
         if (keyPathKey)
             key = keyPathKey;
     }
     if (key && !key->isValid()) {
-        ec = DataError;
+        es.throwDOMException(DataError);
         return 0;
     }
 
     Vector<int64_t> indexIds;
     Vector<IndexKeys> indexKeys;
     for (IDBObjectStoreMetadata::IndexMap::const_iterator it = m_metadata.indexes.begin(); it != m_metadata.indexes.end(); ++it) {
         IndexKeys keys;
         generateIndexKeysForValue(&requestState, it->value, value, &keys);
         indexIds.append(it->key);
         indexKeys.append(keys);
     }
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, source, m_transaction.get());
     Vector<char> wireBytes;
     serializedValue->toWireBytes(wireBytes);
     RefPtr<SharedBuffer> valueBuffer = SharedBuffer::adoptVector(wireBytes);
     backendDB()->put(m_transaction->id(), id(), valueBuffer, key.release(), static_cast<IDBDatabaseBackendInterface::PutMode>(putMode), request, indexIds, indexKeys);
     return request.release();
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::deleteFunction(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::deleteFunction(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::delete");
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
     if (m_transaction->isReadOnly()) {
-        ec = ReadOnlyError;
+        es.throwDOMException(ReadOnlyError);
         return 0;
     }
     if (!keyRange) {
-        ec = DataError;
+        es.throwDOMException(DataError);
         return 0;
     }
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     backendDB()->deleteRange(m_transaction->id(), id(), keyRange, request);
     return request.release();
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::deleteFunction(ScriptExecutionContext* context, const ScriptValue& key, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::deleteFunction(ScriptExecutionContext* context, const ScriptValue& key, ExceptionState& es)
 {
-    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, ec);
-    if (ec)
+    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es);
+    if (es.hadException())
         return 0;
-    return deleteFunction(context, keyRange.release(), ec);
+    return deleteFunction(context, keyRange.release(), es);
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::clear(ScriptExecutionContext* context, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::clear(ScriptExecutionContext* context, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::clear");
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
     if (m_transaction->isReadOnly()) {
-        ec = ReadOnlyError;
+        es.throwDOMException(ReadOnlyError);
         return 0;
     }
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     backendDB()->clear(m_transaction->id(), id(), request);
     return request.release();
 }
 
 namespace {
 // This class creates the index keys for a given index by extracting
@@ skipping 22 matching lines @@
         , m_indexMetadata(indexMetadata)
     {
     }
 
     virtual void handleEvent(ScriptExecutionContext*, Event* event)
     {
         ASSERT(event->type() == eventNames().successEvent);
         EventTarget* target = event->target();
         IDBRequest* request = static_cast<IDBRequest*>(target);
 
-        RefPtr<IDBAny> cursorAny = request->result(ASSERT_NO_EXCEPTION);
+        RefPtr<IDBAny> cursorAny = request->result(ASSERT_NO_EXCEPTION_STATE);
         RefPtr<IDBCursorWithValue> cursor;
         if (cursorAny->type() == IDBAny::IDBCursorWithValueType)
             cursor = cursorAny->idbCursorWithValue();
 
         Vector<int64_t, 1> indexIds;
         indexIds.append(m_indexMetadata.id);
         if (cursor) {
-            cursor->continueFunction(static_cast<IDBKey*>(0), ASSERT_NO_EXCEPTION);
+            cursor->continueFunction(static_cast<IDBKey*>(0), ASSERT_NO_EXCEPTION_STATE);
 
             RefPtr<IDBKey> primaryKey = cursor->idbPrimaryKey();
             ScriptValue value = cursor->value();
 
             IDBObjectStore::IndexKeys indexKeys;
             generateIndexKeysForValue(request->requestState(), m_indexMetadata, value, &indexKeys);
 
             Vector<IDBObjectStore::IndexKeys, 1> indexKeysList;
             indexKeysList.append(indexKeys);
 
             m_databaseBackend->setIndexKeys(m_transactionId, m_objectStoreId, primaryKey, indexIds, indexKeysList);
         } else {
             // Now that we are done indexing, tell the backend to go
             // back to processing tasks of type NormalTask.
             m_databaseBackend->setIndexesReady(m_transactionId, m_objectStoreId, indexIds);
             m_databaseBackend.clear();
         }
 
     }
 
     RefPtr<IDBDatabaseBackendInterface> m_databaseBackend;
     const int64_t m_transactionId;
     const int64_t m_objectStoreId;
     const IDBIndexMetadata m_indexMetadata;
 };
 }
 
