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Diffstat (limited to 'src/declarative/qml/qdeclarativecompiler_p.h')
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diff --git a/src/declarative/qml/qdeclarativecompiler_p.h b/src/declarative/qml/qdeclarativecompiler_p.h new file mode 100644 index 0000000000..93b6a0961e --- /dev/null +++ b/src/declarative/qml/qdeclarativecompiler_p.h @@ -0,0 +1,351 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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 QDECLARATIVECOMPILER_P_H +#define QDECLARATIVECOMPILER_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 "qdeclarative.h" +#include "qdeclarativeerror.h" +#include "private/qdeclarativeinstruction_p.h" +#include "private/qdeclarativeparser_p.h" +#include "private/qdeclarativeengine_p.h" +#include "private/qbitfield_p.h" +#include "private/qdeclarativepropertycache_p.h" +#include "private/qdeclarativeintegercache_p.h" +#include "private/qdeclarativetypenamecache_p.h" +#include "private/qdeclarativetypeloader_p.h" + +#include <QtCore/qbytearray.h> +#include <QtCore/qset.h> +#include <QtCore/QCoreApplication> + +QT_BEGIN_NAMESPACE + +class QDeclarativeEngine; +class QDeclarativeComponent; +class QDeclarativeContext; +class QDeclarativeContextData; + +class QScriptProgram; +class Q_AUTOTEST_EXPORT QDeclarativeCompiledData : public QDeclarativeRefCount, public QDeclarativeCleanup +{ +public: + QDeclarativeCompiledData(QDeclarativeEngine *engine); + virtual ~QDeclarativeCompiledData(); + + QString name; + QUrl url; + QDeclarativeTypeNameCache *importCache; + + struct TypeReference + { + TypeReference() + : type(0), typePropertyCache(0), component(0) {} + + QByteArray className; + QDeclarativeType *type; + QDeclarativePropertyCache *typePropertyCache; + QDeclarativeCompiledData *component; + + QObject *createInstance(QDeclarativeContextData *, const QBitField &, QList<QDeclarativeError> *) const; + const QMetaObject *metaObject() const; + QDeclarativePropertyCache *propertyCache() const; + QDeclarativePropertyCache *createPropertyCache(QDeclarativeEngine *); + }; + QList<TypeReference> types; + struct CustomTypeData + { + int index; + int type; + }; + + const QMetaObject *root; + QAbstractDynamicMetaObject rootData; + QDeclarativePropertyCache *rootPropertyCache; + QList<QString> primitives; + QList<float> floatData; + QList<int> intData; + QList<CustomTypeData> customTypeData; + QList<QByteArray> datas; + QList<QDeclarativeParser::Location> locations; + QList<QDeclarativeInstruction> bytecode; + QList<QScriptProgram *> cachedPrograms; + QList<QScriptValue *> cachedClosures; + QList<QDeclarativePropertyCache *> propertyCaches; + QList<QDeclarativeIntegerCache *> contextCaches; + QList<QDeclarativeParser::Object::ScriptBlock> scripts; + QList<QUrl> urls; + + void dumpInstructions(); + +protected: + virtual void clear(); // From QDeclarativeCleanup + +private: + void dump(QDeclarativeInstruction *, int idx = -1); + QDeclarativeCompiledData(const QDeclarativeCompiledData &other); + QDeclarativeCompiledData &operator=(const QDeclarativeCompiledData &other); + QByteArray packData; + friend class QDeclarativeCompiler; + 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 QDeclarativeParser::Location &); + int indexForLocation(const QDeclarativeParser::LocationSpan &); + int indexForUrl(const QUrl &); +}; + +class QMetaObjectBuilder; +class Q_AUTOTEST_EXPORT QDeclarativeCompiler +{ + Q_DECLARE_TR_FUNCTIONS(QDeclarativeCompiler) +public: + QDeclarativeCompiler(); + + bool compile(QDeclarativeEngine *, QDeclarativeTypeData *, QDeclarativeCompiledData *); + + bool isError() const; + QList<QDeclarativeError> errors() const; + + static bool isAttachedPropertyName(const QByteArray &); + static bool isSignalPropertyName(const QByteArray &); + + int evaluateEnum(const QByteArray& script) const; // for QDeclarativeCustomParser::evaluateEnum + const QMetaObject *resolveType(const QByteArray& name) const; // for QDeclarativeCustomParser::resolveType + int rewriteBinding(const QString& expression, const QByteArray& name); // for QDeclarativeCustomParser::rewriteBinding + +private: + static void reset(QDeclarativeCompiledData *); + + struct BindingContext { + BindingContext() + : stack(0), owner(0), object(0) {} + BindingContext(QDeclarativeParser::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; + QDeclarativeParser::Object *object; + }; + + void compileTree(QDeclarativeParser::Object *tree); + + + bool buildObject(QDeclarativeParser::Object *obj, const BindingContext &); + bool buildComponent(QDeclarativeParser::Object *obj, const BindingContext &); + bool buildSubObject(QDeclarativeParser::Object *obj, const BindingContext &); + bool buildSignal(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj, + const BindingContext &); + bool buildProperty(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj, + const BindingContext &); + bool buildPropertyInNamespace(QDeclarativeImportedNamespace *ns, + QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + const BindingContext &); + bool buildIdProperty(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj); + bool