qt5base-lts/qmake/library/proitems.cpp
Marc Mutz d9229d849f qmake: eradicate Q_FOREACH loops [already const]
(or trivially marked const) ... by replacing them
with C++11 range-for loops.

Change-Id: I1522e220a57ecb1c5ee0d4281233b3c3931a2ff8
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-28 20:25:21 +00:00

499 lines
13 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the qmake application of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "proitems.h"
#include <qfileinfo.h>
#include <qset.h>
#include <qstringlist.h>
#include <qtextstream.h>
QT_BEGIN_NAMESPACE
// from qhash.cpp
uint ProString::hash(const QChar *p, int n)
{
uint h = 0;
while (n--) {
h = (h << 4) + (*p++).unicode();
h ^= (h & 0xf0000000) >> 23;
h &= 0x0fffffff;
}
return h;
}
ProString::ProString() :
m_offset(0), m_length(0), m_file(0), m_hash(0x80000000)
{
}
ProString::ProString(const ProString &other) :
m_string(other.m_string), m_offset(other.m_offset), m_length(other.m_length), m_file(other.m_file), m_hash(other.m_hash)
{
}
ProString::ProString(const ProString &other, OmitPreHashing) :
m_string(other.m_string), m_offset(other.m_offset), m_length(other.m_length), m_file(other.m_file), m_hash(0x80000000)
{
}
ProString::ProString(const QString &str, DoPreHashing) :
m_string(str), m_offset(0), m_length(str.length()), m_file(0)
{
updatedHash();
}
ProString::ProString(const QString &str) :
m_string(str), m_offset(0), m_length(str.length()), m_file(0), m_hash(0x80000000)
{
}
ProString::ProString(const char *str, DoPreHashing) :
m_string(QString::fromLatin1(str)), m_offset(0), m_length(qstrlen(str)), m_file(0)
{
updatedHash();
}
ProString::ProString(const char *str) :
m_string(QString::fromLatin1(str)), m_offset(0), m_length(qstrlen(str)), m_file(0), m_hash(0x80000000)
{
}
ProString::ProString(const QString &str, int offset, int length, DoPreHashing) :
m_string(str), m_offset(offset), m_length(length), m_file(0)
{
updatedHash();
}
ProString::ProString(const QString &str, int offset, int length, uint hash) :
m_string(str), m_offset(offset), m_length(length), m_file(0), m_hash(hash)
{
}
ProString::ProString(const QString &str, int offset, int length) :
m_string(str), m_offset(offset), m_length(length), m_file(0), m_hash(0x80000000)
{
}
void ProString::setValue(const QString &str)
{
m_string = str, m_offset = 0, m_length = str.length(), m_hash = 0x80000000;
}
uint ProString::updatedHash() const
{
return (m_hash = hash(m_string.constData() + m_offset, m_length));
}
uint qHash(const ProString &str)
{
if (!(str.m_hash & 0x80000000))
return str.m_hash;
return str.updatedHash();
}
ProKey::ProKey(const QString &str) :
ProString(str, DoHash)
{
}
ProKey::ProKey(const char *str) :
ProString(str, DoHash)
{
}
ProKey::ProKey(const QString &str, int off, int len) :
ProString(str, off, len, DoHash)
{
}
ProKey::ProKey(const QString &str, int off, int len, uint hash) :
ProString(str, off, len, hash)
{
}
void ProKey::setValue(const QString &str)
{
m_string = str, m_offset = 0, m_length = str.length();
updatedHash();
}
QString ProString::toQString() const
{
return m_string.mid(m_offset, m_length);
}
QString &ProString::toQString(QString &tmp) const
{
return tmp.setRawData(m_string.constData() + m_offset, m_length);
}
/*!
* \brief ProString::prepareExtend
* \param extraLen number of new characters to be added
* \param thisTarget offset to which current contents should be moved
* \param extraTarget offset at which new characters will be added
* \return pointer to storage location for new characters
*
* Prepares the string for adding new characters.
* If the string is detached and has enough space, it will be changed in place.
* Otherwise, it will be replaced with a new string object, thus detaching.
* In either case, the hash will be reset.
