eb0ba90b0a
in most cases, the main advantage is not using toQString(m_tmp), which reduces the possibility of raw data leaks. in cases where we used toQString() without temporary, this is a slight optimization. Change-Id: Ib343acffd383aa2c4fefab75fb52762fb534dfc6 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
521 lines
14 KiB
C++
521 lines
14 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the qmake application of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "proitems.h"
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#include <qfileinfo.h>
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#include <qset.h>
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#include <qstringlist.h>
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#include <qtextstream.h>
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QT_BEGIN_NAMESPACE
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// from qhash.cpp
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uint ProString::hash(const QChar *p, int n)
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{
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uint h = 0;
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while (n--) {
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h = (h << 4) + (*p++).unicode();
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h ^= (h & 0xf0000000) >> 23;
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h &= 0x0fffffff;
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}
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return h;
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}
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ProString::ProString() :
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m_offset(0), m_length(0), m_file(0), m_hash(0x80000000)
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{
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}
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ProString::ProString(const ProString &other) :
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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)
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{
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}
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ProString::ProString(const ProString &other, OmitPreHashing) :
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m_string(other.m_string), m_offset(other.m_offset), m_length(other.m_length), m_file(other.m_file), m_hash(0x80000000)
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{
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}
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ProString::ProString(const QString &str, DoPreHashing) :
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m_string(str), m_offset(0), m_length(str.length()), m_file(0)
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{
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updatedHash();
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}
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ProString::ProString(const QString &str) :
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m_string(str), m_offset(0), m_length(str.length()), m_file(0), m_hash(0x80000000)
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{
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}
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ProString::ProString(const QStringRef &str) :
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m_string(*str.string()), m_offset(str.position()), m_length(str.size()), m_file(0), m_hash(0x80000000)
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{
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}
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ProString::ProString(const char *str, DoPreHashing) :
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m_string(QString::fromLatin1(str)), m_offset(0), m_length(qstrlen(str)), m_file(0)
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{
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updatedHash();
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}
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ProString::ProString(const char *str) :
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m_string(QString::fromLatin1(str)), m_offset(0), m_length(qstrlen(str)), m_file(0), m_hash(0x80000000)
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{
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}
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ProString::ProString(const QString &str, int offset, int length, DoPreHashing) :
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m_string(str), m_offset(offset), m_length(length), m_file(0)
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{
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updatedHash();
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}
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ProString::ProString(const QString &str, int offset, int length, uint hash) :
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m_string(str), m_offset(offset), m_length(length), m_file(0), m_hash(hash)
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{
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}
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ProString::ProString(const QString &str, int offset, int length) :
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m_string(str), m_offset(offset), m_length(length), m_file(0), m_hash(0x80000000)
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{
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}
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void ProString::setValue(const QString &str)
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{
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m_string = str, m_offset = 0, m_length = str.length(), m_hash = 0x80000000;
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}
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uint ProString::updatedHash() const
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{
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return (m_hash = hash(m_string.constData() + m_offset, m_length));
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}
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uint qHash(const ProString &str)
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{
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if (!(str.m_hash & 0x80000000))
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return str.m_hash;
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return str.updatedHash();
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}
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ProKey::ProKey(const QString &str) :
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ProString(str, DoHash)
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{
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}
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ProKey::ProKey(const char *str) :
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ProString(str, DoHash)
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{
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}
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ProKey::ProKey(const QString &str, int off, int len) :
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ProString(str, off, len, DoHash)
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{
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}
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ProKey::ProKey(const QString &str, int off, int len, uint hash) :
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ProString(str, off, len, hash)
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{
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}
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void ProKey::setValue(const QString &str)
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{
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m_string = str, m_offset = 0, m_length = str.length();
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updatedHash();
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}
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QString ProString::toQString() const
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{
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return m_string.mid(m_offset, m_length);
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}
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QString &ProString::toQString(QString &tmp) const
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{
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return tmp.setRawData(m_string.constData() + m_offset, m_length);
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}
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/*
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* \brief ProString::prepareExtend
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* \param extraLen number of new characters to be added
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* \param thisTarget offset to which current contents should be moved
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* \param extraTarget offset at which new characters will be added
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* \return pointer to storage location for new characters
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*
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* Prepares the string for adding new characters.
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* If the string is detached and has enough space, it will be changed in place.
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* Otherwise, it will be replaced with a new string object, thus detaching.
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* In either case, the hash will be reset.