buildAttachedProperty(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + const BindingContext &ctxt); + bool buildGroupedProperty(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + const BindingContext &ctxt); + bool buildValueTypeProperty(QObject *type, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Object *baseObj, + const BindingContext &ctxt); + bool buildListProperty(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + const BindingContext &ctxt); + bool buildScriptStringProperty(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + const BindingContext &ctxt); + bool buildPropertyAssignment(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + const BindingContext &ctxt); + bool buildPropertyObjectAssignment(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Value *value, + const BindingContext &ctxt); + bool buildPropertyOnAssignment(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Object *baseObj, + QDeclarativeParser::Value *value, + const BindingContext &ctxt); + bool buildPropertyLiteralAssignment(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Value *value, + const BindingContext &ctxt); + bool doesPropertyExist(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj); + bool testLiteralAssignment(const QMetaProperty &prop, + QDeclarativeParser::Value *value); + bool testQualifiedEnumAssignment(const QMetaProperty &prop, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Value *value, + bool *isAssignment); + enum DynamicMetaMode { IgnoreAliases, ResolveAliases, ForceCreation }; + bool mergeDynamicMetaProperties(QDeclarativeParser::Object *obj); + bool buildDynamicMeta(QDeclarativeParser::Object *obj, DynamicMetaMode mode); + bool checkDynamicMeta(QDeclarativeParser::Object *obj); + bool buildBinding(QDeclarativeParser::Value *, QDeclarativeParser::Property *prop, + const BindingContext &ctxt); + bool buildComponentFromRoot(QDeclarativeParser::Object *obj, const BindingContext &); + bool compileAlias(QMetaObjectBuilder &, + QByteArray &data, + QDeclarativeParser::Object *obj, + const QDeclarativeParser::Object::DynamicProperty &); + bool completeComponentBuild(); + bool checkValidId(QDeclarativeParser::Value *, const QString &); + + + void genObject(QDeclarativeParser::Object *obj); + void genObjectBody(QDeclarativeParser::Object *obj); + void genValueTypeProperty(QDeclarativeParser::Object *obj,QDeclarativeParser::Property *); + void genComponent(QDeclarativeParser::Object *obj); + void genValueProperty(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj); + void genListProperty(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj); + void genPropertyAssignment(QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Property *valueTypeProperty = 0); + void genLiteralAssignment(const QMetaProperty &prop, + QDeclarativeParser::Value *value); + void genBindingAssignment(QDeclarativeParser::Value *binding, + QDeclarativeParser::Property *prop, + QDeclarativeParser::Object *obj, + QDeclarativeParser::Property *valueTypeProperty = 0); + int genContextCache(); + + int genValueTypeData(QDeclarativeParser::Property *prop, QDeclarativeParser::Property *valueTypeProp); + int genPropertyData(QDeclarativeParser::Property *prop); + + int componentTypeRef(); + + static QDeclarativeType *toQmlType(QDeclarativeParser::Object *from); + bool canCoerce(int to, QDeclarativeParser::Object *from); + + QStringList deferredProperties(QDeclarativeParser::Object *); + int indexOfProperty(QDeclarativeParser::Object *, const QByteArray &, bool *notInRevision = 0); + int indexOfSignal(QDeclarativeParser::Object *, const QByteArray &, bool *notInRevision = 0); + + void addId(const QString &, QDeclarativeParser::Object *); + + void dumpStats(); + + struct BindingReference { + QDeclarativeParser::Variant expression; + QDeclarativeParser::Property *property; + QDeclarativeParser::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, QDeclarativeParser::Object *> ids; + QHash<int, QDeclarativeParser::Object *> idIndexes; + int parserStatusCount; + int pushedProperties; + + QByteArray compiledBindingData; + + QHash<QDeclarativeParser::Value *, BindingReference> bindings; + QHash<QDeclarativeParser::Value *, BindingContext> signalExpressions; + QList<QDeclarativeParser::Object *> aliasingObjects; + QDeclarativeParser::Object *root; + }; + ComponentCompileState compileState; + + struct ComponentStat + { + ComponentStat() : ids(0), objects(0) {} + + int lineNumber; + + int ids; + QList<QDeclarativeParser::LocationSpan> scriptBindings; + QList<QDeclarativeParser::LocationSpan> optimizedBindings; + int objects; + }; + ComponentStat componentStat; + + void saveComponentState(); + + ComponentCompileState componentState(QDeclarativeParser::Object *); + QHash<QDeclarativeParser::Object *, ComponentCompileState> savedCompileStates; + QList<ComponentStat> savedComponentStats; + + QList<QDeclarativeError> exceptions; + QDeclarativeCompiledData *output; + QDeclarativeEngine *engine; + QDeclarativeEnginePrivate *enginePrivate; + QDeclarativeParser::Object *unitRoot; + QDeclarativeTypeData *unit; +}; +QT_END_NAMESPACE + +#endif // QDECLARATIVECOMPILER_P_H |