1/*
2 * Copyright (C) 2015-2016 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "SourceCode.h"
29#include <wtf/HashMap.h>
30#include <wtf/Lock.h>
31#include <wtf/text/WTFString.h>
32
33namespace JSC {
34
35class ScriptExecutable;
36
37struct FunctionOverrideInfo {
38 SourceCode sourceCode;
39 unsigned firstLine;
40 unsigned lineCount;
41 unsigned startColumn;
42 unsigned endColumn;
43 unsigned parametersStartOffset;
44 unsigned typeProfilingStartOffset;
45 unsigned typeProfilingEndOffset;
46};
47
48class FunctionOverrides {
49public:
50 using OverrideInfo = FunctionOverrideInfo;
51
52 static FunctionOverrides& overrides();
53 FunctionOverrides(const char* functionOverridesFileName);
54
55 static bool initializeOverrideFor(const SourceCode& origCode, OverrideInfo& result);
56
57 JS_EXPORT_PRIVATE static void reinstallOverrides();
58
59private:
60 void parseOverridesInFile(const AbstractLocker&, const char* fileName);
61 void clear(const AbstractLocker&) { m_entries.clear(); }
62
63 HashMap<String, String> m_entries;
64 Lock m_lock;
65};
66
67} // namespace JSC
68