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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4RUNTIMEAPI_P_H
#define QV4RUNTIMEAPI_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 <private/qv4global_p.h>
QT_BEGIN_NAMESPACE
namespace QV4 {
typedef uint Bool;
struct NoThrowEngine;
namespace {
template <typename T>
struct ExceptionCheck {
enum { NeedsCheck = 1 };
};
// push_catch and pop context methods shouldn't check for exceptions
template <>
struct ExceptionCheck<void (*)(QV4::NoThrowEngine *)> {
enum { NeedsCheck = 0 };
};
template <typename A>
struct ExceptionCheck<void (*)(A, QV4::NoThrowEngine)> {
enum { NeedsCheck = 0 };
};
template <>
struct ExceptionCheck<QV4::ReturnedValue (*)(QV4::NoThrowEngine *)> {
enum { NeedsCheck = 0 };
};
template <typename A>
struct ExceptionCheck<QV4::ReturnedValue (*)(QV4::NoThrowEngine *, A)> {
enum { NeedsCheck = 0 };
};
template <typename A, typename B>
struct ExceptionCheck<QV4::ReturnedValue (*)(QV4::NoThrowEngine *, A, B)> {
enum { NeedsCheck = 0 };
};
template <typename A, typename B, typename C>
struct ExceptionCheck<void (*)(QV4::NoThrowEngine *, A, B, C)> {
enum { NeedsCheck = 0 };
};
} // anonymous namespace
#define FOR_EACH_RUNTIME_METHOD(F) \
/* call */ \
F(ReturnedValue, callGlobalLookup, (ExecutionEngine *engine, uint index, CallData *callData)) \
F(ReturnedValue, callActivationProperty, (ExecutionEngine *engine, int nameIndex, CallData *callData)) \
F(ReturnedValue, callQmlScopeObjectProperty, (ExecutionEngine *engine, int propertyIndex, CallData *callData)) \
F(ReturnedValue, callQmlContextObjectProperty, (ExecutionEngine *engine, int propertyIndex, CallData *callData)) \
F(ReturnedValue, callProperty, (ExecutionEngine *engine, int nameIndex, CallData *callData)) \
F(ReturnedValue, callPropertyLookup, (ExecutionEngine *engine, uint index, CallData *callData)) \
F(ReturnedValue, callElement, (ExecutionEngine *engine, const Value &index, CallData *callData)) \
F(ReturnedValue, callValue, (ExecutionEngine *engine, const Value &func, CallData *callData)) \
\
/* construct */ \
F(ReturnedValue, constructGlobalLookup, (ExecutionEngine *engine, uint index, CallData *callData)) \
F(ReturnedValue, constructActivationProperty, (ExecutionEngine *engine, int nameIndex, CallData *callData)) \
F(ReturnedValue, constructProperty, (ExecutionEngine *engine, int nameIndex, CallData *callData)) \
F(ReturnedValue, constructPropertyLookup, (ExecutionEngine *engine, uint index, CallData *callData)) \
F(ReturnedValue, constructValue, (ExecutionEngine *engine, const Value &func, CallData *callData)) \
\
/* set & get */ \
F(void, setActivationProperty, (ExecutionEngine *engine, int nameIndex, const Value &value)) \
F(void, setProperty, (ExecutionEngine *engine, const Value &object, int nameIndex, const Value &value)) \
F(void, setElement, (ExecutionEngine *engine, const Value &object, const Value &index, const Value &value)) \
F(ReturnedValue, getProperty, (ExecutionEngine *engine, const Value &object, int nameIndex)) \
F(ReturnedValue, getActivationProperty, (ExecutionEngine *engine, int nameIndex)) \
F(ReturnedValue, getElement, (ExecutionEngine *engine, const Value &object, const Value &index)) \
\
/* typeof */ \
F(ReturnedValue, typeofValue, (ExecutionEngine *engine, const Value &val)) \
F(ReturnedValue, typeofName, (ExecutionEngine *engine, int nameIndex)) \
F(ReturnedValue, typeofScopeObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex)) \
F(ReturnedValue, typeofContextObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex)) \
F(ReturnedValue, typeofMember, (ExecutionEngine *engine, const Value &base, int nameIndex)) \