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*/
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QChar *ProString::prepareExtend(int extraLen, int thisTarget, int extraTarget)
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{
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if (m_string.isDetached() && m_length + extraLen <= m_string.capacity()) {
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m_string.reserve(0); // Prevent the resize() below from reallocating
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QChar *ptr = (QChar *)m_string.constData();
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if (m_offset != thisTarget)
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memmove(ptr + thisTarget, ptr + m_offset, m_length * 2);
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ptr += extraTarget;
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m_offset = 0;
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m_length += extraLen;
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m_string.resize(m_length);
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m_hash = 0x80000000;
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return ptr;
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} else {
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QString neu(m_length + extraLen, Qt::Uninitialized);
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QChar *ptr = (QChar *)neu.constData();
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memcpy(ptr + thisTarget, m_string.constData() + m_offset, m_length * 2);
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ptr += extraTarget;
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*this = ProString(neu);
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return ptr;
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}
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}
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ProString &ProString::prepend(const ProString &other)
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{
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if (other.m_length) {
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if (!m_length) {
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*this = other;
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} else {
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QChar *ptr = prepareExtend(other.m_length, other.m_length, 0);
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memcpy(ptr, other.constData(), other.m_length * 2);
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if (!m_file)
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m_file = other.m_file;
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}
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}
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return *this;
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}
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ProString &ProString::append(const QLatin1String other)
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{
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const char *latin1 = other.latin1();
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int size = other.size();
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if (size) {
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QChar *ptr = prepareExtend(size, 0, m_length);
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for (int i = 0; i < size; i++)
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*ptr++ = QLatin1Char(latin1[i]);
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}
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return *this;
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}
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ProString &ProString::append(QChar other)
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{
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QChar *ptr = prepareExtend(1, 0, m_length);
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*ptr = other;
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return *this;
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}
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// If pending != 0, prefix with space if appending to non-empty non-pending
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ProString &ProString::append(const ProString &other, bool *pending)
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{
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if (other.m_length) {
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if (!m_length) {
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*this = other;
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} else {
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QChar *ptr;
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if (pending && !*pending) {
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ptr = prepareExtend(1 + other.m_length, 0, m_length);
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*ptr++ = 32;
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} else {
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ptr = prepareExtend(other.m_length, 0, m_length);
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}
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memcpy(ptr, other.m_string.constData() + other.m_offset, other.m_length * 2);
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if (other.m_file)
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m_file = other.m_file;
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}
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if (pending)
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*pending = true;
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}
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return *this;
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}
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ProString &ProString::append(const ProStringList &other, bool *pending, bool skipEmpty1st)
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{
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if (const int sz = other.size()) {
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int startIdx = 0;
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if (pending && !*pending && skipEmpty1st && other.at(0).isEmpty()) {
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if (sz == 1)
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return *this;
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startIdx = 1;
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}
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if (!m_length && sz == startIdx + 1) {
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*this = other.at(startIdx);
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} else {
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int totalLength = sz - startIdx;
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for (int i = startIdx; i < sz; ++i)
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totalLength += other.at(i).size();
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bool putSpace = false;
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if (pending && !*pending && m_length)
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putSpace = true;
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else
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totalLength--;
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QChar *ptr = prepareExtend(totalLength, 0, m_length);
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for (int i = startIdx; i < sz; ++i) {
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if (putSpace)
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*ptr++ = 32;
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else
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putSpace = true;
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const ProString &str = other.at(i);
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memcpy(ptr, str.m_string.constData() + str.m_offset, str.m_length * 2);
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ptr += str.m_length;
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}
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if (other.last().m_file)
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m_file = other.last().m_file;
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}
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if (pending)
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*pending = true;
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}
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return *this;
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}
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QString operator+(const ProString &one, const ProString &two)
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{
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if (two.m_length) {
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if (!one.m_length) {
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return two.toQString();
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} else {
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QString neu(one.m_length + two.m_length, Qt::Uninitialized);
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ushort *ptr = (ushort *)neu.constData();
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memcpy(ptr, one.m_string.constData() + one.m_offset, one.m_length * 2);
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memcpy(ptr + one.m_length, two.m_string.constData() + two.m_offset, two.m_length * 2);
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return neu;
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}
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}
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return one.toQString();
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}
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ProString ProString::mid(int off, int len) const
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{
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ProString ret(*this, NoHash);
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if (off > m_length)
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off = m_length;
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ret.m_offset += off;
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ret.m_length -= off;
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if ((uint)ret.m_length > (uint)len) // Unsigned comparison to interpret < 0 as infinite
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ret.m_length = len;
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return ret;
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}
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ProString ProString::trimmed() const
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{
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ProString ret(*this, NoHash);
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int cur = m_offset;
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int end = cur + m_length;
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const QChar *data = m_string.constData();
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for (; cur < end; cur++)
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if (!data[cur].isSpace()) {
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// No underrun check - we know there is at least one non-whitespace
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while (data[end - 1].isSpace())
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end--;
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break;
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}