-PassRefPtr<IDBIndex> IDBObjectStore::createIndex(ScriptExecutionContext* context, const String& name, const IDBKeyPath& keyPath, const Dictionary& options, ExceptionCode& ec)
+PassRefPtr<IDBIndex> IDBObjectStore::createIndex(ScriptExecutionContext* context, const String& name, const IDBKeyPath& keyPath, const Dictionary& options, ExceptionState& es)
 {
     bool unique = false;
     options.get("unique", unique);
 
     bool multiEntry = false;
     options.get("multiEntry", multiEntry);
 
-    return createIndex(context, name, keyPath, unique, multiEntry, ec);
+    return createIndex(context, name, keyPath, unique, multiEntry, es);
 }
 
-PassRefPtr<IDBIndex> IDBObjectStore::createIndex(ScriptExecutionContext* context, const String& name, const IDBKeyPath& keyPath, bool unique, bool multiEntry, ExceptionCode& ec)
+PassRefPtr<IDBIndex> IDBObjectStore::createIndex(ScriptExecutionContext* context, const String& name, const IDBKeyPath& keyPath, bool unique, bool multiEntry, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::createIndex");
     if (!m_transaction->isVersionChange() || isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
     if (!keyPath.isValid()) {
-        ec = SyntaxError;
+        es.throwDOMException(SyntaxError);
         return 0;
     }
     if (name.isNull()) {
-        ec = TypeError;
+        es.throwTypeError();
         return 0;
     }
     if (containsIndex(name)) {
-        ec = ConstraintError;
+        es.throwDOMException(ConstraintError);
         return 0;
     }
 
     if (keyPath.type() == IDBKeyPath::ArrayType && multiEntry) {
-        ec = InvalidAccessError;
+        es.throwDOMException(InvalidAccessError);
         return 0;
     }
 
     int64_t indexId = m_metadata.maxIndexId + 1;
     backendDB()->createIndex(m_transaction->id(), id(), indexId, name, keyPath, unique, multiEntry);
 
     ++m_metadata.maxIndexId;
 
     IDBIndexMetadata metadata(name, indexId, keyPath, unique, multiEntry);
     RefPtr<IDBIndex> index = IDBIndex::create(metadata, this, m_transaction.get());
     m_indexMap.set(name, index);
     m_metadata.indexes.set(indexId, metadata);
     m_transaction->db()->indexCreated(id(), metadata);
 
-    ASSERT(!ec);
-    if (ec)
+    ASSERT(!es.hadException());
+    if (es.hadException())
         return 0;
 
-    RefPtr<IDBRequest> indexRequest = openCursor(context, static_cast<IDBKeyRange*>(0), IDBCursor::directionNext(), IDBDatabaseBackendInterface::PreemptiveTask, ec);
-    ASSERT(!ec);
-    if (ec)
+    RefPtr<IDBRequest> indexRequest = openCursor(context, static_cast<IDBKeyRange*>(0), IDBCursor::directionNext(), IDBDatabaseBackendInterface::PreemptiveTask, es);
+    ASSERT(!es.hadException());
+    if (es.hadException())
         return 0;
     indexRequest->preventPropagation();
 
     // This is kept alive by being the success handler of the request, which is in turn kept alive by the owning transaction.
     RefPtr<IndexPopulator> indexPopulator = IndexPopulator::create(backendDB(), m_transaction->id(), id(), metadata);
     indexRequest->setOnsuccess(indexPopulator);
 
     return index.release();
 }
 
-PassRefPtr<IDBIndex> IDBObjectStore::index(const String& name, ExceptionCode& ec)
+PassRefPtr<IDBIndex> IDBObjectStore::index(const String& name, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::index");
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (m_transaction->isFinished()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
 
     IDBIndexMap::iterator it = m_indexMap.find(name);
     if (it != m_indexMap.end())
         return it->value;
 
     int64_t indexId = findIndexId(name);
     if (indexId == IDBIndexMetadata::InvalidId) {
-        // FIXME: Should use (NotFoundError, "...").
-        ec = IDBNotFoundError;
+        es.throwDOMException(NotFoundError, IDBDatabase::notFoundErrorMessage);
         return 0;
     }
 
     const IDBIndexMetadata* indexMetadata(0);
     for (IDBObjectStoreMetadata::IndexMap::const_iterator it = m_metadata.indexes.begin(); it != m_metadata.indexes.end(); ++it) {
         if (it->value.name == name) {
             indexMetadata = &it->value;
             break;
         }
     }
     ASSERT(indexMetadata);
     ASSERT(indexMetadata->id != IDBIndexMetadata::InvalidId);
 
