diff options
Diffstat (limited to 'src/declarative/qml/qmlcompiler_p.h')
| -rw-r--r-- | src/declarative/qml/qmlcompiler_p.h | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlcompiler_p.h b/src/declarative/qml/qmlcompiler_p.h new file mode 100644 index 0000000..f3f266b --- /dev/null +++ b/src/declarative/qml/qmlcompiler_p.h @@ -0,0 +1,337 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative 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 QMLCOMPILER_P_H +#define QMLCOMPILER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qml.h" +#include "qmlerror.h" +#include "qmlinstruction_p.h" +#include "qmlcompositetypemanager_p.h" +#include "qmlparser_p.h" +#include "qmlengine_p.h" +#include "qbitfield_p.h" +#include "qmlpropertycache_p.h" +#include "qmlintegercache_p.h" +#include "qmltypenamecache_p.h" + +#include <QtCore/qbytearray.h> +#include <QtCore/qset.h> + +QT_BEGIN_NAMESPACE + +class QmlEngine; +class QmlComponent; +class QmlContext; + +class QScriptProgram; +class Q_AUTOTEST_EXPORT QmlCompiledData : public QmlRefCount, public QmlCleanup +{ +public: + QmlCompiledData(QmlEngine *engine); + virtual ~QmlCompiledData(); + + QString name; + QUrl url; + QmlEnginePrivate::Imports imports; + QmlTypeNameCache *importCache; + + struct TypeReference + { + TypeReference() + : type(0), component(0), ref(0) {} + + QByteArray className; + QmlType *type; + QmlComponent *component; + + QmlRefCount *ref; + QObject *createInstance(QmlContext *, const QBitField &) const; + const QMetaObject *metaObject() const; + }; + QList<TypeReference> types; + struct CustomTypeData + { + int index; + int type; + }; + + const QMetaObject *root; + QAbstractDynamicMetaObject rootData; + QmlPropertyCache *rootPropertyCache; + QList<QString> primitives; + QList<float> floatData; + QList<int> intData; + QList<CustomTypeData> customTypeData; + QList<QByteArray> datas; + QList<QmlParser::Location> locations; + QList<QmlInstruction> bytecode; + QList<QScriptProgram *> cachedPrograms; + QList<QScriptValue *> cachedClosures; + QList<QmlPropertyCache *> propertyCaches; + QList<QmlIntegerCache *> contextCaches; + QList<QmlParser::Object::ScriptBlock> scripts; + QList<QUrl> urls; + + void dumpInstructions(); + +protected: + virtual void clear(); // From QmlCleanup + +private: + void dump(QmlInstruction *, int idx = -1); + QmlCompiledData(const QmlCompiledData &other); + QmlCompiledData &operator=(const QmlCompiledData &other); + QByteArray packData; + friend class QmlCompiler; + int pack(const char *, size_t); + + int indexForString(const QString &); + int indexForByteArray(const QByteArray &); + int indexForFloat(float *, int); + int indexForInt(int *, int); + int indexForLocation(const QmlParser::Location &); + int indexForLocation(const QmlParser::LocationSpan &); + int indexForUrl(const QUrl &); +}; + +class QMetaObjectBuilder; +class Q_DECLARATIVE_EXPORT QmlCompiler +{ +public: + QmlCompiler(); + + bool compile(QmlEngine *, QmlCompositeTypeData *, QmlCompiledData *); + + bool isError() const; + QList<QmlError> errors() const; + + static bool isValidId(const QString &); + static bool isAttachedPropertyName(const QByteArray &); + static bool isSignalPropertyName(const QByteArray &); + +private: + static void reset(QmlCompiledData *); + + struct BindingContext { + BindingContext() + : stack(0), owner(0), object(0) {} + BindingContext(QmlParser::Object *o) + : stack(0), owner(0), object(o) {} + BindingContext incr() const { + BindingContext rv(object); + rv.stack = stack + 1; + return rv; + } + bool isSubContext() const { return stack != 0; } + int stack; + int owner; + QmlParser::Object *object; + }; + + void compileTree(QmlParser::Object *tree); + + + bool buildObject(QmlParser::Object *obj, const BindingContext &); + bool buildScript(QmlParser::Object *obj, QmlParser::Object *script); + bool buildComponent(QmlParser::Object *obj, const BindingContext &); + bool buildSubObject(QmlParser::Object *obj, const BindingContext &); + bool buildSignal(QmlParser::Property *prop, QmlParser::Object *obj, + const BindingContext &); + bool buildProperty(QmlParser::Property *prop, QmlParser::Object *obj, + const BindingContext &); + bool buildPropertyInNamespace(QmlEnginePrivate::ImportedNamespace *ns, + QmlParser::Property *prop, + QmlParser::Object *obj, + const BindingContext &); + bool buildIdProperty(QmlParser::Property *prop, QmlParser::Object *obj); + bool buildAttachedProperty(QmlParser::Property *prop, + QmlParser::Object *obj, + const BindingContext &ctxt); + bool buildGroupedProperty(QmlParser::Property *prop, + QmlParser::Object *obj, + const BindingContext &ctxt); + bool buildValueTypeProperty(QObject *type, + QmlParser::Object *obj, + QmlParser::Object *baseObj, + const BindingContext &ctxt); + bool buildListProperty(QmlParser::Property *prop, + QmlParser::Object *obj, + const BindingContext &ctxt); + bool buildScriptStringProperty(QmlParser::Property *prop, + QmlParser::Object *obj, + const BindingContext &ctxt); + bool buildPropertyAssignment(QmlParser::Property *prop, + QmlParser::Object *obj, + const BindingContext &ctxt); + bool buildPropertyObjectAssignment(QmlParser::Property *prop, + QmlParser::Object *obj, + QmlParser::Value *value, + const BindingContext &ctxt); + bool buildPropertyLiteralAssignment(QmlParser::Property *prop, + QmlParser::Object *obj, + QmlParser::Value *value, + const BindingContext &ctxt); + bool doesPropertyExist(QmlParser::Property *prop, QmlParser::Object *obj); + bool testLiteralAssignment(const QMetaProperty &prop, + QmlParser::Value *value); + bool testQualifiedEnumAssignment(const QMetaProperty &prop, + QmlParser::Object *obj, + QmlParser::Value *value, + bool *isAssignment); + enum DynamicMetaMode { IgnoreAliases, ResolveAliases, ForceCreation }; + bool mergeDynamicMetaProperties(QmlParser::Object *obj); + bool buildDynamicMeta(QmlParser::Object *obj, DynamicMetaMode mode); + bool checkDynamicMeta(QmlParser::Object *obj); + bool buildBinding(QmlParser::Value *, QmlParser::Property *prop, + const BindingContext &ctxt); + bool buildComponentFromRoot(QmlParser::Object *obj, const BindingContext &); + bool compileAlias(QMetaObjectBuilder &, + QByteArray &data, + QmlParser::Object *obj, + const QmlParser::Object::DynamicProperty &); + bool completeComponentBuild(); + + + void genObject(QmlParser::Object *obj); + void genObjectBody(QmlParser::Object *obj); + void genComponent(QmlParser::Object *obj); + void genValueProperty(QmlParser::Property *prop, QmlParser::Object *obj); + void genListProperty(QmlParser::Property *prop, QmlParser::Object *obj); + void genPropertyAssignment(QmlParser::Property *prop, + QmlParser::Object *obj, + QmlParser::Property *valueTypeProperty = 0); + void genLiteralAssignment(const QMetaProperty &prop, + QmlParser::Value *value); + void genBindingAssignment(QmlParser::Value *binding, + QmlParser::Property *prop, + QmlParser::Object *obj, + QmlParser::Property *valueTypeProperty = 0); + int genContextCache(); + + int genValueTypeData(QmlParser::Property *prop, QmlParser::Property *valueTypeProp); + int genPropertyData(QmlParser::Property *prop); + + int componentTypeRef(); + + static int findSignalByName(const QMetaObject *, const QByteArray &name); + static QmlType *toQmlType(QmlParser::Object *from); + bool canCoerce(int to, QmlParser::Object *from); + bool canCoerce(int to, int from); + + QStringList deferredProperties(QmlParser::Object *); + + void addId(const QString &, QmlParser::Object *); + + void dumpStats(); + + struct BindingReference { + QmlParser::Variant expression; + QmlParser::Property *property; + QmlParser::Value *value; + + enum DataType { QtScript, Experimental }; + DataType dataType; + + int compiledIndex; + + QByteArray compiledData; + BindingContext bindingContext; + }; + void addBindingReference(const BindingReference &); + + struct ComponentCompileState + { + ComponentCompileState() + : parserStatusCount(0), pushedProperties(0), root(0) {} + QHash<QString, QmlParser::Object *> ids; + QHash<int, QmlParser::Object *> idIndexes; + int parserStatusCount; + int pushedProperties; + + QByteArray compiledBindingData; + + QHash<QmlParser::Value *, BindingReference> bindings; + QList<QmlParser::Object *> aliasingObjects; + QmlParser::Object *root; + }; + ComponentCompileState compileState; + + struct ComponentStat + { + ComponentStat() + : ids(0), scriptBindings(0), optimizedBindings(0), objects(0) {} + + int lineNumber; + + int ids; + int scriptBindings; + int optimizedBindings; + int objects; + }; + ComponentStat componentStat; + + void saveComponentState(); + + ComponentCompileState componentState(QmlParser::Object *); + QHash<QmlParser::Object *, ComponentCompileState> savedCompileStates; + QList<ComponentStat> savedComponentStats; + + QList<QmlError> exceptions; + QmlCompiledData *output; + QmlEngine *engine; + QmlParser::Object *unitRoot; + QmlCompositeTypeData *unit; +}; +QT_END_NAMESPACE + +#endif // QMLCOMPILER_P_H |