зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
7.6 KiB
C
120 строки
7.6 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 jsprototypes_h
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#define jsprototypes_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, code, init, clasp)
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* name: The canonical name of the class.
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* code: The enumerator code. There are part of the XDR API, and must not change.
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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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#define SHARED_TYPED_ARRAY_CLASP(type) (&SharedTypedArrayObject::classes[Scalar::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, 0, InitNullClass, dummy) \
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real(Object, 1, InitViaClassSpec, OCLASP(Plain)) \
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real(Function, 2, InitViaClassSpec, &JSFunction::class_) \
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real(Array, 3, InitViaClassSpec, OCLASP(Array)) \
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real(Boolean, 4, InitBooleanClass, OCLASP(Boolean)) \
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real(JSON, 5, InitJSONClass, CLASP(JSON)) \
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real(Date, 6, InitViaClassSpec, OCLASP(Date)) \
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real(Math, 7, InitMathClass, CLASP(Math)) \
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real(Number, 8, InitNumberClass, OCLASP(Number)) \
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real(String, 9, InitStringClass, OCLASP(String)) \
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real(RegExp, 10, InitViaClassSpec, OCLASP(RegExp)) \
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real(Error, 11, InitViaClassSpec, ERROR_CLASP(JSEXN_ERR)) \
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real(InternalError, 12, InitViaClassSpec, ERROR_CLASP(JSEXN_INTERNALERR)) \
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real(EvalError, 13, InitViaClassSpec, ERROR_CLASP(JSEXN_EVALERR)) \
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real(RangeError, 14, InitViaClassSpec, ERROR_CLASP(JSEXN_RANGEERR)) \
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real(ReferenceError, 15, InitViaClassSpec, ERROR_CLASP(JSEXN_REFERENCEERR)) \
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real(SyntaxError, 16, InitViaClassSpec, ERROR_CLASP(JSEXN_SYNTAXERR)) \
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real(TypeError, 17, InitViaClassSpec, ERROR_CLASP(JSEXN_TYPEERR)) \
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real(URIError, 18, InitViaClassSpec, ERROR_CLASP(JSEXN_URIERR)) \
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real(Iterator, 19, InitIteratorClasses, OCLASP(PropertyIterator)) \
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real(StopIteration, 20, InitIteratorClasses, OCLASP(StopIteration)) \
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real(ArrayBuffer, 21, InitArrayBufferClass, &js::ArrayBufferObject::protoClass) \
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real(Int8Array, 22, InitViaClassSpec, TYPED_ARRAY_CLASP(Int8)) \
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real(Uint8Array, 23, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint8)) \
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real(Int16Array, 24, InitViaClassSpec, TYPED_ARRAY_CLASP(Int16)) \
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real(Uint16Array, 25, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint16)) \
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real(Int32Array, 26, InitViaClassSpec, TYPED_ARRAY_CLASP(Int32)) \
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real(Uint32Array, 27, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint32)) \
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real(Float32Array, 28, InitViaClassSpec, TYPED_ARRAY_CLASP(Float32)) \
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real(Float64Array, 29, InitViaClassSpec, TYPED_ARRAY_CLASP(Float64)) \
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real(Uint8ClampedArray, 30, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint8Clamped)) \
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real(Proxy, 31, InitProxyClass, OCLASP(Proxy)) \
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real(WeakMap, 32, InitWeakMapClass, OCLASP(WeakMap)) \
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real(Map, 33, InitMapClass, OCLASP(Map)) \
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real(Set, 34, InitSetClass, OCLASP(Set)) \
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real(DataView, 35, InitDataViewClass, OCLASP(DataView)) \
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real(Symbol, 36, InitSymbolClass, OCLASP(Symbol)) \
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IF_SAB(real,imaginary)(SharedArrayBuffer, 37, InitSharedArrayBufferClass, &js::SharedArrayBufferObject::protoClass) \
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IF_INTL(real,imaginary) (Intl, 38, InitIntlClass, CLASP(Intl)) \
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IF_BDATA(real,imaginary)(TypedObject, 39, InitTypedObjectModuleObject, OCLASP(TypedObjectModule)) \
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imaginary(GeneratorFunction, 40, InitIteratorClasses, dummy) \
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IF_BDATA(real,imaginary)(SIMD, 41, InitSIMDClass, OCLASP(SIMD)) \
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real(WeakSet, 42, InitWeakSetClass, OCLASP(WeakSet)) \
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IF_SAB(real,imaginary)(SharedInt8Array, 43, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Int8)) \
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IF_SAB(real,imaginary)(SharedUint8Array, 44, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Uint8)) \
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IF_SAB(real,imaginary)(SharedInt16Array, 45, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Int16)) \
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IF_SAB(real,imaginary)(SharedUint16Array, 46, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Uint16)) \
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IF_SAB(real,imaginary)(SharedInt32Array, 47, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Int32)) \
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IF_SAB(real,imaginary)(SharedUint32Array, 48, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Uint32)) \
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IF_SAB(real,imaginary)(SharedFloat32Array, 49, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Float32)) \
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IF_SAB(real,imaginary)(SharedFloat64Array, 50, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Float64)) \
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IF_SAB(real,imaginary)(SharedUint8ClampedArray, 51, InitViaClassSpec, SHARED_TYPED_ARRAY_CLASP(Uint8Clamped)) \
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real(TypedArray, 52, InitViaClassSpec, &js::TypedArrayObject::sharedTypedArrayPrototypeClass) \
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IF_SAB(real,imaginary)(Atomics, 53, InitAtomicsClass, OCLASP(Atomics)) \
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real(SavedFrame, 54, InitViaClassSpec, &js::SavedFrame::class_) \
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#define JS_FOR_EACH_PROTOTYPE(macro) JS_FOR_PROTOTYPES(macro,macro)
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#endif /* jsprototypes_h */
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