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diff --git a/src/qml/jsruntime/qv4errorobject_p.h b/src/qml/jsruntime/qv4errorobject_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QV4ERROROBJECT_H
+#define QV4ERROROBJECT_H
+
+#include "qv4object_p.h"
+#include "qv4functionobject_p.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace QV4 {
+
+struct SyntaxErrorObject;
+
+struct ErrorObject: Object {
+    Q_MANAGED
+
+    enum ErrorType {
+        Error,
+        EvalError,
+        RangeError,
+        ReferenceError,
+        SyntaxError,
+        TypeError,
+        URIError
+    };
+
+    ErrorObject(ExecutionEngine *engine, const Value &message, ErrorType t = Error);
+
+    SyntaxErrorObject *asSyntaxError();
+
+    ExecutionEngine::StackTrace stackTrace;
+    String *stack;
+
+    static Value method_get_stack(SimpleCallContext *ctx);
+    static void markObjects(Managed *that);
+    static void destroy(Managed *that) { static_cast<ErrorObject *>(that)->~ErrorObject(); }
+};
+
+struct EvalErrorObject: ErrorObject {
+    EvalErrorObject(ExecutionEngine *engine, const Value &message);
+};
+
+struct RangeErrorObject: ErrorObject {
+    RangeErrorObject(ExecutionEngine *engine, const Value &message);
+    RangeErrorObject(ExecutionEngine *engine, const QString &msg);
+};
+
+struct ReferenceErrorObject: ErrorObject {
+    ReferenceErrorObject(ExecutionEngine *engine, const Value &message);
+    ReferenceErrorObject(ExecutionEngine *engine, const QString &msg);
+    ReferenceErrorObject(ExecutionEngine *engine, const QString &msg, const QString &fileName, int lineNumber);
+};
+
+struct SyntaxErrorObject: ErrorObject {
+    SyntaxErrorObject(ExecutionEngine *engine, const Value &msg);
+    SyntaxErrorObject(ExecutionEngine *engine, const QString &msg);
+    SyntaxErrorObject(ExecutionContext *ctx, DiagnosticMessage *msg);
+    ~SyntaxErrorObject() { delete msg; }
+    static void destroy(Managed *that) { static_cast<SyntaxErrorObject *>(that)->~SyntaxErrorObject(); }
+
+    DiagnosticMessage *message() { return msg; }
+
+private:
+    DiagnosticMessage *msg;
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct TypeErrorObject: ErrorObject {
+    TypeErrorObject(ExecutionEngine *engine, const Value &message);
+    TypeErrorObject(ExecutionEngine *engine, const QString &msg);
+};
+
+struct URIErrorObject: ErrorObject {
+    URIErrorObject(ExecutionEngine *engine, const Value &message);
+};
+
+struct ErrorCtor: FunctionObject
+{
+    ErrorCtor(ExecutionContext *scope);
+    ErrorCtor(ExecutionContext *scope, String *name);
+
+    static Value construct(Managed *, Value *args, int argc);
+    static Value call(Managed *that, const Value &, Value *, int);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct EvalErrorCtor: ErrorCtor
+{
+    EvalErrorCtor(ExecutionContext *scope);
+
+    static Value construct(Managed *m, Value *args, int argc);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct RangeErrorCtor: ErrorCtor
+{
+    RangeErrorCtor(ExecutionContext *scope);
+
+    static Value construct(Managed *m, Value *args, int argc);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct ReferenceErrorCtor: ErrorCtor
+{
+    ReferenceErrorCtor(ExecutionContext *scope);
+
+    static Value construct(Managed *m, Value *args, int argc);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct SyntaxErrorCtor: ErrorCtor
+{
+    SyntaxErrorCtor(ExecutionContext *scope);
+
+    static Value construct(Managed *m, Value *args, int argc);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct TypeErrorCtor: ErrorCtor
+{
+    TypeErrorCtor(ExecutionContext *scope);
+
+    static Value construct(Managed *m, Value *args, int argc);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+struct URIErrorCtor: ErrorCtor
+{
+    URIErrorCtor(ExecutionContext *scope);
+
+    static Value construct(Managed *m, Value *args, int argc);
+
+protected:
+    static const ManagedVTable static_vtbl;
+};
+
+
+struct ErrorPrototype: ErrorObject
+{
+    // ### shouldn't be undefined
+    ErrorPrototype(ExecutionEngine *engine): ErrorObject(engine, Value::undefinedValue()) {}
+    void init(ExecutionEngine *engine, const Value &ctor) { init(engine, ctor, this); }
+
+    static void init(ExecutionEngine *engine, const Value &ctor, Object *obj);
+    static Value method_toString(SimpleCallContext *ctx);
+};
+
+struct EvalErrorPrototype: EvalErrorObject
+{
+    EvalErrorPrototype(ExecutionEngine *engine): EvalErrorObject(engine, Value::undefinedValue()) { vtbl = &static_vtbl; }
+    void init(ExecutionEngine *engine, const Value &ctor) { ErrorPrototype::init(engine, ctor, this); }
+};
+
+struct RangeErrorPrototype: RangeErrorObject
+{
+    RangeErrorPrototype(ExecutionEngine *engine): RangeErrorObject(engine, Value::undefinedValue()) { vtbl = &static_vtbl; }
+    void init(ExecutionEngine *engine, const Value &ctor) { ErrorPrototype::init(engine, ctor, this); }
+};
+
+struct ReferenceErrorPrototype: ReferenceErrorObject
+{
+    ReferenceErrorPrototype(ExecutionEngine *engine): ReferenceErrorObject(engine, Value::undefinedValue()) { vtbl = &static_vtbl; }
+    void init(ExecutionEngine *engine, const Value &ctor) { ErrorPrototype::init(engine, ctor, this); }
+};
+
+struct SyntaxErrorPrototype: SyntaxErrorObject
+{
+    SyntaxErrorPrototype(ExecutionEngine *engine): SyntaxErrorObject(engine, 0) { vtbl = &static_vtbl; }
+    void init(ExecutionEngine *engine, const Value &ctor) { ErrorPrototype::init(engine, ctor, this); }
+};
+
+struct TypeErrorPrototype: TypeErrorObject
+{
+    TypeErrorPrototype(ExecutionEngine *engine): TypeErrorObject(engine, Value::undefinedValue()) { vtbl = &static_vtbl; }
+    void init(ExecutionEngine *engine, const Value &ctor) { ErrorPrototype::init(engine, ctor, this); }
+};
+
+struct URIErrorPrototype: URIErrorObject
+{
+    URIErrorPrototype(ExecutionEngine *engine): URIErrorObject(engine, Value::undefinedValue()) { vtbl = &static_vtbl; }
+    void init(ExecutionEngine *engine, const Value &ctor) { ErrorPrototype::init(engine, ctor, this); }
+};
+
+
+inline SyntaxErrorObject *ErrorObject::asSyntaxError()
+{
+    return subtype == SyntaxError ? static_cast<SyntaxErrorObject *>(this) : 0;
+}
+
+}
+
+QT_END_NAMESPACE
+
+#endif // QV4ECMAOBJECTS_P_H