F(ReturnedValue, typeofElement, (ExecutionEngine *engine, const Value &base, const Value &index)) \
\
/* delete */ \
F(ReturnedValue, deleteElement, (ExecutionEngine *engine, const Value &base, const Value &index)) \
F(ReturnedValue, deleteMember, (ExecutionEngine *engine, const Value &base, int nameIndex)) \
F(ReturnedValue, deleteMemberString, (ExecutionEngine *engine, const Value &base, String *name)) \
F(ReturnedValue, deleteName, (ExecutionEngine *engine, int nameIndex)) \
\
/* exceptions & scopes */ \
F(void, throwException, (ExecutionEngine *engine, const Value &value)) \
F(ReturnedValue, unwindException, (ExecutionEngine *engine)) \
F(void, pushWithScope, (const Value &o, NoThrowEngine *engine)) \
F(void, pushCatchScope, (NoThrowEngine *engine, int exceptionVarNameIndex)) \
F(void, popScope, (NoThrowEngine *engine)) \
\
/* closures */ \
F(ReturnedValue, closure, (ExecutionEngine *engine, int functionId)) \
\
/* function header */ \
F(void, declareVar, (ExecutionEngine *engine, bool deletable, int nameIndex)) \
F(ReturnedValue, setupArgumentsObject, (ExecutionEngine *engine)) \
F(void, convertThisToObject, (ExecutionEngine *engine)) \
\
/* literals */ \
F(ReturnedValue, arrayLiteral, (ExecutionEngine *engine, Value *values, uint length)) \
F(ReturnedValue, objectLiteral, (ExecutionEngine *engine, const Value *args, int classId, int arrayValueCount, int arrayGetterSetterCountAndFlags)) \
F(ReturnedValue, regexpLiteral, (ExecutionEngine *engine, int id)) \
\
/* foreach */ \
F(ReturnedValue, foreachIterator, (ExecutionEngine *engine, const Value &in)) \
F(ReturnedValue, foreachNextPropertyName, (const Value &foreach_iterator)) \
\
/* unary operators */ \
F(ReturnedValue, uPlus, (const Value &value)) \
F(ReturnedValue, uMinus, (const Value &value)) \
F(ReturnedValue, uNot, (const Value &value)) \
F(ReturnedValue, complement, (const Value &value)) \
F(ReturnedValue, increment, (const Value &value)) \
F(ReturnedValue, decrement, (const Value &value)) \
\
/* binary operators */ \
F(ReturnedValue, instanceof, (ExecutionEngine *engine, const Value &left, const Value &right)) \
F(ReturnedValue, in, (ExecutionEngine *engine, const Value &left, const Value &right)) \
F(ReturnedValue, add, (ExecutionEngine *engine, const Value &left, const Value &right)) \
F(ReturnedValue, addString, (ExecutionEngine *engine, const Value &left, const Value &right)) \
F(ReturnedValue, bitOr, (const Value &left, const Value &right)) \
F(ReturnedValue, bitXor, (const Value &left, const Value &right)) \
F(ReturnedValue, bitAnd, (const Value &left, const Value &right)) \
F(ReturnedValue, sub, (const Value &left, const Value &right)) \
F(ReturnedValue, mul, (const Value &left, const Value &right)) \
F(ReturnedValue, div, (const Value &left, const Value &right)) \
F(ReturnedValue, mod, (const Value &left, const Value &right)) \
F(ReturnedValue, shl, (const Value &left, const Value &right)) \
F(ReturnedValue, shr, (const Value &left, const Value &right)) \
F(ReturnedValue, ushr, (const Value &left, const Value &right)) \
F(ReturnedValue, greaterThan, (const Value &left, const Value &right)) \
F(ReturnedValue, lessThan, (const Value &left, const Value &right)) \
F(ReturnedValue, greaterEqual, (const Value &left, const Value &right)) \
F(ReturnedValue, lessEqual, (const Value &left, const Value &right)) \
F(ReturnedValue, equal, (const Value &left, const Value &right)) \
F(ReturnedValue, notEqual, (const Value &left, const Value &right)) \
F(ReturnedValue, strictEqual, (const Value &left, const Value &right)) \
F(ReturnedValue, strictNotEqual, (const Value &left, const Value &right)) \
\
/* comparisons */ \
