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Diffstat (limited to 'src/tools/moc/generator.cpp')
| -rw-r--r-- | src/tools/moc/generator.cpp | 1312 |
1 files changed, 1312 insertions, 0 deletions
diff --git a/src/tools/moc/generator.cpp b/src/tools/moc/generator.cpp new file mode 100644 index 0000000..ae8a76e --- /dev/null +++ b/src/tools/moc/generator.cpp @@ -0,0 +1,1312 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the tools applications 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "generator.h" +#include "outputrevision.h" +#include "utils.h" +#include <QtCore/qmetatype.h> +#include <stdio.h> + +QT_BEGIN_NAMESPACE + +// if the flags change, you MUST to change it in qmetaobject.cpp too +enum PropertyFlags { + Invalid = 0x00000000, + Readable = 0x00000001, + Writable = 0x00000002, + Resettable = 0x00000004, + EnumOrFlag = 0x00000008, + StdCppSet = 0x00000100, +// Override = 0x00000200, + Designable = 0x00001000, + ResolveDesignable = 0x00002000, + Scriptable = 0x00004000, + ResolveScriptable = 0x00008000, + Stored = 0x00010000, + ResolveStored = 0x00020000, + Editable = 0x00040000, + ResolveEditable = 0x00080000, + User = 0x00100000, + ResolveUser = 0x00200000, + Notify = 0x00400000 +}; +enum MethodFlags { + AccessPrivate = 0x00, + AccessProtected = 0x01, + AccessPublic = 0x02, + MethodMethod = 0x00, + MethodSignal = 0x04, + MethodSlot = 0x08, + MethodConstructor = 0x0c, + MethodCompatibility = 0x10, + MethodCloned = 0x20, + MethodScriptable = 0x40 +}; + +uint qvariant_nameToType(const char* name) +{ + if (!name) + return 0; + + if (strcmp(name, "QVariant") == 0) + return 0xffffffff; + if (strcmp(name, "QCString") == 0) + return QMetaType::QByteArray; + if (strcmp(name, "Q_LLONG") == 0) + return QMetaType::LongLong; + if (strcmp(name, "Q_ULLONG") == 0) + return QMetaType::ULongLong; + if (strcmp(name, "QIconSet") == 0) + return QMetaType::QIcon; + + uint tp = QMetaType::type(name); + return tp < QMetaType::User ? tp : 0; +} + +/* + Returns true if the type is a QVariant types. +*/ +bool isVariantType(const char* type) +{ + return qvariant_nameToType(type) != 0; +} + +Generator::Generator(ClassDef *classDef, const QList<QByteArray> &metaTypes, FILE *outfile) + : out(outfile), cdef(classDef), metaTypes(metaTypes) +{ + if (cdef->superclassList.size()) + purestSuperClass = cdef->superclassList.first().first; +} + +static inline int lengthOfEscapeSequence(const QByteArray &s, int i) +{ + if (s.at(i) != '\\' || i >= s.length() - 1) + return 1; + const int startPos = i; + ++i; + char ch = s.at(i); + if (ch == 'x') { + ++i; + while (i < s.length() && is_hex_char(s.at(i))) + ++i; + } else if (is_octal_char(ch)) { + while (i < startPos + 4 + && i < s.length() + && is_octal_char(s.at(i))) { + ++i; + } + } else { // single character escape sequence + i = qMin(i + 1, s.length()); + } + return i - startPos; +} + +int Generator::strreg(const char *s) +{ + int idx = 0; + if (!s) + s = ""; + for (int i = 0; i < strings.size(); ++i) { + const QByteArray &str = strings.at(i); + if (str == s) + return idx; + idx += str.length() + 1; + for (int i = 0; i < str.length(); ++i) { + if (str.at(i) == '\\') { + int cnt = lengthOfEscapeSequence(str, i) - 1; + idx -= cnt; + i += cnt; + } + } + } + strings.append(s); + return idx; +} + +void Generator::generateCode() +{ + bool isQt = (cdef->classname == "Qt"); + bool isQObject = (cdef->classname == "QObject"); + bool isConstructible = !cdef->constructorList.isEmpty(); + +// +// build the data array +// + int i = 0; + + + // filter out undeclared enumerators and sets + { + QList<EnumDef> enumList; + for (i = 0; i < cdef->enumList.count(); ++i) { + EnumDef def = cdef->enumList.at(i); + if (cdef->enumDeclarations.contains(def.name)) { + enumList += def; + } + QByteArray alias = cdef->flagAliases.value(def.name); + if (cdef->enumDeclarations.contains(alias)) { + def.name = alias; + enumList += def; + } + } + cdef->enumList = enumList; + } + + + QByteArray qualifiedClassNameIdentifier = cdef->qualified; + qualifiedClassNameIdentifier.replace(':', '_'); + + int index = 12; + fprintf(out, "static const uint qt_meta_data_%s[] = {\n", qualifiedClassNameIdentifier.constData()); + fprintf(out, "\n // content:\n"); + fprintf(out, " %4d, // revision\n", 2); + fprintf(out, " %4d, // classname\n", strreg(cdef->qualified)); + fprintf(out, " %4d, %4d, // classinfo\n", cdef->classInfoList.count(), cdef->classInfoList.count() ? index : 0); + index += cdef->classInfoList.count() * 2; + + int methodCount = cdef->signalList.count() + cdef->slotList.count() + cdef->methodList.count(); + fprintf(out, " %4d, %4d, // methods\n", methodCount, methodCount ? index : 0); + index += methodCount * 5; + fprintf(out, " %4d, %4d, // properties\n", cdef->propertyList.count(), cdef->propertyList.count() ? index : 0); + index += cdef->propertyList.count() * 3; + if(cdef->notifyableProperties) + index += cdef->propertyList.count(); + fprintf(out, " %4d, %4d, // enums/sets\n", cdef->enumList.count(), cdef->enumList.count() ? index : 0); + + int enumsIndex = index; + for (i = 0; i < cdef->enumList.count(); ++i) + index += 4 + (cdef->enumList.at(i).values.count() * 2); + fprintf(out, " %4d, %4d, // constructors\n", isConstructible ? cdef->constructorList.count() : 0, + isConstructible ? index : 0); + +// +// Build classinfo array +// + generateClassInfos(); + +// +// Build signals array first, otherwise the signal indices would be wrong +// + generateFunctions(cdef->signalList, "signal", MethodSignal); + +// +// Build slots array +// + generateFunctions(cdef->slotList, "slot", MethodSlot); + +// +// Build method array +// + generateFunctions(cdef->methodList, "method", MethodMethod); + + +// +// Build property array +// + generateProperties(); + +// +// Build enums array +// + generateEnums(enumsIndex); + +// +// Build constructors array +// + if (isConstructible) + generateFunctions(cdef->constructorList, "constructor", MethodConstructor); + +// +// Terminate data array +// + fprintf(out, "\n 0 // eod\n};\n\n"); + +// +// Build stringdata array +// + fprintf(out, "static const char qt_meta_stringdata_%s[] = {\n", qualifiedClassNameIdentifier.constData()); + fprintf(out, " \""); + int col = 0; + int len = 0; + for (i = 0; i < strings.size(); ++i) { + QByteArray s = strings.at(i); + len = s.length(); + if (col && col + len >= 72) { + fprintf(out, "\"\n \""); + col = 0; + } else if (len && s.at(0) >= '0' && s.at(0) <= '9') { + fprintf(out, "\"\""); + len += 2; + } + int idx = 0; + while (idx < s.length()) { + if (idx > 0) { + col = 0; + fprintf(out, "\"\n \""); + } + int spanLen = qMin(70, s.length() - idx); + // don't cut escape sequences at the end of a line + int backSlashPos = s.lastIndexOf('\\', idx + spanLen - 1); + if (backSlashPos >= idx) { + int escapeLen = lengthOfEscapeSequence(s, backSlashPos); + spanLen = qBound(spanLen, backSlashPos + escapeLen - idx, s.length() - idx); + } + fwrite(s.constData() + idx, 1, spanLen, out); + idx += spanLen; + col += spanLen; + } + + fputs("\\0", out); + col += len + 2; + } + fprintf(out, "\"\n};\n\n"); + + +// +// Generate internal qt_static_metacall() function +// + if (isConstructible) + generateStaticMetacall(qualifiedClassNameIdentifier); + +// +// Build extra array +// + QList<QByteArray> extraList; + for (int i = 0; i < cdef->propertyList.count(); ++i) { + const PropertyDef &p = cdef->propertyList.at(i); + if (!isVariantType(p.type) && !metaTypes.contains(p.type)) { + int s = p.type.lastIndexOf("::"); + if (s > 0) { + QByteArray scope = p.type.left(s); + if (scope != "Qt" && scope != cdef->classname && !extraList.contains(scope)) + extraList += scope; + } + } + } + if (!extraList.isEmpty()) { + fprintf(out, "static const QMetaObject *qt_meta_extradata_%s[] = {\n ", qualifiedClassNameIdentifier.constData()); + for (int i = 0; i < extraList.count(); ++i) { + if (i) + fprintf(out, ",\n "); + fprintf(out, " &%s::staticMetaObject", extraList.at(i).constData()); + } + fprintf(out, ",0\n};\n\n"); + } + + if (isConstructible || !extraList.isEmpty()) { + fprintf(out, "static const QMetaObjectExtraData qt_meta_extradata2_%s = {\n ", + qualifiedClassNameIdentifier.constData()); + if (extraList.isEmpty()) + fprintf(out, "0, "); + else + fprintf(out, "qt_meta_extradata_%s, ", qualifiedClassNameIdentifier.constData()); + if (!isConstructible) + fprintf(out, "0"); + else + fprintf(out, "%s_qt_static_metacall", qualifiedClassNameIdentifier.constData()); + fprintf(out, " \n};\n\n"); + } + +// +// Finally create and initialize the static meta object +// + + if (isQt) + fprintf(out, "const QMetaObject QObject::staticQtMetaObject = {\n"); + else + fprintf(out, "const QMetaObject %s::staticMetaObject = {\n", cdef->qualified.constData()); + + if (isQObject) + fprintf(out, " { 0, "); + else if (cdef->superclassList.size()) + fprintf(out, " { &%s::staticMetaObject, ", purestSuperClass.constData()); + else + fprintf(out, " { 0, "); + fprintf(out, "qt_meta_stringdata_%s,\n qt_meta_data_%s, ", + qualifiedClassNameIdentifier.constData(), qualifiedClassNameIdentifier.constData()); + if (!isConstructible && extraList.isEmpty()) + fprintf(out, "0 }\n"); + else + fprintf(out, "&qt_meta_extradata2_%s }\n", qualifiedClassNameIdentifier.constData()); + fprintf(out, "};\n"); + + if (isQt || !cdef->hasQObject) + return; + + fprintf(out, "\nconst QMetaObject *%s::metaObject() const\n{\n return &staticMetaObject;\n}\n", + cdef->qualified.constData()); +// +// Generate smart cast function +// + fprintf(out, "\nvoid *%s::qt_metacast(const char *_clname)\n{\n", cdef->qualified.constData()); + fprintf(out, " if (!_clname) return 0;\n"); + fprintf(out, " if (!strcmp(_clname, qt_meta_stringdata_%s))\n" + " return static_cast<void*>(const_cast< %s*>(this));\n", + qualifiedClassNameIdentifier.constData(), cdef->classname.constData()); + for (int i = 1; i < cdef->superclassList.size(); ++i) { // for all superclasses but the first one + if (cdef->superclassList.at(i).second == FunctionDef::Private) + continue; + const char *cname = cdef->superclassList.at(i).first; + fprintf(out, " if (!strcmp(_clname, \"%s\"))\n return static_cast< %s*>(const_cast< %s*>(this));\n", + cname, cname, cdef->classname.constData()); + } + for (int i = 0; i < cdef->interfaceList.size(); ++i) { + const QList<ClassDef::Interface> &iface = cdef->interfaceList.at(i); + for (int j = 0; j < iface.size(); ++j) { + fprintf(out, " if (!strcmp(_clname, %s))\n return ", iface.at(j).interfaceId.constData()); + for (int k = j; k >= 0; --k) + fprintf(out, "static_cast< %s*>(", iface.at(k).className.constData()); + fprintf(out, "const_cast< %s*>(this)%s;\n", + cdef->classname.constData(), QByteArray(j+1, ')').constData()); + } + } + if (!purestSuperClass.isEmpty() && !isQObject) { + QByteArray superClass = purestSuperClass; + // workaround for VC6 + if (superClass.contains("::")) { + fprintf(out, " typedef %s QMocSuperClass;\n", superClass.constData()); + superClass = "QMocSuperClass"; + } + fprintf(out, " return %s::qt_metacast(_clname);\n", superClass.constData()); + } else { + fprintf(out, " return 0;\n"); + } + fprintf(out, "}\n"); + +// +// Generate internal qt_metacall() function +// + generateMetacall(); + +// +// Generate internal signal functions +// + for (int signalindex = 0; signalindex < cdef->signalList.size(); ++signalindex) + generateSignal(&cdef->signalList[signalindex], signalindex); +} + + +void Generator::generateClassInfos() +{ + if (cdef->classInfoList.isEmpty()) + return; + + fprintf(out, "\n // classinfo: key, value\n"); + + for (int i = 0; i < cdef->classInfoList.size(); ++i) { + const ClassInfoDef &c = cdef->classInfoList.at(i); + fprintf(out, " %4d, %4d,\n", strreg(c.name), strreg(c.value)); + } +} + +void Generator::generateFunctions(QList<FunctionDef>& list, const char *functype, int type) +{ + if (list.isEmpty()) + return; + fprintf(out, "\n // %ss: signature, parameters, type, tag, flags\n", functype); + + for (int i = 0; i < list.count(); ++i) { + const FunctionDef &f = list.at(i); + + QByteArray sig = f.name + '('; + QByteArray arguments; + + for (int j = 0; j < f.arguments.count(); ++j) { + const ArgumentDef &a = f.arguments.at(j); + if (j) { + sig += ","; + arguments += ","; + } + sig += a.normalizedType; + arguments += a.name; + } + sig += ')'; + + char flags = type; + if (f.access == FunctionDef::Private) + flags |= AccessPrivate; + else if (f.access == FunctionDef::Public) + flags |= AccessPublic; + else if (f.access == FunctionDef::Protected) + flags |= AccessProtected; + if (f.access == FunctionDef::Private) + flags |= AccessPrivate; + else if (f.access == FunctionDef::Public) + flags |= AccessPublic; + else if (f.access == FunctionDef::Protected) + flags |= AccessProtected; + if (f.isCompat) + flags |= MethodCompatibility; + if (f.wasCloned) + flags |= MethodCloned; + if (f.isScriptable) + flags |= MethodScriptable; + fprintf(out, " %4d, %4d, %4d, %4d, 0x%02x,\n", strreg(sig), + strreg(arguments), strreg(f.normalizedType), strreg(f.tag), flags); + } +} + +void Generator::generateProperties() +{ + // + // specify get function, for compatibiliy we accept functions + // returning pointers, or const char * for QByteArray. + // + for (int i = 0; i < cdef->propertyList.count(); ++i) { + PropertyDef &p = cdef->propertyList[i]; + if (p.read.isEmpty()) + continue; + for (int j = 0; j < cdef->publicList.count(); ++j) { + const FunctionDef &f = cdef->publicList.at(j); + if (f.name != p.read) + continue; + if (!f.isConst) // get functions must be const + continue; + if (f.arguments.size()) // and must not take any arguments + continue; + PropertyDef::Specification spec = PropertyDef::ValueSpec; + QByteArray tmp = f.normalizedType; + if (p.type == "QByteArray" && tmp == "const char *") + tmp = "QByteArray"; + if (tmp.left(6) == "const ") + tmp = tmp.mid(6); + if (p.type != tmp && tmp.endsWith('*')) { + tmp.chop(1); + spec = PropertyDef::PointerSpec; + } else if (f.type.name.endsWith('&')) { // raw type, not normalized type + spec = PropertyDef::ReferenceSpec; + } + if (p.type != tmp) + continue; + p.gspec = spec; + break; + } + if(!p.notify.isEmpty()) { + int notifyId = -1; + for (int j = 0; j < cdef->signalList.count(); ++j) { + const FunctionDef &f = cdef->signalList.at(j); + if(f.name != p.notify) { + continue; + } else { + notifyId = j /* Signal indexes start from 0 */; + break; + } + } + p.notifyId = notifyId; + } + } + + // + // Create meta data + // + + if (cdef->propertyList.count()) + fprintf(out, "\n // properties: name, type, flags\n"); + for (int i = 0; i < cdef->propertyList.count(); ++i) { + const PropertyDef &p = cdef->propertyList.at(i); + uint flags = Invalid; + if (!isVariantType(p.type)) { + flags |= EnumOrFlag; + } else { + flags |= qvariant_nameToType(p.type) << 24; + } + if (!p.read.isEmpty()) + flags |= Readable; + if (!p.write.isEmpty()) { + flags |= Writable; + if (p.stdCppSet()) + flags |= StdCppSet; + } + if (!p.reset.isEmpty()) + flags |= Resettable; + +// if (p.override) +// flags |= Override; + + if (p.designable.isEmpty()) + flags |= ResolveDesignable; + else if (p.designable != "false") + flags |= Designable; + + if (p.scriptable.isEmpty()) + flags |= ResolveScriptable; + else if (p.scriptable != "false") + flags |= Scriptable; + + if (p.stored.isEmpty()) + flags |= ResolveStored; + else if (p.stored != "false") + flags |= Stored; + + if (p.editable.isEmpty()) + flags |= ResolveEditable; + else if (p.editable != "false") + flags |= Editable; + + if (p.user.isEmpty()) + flags |= ResolveUser; + else if (p.user != "false") + flags |= User; + + if (p.notifyId != -1) + flags |= Notify; + + fprintf(out, " %4d, %4d, 0x%.8x,\n", + strreg(p.name), + strreg(p.type), + flags); + } + + if(cdef->notifyableProperties) { + fprintf(out, "\n // properties: notify_signal_id\n"); + for (int i = 0; i < cdef->propertyList.count(); ++i) { + const PropertyDef &p = cdef->propertyList.at(i); + if(p.notifyId == -1) + fprintf(out, " %4d,\n", + 0); + else + fprintf(out, " %4d,\n", + p.notifyId); + } + } +} + +void Generator::generateEnums(int index) +{ + if (cdef->enumDeclarations.isEmpty()) + return; + + fprintf(out, "\n // enums: name, flags, count, data\n"); + index += 4 * cdef->enumList.count(); + int i; + for (i = 0; i < cdef->enumList.count(); ++i) { + const EnumDef &e = cdef->enumList.at(i); + fprintf(out, " %4d, 0x%.1x, %4d, %4d,\n", + strreg(e.name), + cdef->enumDeclarations.value(e.name) ? 1 : 0, + e.values.count(), + index); + index += e.values.count() * 2; + } + + fprintf(out, "\n // enum data: key, value\n"); + for (i = 0; i < cdef->enumList.count(); ++i) { + const EnumDef &e = cdef->enumList.at(i); + for (int j = 0; j < e.values.count(); ++j) { + const QByteArray &val = e.values.at(j); + fprintf(out, " %4d, uint(%s::%s),\n", + strreg(val), + cdef->qualified.constData(), + val.constData()); + } + } +} + +void Generator::generateMetacall() +{ + bool isQObject = (cdef->classname == "QObject"); + + fprintf(out, "\nint %s::qt_metacall(QMetaObject::Call _c, int _id, void **_a)\n{\n", + cdef->qualified.constData()); + + if (!purestSuperClass.isEmpty() && !isQObject) { + QByteArray superClass = purestSuperClass; + // workaround for VC6 + if (superClass.contains("::")) { + fprintf(out, " typedef %s QMocSuperClass;\n", superClass.constData()); + superClass = "QMocSuperClass"; + } + fprintf(out, " _id = %s::qt_metacall(_c, _id, _a);\n", superClass.constData()); + } + + fprintf(out, " if (_id < 0)\n return _id;\n"); + fprintf(out, " "); + + bool needElse = false; + QList<FunctionDef> methodList; + methodList += cdef->signalList; + methodList += cdef->slotList; + methodList += cdef->methodList; + + if (methodList.size()) { + needElse = true; + fprintf(out, "if (_c == QMetaObject::InvokeMetaMethod) {\n "); + fprintf(out, "switch (_id) {\n"); + for (int methodindex = 0; methodindex < methodList.size(); ++methodindex) { + const FunctionDef &f = methodList.at(methodindex); + fprintf(out, " case %d: ", methodindex); + if (f.normalizedType.size()) + fprintf(out, "{ %s _r = ", noRef(f.normalizedType).constData()); + if (f.inPrivateClass.size()) + fprintf(out, "%s->", f.inPrivateClass.constData()); + fprintf(out, "%s(", f.name.constData()); + int offset = 1; + for (int j = 0; j < f.arguments.count(); ++j) { + const ArgumentDef &a = f.arguments.at(j); + if (j) + fprintf(out, ","); + fprintf(out, "(*reinterpret_cast< %s>(_a[%d]))",a.typeNameForCast.constData(), offset++); + } + fprintf(out, ");"); + if (f.normalizedType.size()) + fprintf(out, "\n if (_a[0]) *reinterpret_cast< %s*>(_a[0]) = _r; } ", + noRef(f.normalizedType).constData()); + fprintf(out, " break;\n"); + } + fprintf(out, " default: ;\n"); + fprintf(out, " }\n"); + } + if (methodList.size()) + fprintf(out, " _id -= %d;\n }", methodList.size()); + + if (cdef->propertyList.size()) { + bool needGet = false; + bool needTempVarForGet = false; + bool needSet = false; + bool needReset = false; + bool needDesignable = false; + bool needScriptable = false; + bool needStored = false; + bool needEditable = false; + bool needUser = false; + for (int i = 0; i < cdef->propertyList.size(); ++i) { + const PropertyDef &p = cdef->propertyList.at(i); + needGet |= !p.read.isEmpty(); + if (!p.read.isEmpty()) + needTempVarForGet |= (p.gspec != PropertyDef::PointerSpec + && p.gspec != PropertyDef::ReferenceSpec); + + needSet |= !p.write.isEmpty(); + needReset |= !p.reset.isEmpty(); + needDesignable |= p.designable.endsWith(')'); + needScriptable |= p.scriptable.endsWith(')'); + needStored |= p.stored.endsWith(')'); + needEditable |= p.editable.endsWith(')'); + needUser |= p.user.endsWith(')'); + } + bool needAnything = needGet + | needSet + | needReset + | needDesignable + | needScriptable + | needStored + | needEditable + | needUser; + if (!needAnything) + goto skip_properties; + fprintf(out, "\n#ifndef QT_NO_PROPERTIES\n "); + + if (needElse) + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::ReadProperty) {\n"); + if (needGet) { + if (needTempVarForGet) + fprintf(out, " void *_v = _a[0];\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (p.read.isEmpty()) + continue; + if (p.gspec == PropertyDef::PointerSpec) + fprintf(out, " case %d: _a[0] = const_cast<void*>(reinterpret_cast<const void*>(%s())); break;\n", + propindex, p.read.constData()); + else if (p.gspec == PropertyDef::ReferenceSpec) + fprintf(out, " case %d: _a[0] = const_cast<void*>(reinterpret_cast<const void*>(&%s())); break;\n", + propindex, p.read.constData()); + else if (cdef->enumDeclarations.value(p.type, false)) + fprintf(out, " case %d: *reinterpret_cast<int*>(_v) = QFlag(%s()); break;\n", + propindex, p.read.constData()); + else + fprintf(out, " case %d: *reinterpret_cast< %s*>(_v) = %s(); break;\n", + propindex, p.type.constData(), p.read.constData()); + } + fprintf(out, " }\n"); + } + + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::WriteProperty) {\n"); + + if (needSet) { + fprintf(out, " void *_v = _a[0];\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (p.write.isEmpty()) + continue; + if (cdef->enumDeclarations.value(p.type, false)) { + fprintf(out, " case %d: %s(QFlag(*reinterpret_cast<int*>(_v))); break;\n", + propindex, p.write.constData()); + } else { + fprintf(out, " case %d: %s(*reinterpret_cast< %s*>(_v)); break;\n", + propindex, p.write.constData(), p.type.constData()); + } + } + fprintf(out, " }\n"); + } + + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::ResetProperty) {\n"); + if (needReset) { + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (!p.reset.endsWith(')')) + continue; + fprintf(out, " case %d: %s; break;\n", + propindex, p.reset.constData()); + } + fprintf(out, " }\n"); + } + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::QueryPropertyDesignable) {\n"); + if (needDesignable) { + fprintf(out, " bool *_b = reinterpret_cast<bool*>(_a[0]);\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (!p.designable.endsWith(')')) + continue; + fprintf(out, " case %d: *_b = %s; break;\n", + propindex, p.designable.constData()); + } + fprintf(out, " }\n"); + } + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::QueryPropertyScriptable) {\n"); + if (needScriptable) { + fprintf(out, " bool *_b = reinterpret_cast<bool*>(_a[0]);\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (!p.scriptable.endsWith(')')) + continue; + fprintf(out, " case %d: *_b = %s; break;\n", + propindex, p.scriptable.constData()); + } + fprintf(out, " }\n"); + } + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::QueryPropertyStored) {\n"); + if (needStored) { + fprintf(out, " bool *_b = reinterpret_cast<bool*>(_a[0]);\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (!p.stored.endsWith(')')) + continue; + fprintf(out, " case %d: *_b = %s; break;\n", + propindex, p.stored.constData()); + } + fprintf(out, " }\n"); + } + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::QueryPropertyEditable) {\n"); + if (needEditable) { + fprintf(out, " bool *_b = reinterpret_cast<bool*>(_a[0]);\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (!p.editable.endsWith(')')) + continue; + fprintf(out, " case %d: *_b = %s; break;\n", + propindex, p.editable.constData()); + } + fprintf(out, " }\n"); + } + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + + fprintf(out, " else "); + fprintf(out, "if (_c == QMetaObject::QueryPropertyUser) {\n"); + if (needUser) { + fprintf(out, " bool *_b = reinterpret_cast<bool*>(_a[0]);\n"); + fprintf(out, " switch (_id) {\n"); + for (int propindex = 0; propindex < cdef->propertyList.size(); ++propindex) { + const PropertyDef &p = cdef->propertyList.at(propindex); + if (!p.user.endsWith(')')) + continue; + fprintf(out, " case %d: *_b = %s; break;\n", + propindex, p.user.constData()); + } + fprintf(out, " }\n"); + } + fprintf(out, + " _id -= %d;\n" + " }", cdef->propertyList.count()); + + + fprintf(out, "\n#endif // QT_NO_PROPERTIES"); + } + skip_properties: + if (methodList.size() || cdef->signalList.size() || cdef->propertyList.size()) + fprintf(out, "\n "); + fprintf(out,"return _id;\n}\n"); +} + +void Generator::generateStaticMetacall(const QByteArray &prefix) +{ + bool isQObject = (cdef->classname == "QObject"); + + fprintf(out, "static int %s_qt_static_metacall(QMetaObject::Call _c, int _id, void **_a)\n{\n", + prefix.constData()); + + fprintf(out, " if (_c == QMetaObject::CreateInstance) {\n"); + fprintf(out, " switch (_id) {\n"); + for (int ctorindex = 0; ctorindex < cdef->constructorList.count(); ++ctorindex) { + fprintf(out, " case %d: { %s *_r = new %s(", ctorindex, + cdef->classname.constData(), cdef->classname.constData()); + const FunctionDef &f = cdef->constructorList.at(ctorindex); + int offset = 1; + for (int j = 0; j < f.arguments.count(); ++j) { + const ArgumentDef &a = f.arguments.at(j); + if (j) + fprintf(out, ","); + fprintf(out, "(*reinterpret_cast< %s>(_a[%d]))", a.typeNameForCast.constData(), offset++); + } + fprintf(out, ");\n"); + fprintf(out, " if (_a[0]) *reinterpret_cast<QObject**>(_a[0]) = _r; } break;\n"); + } + fprintf(out, " }\n"); + fprintf(out, " _id -= %d;\n", cdef->constructorList.count()); + fprintf(out, " return _id;\n"); + fprintf(out, " }\n"); + + if (!isQObject) + fprintf(out, " _id = %s::staticMetaObject.superClass()->static_metacall(_c, _id, _a);\n", cdef->classname.constData()); + + fprintf(out, " if (_id < 0)\n return _id;\n"); + + fprintf(out, " return _id;\n"); + fprintf(out, "}\n\n"); +} + +void Generator::generateSignal(FunctionDef *def,int index) +{ + if (def->wasCloned || def->isAbstract) + return; + fprintf(out, "\n// SIGNAL %d\n%s %s::%s(", + index, def->type.name.constData(), cdef->qualified.constData(), def->name.constData()); + + QByteArray thisPtr = "this"; + const char *constQualifier = ""; + + if (def->isConst) { + thisPtr = "const_cast< "; + thisPtr += cdef->qualified; + thisPtr += " *>(this)"; + constQualifier = "const"; + } + + if (def->arguments.isEmpty() && def->normalizedType.isEmpty()) { + fprintf(out, ")%s\n{\n" + " QMetaObject::activate(%s, &staticMetaObject, %d, 0);\n" + "}\n", constQualifier, thisPtr.constData(), index); + return; + } + + int offset = 1; + for (int j = 0; j < def->arguments.count(); ++j) { + const ArgumentDef &a = def->arguments.at(j); + if (j) + fprintf(out, ", "); + fprintf(out, "%s _t%d%s", a.type.name.constData(), offset++, a.rightType.constData()); + } + fprintf(out, ")%s\n{\n", constQualifier); + if (def->type.name.size() && def->normalizedType.size()) + fprintf(out, " %s _t0;\n", noRef(def->normalizedType).constData()); + + fprintf(out, " void *_a[] = { "); + if (def->normalizedType.isEmpty()) { + fprintf(out, "0"); + } else { + if (def->returnTypeIsVolatile) + fprintf(out, "const_cast<void*>(reinterpret_cast<const volatile void*>(&_t0))"); + else + fprintf(out, "const_cast<void*>(reinterpret_cast<const void*>(&_t0))"); + } + int i; + for (i = 1; i < offset; ++i) + if (def->arguments.at(i - 1).type.isVolatile) + fprintf(out, ", const_cast<void*>(reinterpret_cast<const volatile void*>(&_t%d))", i); + else + fprintf(out, ", const_cast<void*>(reinterpret_cast<const void*>(&_t%d))", i); + fprintf(out, " };\n"); + int n = 0; + for (i = 0; i < def->arguments.count(); ++i) + if (def->arguments.at(i).isDefault) + ++n; + if (n) + fprintf(out, " QMetaObject::activate(%s, &staticMetaObject, %d, %d, _a);\n", thisPtr.constData(), index, index + n); + else + fprintf(out, " QMetaObject::activate(%s, &staticMetaObject, %d, _a);\n", thisPtr.constData(), index); + if (def->normalizedType.size()) + fprintf(out, " return _t0;\n"); + fprintf(out, "}\n"); +} + +// +// Functions used when generating QMetaObject directly +// +// Much of this code is copied from the corresponding +// C++ code-generating functions; we can change the +// two generators so that more of the code is shared. +// The key difference from the C++ code generator is +// that instead of calling fprintf(), we append bytes +// to a buffer. +// + +QMetaObject *Generator::generateMetaObject(bool ignoreProperties) +{ +// +// build the data array +// + + // filter out undeclared enumerators and sets + { + QList<EnumDef> enumList; + for (int i = 0; i < cdef->enumList.count(); ++i) { + EnumDef def = cdef->enumList.at(i); + if (cdef->enumDeclarations.contains(def.name)) { + enumList += def; + } + QByteArray alias = cdef->flagAliases.value(def.name); + if (cdef->enumDeclarations.contains(alias)) { + def.name = alias; + enumList += def; + } + } + cdef->enumList = enumList; + } + + int index = 10; + meta_data + << 1 // revision + << strreg(cdef->qualified) // classname + << cdef->classInfoList.count() << (cdef->classInfoList.count() ? index : 0) // classinfo + ; + index += cdef->classInfoList.count() * 2; + + int methodCount = cdef->signalList.count() + cdef->slotList.count() + cdef->methodList.count(); + meta_data << methodCount << (methodCount ? index : 0); // methods + index += methodCount * 5; + if (!ignoreProperties) { + meta_data << cdef->propertyList.count() << (cdef->propertyList.count() ? index : 0); // properties + index += cdef->propertyList.count() * 3; + } else { + meta_data << 0 << 0; // properties + } + meta_data << cdef->enumList.count() << (cdef->enumList.count() ? index : 0); // enums/sets + +// +// Build classinfo array +// + _generateClassInfos(); + +// +// Build signals array first, otherwise the signal indices would be wrong +// + _generateFunctions(cdef->signalList, MethodSignal); + +// +// Build slots array +// + _generateFunctions(cdef->slotList, MethodSlot); + +// +// Build method array +// + _generateFunctions(cdef->methodList, MethodMethod); + + +// +// Build property array +// + if (!ignoreProperties) + _generateProperties(); + +// +// Build enums array +// + _generateEnums(index); + +// +// Terminate data array +// + meta_data << 0; + +// +// Build stringdata array +// + QVector<char> string_data; + for (int i = 0; i < strings.size(); ++i) { + const char *s = strings.at(i).constData(); + char c; + do { + c = *(s++); + string_data << c; + } while (c != '\0'); + } + +// +// Finally create and initialize the static meta object +// + const int meta_object_offset = 0; + const int meta_object_size = sizeof(QMetaObject); + const int meta_data_offset = meta_object_offset + meta_object_size; + const int meta_data_size = meta_data.count() * sizeof(uint); + const int string_data_offset = meta_data_offset + meta_data_size; + const int string_data_size = string_data.count(); + const int total_size = string_data_offset + string_data_size; + + char *blob = new char[total_size]; + + char *string_data_output = blob + string_data_offset; + const char *string_data_src = string_data.constData(); + for (int i = 0; i < string_data.count(); ++i) + string_data_output[i] = string_data_src[i]; + + uint *meta_data_output = reinterpret_cast<uint *>(blob + meta_data_offset); + const uint *meta_data_src = meta_data.constData(); + for (int i = 0; i < meta_data.count(); ++i) + meta_data_output[i] = meta_data_src[i]; + + QMetaObject *meta_object = new (blob + meta_object_offset)QMetaObject; + meta_object->d.superdata = 0; + meta_object->d.stringdata = string_data_output; + meta_object->d.data = meta_data_output; + meta_object->d.extradata = 0; + return meta_object; +} + +void Generator::_generateClassInfos() +{ + for (int i = 0; i < cdef->classInfoList.size(); ++i) { + const ClassInfoDef &c = cdef->classInfoList.at(i); + meta_data << strreg(c.name) << strreg(c.value); + } +} + +void Generator::_generateFunctions(QList<FunctionDef> &list, int type) +{ + for (int i = 0; i < list.count(); ++i) { + const FunctionDef &f = list.at(i); + + QByteArray sig = f.name + '('; + QByteArray arguments; + + for (int j = 0; j < f.arguments.count(); ++j) { + const ArgumentDef &a = f.arguments.at(j); + if (j) { + sig += ","; + arguments += ","; + } + sig += a.normalizedType; + arguments += a.name; + } + sig += ')'; + + char flags = type; + if (f.access == FunctionDef::Private) + flags |= AccessPrivate; + else if (f.access == FunctionDef::Public) + flags |= AccessPublic; + else if (f.access == FunctionDef::Protected) + flags |= AccessProtected; + if (f.access == FunctionDef::Private) + flags |= AccessPrivate; + else if (f.access == FunctionDef::Public) + flags |= AccessPublic; + else if (f.access == FunctionDef::Protected) + flags |= AccessProtected; + if (f.isCompat) + flags |= MethodCompatibility; + if (f.wasCloned) + flags |= MethodCloned; + if (f.isScriptable) + flags |= MethodScriptable; + + meta_data << strreg(sig) + << strreg(arguments) + << strreg(f.normalizedType) + << strreg(f.tag) + << flags; + } +} + +void Generator::_generateEnums(int index) +{ + index += 4 * cdef->enumList.count(); + int i; + for (i = 0; i < cdef->enumList.count(); ++i) { + const EnumDef &e = cdef->enumList.at(i); + meta_data << strreg(e.name) << (cdef->enumDeclarations.value(e.name) ? 1 : 0) + << e.values.count() << index; + index += e.values.count() * 2; + } + + for (i = 0; i < cdef->enumList.count(); ++i) { + const EnumDef &e = cdef->enumList.at(i); + for (int j = 0; j < e.values.count(); ++j) { + const QByteArray &val = e.values.at(j); + meta_data << strreg(val) << 0; // we don't know the value itself + } + } +} + +void Generator::_generateProperties() +{ + // + // specify get function, for compatibiliy we accept functions + // returning pointers, or const char * for QByteArray. + // + for (int i = 0; i < cdef->propertyList.count(); ++i) { + PropertyDef &p = cdef->propertyList[i]; + if (p.read.isEmpty()) + continue; + for (int j = 0; j < cdef->publicList.count(); ++j) { + const FunctionDef &f = cdef->publicList.at(j); + if (f.name != p.read) + continue; + if (!f.isConst) // get functions must be const + continue; + if (f.arguments.size()) // and must not take any arguments + continue; + PropertyDef::Specification spec = PropertyDef::ValueSpec; + QByteArray tmp = f.normalizedType; + if (p.type == "QByteArray" && tmp == "const char *") + tmp = "QByteArray"; + if (tmp.left(6) == "const ") + tmp = tmp.mid(6); + if (p.type != tmp && tmp.endsWith('*')) { + tmp.chop(1); + spec = PropertyDef::PointerSpec; + } else if (f.type.name.endsWith('&')) { // raw type, not normalized type + spec = PropertyDef::ReferenceSpec; + } + if (p.type != tmp) + continue; + p.gspec = spec; + break; + } + } + + + // + // Create meta data + // + + for (int i = 0; i < cdef->propertyList.count(); ++i) { + const PropertyDef &p = cdef->propertyList.at(i); + uint flags = Invalid; + if (!isVariantType(p.type)) { + flags |= EnumOrFlag; + } else { + flags |= qvariant_nameToType(p.type) << 24; + } + if (!p.read.isEmpty()) + flags |= Readable; + if (!p.write.isEmpty()) { + flags |= Writable; + if (p.stdCppSet()) + flags |= StdCppSet; + } + if (!p.reset.isEmpty()) + flags |= Resettable; + +// if (p.override) +// flags |= Override; + + if (p.designable.isEmpty()) + flags |= ResolveDesignable; + else if (p.designable != "false") + flags |= Designable; + + if (p.scriptable.isEmpty()) + flags |= ResolveScriptable; + else if (p.scriptable != "false") + flags |= Scriptable; + + if (p.stored.isEmpty()) + flags |= ResolveStored; + else if (p.stored != "false") + flags |= Stored; + + if (p.editable.isEmpty()) + flags |= ResolveEditable; + else if (p.editable != "false") + flags |= Editable; + + if (p.user.isEmpty()) + flags |= ResolveUser; + else if (p.user != "false") + flags |= User; + + meta_data << strreg(p.name) << strreg(p.type) << flags; + } +} + +QT_END_NAMESPACE |