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Diffstat (limited to 'Source/JavaScriptCore/runtime/GenericArguments.h')
| -rw-r--r-- | Source/JavaScriptCore/runtime/GenericArguments.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/runtime/GenericArguments.h b/Source/JavaScriptCore/runtime/GenericArguments.h new file mode 100644 index 000000000..67f1b0345 --- /dev/null +++ b/Source/JavaScriptCore/runtime/GenericArguments.h @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2015 Apple 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 INC. ``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 INC. OR + * 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 GenericArguments_h +#define GenericArguments_h + +#include "JSObject.h" + +namespace JSC { + +// This is a mixin for the two kinds of Arguments-class objects that arise when you say +// "arguments" inside a function. This class doesn't show up in the JSCell inheritance hierarchy. +template<typename Type> +class GenericArguments : public JSNonFinalObject { +public: + typedef JSNonFinalObject Base; + static const unsigned StructureFlags = Base::StructureFlags | OverridesGetOwnPropertySlot | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero | OverridesGetPropertyNames; + +protected: + GenericArguments(VM& vm, Structure* structure) + : Base(vm, structure) + { + } + + static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&); + static bool getOwnPropertySlotByIndex(JSObject*, ExecState*, unsigned propertyName, PropertySlot&); + static void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); + static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&); + static void putByIndex(JSCell*, ExecState*, unsigned propertyName, JSValue, bool shouldThrow); + static bool deleteProperty(JSCell*, ExecState*, PropertyName); + static bool deletePropertyByIndex(JSCell*, ExecState*, unsigned propertyName); + static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow); + + void copyToArguments(ExecState*, VirtualRegister firstElementDest, unsigned offset, unsigned length); +}; + +} // namespace JSC + +#endif // GenericArguments_h + |