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Diffstat (limited to 'src/declarative/qml/v4/qdeclarativev4compiler_p_p.h')
| -rw-r--r-- | src/declarative/qml/v4/qdeclarativev4compiler_p_p.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/declarative/qml/v4/qdeclarativev4compiler_p_p.h b/src/declarative/qml/v4/qdeclarativev4compiler_p_p.h new file mode 100644 index 0000000000..1b2a998422 --- /dev/null +++ b/src/declarative/qml/v4/qdeclarativev4compiler_p_p.h @@ -0,0 +1,184 @@ +/**************************************************************************** +** +** 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 QDECLARATIVEV4COMPILER_P_P_H +#define QDECLARATIVEV4COMPILER_P_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 "qdeclarativev4instruction_p.h" +#include "qdeclarativev4ir_p.h" +#include <private/qdeclarativeparser_p.h> +#include <private/qdeclarativeimport_p.h> +#include <private/qdeclarativeengine_p.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QDeclarativeV4CompilerPrivate: protected QDeclarativeJS::IR::ExprVisitor, + protected QDeclarativeJS::IR::StmtVisitor +{ +public: + QDeclarativeV4CompilerPrivate(); + + void resetInstanceState(); + int commitCompile(); + + const QDeclarativeV4Compiler::Expression *expression; + QDeclarativeEnginePrivate *engine; + + QString contextName() const { return QLatin1String("$$$SCOPE_") + QString::number((quintptr)expression->context, 16); } + + bool compile(QDeclarativeJS::AST::Node *); + + QHash<int, QPair<int, int> > registerCleanups; + + int registerLiteralString(quint8 reg, const QString &); + int registerString(const QString &); + QHash<QString, QPair<int, int> > registeredStrings; + QByteArray data; + + bool blockNeedsSubscription(const QStringList &); + int subscriptionIndex(const QStringList &); + quint32 subscriptionBlockMask(const QStringList &); + + quint8 exceptionId(quint32 line, quint32 column); + quint8 exceptionId(QDeclarativeJS::AST::ExpressionNode *); + QVector<quint64> exceptions; + + QHash<int, quint32> usedSubscriptionIds; + + QHash<QString, int> subscriptionIds; + QDeclarativeJS::Bytecode bytecode; + + // back patching + struct Patch { + QDeclarativeJS::IR::BasicBlock *block; // the basic block + int offset; // the index of the instruction to patch + Patch(QDeclarativeJS::IR::BasicBlock *block = 0, int index = -1) + : block(block), offset(index) {} + }; + QVector<Patch> patches; + + // Committed binding data + struct { + QList<int> offsets; + QList<QHash<int, quint32> > dependencies; + + //QDeclarativeJS::Bytecode bytecode; + QByteArray bytecode; + QByteArray data; + QHash<QString, int> subscriptionIds; + QVector<quint64> exceptions; + + QHash<QString, QPair<int, int> > registeredStrings; + + int count() const { return offsets.count(); } + } committed; + + QByteArray buildSignalTable() const; + QByteArray buildExceptionData() const; + + void convertToReal(QDeclarativeJS::IR::Expr *expr, int reg); + void convertToInt(QDeclarativeJS::IR::Expr *expr, int reg); + void convertToBool(QDeclarativeJS::IR::Expr *expr, int reg); + quint8 instructionOpcode(QDeclarativeJS::IR::Binop *e); + +protected: + + // + // tracing + // + void trace(int line, int column); + void trace(QVector<QDeclarativeJS::IR::BasicBlock *> *blocks); + void traceExpression(QDeclarativeJS::IR::Expr *e, quint8 r); + + inline void gen(const QDeclarativeJS::Instr &i) { bytecode.append(i); } + + // + // expressions + // + virtual void visitConst(QDeclarativeJS::IR::Const *e); + virtual void visitString(QDeclarativeJS::IR::String *e); + virtual void visitName(QDeclarativeJS::IR::Name *e); + virtual void visitTemp(QDeclarativeJS::IR::Temp *e); + virtual void visitUnop(QDeclarativeJS::IR::Unop *e); + virtual void visitBinop(QDeclarativeJS::IR::Binop *e); + virtual void visitCall(QDeclarativeJS::IR::Call *e); + + // + // statements + // + virtual void visitExp(QDeclarativeJS::IR::Exp *s); + virtual void visitMove(QDeclarativeJS::IR::Move *s); + virtual void visitJump(QDeclarativeJS::IR::Jump *s); + virtual void visitCJump(QDeclarativeJS::IR::CJump *s); + virtual void visitRet(QDeclarativeJS::IR::Ret *s); + +private: + QStringList _subscribeName; + QDeclarativeJS::IR::Function *_function; + QDeclarativeJS::IR::BasicBlock *_block; + void discard() { _discarded = true; } + bool _discarded; + quint8 currentReg; + + bool usedSubscriptionIdsChanged; + quint32 currentBlockMask; +}; + + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QDECLARATIVEV4COMPILER_P_P_H + |