QQmlSourceLocation QQmlBoundSignalExpression::sourceLocation() const
{
QV4::Function *f = function();
if (f) {
QQmlSourceLocation loc;
loc.sourceFile = f->sourceFile();
loc.line = f->compiledFunction->location.line;
loc.column = f->compiledFunction->location.column;
return loc;
}
return QQmlSourceLocation();
}
QQmlSourceLocation QQmlBoundSignalExpression::sourceLocation() const
{
if (expressionFunctionValid()) {
QV4::Function *f = function();
Q_ASSERT(f);
QQmlSourceLocation loc;
loc.sourceFile = f->sourceFile();
loc.line = f->compiledFunction->location.line;
loc.column = f->compiledFunction->location.column;
return loc;
}
Q_ASSERT(!m_extra.isNull());
return m_extra->m_sourceLocation;
}
QString QQmlBinding::expressionIdentifier(QQmlJavaScriptExpression *e)
{
QQmlBinding *This = static_cast<QQmlBinding *>(e);
QQmlEnginePrivate *ep = QQmlEnginePrivate::get(This->context()->engine);
QV4::Scope scope(ep->v4engine());
QV4::ScopedValue f(scope, This->v4function.value());
QV4::Function *function = f->asFunctionObject()->function();
QString url = function->sourceFile();
quint16 lineNumber = function->compiledFunction->location.line;
quint16 columnNumber = function->compiledFunction->location.column;
return url + QLatin1Char(':') + QString::number(lineNumber) + QLatin1Char(':') + QString::number(columnNumber);
}
void QQmlBinding::update(QQmlPropertyPrivate::WriteFlags flags)
{
if (!enabledFlag() || !context() || !context()->isValid())
return;
// Check that the target has not been deleted
if (QQmlData::wasDeleted(object()))
return;
QString url;
quint16 lineNumber;
quint16 columnNumber;
QQmlEnginePrivate *ep = QQmlEnginePrivate::get(context()->engine);
QV4::Scope scope(ep->v4engine());
QV4::ScopedFunctionObject f(scope, v4function.value());
Q_ASSERT(f);
if (f->bindingKeyFlag()) {
Q_ASSERT(f->as<QV4::QQmlBindingFunction>());
QQmlSourceLocation loc = static_cast<QV4::QQmlBindingFunction *>(f.getPointer())->d()->bindingLocation;
url = loc.sourceFile;
lineNumber = loc.line;
columnNumber = loc.column;
} else {
QV4::Function *function = f->asFunctionObject()->function();
Q_ASSERT(function);
url = function->sourceFile();
lineNumber = function->compiledFunction->location.line;
columnNumber = function->compiledFunction->location.column;
}
int lineNo = qmlSourceCoordinate(lineNumber);
int columnNo = qmlSourceCoordinate(columnNumber);
QQmlTrace trace("General Binding Update");
trace.addDetail("URL", url);
trace.addDetail("Line", lineNo);
trace.addDetail("Column", columnNo);
if (!updatingFlag()) {
QQmlBindingProfiler prof(ep->profiler, url, lineNo, columnNo);
setUpdatingFlag(true);
QQmlAbstractExpression::DeleteWatcher watcher(this);
if (m_core.propType == qMetaTypeId<QQmlBinding *>()) {
int idx = m_core.coreIndex;
Q_ASSERT(idx != -1);
QQmlBinding *t = this;
int status = -1;
void *a[] = { &t, 0, &status, &flags };
QMetaObject::metacall(*m_coreObject, QMetaObject::WriteProperty, idx, a);
} else {
ep->referenceScarceResources();
bool isUndefined = false;
QV4::ScopedValue result(scope, QQmlJavaScriptExpression::evaluate(context(), f, &isUndefined));
trace.event("writing binding result");
bool needsErrorLocationData = false;
if (!watcher.wasDeleted() && !hasError())
needsErrorLocationData = !QQmlPropertyPrivate::writeBinding(*m_coreObject, m_core, context(),
this, result, isUndefined, flags);
if (!watcher.wasDeleted()) {
if (needsErrorLocationData)
delayedError()->setErrorLocation(QUrl(url), lineNumber, columnNumber);
if (hasError()) {
if (!delayedError()->addError(ep)) ep->warning(this->error(context()->engine));
} else {
clearError();
}
}
ep->dereferenceScarceResources();
}
if (!watcher.wasDeleted())
setUpdatingFlag(false);
} else {
QQmlProperty p = property();
QQmlAbstractBinding::printBindingLoopError(p);
}
}