WebKit/Source/JavaScriptCore/tools/SourceProfiler.h at main · WebKit/WebKit · GitHub

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* 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

#include <JavaScriptCore/SourceCode.h>

namespace JSC {

namespace SourceProfiler {

// Do not change the order of the enums in Type. If we have new types to add,

// just append at the end.

enum class Type {

Program,

Eval,

Function,

Module,

};

// Do not change the order of the enums in CharacterSize. In the unlikely case

// where we have new CharacterSizes, just append them to the end.

enum class CharacterSize {

Char8Bit,

Char16Bit

};

// If we need to change the layout of Payload in a backward incompatible manner,

// bump the majorVersion. If we're just appending new fields to the current shape

// of Payload, then just bump the minorVersion.

constexpr unsigned majorVersion = 1;

constexpr unsigned minorVersion = 0;

struct Payload {

unsigned majorVersion;

unsigned minorVersion;

const void* sourceStr;

size_t sourceLength;

CharacterSize sourceCharSize;

const void* urlStr;

size_t urlLength;

CharacterSize urlCharSize;

};

using ProfilerHook = void (*)(Type, const Payload* payload);

extern JS_EXPORT_PRIVATE ProfilerHook g_profilerHook;

void profile(Type, const SourceCode&);

} // namespace SourceProfiler

} // namespace JSC

WebKit/Source/JavaScriptCore/tools/SourceProfiler.h at main · WebKit/WebKit · GitHub

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