| /* |
| * 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. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_ANY_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_ANY_H_ |
| |
| #include <memory> |
| |
| #include "third_party/blink/renderer/modules/indexeddb/idb_key.h" |
| #include "third_party/blink/renderer/modules/indexeddb/idb_value.h" |
| #include "third_party/blink/renderer/modules/modules_export.h" |
| #include "third_party/blink/renderer/platform/bindings/script_wrappable.h" |
| #include "third_party/blink/renderer/platform/wtf/forward.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| class IDBCursor; |
| class IDBCursorWithValue; |
| class IDBDatabase; |
| class IDBIndex; |
| class IDBObjectStore; |
| |
| // IDBAny is used for: |
| // * source of IDBCursor (IDBObjectStore or IDBIndex) |
| // * source of IDBRequest (IDBObjectStore, IDBIndex, IDBCursor, or null) |
| // * result of IDBRequest (IDBDatabase, IDBCursor, undefined, integer, |
| // key or value) |
| // |
| // This allows for lazy conversion to script values (via IDBBindingUtilities), |
| // and avoids the need for many dedicated union types. |
| |
| class MODULES_EXPORT IDBAny final : public GarbageCollected<IDBAny> { |
| public: |
| enum Type { |
| kUndefinedType = 0, |
| kNullType, |
| kIDBCursorType, |
| kIDBCursorWithValueType, |
| kIDBDatabaseType, |
| kIntegerType, |
| kKeyType, |
| kIDBValueType, |
| kIDBValueArrayType |
| }; |
| |
| explicit IDBAny(Type); |
| explicit IDBAny(IDBCursor*); |
| explicit IDBAny(IDBDatabase*); |
| explicit IDBAny(std::unique_ptr<IDBKey>); |
| explicit IDBAny(Vector<std::unique_ptr<IDBValue>>); |
| explicit IDBAny(std::unique_ptr<IDBValue>); |
| explicit IDBAny(int64_t); |
| ~IDBAny(); |
| |
| void Trace(Visitor*) const; |
| void ContextWillBeDestroyed(); |
| |
| Type GetType() const { return type_; } |
| // Use type() to figure out which one of these you're allowed to call. |
| IDBCursor* IdbCursor() const; |
| IDBCursorWithValue* IdbCursorWithValue() const; |
| IDBDatabase* IdbDatabase() const; |
| IDBValue* Value() const; |
| const Vector<std::unique_ptr<IDBValue>>& Values() const; |
| int64_t Integer() const; |
| const IDBKey* Key() const; |
| |
| private: |
| const Type type_; |
| |
| // Only one of the following should ever be in use at any given time. |
| const Member<IDBCursor> idb_cursor_; |
| const Member<IDBDatabase> idb_database_; |
| const std::unique_ptr<IDBKey> idb_key_; |
| const std::unique_ptr<IDBValue> idb_value_; |
| const Vector<std::unique_ptr<IDBValue>> idb_values_; |
| const int64_t integer_ = 0; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_ANY_H_ |