*/
QChar *ProString::prepareExtend(int extraLen, int thisTarget, int extraTarget)
{
if (m_string.isDetached() && m_length + extraLen <= m_string.capacity()) {
m_string.reserve(0); // Prevent the resize() below from reallocating
QChar *ptr = (QChar *)m_string.constData();
if (m_offset != thisTarget)
memmove(ptr + thisTarget, ptr + m_offset, m_length * 2);
ptr += extraTarget;
m_offset = 0;
m_length += extraLen;
m_string.resize(m_length);
m_hash = 0x80000000;
return ptr;
} else {
QString neu(m_length + extraLen, Qt::Uninitialized);
QChar *ptr = (QChar *)neu.constData();
memcpy(ptr + thisTarget, m_string.constData() + m_offset, m_length * 2);
ptr += extraTarget;
*this = ProString(neu);
return ptr;
}
}
ProString &ProString::prepend(const ProString &other)
{
if (other.m_length) {
if (!m_length) {
*this = other;
} else {
QChar *ptr = prepareExtend(other.m_length, other.m_length, 0);
memcpy(ptr, other.constData(), other.m_length * 2);
if (!m_file)
m_file = other.m_file;
}
}
return *this;
}
ProString &ProString::append(const QLatin1String other)
{
const char *latin1 = other.latin1();
int size = other.size();
if (size) {
QChar *ptr = prepareExtend(size, 0, m_length);
for (int i = 0; i < size; i++)
*ptr++ = QLatin1Char(latin1[i]);
}
return *this;
}
ProString &ProString::append(QChar other)
{
QChar *ptr = prepareExtend(1, 0, m_length);
*ptr = other;
return *this;
}
// If pending != 0, prefix with space if appending to non-empty non-pending
ProString &ProString::append(const ProString &other, bool *pending)
{
if (other.m_length) {
if (!m_length) {
*this = other;
} else {
QChar *ptr;
if (pending && !*pending) {
ptr = prepareExtend(1 + other.m_length, 0, m_length);
*ptr++ = 32;
} else {
ptr = prepareExtend(other.m_length, 0, m_length);
}
memcpy(ptr, other.m_string.constData() + other.m_offset, other.m_length * 2);
if (other.m_file)
m_file = other.m_file;
}
if (pending)
*pending = true;
}
return *this;
}
ProString &ProString::append(const ProStringList &other, bool *pending, bool skipEmpty1st)
{
if (const int sz = other.size()) {
int startIdx = 0;
if (pending && !*pending && skipEmpty1st && other.at(0).isEmpty()) {
if (sz == 1)
return *this;
startIdx = 1;
}
if (!m_length && sz == startIdx + 1) {
*this = other.at(startIdx);
} else {
int totalLength = sz - startIdx;
for (int i = startIdx; i < sz; ++i)
totalLength += other.at(i).size();
bool putSpace = false;
if (pending && !*pending && m_length)
putSpace = true;
else
totalLength--;
QChar *ptr = prepareExtend(totalLength, 0, m_length);
for (int i = startIdx; i < sz; ++i) {
if (putSpace)
*ptr++ = 32;
else
putSpace = true;
const ProString &str = other.at(i);
memcpy(ptr, str.m_string.constData() + str.m_offset, str.m_length * 2);
ptr += str.m_length;
}
if (other.last().m_file)
m_file = other.last().m_file;
}
if (pending)
*pending = true;
}
return *this;
}
QString operator+(const ProString &one, const ProString &two)
{
if (two.m_length) {
if (!one.m_length) {
return two.toQString();
} else {
QString neu(one.m_length + two.m_length, Qt::Uninitialized);
ushort *ptr = (ushort *)neu.constData();
memcpy(ptr, one.m_string.constData() + one.m_offset, one.m_length * 2);
memcpy(ptr + one.m_length, two.m_string.constData() + two.m_offset, two.m_length * 2);
return neu;
}
}
return one.toQString();
}
ProString ProString::mid(int off, int len) const
{
ProString ret(*this, NoHash);
if (off > m_length)
off = m_length;
ret.m_offset += off;
ret.m_length -= off;
if ((uint)ret.m_length > (uint)len) // Unsigned comparison to interpret < 0 as infinite
ret.m_length = len;
return ret;
}
