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Diffstat (limited to 'src/corelib/kernel/qmetaobject_p.h')
| -rw-r--r-- | src/corelib/kernel/qmetaobject_p.h | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/src/corelib/kernel/qmetaobject_p.h b/src/corelib/kernel/qmetaobject_p.h new file mode 100644 index 0000000000..fdadf4ac9f --- /dev/null +++ b/src/corelib/kernel/qmetaobject_p.h @@ -0,0 +1,326 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QMETAOBJECT_P_H +#define QMETAOBJECT_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of moc. This header file may change from version to version without notice, +// or even be removed. +// +// We mean it. +// + +#include <QtCore/qglobal.h> +#include <QtCore/qobjectdefs.h> + +QT_BEGIN_NAMESPACE + +enum PropertyFlags { + Invalid = 0x00000000, + Readable = 0x00000001, + Writable = 0x00000002, + Resettable = 0x00000004, + EnumOrFlag = 0x00000008, + StdCppSet = 0x00000100, +// Override = 0x00000200, + Constant = 0x00000400, + Final = 0x00000800, + Designable = 0x00001000, + ResolveDesignable = 0x00002000, + Scriptable = 0x00004000, + ResolveScriptable = 0x00008000, + Stored = 0x00010000, + ResolveStored = 0x00020000, + Editable = 0x00040000, + ResolveEditable = 0x00080000, + User = 0x00100000, + ResolveUser = 0x00200000, + Notify = 0x00400000, + Revisioned = 0x00800000 +}; + +enum MethodFlags { + AccessPrivate = 0x00, + AccessProtected = 0x01, + AccessPublic = 0x02, + AccessMask = 0x03, //mask + + MethodMethod = 0x00, + MethodSignal = 0x04, + MethodSlot = 0x08, + MethodConstructor = 0x0c, + MethodTypeMask = 0x0c, + + MethodCompatibility = 0x10, + MethodCloned = 0x20, + MethodScriptable = 0x40, + MethodRevisioned = 0x80 +}; + +enum MetaObjectFlags { + DynamicMetaObject = 0x01 +}; + +class QMutex; + +struct QMetaObjectPrivate +{ + int revision; + int className; + int classInfoCount, classInfoData; + int methodCount, methodData; + int propertyCount, propertyData; + int enumeratorCount, enumeratorData; + int constructorCount, constructorData; //since revision 2 + int flags; //since revision 3 + int signalCount; //since revision 4 + // revision 5 introduces changes in normalized signatures, no new members + // revision 6 added qt_static_metacall as a member of each Q_OBJECT and inside QMetaObject itself + + static inline const QMetaObjectPrivate *get(const QMetaObject *metaobject) + { return reinterpret_cast<const QMetaObjectPrivate*>(metaobject->d.data); } + + static int indexOfSignalRelative(const QMetaObject **baseObject, + const char* name, + bool normalizeStringData); + static int indexOfSlotRelative(const QMetaObject **m, + const char *slot, + bool normalizeStringData); + static int originalClone(const QMetaObject *obj, int local_method_index); + +#ifndef QT_NO_QOBJECT + //defined in qobject.cpp + enum DisconnectType { DisconnectAll, DisconnectOne }; + static void memberIndexes(const QObject *obj, const QMetaMethod &member, + int *signalIndex, int *methodIndex); + static bool connect(const QObject *sender, int signal_index, + const QObject *receiver, int method_index_relative, + const QMetaObject *rmeta = 0, + int type = 0, int *types = 0); + static bool disconnect(const QObject *sender, int signal_index, + const QObject *receiver, int method_index, + DisconnectType = DisconnectAll); + static inline bool disconnectHelper(QObjectPrivate::Connection *c, + const QObject *receiver, int method_index, + QMutex *senderMutex, DisconnectType); +#endif +}; + +#ifndef UTILS_H +// mirrored in moc's utils.h +static inline bool is_ident_char(char s) +{ + return ((s >= 'a' && s <= 'z') + || (s >= 'A' && s <= 'Z') + || (s >= '0' && s <= '9') + || s == '_' + ); +} + +static inline bool is_space(char s) +{ + return (s == ' ' || s == '\t'); +} +#endif + +// This code is shared with