mirror of
https://github.com/mozilla/gecko-dev.git
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2824b29025
This patch was mostly generated by running the following scripts on the codebase, with some
manual changes made afterwards:
# static_assert.sh
#!/bin/bash
# Command to convert an NSPR integer type to the equivalent standard integer type
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*/.hg*" \
! -wholename "obj-ff-dbg*" \
! -name nsXPCOMCID.h \
! -name prtypes.h \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.cc" \
-o -iname "*.mm" \) | \
xargs -n 1 `dirname $0`/assert_replacer.py #sed -i -e "s/\b$1\b/$2/g"
}
convert MOZ_STATIC_ASSERT static_assert
hg rev --no-backup mfbt/Assertions.h \
media/webrtc/signaling/src/sipcc/core/includes/ccapi.h \
modules/libmar/src/mar_private.h \
modules/libmar/src/mar.h
# assert_replacer.py
#!/usr/bin/python
import sys
import re
pattern = re.compile(r"\bMOZ_STATIC_ASSERT\b")
def replaceInPlace(fname):
print fname
f = open(fname, "rw+")
lines = f.readlines()
for i in range(0, len(lines)):
while True:
index = re.search(pattern, lines[i])
if index != None:
index = index.start()
lines[i] = lines[i][0:index] + "static_assert" + lines[i][index+len("MOZ_STATIC_ASSERT"):]
for j in range(i + 1, len(lines)):
if lines[j].find(" ", index) == index:
lines[j] = lines[j][0:index] + lines[j][index+4:]
else:
break
else:
break
f.seek(0, 0)
f.truncate()
f.write("".join(lines))
f.close()
argc = len(sys.argv)
for i in range(1, argc):
replaceInPlace(sys.argv[i])
--HG--
extra : rebase_source : 4b4a4047d82f2c205b9fad8d56dfc3f1afc0b045
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsRuleData.h"
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#include "mozilla/Poison.h"
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#include <stdint.h>
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inline size_t
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nsRuleData::GetPoisonOffset()
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{
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// Fill in mValueOffsets such that mValueStorage + mValueOffsets[i]
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// will yield the frame poison value for all uninitialized value
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// offsets.
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static_assert(sizeof(uintptr_t) == sizeof(size_t),
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"expect uintptr_t and size_t to be the same size");
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static_assert(uintptr_t(-1) > uintptr_t(0),
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"expect uintptr_t to be unsigned");
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static_assert(size_t(-1) > size_t(0),
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"expect size_t to be unsigned");
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uintptr_t framePoisonValue = mozPoisonValue();
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return size_t(framePoisonValue - uintptr_t(mValueStorage)) /
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sizeof(nsCSSValue);
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}
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nsRuleData::nsRuleData(uint32_t aSIDs, nsCSSValue* aValueStorage,
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nsPresContext* aContext, nsStyleContext* aStyleContext)
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: mSIDs(aSIDs),
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mCanStoreInRuleTree(true),
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mPresContext(aContext),
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mStyleContext(aStyleContext),
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mValueStorage(aValueStorage)
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{
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#ifndef MOZ_VALGRIND
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size_t framePoisonOffset = GetPoisonOffset();
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for (size_t i = 0; i < nsStyleStructID_Length; ++i) {
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mValueOffsets[i] = framePoisonOffset;
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}
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#endif
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}
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#ifdef DEBUG
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nsRuleData::~nsRuleData()
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{
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#ifndef MOZ_VALGRIND
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// assert nothing in mSIDs has poison value
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size_t framePoisonOffset = GetPoisonOffset();
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for (size_t i = 0; i < nsStyleStructID_Length; ++i) {
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NS_ABORT_IF_FALSE(!(mSIDs & (1 << i)) ||
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mValueOffsets[i] != framePoisonOffset,
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"value in SIDs was left with poison offset");
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}
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#endif
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}
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#endif
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