ProString ProString::trimmed() const
{
ProString ret(*this, NoHash);
int cur = m_offset;
int end = cur + m_length;
const QChar *data = m_string.constData();
for (; cur < end; cur++)
if (!data[cur].isSpace()) {
// No underrun check - we know there is at least one non-whitespace
while (data[end - 1].isSpace())
end--;
break;
}
ret.m_offset = cur;
ret.m_length = end - cur;
return ret;
}
QTextStream &operator<<(QTextStream &t, const ProString &str)
{
t << str.toQString(); // XXX optimize ... somehow
return t;
}
static QString ProStringList_join(const ProStringList &this_, const QChar *sep, const int sepSize)
{
int totalLength = 0;
const int sz = this_.size();
for (int i = 0; i < sz; ++i)
totalLength += this_.at(i).size();
if (sz)
totalLength += sepSize * (sz - 1);
QString res(totalLength, Qt::Uninitialized);
QChar *ptr = (QChar *)res.constData();
for (int i = 0; i < sz; ++i) {
if (i) {
memcpy(ptr, sep, sepSize * sizeof(QChar));
ptr += sepSize;
}
const ProString &str = this_.at(i);
memcpy(ptr, str.constData(), str.size() * sizeof(QChar));
ptr += str.size();
}
return res;
}
QString ProStringList::join(const QString &sep) const
{
return ProStringList_join(*this, sep.constData(), sep.size());
}
QString ProStringList::join(QChar sep) const
{
return ProStringList_join(*this, &sep, 1);
}
void ProStringList::removeAll(const ProString &str)
{
for (int i = size(); --i >= 0; )
if (at(i) == str)
remove(i);
}
void ProStringList::removeAll(const char *str)
{
for (int i = size(); --i >= 0; )
if (at(i) == str)
remove(i);
}
void ProStringList::removeEach(const ProStringList &value)
{
for (const ProString &str : value)
if (!str.isEmpty())
removeAll(str);
}
void ProStringList::removeEmpty()
{
for (int i = size(); --i >= 0;)
if (at(i).isEmpty())
remove(i);
}
void ProStringList::removeDuplicates()
{
int n = size();
int j = 0;
QSet<ProString> seen;
seen.reserve(n);
for (int i = 0; i < n; ++i) {
const ProString &s = at(i);
if (seen.contains(s))
continue;
seen.insert(s);
if (j != i)
(*this)[j] = s;
++j;
}
if (n != j)
erase(begin() + j, end());
}
void ProStringList::insertUnique(const ProStringList &value)
{
for (const ProString &str : value)
if (!str.isEmpty() && !contains(str))
append(str);
}
ProStringList::ProStringList(const QStringList &list)
{
reserve(list.size());
for (const QString &str : list)
*this << ProString(str);
}
QStringList ProStringList::toQStringList() const
{
QStringList ret;
ret.reserve(size());
for (const auto &e : *this)
ret.append(e.toQString());
return ret;
}
bool ProStringList::contains(const ProString &str, Qt::CaseSensitivity cs) const
{
for (int i = 0; i < size(); i++)
if (!at(i).compare(str, cs))
return true;
return false;
}
bool ProStringList::contains(const char *str, Qt::CaseSensitivity cs) const
{
for (int i = 0; i < size(); i++)
if (!at(i).compare(str, cs))
return true;
return false;
}
ProFile::ProFile(const QString &fileName)
: m_refCount(1),
m_fileName(fileName),
m_ok(true),
m_hostBuild(false)
{
if (!fileName.startsWith(QLatin1Char('(')))
m_directoryName = QFileInfo( // qmake sickness: canonicalize only the directory!
fileName.left(fileName.lastIndexOf(QLatin1Char('/')))).canonicalFilePath();
}
ProFile::~ProFile()
{
}
ProString ProFile::getStr(const ushort *&tPtr)
{
uint len = *tPtr++;
ProString ret(items(), tPtr - tokPtr(), len);
ret.setSource(this);
tPtr += len;
return ret;
}
ProKey ProFile::getHashStr(const ushort *&tPtr)
{
uint hash = *tPtr++;
hash |= (uint)*tPtr++ << 16;
uint len = *tPtr++;
ProKey ret(items(), tPtr - tokPtr(), len, hash);
tPtr += len;
return ret;
}
QT_END_NAMESPACE