     RefPtr<IDBIndex> index = IDBIndex::create(*indexMetadata, this, m_transaction.get());
     m_indexMap.set(name, index);
     return index.release();
 }
 
-void IDBObjectStore::deleteIndex(const String& name, ExceptionCode& ec)
+void IDBObjectStore::deleteIndex(const String& name, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::deleteIndex");
     if (!m_transaction->isVersionChange() || isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return;
     }
     int64_t indexId = findIndexId(name);
     if (indexId == IDBIndexMetadata::InvalidId) {
-        // FIXME: Should use (NotFoundError, "...").
-        ec = IDBNotFoundError;
+        es.throwDOMException(NotFoundError, IDBDatabase::notFoundErrorMessage);
         return;
     }
 
     backendDB()->deleteIndex(m_transaction->id(), id(), indexId);
 
     m_metadata.indexes.remove(indexId);
     m_transaction->db()->indexDeleted(id(), indexId);
     IDBIndexMap::iterator it = m_indexMap.find(name);
     if (it != m_indexMap.end()) {
         it->value->markDeleted();
         m_indexMap.remove(name);
     }
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::openCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> range, const String& directionString, IDBDatabaseBackendInterface::TaskType taskType, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::openCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> range, const String& directionString, IDBDatabaseBackendInterface::TaskType taskType, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::openCursor");
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
-    IndexedDB::CursorDirection direction = IDBCursor::stringToDirection(directionString, ec);
-    if (ec)
+    IndexedDB::CursorDirection direction = IDBCursor::stringToDirection(directionString, es);
+    if (es.hadException())
         return 0;
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     request->setCursorDetails(IndexedDB::CursorKeyAndValue, direction);
 
     backendDB()->openCursor(m_transaction->id(), id(), IDBIndexMetadata::InvalidId, range, direction, false, static_cast<IDBDatabaseBackendInterface::TaskType>(taskType), request);
     return request.release();
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::openCursor(ScriptExecutionContext* context, const ScriptValue& key, const String& direction, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::openCursor(ScriptExecutionContext* context, const ScriptValue& key, const String& direction, ExceptionState& es)
 {
-    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, ec);
-    if (ec)
+    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es);
+    if (es.hadException())
         return 0;
-    return openCursor(context, keyRange.release(), direction, ec);
+    return openCursor(context, keyRange.release(), direction, es);
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::count(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> range, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::count(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> range, ExceptionState& es)
 {
     IDB_TRACE("IDBObjectStore::count");
     if (isDeleted()) {
-        ec = InvalidStateError;
+        es.throwDOMException(InvalidStateError);
         return 0;
     }
     if (!m_transaction->isActive()) {
-        ec = TransactionInactiveError;
+        es.throwDOMException(TransactionInactiveError);
         return 0;
     }
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     backendDB()->count(m_transaction->id(), id(), IDBIndexMetadata::InvalidId, range, request);
     return request.release();
 }
 
-PassRefPtr<IDBRequest> IDBObjectStore::count(ScriptExecutionContext* context, const ScriptValue& key, ExceptionCode& ec)
+PassRefPtr<IDBRequest> IDBObjectStore::count(ScriptExecutionContext* context, const ScriptValue& key, ExceptionState& es)
 {
-    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, ec);
-    if (ec)
+    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es);
+    if (es.hadException())
         return 0;
-    return count(context, keyRange.release(), ec);
+    return count(context, keyRange.release(), es);
 }
 
 void IDBObjectStore::transactionFinished()
 {
     ASSERT(m_transaction->isFinished());
 
     // Break reference cycles.
     m_indexMap.clear();
 }
 
 int64_t IDBObjectStore::findIndexId(const String& name) const
 {
     for (IDBObjectStoreMetadata::IndexMap::const_iterator it = m_metadata.indexes.begin(); it != m_metadata.indexes.end(); ++it) {
         if (it->value.name == name) {
             ASSERT(it->key != IDBIndexMetadata::InvalidId);
             return it->key;
         }
     }
     return IDBIndexMetadata::InvalidId;
 }
 
 IDBDatabaseBackendInterface* IDBObjectStore::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 } // namespace WebCore