F(Bool, compareGreaterThan, (const Value &l, const Value &r)) \
F(Bool, compareLessThan, (const Value &l, const Value &r)) \
F(Bool, compareGreaterEqual, (const Value &l, const Value &r)) \
F(Bool, compareLessEqual, (const Value &l, const Value &r)) \
F(Bool, compareEqual, (const Value &left, const Value &right)) \
F(Bool, compareNotEqual, (const Value &left, const Value &right)) \
F(Bool, compareStrictEqual, (const Value &left, const Value &right)) \
F(Bool, compareStrictNotEqual, (const Value &left, const Value &right)) \
\
F(Bool, compareInstanceof, (ExecutionEngine *engine, const Value &left, const Value &right)) \
F(Bool, compareIn, (ExecutionEngine *engine, const Value &left, const Value &right)) \
\
/* conversions */ \
F(Bool, toBoolean, (const Value &value)) \
F(ReturnedValue, toDouble, (const Value &value)) \
F(int, toInt, (const Value &value)) \
F(int, doubleToInt, (const double &d)) \
F(unsigned, toUInt, (const Value &value)) \
F(unsigned, doubleToUInt, (const double &d)) \
\
/* qml */ \
F(ReturnedValue, getQmlContext, (NoThrowEngine *engine)) \
F(ReturnedValue, getQmlImportedScripts, (NoThrowEngine *engine)) \
F(ReturnedValue, getQmlSingleton, (NoThrowEngine *engine, int nameIndex)) \
F(ReturnedValue, getQmlAttachedProperty, (ExecutionEngine *engine, int attachedPropertiesId, int propertyIndex)) \
F(ReturnedValue, getQmlScopeObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, bool captureRequired)) \
F(ReturnedValue, getQmlContextObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, bool captureRequired)) \
F(ReturnedValue, getQmlQObjectProperty, (ExecutionEngine *engine, const Value &object, int propertyIndex, bool captureRequired)) \
F(ReturnedValue, getQmlSingletonQObjectProperty, (ExecutionEngine *engine, const Value &object, int propertyIndex, bool captureRequired)) \
F(ReturnedValue, getQmlIdObject, (ExecutionEngine *engine, const Value &context, uint index)) \
\
F(void, setQmlScopeObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, const Value &value)) \
F(void, setQmlContextObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, const Value &value)) \
F(void, setQmlQObjectProperty, (ExecutionEngine *engine, const Value &object, int propertyIndex, const Value &value))
struct Q_QML_PRIVATE_EXPORT Runtime {
Runtime();
typedef ReturnedValue (*UnaryOperation)(const Value &value);
typedef ReturnedValue (*BinaryOperation)(const Value &left, const Value &right);
typedef ReturnedValue (*BinaryOperationContext)(ExecutionEngine *engine, const Value &left, const Value &right);
#define DEFINE_RUNTIME_METHOD_ENUM(returnvalue, name, args) name,
enum RuntimeMethods {
FOR_EACH_RUNTIME_METHOD(DEFINE_RUNTIME_METHOD_ENUM)
RuntimeMethodCount,
InvalidRuntimeMethod = RuntimeMethodCount
};
#undef DEFINE_RUNTIME_METHOD_ENUM
void *runtimeMethods[RuntimeMethodCount];
static uint runtimeMethodOffset(RuntimeMethods method) { return method*QT_POINTER_SIZE; }
#define RUNTIME_METHOD(returnvalue, name, args) \
typedef returnvalue (*Method_##name)args; \
enum { Method_##name##_NeedsExceptionCheck = ExceptionCheck<Method_##name>::NeedsCheck }; \
static returnvalue method_##name args;
FOR_EACH_RUNTIME_METHOD(RUNTIME_METHOD)
#undef RUNTIME_METHOD
};
static_assert(std::is_standard_layout<Runtime>::value, "Runtime needs to be standard layout in order for us to be able to use offsetof");
static_assert(offsetof(Runtime, runtimeMethods) == 0, "JIT expects this to be the first member");
static_assert(sizeof(Runtime::BinaryOperation) == sizeof(void*), "JIT expects a function pointer to fit into a regular pointer, for cross-compilation offset translation");
} // namespace QV4
QT_END_NAMESPACE
#endif // QV4RUNTIMEAPI_P_H
|
