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gecko/layout/style/nsStyleCoord.cpp
Ehsan Akhgari 5ee21d6d3f Bug 895322 - Part 1: Replace the usages of MOZ_STATIC_ASSERT with C++11 static_assert; r=Waldo 
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
2013-07-18 13:59:53 -04:00

340 lines
9.8 KiB
C++
Raw Blame History

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* representation of length values in computed style data */
#include "nsStyleCoord.h"
#include "mozilla/HashFunctions.h"
nsStyleCoord::nsStyleCoord(nsStyleUnit aUnit)
: mUnit(aUnit)
{
NS_ASSERTION(aUnit < eStyleUnit_Percent, "not a valueless unit");
if (aUnit >= eStyleUnit_Percent) {
mUnit = eStyleUnit_Null;
}
mValue.mInt = 0;
}
nsStyleCoord::nsStyleCoord(int32_t aValue, nsStyleUnit aUnit)
: mUnit(aUnit)
{
//if you want to pass in eStyleUnit_Coord, don't. instead, use the
//constructor just above this one... MMP
NS_ASSERTION((aUnit == eStyleUnit_Enumerated) ||
(aUnit == eStyleUnit_Integer), "not an int value");
if ((aUnit == eStyleUnit_Enumerated) ||
(aUnit == eStyleUnit_Integer)) {
mValue.mInt = aValue;
}
else {
mUnit = eStyleUnit_Null;
mValue.mInt = 0;
}
}
nsStyleCoord::nsStyleCoord(float aValue, nsStyleUnit aUnit)
: mUnit(aUnit)
{
if (aUnit < eStyleUnit_Percent || aUnit >= eStyleUnit_Coord) {
NS_NOTREACHED("not a float value");
Reset();
} else {
mValue.mFloat = aValue;
}
}
bool nsStyleCoord::operator==(const nsStyleCoord& aOther) const
{
if (mUnit != aOther.mUnit) {
return false;
}
switch (mUnit) {
case eStyleUnit_Null:
case eStyleUnit_Normal:
case eStyleUnit_Auto:
case eStyleUnit_None:
return true;
case eStyleUnit_Percent:
case eStyleUnit_Factor:
case eStyleUnit_Degree:
case eStyleUnit_Grad:
case eStyleUnit_Radian:
case eStyleUnit_Turn:
return mValue.mFloat == aOther.mValue.mFloat;
case eStyleUnit_Coord:
case eStyleUnit_Integer:
case eStyleUnit_Enumerated:
return mValue.mInt == aOther.mValue.mInt;
case eStyleUnit_Calc:
return *this->GetCalcValue() == *aOther.GetCalcValue();
}
NS_ABORT_IF_FALSE(false, "unexpected unit");
return false;
}
uint32_t nsStyleCoord::HashValue(uint32_t aHash = 0) const
{
aHash = mozilla::AddToHash(aHash, mUnit);
switch (mUnit) {
case eStyleUnit_Null:
case eStyleUnit_Normal:
case eStyleUnit_Auto:
case eStyleUnit_None:
return mozilla::AddToHash(aHash, true);
case eStyleUnit_Percent:
case eStyleUnit_Factor:
case eStyleUnit_Degree:
case eStyleUnit_Grad:
case eStyleUnit_Radian:
case eStyleUnit_Turn:
return mozilla::AddToHash(aHash, mValue.mFloat);
case eStyleUnit_Coord:
case eStyleUnit_Integer:
case eStyleUnit_Enumerated:
return mozilla::AddToHash(aHash, mValue.mInt);
case eStyleUnit_Calc:
Calc* calcValue = GetCalcValue();
aHash = mozilla::AddToHash(aHash, calcValue->mLength);
if (HasPercent()) {
return mozilla::AddToHash(aHash, calcValue->mPercent);
}
return aHash;
}
NS_ABORT_IF_FALSE(false, "unexpected unit");
return aHash;
}
void nsStyleCoord::Reset()
{
mUnit = eStyleUnit_Null;
mValue.mInt = 0;
}
void nsStyleCoord::SetCoordValue(nscoord aValue)
{
mUnit = eStyleUnit_Coord;
mValue.mInt = aValue;
}
void nsStyleCoord::SetIntValue(int32_t aValue, nsStyleUnit aUnit)
{
NS_ASSERTION((aUnit == eStyleUnit_Enumerated) ||
(aUnit == eStyleUnit_Integer), "not an int value");
if ((aUnit == eStyleUnit_Enumerated) ||
(aUnit == eStyleUnit_Integer)) {
mUnit = aUnit;
mValue.mInt = aValue;
}
else {
Reset();
}
}
