From 63e6b999144dfbd4ab230973d7e682361e8fe182 Mon Sep 17 00:00:00 2001 From: Aaron Kennedy Date: Fri, 8 Oct 2010 15:06:17 +1000 Subject: Allow aliases to value type properties Task-number: QTBUG-14254 --- src/declarative/qml/qdeclarativecompiler.cpp | 27 +++++++++++-- src/declarative/qml/qdeclarativevmemetaobject.cpp | 25 +++++++++--- src/declarative/qml/qdeclarativevmemetaobject_p.h | 19 ++++++++++ .../qdeclarativelanguage/data/alias.10.qml | 8 ++++ .../qdeclarativelanguage/data/alias.11.qml | 8 ++++ .../data/invalidAlias.10.errors.txt | 1 + .../qdeclarativelanguage/data/invalidAlias.10.qml | 6 +++ .../data/invalidAlias.3.errors.txt | 2 +- .../qdeclarativelanguage/data/invalidAlias.3.qml | 2 +- .../data/invalidAlias.4.errors.txt | 2 +- .../data/invalidAlias.8.errors.txt | 1 + .../qdeclarativelanguage/data/invalidAlias.8.qml | 7 ++++ .../data/invalidAlias.9.errors.txt | 1 + .../qdeclarativelanguage/data/invalidAlias.9.qml | 6 +++ .../tst_qdeclarativelanguage.cpp | 44 ++++++++++++++++++++++ 15 files changed, 147 insertions(+), 12 deletions(-) create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/alias.10.qml create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/alias.11.qml create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.errors.txt create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.qml create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.errors.txt create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.qml create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.errors.txt create mode 100644 tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.qml diff --git a/src/declarative/qml/qdeclarativecompiler.cpp b/src/declarative/qml/qdeclarativecompiler.cpp index 7a29f24..74bc5bd 100644 --- a/src/declarative/qml/qdeclarativecompiler.cpp +++ b/src/declarative/qml/qdeclarativecompiler.cpp @@ -2565,8 +2565,8 @@ bool QDeclarativeCompiler::compileAlias(QMetaObjectBuilder &builder, QStringList alias = astNodeToStringList(node); - if (alias.count() != 1 && alias.count() != 2) - COMPILE_EXCEPTION(prop.defaultValue, tr("Invalid alias reference. An alias reference must be specified as or .")); + if (alias.count() < 1 || alias.count() > 3) + COMPILE_EXCEPTION(prop.defaultValue, tr("Invalid alias reference. An alias reference must be specified as , . or ..")); if (!compileState.ids.contains(alias.at(0))) COMPILE_EXCEPTION(prop.defaultValue, tr("Invalid alias reference. Unable to find id \"%1\"").arg(alias.at(0))); @@ -2578,11 +2578,14 @@ bool QDeclarativeCompiler::compileAlias(QMetaObjectBuilder &builder, int propIdx = -1; int flags = 0; bool writable = false; - if (alias.count() == 2) { + if (alias.count() == 2 || alias.count() == 3) { propIdx = idObject->metaObject()->indexOfProperty(alias.at(1).toUtf8().constData()); - if (-1 == propIdx) + if (-1 == propIdx) { COMPILE_EXCEPTION(prop.defaultValue, tr("Invalid alias location")); + } else if (propIdx > 0xFFFF) { + COMPILE_EXCEPTION(prop.defaultValue, tr("Alias property exceeds alias bounds")); + } QMetaProperty aliasProperty = idObject->metaObject()->property(propIdx); if (!aliasProperty.isScriptable()) @@ -2590,6 +2593,22 @@ bool QDeclarativeCompiler::compileAlias(QMetaObjectBuilder &builder, writable = aliasProperty.isWritable(); + if (alias.count() == 3) { + QDeclarativeValueType *valueType = enginePrivate->valueTypes[aliasProperty.type()]; + if (!valueType) + COMPILE_EXCEPTION(prop.defaultValue, tr("Invalid alias location")); + + propIdx |= ((unsigned int)aliasProperty.type()) << 24; + + int valueTypeIndex = valueType->metaObject()->indexOfProperty(alias.at(2).toUtf8().constData()); + if (valueTypeIndex == -1) + COMPILE_EXCEPTION(prop.defaultValue, tr("Invalid alias location")); + Q_ASSERT(valueTypeIndex <= 0xFF); + + aliasProperty = valueType->metaObject()->property(valueTypeIndex); + propIdx |= (valueTypeIndex << 16); + } + if (aliasProperty.isEnumType()) typeName = "int"; // Avoid introducing a dependency on the aliased metaobject else diff --git a/src/declarative/qml/qdeclarativevmemetaobject.cpp b/src/declarative/qml/qdeclarativevmemetaobject.cpp index 37f08fc..e28062b 100644 --- a/src/declarative/qml/qdeclarativevmemetaobject.cpp +++ b/src/declarative/qml/qdeclarativevmemetaobject.cpp @@ -459,7 +459,7 @@ int QDeclarativeVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a) id -= propOffset; if (id < metaData->propertyCount) { - int t = (metaData->propertyData() + id)->propertyType; + int t = (metaData->propertyData() + id)->propertyType; bool needActivate = false; if (t == -1) { @@ -586,11 +586,26 @@ int QDeclarativeVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a) connectAlias(id); - if (d->propertyIdx == -1) { + if (d->isObjectAlias()) { *reinterpret_cast(a[0]) = target; return -1; + } else if (d->isValueTypeAlias()) { + // Value type property + QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(ctxt->engine); + + QDeclarativeValueType *valueType = ep->valueTypes[d->valueType()]; + Q_ASSERT(valueType); + + valueType->read(target, d->propertyIndex()); + int rv = QMetaObject::metacall(valueType, c, d->valueTypeIndex(), a); + + if (c == QMetaObject::WriteProperty) + valueType->write(target, d->propertyIndex(), 0x00); + + return rv; + } else { - return QMetaObject::metacall(target, c, d->propertyIdx, a); + return QMetaObject::metacall(target, c, d->propertyIndex(), a); } } @@ -823,8 +838,8 @@ void QDeclarativeVMEMetaObject::connectAlias(int aliasId) int sigIdx = methodOffset + aliasId + metaData->propertyCount; QMetaObject::connect(context, d->contextIdx + ctxtPriv->notifyIndex, object, sigIdx); - if (d->propertyIdx != -1) { - QMetaProperty prop = target->metaObject()->property(d->propertyIdx); + if (!d->isObjectAlias()) { + QMetaProperty prop = target->metaObject()->property(d->propertyIndex()); if (prop.hasNotifySignal()) QDeclarativePropertyPrivate::connect(target, prop.notifySignalIndex(), object, sigIdx); } diff --git a/src/declarative/qml/qdeclarativevmemetaobject_p.h b/src/declarative/qml/qdeclarativevmemetaobject_p.h index 4ccaa73..5134763 100644 --- a/src/declarative/qml/qdeclarativevmemetaobject_p.h +++ b/src/declarative/qml/qdeclarativevmemetaobject_p.h @@ -84,6 +84,25 @@ struct QDeclarativeVMEMetaData int contextIdx; int propertyIdx; int flags; + + bool isObjectAlias() const { + return propertyIdx == -1; + } + bool isPropertyAlias() const { + return !isObjectAlias() && !(propertyIdx & 0xFF000000); + } + bool isValueTypeAlias() const { + return !isObjectAlias() && (propertyIdx & 0xFF000000); + } + int propertyIndex() const { + return propertyIdx & 0x0000FFFF; + } + int valueTypeIndex() const { + return (propertyIdx & 0x00FF0000) >> 16; + } + int valueType() const { + return ((unsigned int)propertyIdx) >> 24; + } }; struct PropertyData { diff --git a/tests/auto/declarative/qdeclarativelanguage/data/alias.10.qml b/tests/auto/declarative/qdeclarativelanguage/data/alias.10.qml new file mode 100644 index 0000000..bf6352e --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/alias.10.qml @@ -0,0 +1,8 @@ +import Test 1.0 + +MyTypeObject { + id: root + property alias valueAlias: root.rectProperty + + rectProperty: "10,11,9x8" +} diff --git a/tests/auto/declarative/qdeclarativelanguage/data/alias.11.qml b/tests/auto/declarative/qdeclarativelanguage/data/alias.11.qml new file mode 100644 index 0000000..fbd50d9 --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/alias.11.qml @@ -0,0 +1,8 @@ +import Test 1.0 + +MyTypeObject { + id: root + + property alias aliasProperty: root.rectProperty.x + rectProperty: "19,13,100x120" +} diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.errors.txt new file mode 100644 index 0000000..93652a7 --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.errors.txt @@ -0,0 +1 @@ +5:23:Invalid alias location diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.qml b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.qml new file mode 100644 index 0000000..3ff7b16 --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.10.qml @@ -0,0 +1,6 @@ +import Test 1.0 + +MyTypeObject { + id: root + property alias a: root.rectProperty.blah +} diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.errors.txt index 7260be4..fbf1b58 100644 --- a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.errors.txt +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.errors.txt @@ -1 +1 @@ -5:23:Invalid alias reference. An alias reference must be specified as or . +5:23:Invalid alias reference. An alias reference must be specified as , . or .. diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.qml b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.qml index cc71753..a363373 100644 --- a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.qml +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.3.qml @@ -2,5 +2,5 @@ import Test 1.0 MyTypeObject { id: root - property alias a: root.rectProperty.x + property alias a: root.rectProperty.x.y } diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.4.