mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/*
|
|
* Copyright (C) 2017 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#if ENABLE(WEBASSEMBLY)
|
|
|
|
#include "B3Origin.h"
|
|
#include "WasmFormat.h"
|
|
|
|
#include <wtf/ForbidHeapAllocation.h>
|
|
|
|
namespace JSC { namespace Wasm {
|
|
|
|
class OpcodeOrigin {
|
|
WTF_FORBID_HEAP_ALLOCATION;
|
|
public:
|
|
OpcodeOrigin() = default;
|
|
OpcodeOrigin(OpType opcode, size_t offset)
|
|
{
|
|
ASSERT(static_cast<uint32_t>(offset) == offset);
|
|
packedData = (static_cast<uint64_t>(opcode) << 32) | offset;
|
|
}
|
|
|
|
void dump(PrintStream&) const;
|
|
|
|
OpType opcode() const { return static_cast<OpType>(packedData >> 32); }
|
|
size_t location() const { return static_cast<uint32_t>(packedData); }
|
|
|
|
private:
|
|
static_assert(sizeof(void*) == sizeof(uint64_t), "this packing doesn't work if this isn't the case");
|
|
uint64_t packedData { 0 };
|
|
};
|
|
|
|
} } // namespace JSC::Wasm
|
|
|
|
#endif // ENABLE(WEBASSEMBLY)
|