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-rw-r--r--Source/JavaScriptCore/bytecode/PutByIdFlags.h105
1 files changed, 0 insertions, 105 deletions
diff --git a/Source/JavaScriptCore/bytecode/PutByIdFlags.h b/Source/JavaScriptCore/bytecode/PutByIdFlags.h
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--- a/Source/JavaScriptCore/bytecode/PutByIdFlags.h
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-/*
- * 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 PutByIdFlags_h
-#define PutByIdFlags_h
-
-#include "StructureIDTable.h"
-
-namespace JSC {
-
-enum PutByIdFlags : intptr_t {
- PutByIdNone = 0,
-
- // This flag indicates that the put_by_id is direct. That means that we store the property without
- // checking if the prototype chain has a setter.
- PutByIdIsDirect = 0x1,
- PutByIdPersistentFlagsMask = 0x1,
-
- // NOTE: The values below must be in sync with what is in LowLevelInterpreter.asm.
-
- // Determining the required inferred type involves first checking the primary type mask, and then
- // using that to figure out the meaning of the secondary mask:
- // switch (flags & PutByIdPrimaryTypeMask) {
- // case PutByIdPrimaryTypeSecondary:
- // switch (flags & PutByIdSecondaryTypeMask) {
- // ...
- // }
- // break;
- // case PutByIdPrimaryTypeObjectWithStructure:
- // case PutByIdPrimaryTypeObjectWithStructureOrOther:
- // StructureID structureID = decodeStructureID(flags);
- // break;
- // }
- PutByIdPrimaryTypeMask = 0x6,
- PutByIdPrimaryTypeSecondary = 0x0, // Need to check the secondary type mask for the type.
- PutByIdPrimaryTypeObjectWithStructure = 0x2, // Secondary type has structure ID.
- PutByIdPrimaryTypeObjectWithStructureOrOther = 0x4, // Secondary type has structure ID.
-
- PutByIdSecondaryTypeMask = -0x8,
- PutByIdSecondaryTypeBottom = 0x0,
- PutByIdSecondaryTypeBoolean = 0x8,
- PutByIdSecondaryTypeOther = 0x10,
- PutByIdSecondaryTypeInt32 = 0x18,
- PutByIdSecondaryTypeNumber = 0x20,
- PutByIdSecondaryTypeString = 0x28,
- PutByIdSecondaryTypeSymbol = 0x30,
- PutByIdSecondaryTypeObject = 0x38,
- PutByIdSecondaryTypeObjectOrOther = 0x40,
- PutByIdSecondaryTypeTop = 0x48
-};
-
-inline PutByIdFlags encodeStructureID(StructureID id)
-{
-#if USE(JSVALUE64)
- return static_cast<PutByIdFlags>(static_cast<PutByIdFlags>(id) << 3);
-#else
- PutByIdFlags result = bitwise_cast<PutByIdFlags>(id);
- ASSERT(!(result & ~PutByIdSecondaryTypeMask));
- return result;
-#endif
-}
-
-inline StructureID decodeStructureID(PutByIdFlags flags)
-{
-#if USE(JSVALUE64)
- return static_cast<StructureID>(flags >> 3);
-#else
- return bitwise_cast<StructureID>(flags & PutByIdSecondaryTypeMask);
-#endif
-}
-
-} // namespace JSC
-
-namespace WTF {
-
-class PrintStream;
-
-void printInternal(PrintStream&, JSC::PutByIdFlags);
-
-} // namespace WTF
-
-#endif // PutByIdFlags_h
-