void nsStyleCoord::SetPercentValue(float aValue)
{
mUnit = eStyleUnit_Percent;
mValue.mFloat = aValue;
}
void nsStyleCoord::SetFactorValue(float aValue)
{
mUnit = eStyleUnit_Factor;
mValue.mFloat = aValue;
}
void nsStyleCoord::SetAngleValue(float aValue, nsStyleUnit aUnit)
{
if (aUnit == eStyleUnit_Degree ||
aUnit == eStyleUnit_Grad ||
aUnit == eStyleUnit_Radian ||
aUnit == eStyleUnit_Turn) {
mUnit = aUnit;
mValue.mFloat = aValue;
} else {
NS_NOTREACHED("not an angle value");
Reset();
}
}
void nsStyleCoord::SetCalcValue(Calc* aValue)
{
mUnit = eStyleUnit_Calc;
mValue.mPointer = aValue;
}
void nsStyleCoord::SetNormalValue()
{
mUnit = eStyleUnit_Normal;
mValue.mInt = 0;
}
void nsStyleCoord::SetAutoValue()
{
mUnit = eStyleUnit_Auto;
mValue.mInt = 0;
}
void nsStyleCoord::SetNoneValue()
{
mUnit = eStyleUnit_None;
mValue.mInt = 0;
}
// accessors that are not inlined
double
nsStyleCoord::GetAngleValueInRadians() const
{
double angle = mValue.mFloat;
switch (GetUnit()) {
case eStyleUnit_Radian: return angle;
case eStyleUnit_Turn: return angle * 2 * M_PI;
case eStyleUnit_Degree: return angle * M_PI / 180.0;
case eStyleUnit_Grad: return angle * M_PI / 200.0;
default:
NS_NOTREACHED("unrecognized angular unit");
return 0.0;
}
}
nsStyleSides::nsStyleSides()
{
memset(this, 0x00, sizeof(nsStyleSides));
}
bool nsStyleSides::operator==(const nsStyleSides& aOther) const
{
NS_FOR_CSS_SIDES(i) {
if (nsStyleCoord(mValues[i], (nsStyleUnit)mUnits[i]) !=
nsStyleCoord(aOther.mValues[i], (nsStyleUnit)aOther.mUnits[i])) {
return false;
}
}
return true;
}
void nsStyleSides::Reset()
{
memset(this, 0x00, sizeof(nsStyleSides));
}
nsStyleCorners::nsStyleCorners()
{
memset(this, 0x00, sizeof(nsStyleCorners));
}
bool
nsStyleCorners::operator==(const nsStyleCorners& aOther) const
{
NS_FOR_CSS_HALF_CORNERS(i) {
if (nsStyleCoord(mValues[i], (nsStyleUnit)mUnits[i]) !=
nsStyleCoord(aOther.mValues[i], (nsStyleUnit)aOther.mUnits[i])) {
return false;
}
}
return true;
}
void nsStyleCorners::Reset()
{
memset(this, 0x00, sizeof(nsStyleCorners));
}
// Validation of NS_SIDE_IS_VERTICAL and NS_HALF_CORNER_IS_X.
#define CASE(side, result) \
static_assert(NS_SIDE_IS_VERTICAL(side) == result, \
"NS_SIDE_IS_VERTICAL is wrong")
CASE(NS_SIDE_TOP, false);
CASE(NS_SIDE_RIGHT, true);
CASE(NS_SIDE_BOTTOM, false);
CASE(NS_SIDE_LEFT, true);
#undef CASE
#define CASE(corner, result) \
static_assert(NS_HALF_CORNER_IS_X(corner) == result, \
"NS_HALF_CORNER_IS_X is wrong")
CASE(NS_CORNER_TOP_LEFT_X, true);
CASE(NS_CORNER_TOP_LEFT_Y, false);
CASE(NS_CORNER_TOP_RIGHT_X, true);
CASE(NS_CORNER_TOP_RIGHT_Y, false);
CASE(NS_CORNER_BOTTOM_RIGHT_X, true);
CASE(NS_CORNER_BOTTOM_RIGHT_Y, false);
CASE(NS_CORNER_BOTTOM_LEFT_X, true);
CASE(NS_CORNER_BOTTOM_LEFT_Y, false);
#undef CASE
// Validation of NS_HALF_TO_FULL_CORNER.
#define CASE(corner, result) \
static_assert(NS_HALF_TO_FULL_CORNER(corner) == result, \
"NS_HALF_TO_FULL_CORNER is wrong")
CASE(NS_CORNER_TOP_LEFT_X, NS_CORNER_TOP_LEFT);
CASE(NS_CORNER_TOP_LEFT_Y, NS_CORNER_TOP_LEFT);
CASE(NS_CORNER_TOP_RIGHT_X, NS_CORNER_TOP_RIGHT);
CASE(NS_CORNER_TOP_RIGHT_Y, NS_CORNER_TOP_RIGHT);
CASE(NS_CORNER_BOTTOM_RIGHT_X, NS_CORNER_BOTTOM_RIGHT);
CASE(NS_CORNER_BOTTOM_RIGHT_Y, NS_CORNER_BOTTOM_RIGHT);
CASE(NS_CORNER_BOTTOM_LEFT_X, NS_CORNER_BOTTOM_LEFT);
CASE(NS_CORNER_BOTTOM_LEFT_Y, NS_CORNER_BOTTOM_LEFT);
#undef CASE
// Validation of NS_FULL_TO_HALF_CORNER.