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.4.errors.txt index 7260be4..fbf1b58 100644 --- a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.4.errors.txt +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.4.errors.txt @@ -1 +1 @@ -5:23:Invalid alias reference. An alias reference must be specified as or . +5:23:Invalid alias reference. An alias reference must be specified as , . or .. diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.errors.txt new file mode 100644 index 0000000..93652a7 --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.errors.txt @@ -0,0 +1 @@ +5:23:Invalid alias location diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.qml b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.qml new file mode 100644 index 0000000..4faa52d --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.8.qml @@ -0,0 +1,7 @@ +import Test 1.0 + +MyTypeObject { + id: root + property alias a: root.imaginary.x +} + diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.errors.txt new file mode 100644 index 0000000..93652a7 --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.errors.txt @@ -0,0 +1 @@ +5:23:Invalid alias location diff --git a/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.qml b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.qml new file mode 100644 index 0000000..f183912 --- /dev/null +++ b/tests/auto/declarative/qdeclarativelanguage/data/invalidAlias.9.qml @@ -0,0 +1,6 @@ +import Test 1.0 + +MyTypeObject { + id: root + property alias a: root.floatProperty.x +} diff --git a/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp b/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp index 2aac27e..6a45957 100644 --- a/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp +++ b/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp @@ -349,6 +349,9 @@ void tst_qdeclarativelanguage::errors_data() QTest::newRow("invalidAlias.5") << "invalidAlias.5.qml" << "invalidAlias.5.errors.txt" << false; QTest::newRow("invalidAlias.6") << "invalidAlias.6.qml" << "invalidAlias.6.errors.txt" << false; QTest::newRow("invalidAlias.7") << "invalidAlias.7.qml" << "invalidAlias.7.errors.txt" << false; + QTest::newRow("invalidAlias.8") << "invalidAlias.8.qml" << "invalidAlias.8.errors.txt" << false; + QTest::newRow("invalidAlias.9") << "invalidAlias.9.qml" << "invalidAlias.9.errors.txt" << false; + QTest::newRow("invalidAlias.10") << "invalidAlias.10.qml" << "invalidAlias.10.errors.txt" << false; QTest::newRow("invalidAttachedProperty.1") << "invalidAttachedProperty.1.qml" << "invalidAttachedProperty.1.errors.txt" << false; QTest::newRow("invalidAttachedProperty.2") << "invalidAttachedProperty.2.qml" << "invalidAttachedProperty.2.errors.txt" << false; @@ -1064,6 +1067,47 @@ void tst_qdeclarativelanguage::aliasProperties() delete object; } + + // Valuetype alias + // Simple "int" alias + { + QDeclarativeComponent component(&engine, TEST_FILE("alias.10.qml")); + VERIFY_ERRORS(0); + QObject *object = component.create(); + QVERIFY(object != 0); + + // Read through alias + QCOMPARE(object->property("valueAlias").toRect(), QRect(10, 11, 9, 8)); + object->setProperty("rectProperty", QVariant(QRect(33, 12, 99, 100))); + QCOMPARE(object->property("valueAlias").toRect(), QRect(33, 12, 99, 100)); + + // Write throught alias + object->setProperty("valueAlias", QVariant(QRect(3, 3, 4, 9))); + QCOMPARE(object->property("valueAlias").toRect(), QRect(3, 3, 4, 9)); + QCOMPARE(object->property("rectProperty").toRect(), QRect(3, 3, 4, 9)); + + delete object; + } + + // Valuetype sub-alias + { + QDeclarativeComponent component(&engine, TEST_FILE("alias.11.qml")); + VERIFY_ERRORS(0); + QObject *object = component.create(); + QVERIFY(object != 0); + + // Read through alias + QCOMPARE(object->property("aliasProperty").toInt(), 19); + object->setProperty("rectProperty", QVariant(QRect(33, 8, 102, 111))); + QCOMPARE(object->property("aliasProperty").toInt(), 33); + + // Write throught alias + object->setProperty("aliasProperty", QVariant(4)); + QCOMPARE(object->property("aliasProperty").toInt(), 4); + QCOMPARE(object->property("rectProperty").toRect(), QRect(4, 8, 102, 111)); + + delete object; + } } // QTBUG-13374 Test that alias properties and signals can coexist -- cgit v0.12