moc.cpp +static QByteArray normalizeTypeInternal(const char *t, const char *e, bool fixScope = false, bool adjustConst = true) +{ + int len = e - t; + /* + Convert 'char const *' into 'const char *'. Start at index 1, + not 0, because 'const char *' is already OK. + */ + QByteArray constbuf; + for (int i = 1; i < len; i++) { + if ( t[i] == 'c' + && strncmp(t + i + 1, "onst", 4) == 0 + && (i + 5 >= len || !is_ident_char(t[i + 5])) + && !is_ident_char(t[i-1]) + ) { + constbuf = QByteArray(t, len); + if (is_space(t[i-1])) + constbuf.remove(i-1, 6); + else + constbuf.remove(i, 5); + constbuf.prepend("const "); + t = constbuf.data(); + e = constbuf.data() + constbuf.length(); + break; + } + /* + We musn't convert 'char * const *' into 'const char **' + and we must beware of 'Bar<const Bla>'. + */ + if (t[i] == '&' || t[i] == '*' ||t[i] == '<') + break; + } + if (adjustConst && e > t + 6 && strncmp("const ", t, 6) == 0) { + if (*(e-1) == '&') { // treat const reference as value + t += 6; + --e; + } else if (is_ident_char(*(e-1)) || *(e-1) == '>') { // treat const value as value + t += 6; + } + } + QByteArray result; + result.reserve(len); + +#if 1 + // consume initial 'const ' + if (strncmp("const ", t, 6) == 0) { + t+= 6; + result += "const "; + } +#endif + + // some type substitutions for 'unsigned x' + if (strncmp("unsigned", t, 8) == 0) { + // make sure "unsigned" is an isolated word before making substitutions + if (!t[8] || !is_ident_char(t[8])) { + if (strncmp(" int", t+8, 4) == 0) { + t += 8+4; + result += "uint"; + } else if (strncmp(" long", t+8, 5) == 0) { + if ((strlen(t + 8 + 5) < 4 || strncmp(t + 8 + 5, " int", 4) != 0) // preserve '[unsigned] long int' + && (strlen(t + 8 + 5) < 5 || strncmp(t + 8 + 5, " long", 5) != 0) // preserve '[unsigned] long long' + ) { + t += 8+5; + result += "ulong"; + } + } else if (strncmp(" short", t+8, 6) != 0 // preserve unsigned short + && strncmp(" char", t+8, 5) != 0) { // preserve unsigned char + // treat rest (unsigned) as uint + t += 8; + result += "uint"; + } + } + } else { + // discard 'struct', 'class', and 'enum'; they are optional + // and we don't want them in the normalized signature + struct { + const char *keyword; + int len; + } optional[] = { + { "struct ", 7 }, + { "class ", 6 }, + { "enum ", 5 }, + { 0, 0 } + }; + int i = 0; + do { + if (strncmp(optional[i].keyword, t, optional[i].len) == 0) { + t += optional[i].len; + break; + } + } while (optional[++i].keyword != 0); + } + + bool star = false; + while (t != e) { + char c = *t++; + if (fixScope && c == ':' && *t == ':' ) { + ++t; + c = *t++; + int i = result.size() - 1; + while (i >= 0 && is_ident_char(result.at(i))) + --i; + result.resize(i + 1); + } + star = star || c == '*'; + result += c; + if (c == '<') { + //template recursion + const char* tt = t; + int templdepth = 1; + while (t != e) { + c = *t++; + if (c == '<') + ++templdepth; + if (c == '>') + --templdepth; + if (templdepth == 0 || (templdepth == 1 && c == ',')) { + result += normalizeTypeInternal(tt, t-1, fixScope, false); + result += c; + if (templdepth == 0) { + if (*t == '>') + result += ' '; // avoid >> + break; + } + tt = t; + } + } + } + + // cv qualifers can appear after the type as well + if (!is_ident_char(c) && t != e && (e - t >= 5 && strncmp("const", t, 5) == 0) + && (e - t == 5 || !is_ident_char(t[5]))) { + t += 5; + while (t != e && is_space(*t)) + ++t; + if (adjustConst && t != e && *t == '&') { + // treat const ref as value + ++t; + } else if (adjustConst && !star) { + // treat const as value + } else if (!star) { + // move const to the front (but not if const comes after a *) + result.prepend("const "); + } else { + // keep const after a * + result += "const"; + } + } + } + + return result; +} + + +QT_END_NAMESPACE + +#endif + |