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2cfba34b8d
Streams have multiple parts that can be JS objects from different compartments. For example, the [[reader]] internal slot of a stream can point to a reader object in another compartment. This patch makes the ReadableStream implementation robust against mixing and matching stream-related objects and methods from different globals. This also removes ReadableStreamBYOBReader and ReadableStreamBYOBRequest for now, with a view toward enabling basic ReadableStream features by default in bug 1389628. Differential Revision: https://phabricator.services.mozilla.com/D8450 --HG-- extra : rebase_source : 71d73bed5bc82557efcb6b1ecb231275fd3e1189 extra : amend_source : de29f663b9929eb2858b23cc6f4e7ba97b23a28c extra : source : f91eb962df6a06d5f51ad13caa2a4a9c2947f293
126 lines
7.4 KiB
C
126 lines
7.4 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef js_ProtoKey_h
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#define js_ProtoKey_h
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/* A higher-order macro for enumerating all JSProtoKey values. */
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/*
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* Consumers define macros as follows:
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* macro(name, init, clasp)
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* name: The canonical name of the class.
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* init: Initialization function. These are |extern "C";|, and clients should use
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* |extern "C" {}| as appropriate when using this macro.
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* clasp: The JSClass for this object, or "dummy" if it doesn't exist.
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*
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*
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* Consumers wishing to iterate over all the JSProtoKey values, can use
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* JS_FOR_EACH_PROTOTYPE. However, there are certain values that don't correspond
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* to real constructors, like Null or constructors that are disabled via
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* preprocessor directives. We still need to include these in the JSProtoKey list
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* in order to maintain binary XDR compatibility, but we need to provide a tool
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* to handle them differently. JS_FOR_PROTOTYPES fills this niche.
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*
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* Consumers pass two macros to JS_FOR_PROTOTYPES - |real| and |imaginary|. The
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* former is invoked for entries that have real client-exposed constructors, and
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* the latter is called for the rest. Consumers that don't care about this
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* distinction can simply pass the same macro to both, which is exactly what
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* JS_FOR_EACH_PROTOTYPE does.
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*/
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#define CLASP(name) (&name##Class)
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#define OCLASP(name) (&name##Object::class_)
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#define TYPED_ARRAY_CLASP(type) (&TypedArrayObject::classes[Scalar::type])
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#define ERROR_CLASP(type) (&ErrorObject::classes[type])
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#ifdef EXPOSE_INTL_API
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#define IF_INTL(real,imaginary) real
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#else
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#define IF_INTL(real,imaginary) imaginary
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#endif
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#ifdef ENABLE_BINARYDATA
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#define IF_BDATA(real,imaginary) real
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#else
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#define IF_BDATA(real,imaginary) imaginary
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#endif
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#ifdef ENABLE_SHARED_ARRAY_BUFFER
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#define IF_SAB(real,imaginary) real
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#else
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#define IF_SAB(real,imaginary) imaginary
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#endif
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#define JS_FOR_PROTOTYPES(real,imaginary) \
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imaginary(Null, InitNullClass, dummy) \
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real(Object, InitViaClassSpec, OCLASP(Plain)) \
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real(Function, InitViaClassSpec, &JSFunction::class_) \
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real(Array, InitViaClassSpec, OCLASP(Array)) \
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real(Boolean, InitBooleanClass, OCLASP(Boolean)) \
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real(JSON, InitJSONClass, CLASP(JSON)) \
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real(Date, InitViaClassSpec, OCLASP(Date)) \
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real(Math, InitMathClass, CLASP(Math)) \
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real(Number, InitNumberClass, OCLASP(Number)) \
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real(String, InitStringClass, OCLASP(String)) \
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real(RegExp, InitViaClassSpec, OCLASP(RegExp)) \
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real(Error, InitViaClassSpec, ERROR_CLASP(JSEXN_ERR)) \
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real(InternalError, InitViaClassSpec, ERROR_CLASP(JSEXN_INTERNALERR)) \
