| /* |
| * Copyright (C) 2006-2018 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #pragma once |
| |
| namespace JSC { |
| |
| enum JSType : uint8_t { |
| // The CellType value must come before any JSType that is a JSCell. |
| CellType, |
| StringType, |
| SymbolType, |
| BigIntType, |
| |
| CustomGetterSetterType, |
| APIValueWrapperType, |
| |
| NativeExecutableType, |
| |
| ProgramExecutableType, |
| ModuleProgramExecutableType, |
| EvalExecutableType, |
| FunctionExecutableType, |
| |
| UnlinkedFunctionExecutableType, |
| |
| UnlinkedProgramCodeBlockType, |
| UnlinkedModuleProgramCodeBlockType, |
| UnlinkedEvalCodeBlockType, |
| UnlinkedFunctionCodeBlockType, |
| |
| CodeBlockType, |
| |
| JSFixedArrayType, |
| JSImmutableButterflyType, |
| JSSourceCodeType, |
| JSScriptFetcherType, |
| JSScriptFetchParametersType, |
| |
| // The ObjectType value must come before any JSType that is a subclass of JSObject. |
| ObjectType, |
| FinalObjectType, |
| JSCalleeType, |
| JSFunctionType, |
| InternalFunctionType, |
| NumberObjectType, |
| ErrorInstanceType, |
| PureForwardingProxyType, |
| ImpureProxyType, |
| DirectArgumentsType, |
| ScopedArgumentsType, |
| ClonedArgumentsType, |
| |
| // Start JSArray types. |
| ArrayType, |
| DerivedArrayType, |
| // End JSArray types. |
| |
| ArrayBufferType, |
| |
| // Start JSArrayBufferView types. Keep in sync with the order of FOR_EACH_TYPED_ARRAY_TYPE_EXCLUDING_DATA_VIEW. |
| Int8ArrayType, |
| Uint8ArrayType, |
| Uint8ClampedArrayType, |
| Int16ArrayType, |
| Uint16ArrayType, |
| Int32ArrayType, |
| Uint32ArrayType, |
| Float32ArrayType, |
| Float64ArrayType, |
| DataViewType, |
| // End JSArrayBufferView types. |
| |
| GetterSetterType, |
| |
| // JSScope <- JSWithScope |
| // <- StrictEvalActivation |
| // <- JSSymbolTableObject <- JSLexicalEnvironment <- JSModuleEnvironment |
| // <- JSSegmentedVariableObject <- JSGlobalLexicalEnvironment |
| // <- JSGlobalObject |
| // Start JSScope types. |
| // Start environment record types. |
| GlobalObjectType, |
| GlobalLexicalEnvironmentType, |
| LexicalEnvironmentType, |
| ModuleEnvironmentType, |
| StrictEvalActivationType, |
| // End environment record types. |
| WithScopeType, |
| // End JSScope types. |
| |
| RegExpObjectType, |
| ProxyObjectType, |
| JSMapType, |
| JSSetType, |
| JSWeakMapType, |
| JSWeakSetType, |
| WebAssemblyToJSCalleeType, |
| StringObjectType, |
| |
| LastJSCObjectType = StringObjectType, // This is the last "JSC" Object type. After this, we have embedder's (e.g., WebCore) extended object types. |
| MaxJSType = 0b11111111, |
| }; |
| |
| static constexpr uint32_t FirstTypedArrayType = Int8ArrayType; |
| static constexpr uint32_t LastTypedArrayType = DataViewType; |
| |
| // LastObjectType should be MaxJSType (not LastJSCObjectType) since embedders can add their extended object types after the enums listed in JSType. |
| static constexpr uint32_t FirstObjectType = ObjectType; |
| static constexpr uint32_t LastObjectType = MaxJSType; |
| |
| static constexpr uint32_t NumberOfTypedArrayTypes = LastTypedArrayType - FirstTypedArrayType + 1; |
| static constexpr uint32_t NumberOfTypedArrayTypesExcludingDataView = NumberOfTypedArrayTypes - 1; |
| |
| static_assert(sizeof(JSType) == sizeof(uint8_t), "sizeof(JSType) is one byte."); |
| static_assert(LastJSCObjectType < 128, "The highest bit is reserved for embedder's extension."); |
| |
| inline constexpr bool isTypedArrayType(JSType type) |
| { |
| return (static_cast<uint32_t>(type) - FirstTypedArrayType) < NumberOfTypedArrayTypesExcludingDataView; |
| } |
| |
| } // namespace JSC |
| |
| namespace WTF { |
| |
| class PrintStream; |
| |
| void printInternal(PrintStream&, JSC::JSType); |
| |
| } // namespace WTF |