#define CASE(corner, vert, result) \
static_assert(NS_FULL_TO_HALF_CORNER(corner, vert) == result, \
"NS_FULL_TO_HALF_CORNER is wrong")
CASE(NS_CORNER_TOP_LEFT, false, NS_CORNER_TOP_LEFT_X);
CASE(NS_CORNER_TOP_LEFT, true, NS_CORNER_TOP_LEFT_Y);
CASE(NS_CORNER_TOP_RIGHT, false, NS_CORNER_TOP_RIGHT_X);
CASE(NS_CORNER_TOP_RIGHT, true, NS_CORNER_TOP_RIGHT_Y);
CASE(NS_CORNER_BOTTOM_RIGHT, false, NS_CORNER_BOTTOM_RIGHT_X);
CASE(NS_CORNER_BOTTOM_RIGHT, true, NS_CORNER_BOTTOM_RIGHT_Y);
CASE(NS_CORNER_BOTTOM_LEFT, false, NS_CORNER_BOTTOM_LEFT_X);
CASE(NS_CORNER_BOTTOM_LEFT, true, NS_CORNER_BOTTOM_LEFT_Y);
#undef CASE
// Validation of NS_SIDE_TO_{FULL,HALF}_CORNER.
#define CASE(side, second, result) \
static_assert(NS_SIDE_TO_FULL_CORNER(side, second) == result, \
"NS_SIDE_TO_FULL_CORNER is wrong")
CASE(NS_SIDE_TOP, false, NS_CORNER_TOP_LEFT);
CASE(NS_SIDE_TOP, true, NS_CORNER_TOP_RIGHT);
CASE(NS_SIDE_RIGHT, false, NS_CORNER_TOP_RIGHT);
CASE(NS_SIDE_RIGHT, true, NS_CORNER_BOTTOM_RIGHT);
CASE(NS_SIDE_BOTTOM, false, NS_CORNER_BOTTOM_RIGHT);
CASE(NS_SIDE_BOTTOM, true, NS_CORNER_BOTTOM_LEFT);
CASE(NS_SIDE_LEFT, false, NS_CORNER_BOTTOM_LEFT);
CASE(NS_SIDE_LEFT, true, NS_CORNER_TOP_LEFT);
#undef CASE
#define CASE(side, second, parallel, result) \
static_assert(NS_SIDE_TO_HALF_CORNER(side, second, parallel) == result, \
"NS_SIDE_TO_HALF_CORNER is wrong")
CASE(NS_SIDE_TOP, false, true, NS_CORNER_TOP_LEFT_X);
CASE(NS_SIDE_TOP, false, false, NS_CORNER_TOP_LEFT_Y);
CASE(NS_SIDE_TOP, true, true, NS_CORNER_TOP_RIGHT_X);
CASE(NS_SIDE_TOP, true, false, NS_CORNER_TOP_RIGHT_Y);
CASE(NS_SIDE_RIGHT, false, false, NS_CORNER_TOP_RIGHT_X);
CASE(NS_SIDE_RIGHT, false, true, NS_CORNER_TOP_RIGHT_Y);
CASE(NS_SIDE_RIGHT, true, false, NS_CORNER_BOTTOM_RIGHT_X);
CASE(NS_SIDE_RIGHT, true, true, NS_CORNER_BOTTOM_RIGHT_Y);
CASE(NS_SIDE_BOTTOM, false, true, NS_CORNER_BOTTOM_RIGHT_X);
CASE(NS_SIDE_BOTTOM, false, false, NS_CORNER_BOTTOM_RIGHT_Y);
CASE(NS_SIDE_BOTTOM, true, true, NS_CORNER_BOTTOM_LEFT_X);
CASE(NS_SIDE_BOTTOM, true, false, NS_CORNER_BOTTOM_LEFT_Y);
CASE(NS_SIDE_LEFT, false, false, NS_CORNER_BOTTOM_LEFT_X);
CASE(NS_SIDE_LEFT, false, true, NS_CORNER_BOTTOM_LEFT_Y);
CASE(NS_SIDE_LEFT, true, false, NS_CORNER_TOP_LEFT_X);
CASE(NS_SIDE_LEFT, true, true, NS_CORNER_TOP_LEFT_Y);
#undef CASE
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