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real(EvalError, InitViaClassSpec, ERROR_CLASP(JSEXN_EVALERR)) \
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real(RangeError, InitViaClassSpec, ERROR_CLASP(JSEXN_RANGEERR)) \
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real(ReferenceError, InitViaClassSpec, ERROR_CLASP(JSEXN_REFERENCEERR)) \
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real(SyntaxError, InitViaClassSpec, ERROR_CLASP(JSEXN_SYNTAXERR)) \
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real(TypeError, InitViaClassSpec, ERROR_CLASP(JSEXN_TYPEERR)) \
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real(URIError, InitViaClassSpec, ERROR_CLASP(JSEXN_URIERR)) \
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real(DebuggeeWouldRun, InitViaClassSpec, ERROR_CLASP(JSEXN_DEBUGGEEWOULDRUN)) \
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real(CompileError, InitViaClassSpec, ERROR_CLASP(JSEXN_WASMCOMPILEERROR)) \
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real(LinkError, InitViaClassSpec, ERROR_CLASP(JSEXN_WASMLINKERROR)) \
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real(RuntimeError, InitViaClassSpec, ERROR_CLASP(JSEXN_WASMRUNTIMEERROR)) \
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real(ArrayBuffer, InitViaClassSpec, OCLASP(ArrayBuffer)) \
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real(Int8Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Int8)) \
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real(Uint8Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint8)) \
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real(Int16Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Int16)) \
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real(Uint16Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint16)) \
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real(Int32Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Int32)) \
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real(Uint32Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint32)) \
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real(Float32Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Float32)) \
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real(Float64Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Float64)) \
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real(Uint8ClampedArray, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint8Clamped)) \
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IF_BIGINT(real,imaginary)(BigInt, InitViaClassSpec, OCLASP(BigInt)) \
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real(Proxy, InitProxyClass, &js::ProxyClass) \
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real(WeakMap, InitWeakMapClass, OCLASP(WeakMap)) \
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real(Map, InitViaClassSpec, OCLASP(Map)) \
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real(Set, InitViaClassSpec, OCLASP(Set)) \
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real(DataView, InitViaClassSpec, OCLASP(DataView)) \
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real(Symbol, InitSymbolClass, OCLASP(Symbol)) \
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IF_SAB(real,imaginary)(SharedArrayBuffer, InitViaClassSpec, OCLASP(SharedArrayBuffer)) \
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IF_INTL(real,imaginary) (Intl, InitIntlClass, CLASP(Intl)) \
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IF_BDATA(real,imaginary)(TypedObject, InitTypedObjectModuleObject, OCLASP(TypedObjectModule)) \
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real(Reflect, InitReflect, nullptr) \
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real(WeakSet, InitWeakSetClass, OCLASP(WeakSet)) \
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real(TypedArray, InitViaClassSpec, &js::TypedArrayObject::sharedTypedArrayPrototypeClass) \
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IF_SAB(real,imaginary)(Atomics, InitAtomicsClass, OCLASP(Atomics)) \
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real(SavedFrame, InitViaClassSpec, &js::SavedFrame::class_) \
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real(Promise, InitViaClassSpec, OCLASP(Promise)) \
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real(ReadableStream, InitViaClassSpec, &js::ReadableStream::class_) \
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real(ReadableStreamDefaultReader, InitViaClassSpec, &js::ReadableStreamDefaultReader::class_) \
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real(ReadableStreamDefaultController, InitViaClassSpec, &js::ReadableStreamDefaultController::class_) \
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real(ReadableByteStreamController, InitViaClassSpec, &js::ReadableByteStreamController::class_) \
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imaginary(WritableStream, dummy, dummy) \
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imaginary(WritableStreamDefaultWriter, dummy, dummy) \
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imaginary(WritableStreamDefaultController, dummy, dummy) \
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real(ByteLengthQueuingStrategy, InitViaClassSpec, &js::ByteLengthQueuingStrategy::class_) \
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real(CountQueuingStrategy, InitViaClassSpec, &js::CountQueuingStrategy::class_) \
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real(WebAssembly, InitWebAssemblyClass, CLASP(WebAssembly)) \
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imaginary(WasmModule, dummy, dummy) \
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imaginary(WasmInstance, dummy, dummy) \
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imaginary(WasmMemory, dummy, dummy) \
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imaginary(WasmTable, dummy, dummy) \
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imaginary(WasmGlobal, dummy, dummy) \
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#define JS_FOR_EACH_PROTOTYPE(macro) JS_FOR_PROTOTYPES(macro,macro)
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#endif /* js_ProtoKey_h */
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