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::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::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::_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
}
}
}
static char *is_section(const void *ctx, const char *line, char **value)
{
char *secname;
/* Any number of upper case words separated by spaces, ending in : */
if (!strreg(ctx, line,
"^([A-Z][a-zA-Z0-9_]*( [A-Z][a-zA-Z0-9_]*)*):[ \t\n]*(.*)",
&secname, NULL, value))
return NULL;
return secname;
}
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::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);
}
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;
}