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ret.m_offset = cur;
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ret.m_length = end - cur;
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return ret;
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}
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QTextStream &operator<<(QTextStream &t, const ProString &str)
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{
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t << str.toQStringRef();
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return t;
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}
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static QString ProStringList_join(const ProStringList &this_, const QChar *sep, const int sepSize)
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{
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int totalLength = 0;
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const int sz = this_.size();
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for (int i = 0; i < sz; ++i)
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totalLength += this_.at(i).size();
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if (sz)
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totalLength += sepSize * (sz - 1);
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QString res(totalLength, Qt::Uninitialized);
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QChar *ptr = (QChar *)res.constData();
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for (int i = 0; i < sz; ++i) {
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if (i) {
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memcpy(ptr, sep, sepSize * sizeof(QChar));
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ptr += sepSize;
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}
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const ProString &str = this_.at(i);
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memcpy(ptr, str.constData(), str.size() * sizeof(QChar));
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ptr += str.size();
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}
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return res;
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}
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QString ProStringList::join(const ProString &sep) const
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{
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return ProStringList_join(*this, sep.constData(), sep.size());
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}
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QString ProStringList::join(const QString &sep) const
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{
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return ProStringList_join(*this, sep.constData(), sep.size());
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}
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QString ProStringList::join(QChar sep) const
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{
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return ProStringList_join(*this, &sep, 1);
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}
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void ProStringList::removeAll(const ProString &str)
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{
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for (int i = size(); --i >= 0; )
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if (at(i) == str)
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remove(i);
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}
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void ProStringList::removeAll(const char *str)
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{
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for (int i = size(); --i >= 0; )
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if (at(i) == str)
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remove(i);
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}
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void ProStringList::removeEach(const ProStringList &value)
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{
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for (const ProString &str : value) {
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if (isEmpty())
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break;
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if (!str.isEmpty())
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removeAll(str);
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}
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}
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void ProStringList::removeEmpty()
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{
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for (int i = size(); --i >= 0;)
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if (at(i).isEmpty())
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remove(i);
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}
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void ProStringList::removeDuplicates()
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{
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int n = size();
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int j = 0;
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QSet<ProString> seen;
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seen.reserve(n);
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for (int i = 0; i < n; ++i) {
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const ProString &s = at(i);
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if (seen.contains(s))
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continue;
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seen.insert(s);
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if (j != i)
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(*this)[j] = s;
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++j;
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}
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if (n != j)
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erase(begin() + j, end());
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}
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void ProStringList::insertUnique(const ProStringList &value)
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{
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for (const ProString &str : value)
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if (!str.isEmpty() && !contains(str))
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append(str);
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}
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ProStringList::ProStringList(const QStringList &list)
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{
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reserve(list.size());
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for (const QString &str : list)
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*this << ProString(str);
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}
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QStringList ProStringList::toQStringList() const
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{
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QStringList ret;
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ret.reserve(size());
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for (const auto &e : *this)
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ret.append(e.toQString());
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return ret;
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}
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bool ProStringList::contains(const ProString &str, Qt::CaseSensitivity cs) const
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{
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for (int i = 0; i < size(); i++)
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if (!at(i).compare(str, cs))
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return true;
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return false;
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}
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bool ProStringList::contains(const QStringRef &str, Qt::CaseSensitivity cs) const
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{
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for (int i = 0; i < size(); i++)
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if (!at(i).toQStringRef().compare(str, cs))
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return true;
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return false;
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}
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bool ProStringList::contains(const char *str, Qt::CaseSensitivity cs) const
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{
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for (int i = 0; i < size(); i++)
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if (!at(i).compare(str, cs))
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return true;
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return false;
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}
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ProFile::ProFile(int id, const QString &fileName)
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: m_refCount(1),
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m_fileName(fileName),
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m_id(id),
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m_ok(true),
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m_hostBuild(false)
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{
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if (!fileName.startsWith(QLatin1Char('(')))
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m_directoryName = QFileInfo( // qmake sickness: canonicalize only the directory!
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fileName.left(fileName.lastIndexOf(QLatin1Char('/')))).canonicalFilePath();
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}
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ProFile::~ProFile()
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{
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}
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ProString ProFile::getStr(const ushort *&tPtr)
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{
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uint len = *tPtr++;
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ProString ret(items(), tPtr - tokPtr(), len);
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ret.setSource(m_id);
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tPtr += len;
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return ret;
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}
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ProKey ProFile::getHashStr(const ushort *&tPtr)
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{
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uint hash = *tPtr++;
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hash |= (uint)*tPtr++ << 16;
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uint len = *tPtr++;
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ProKey ret(items(), tPtr - tokPtr(), len, hash);
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tPtr += len;
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return ret;
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}
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QT_END_NAMESPACE
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