Long live Qt 4.5!

1 files changed, 368 insertions, 0 deletions

diff --git a/src/script/qscriptecmaerror.cpp b/src/script/qscriptecmaerror.cpp
new file mode 100644
index 0000000..fc39bf9
--- /dev/null
+++ b/src/script/qscriptecmaerror.cpp
@@ -0,0 +1,368 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtScript 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qscriptecmaerror_p.h"
+
+#ifndef QT_NO_SCRIPT
+
+#include "qscriptengine_p.h"
+#include "qscriptvalueimpl_p.h"
+#include "qscriptcontext_p.h"
+#include "qscriptmember_p.h"
+#include "qscriptobject_p.h"
+
+#include <QtCore/QtDebug>
+
+QT_BEGIN_NAMESPACE
+
+namespace QScript { namespace Ecma {
+
+static QString getMessage(QScriptContextPrivate *context)
+{
+    if (context->argumentCount() > 0)
+        return context->argument(0).toString();
+    return QString();
+}
+
+static void setDebugInformation(QScriptValueImpl *error, QScriptContextPrivate *context)
+{
+    Q_ASSERT(context->previous);    
+    context->previous->setDebugInformation(error);
+}
+
+static QScriptValueImpl method_EvalError(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl result;
+    if (context->isCalledAsConstructor())
+        result = context->thisObject();
+    eng->errorConstructor->newEvalError(&result, getMessage(context));
+    setDebugInformation(&result, context);
+    return result;
+}
+
+static QScriptValueImpl method_RangeError(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl result;
+    if (context->isCalledAsConstructor())
+        result = context->thisObject();
+    eng->errorConstructor->newRangeError(&result, getMessage(context));
+    setDebugInformation(&result, context);
+    return result;
+}
+
+static QScriptValueImpl method_ReferenceError(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl result;
+    if (context->isCalledAsConstructor())
+        result = context->thisObject();
+    eng->errorConstructor->newReferenceError(&result, getMessage(context));
+    setDebugInformation(&result, context);
+    return result;
+}
+
+static QScriptValueImpl method_SyntaxError(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl result;
+    if (context->isCalledAsConstructor())
+        result = context->thisObject();
+    eng->errorConstructor->newSyntaxError(&result, getMessage(context));
+    setDebugInformation(&result, context);
+    return result;
+}
+
+static QScriptValueImpl method_TypeError(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl result;
+    if (context->isCalledAsConstructor())
+        result = context->thisObject();
+    eng->errorConstructor->newTypeError(&result, getMessage(context));
+    setDebugInformation(&result, context);
+    return result;
+}
+
+static QScriptValueImpl method_UriError(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl result;
+    if (context->isCalledAsConstructor())
+        result = context->thisObject();
+    eng->errorConstructor->newURIError(&result, getMessage(context));
+    setDebugInformation(&result, context);
+    return result;
+}
+
+Error::Error(QScriptEnginePrivate *eng):
+    Core(eng, QLatin1String("Error"), QScriptClassInfo::ErrorType)
+{
+    eng->newFunction(&ctor, this);
+    newErrorPrototype(&publicPrototype, QScriptValueImpl(), ctor, QLatin1String("Error"));
+    addPrototypeFunction(QLatin1String("backtrace"), method_backtrace, 0);
+    addPrototypeFunction(QLatin1String("toString"), method_toString, 0);
+
+    // native errors
+
+    evalErrorCtor = eng->createFunction(method_EvalError, 3,
+                                        classInfo(), QLatin1String("EvalError"));
+    rangeErrorCtor = eng->createFunction(method_RangeError, 3,
+                                         classInfo(), QLatin1String("RangeError"));
+    referenceErrorCtor = eng->createFunction(method_ReferenceError, 3,
+                                             classInfo(), QLatin1String("ReferenceError"));
+    syntaxErrorCtor = eng->createFunction(method_SyntaxError, 3,
+                                          classInfo(), QLatin1String("SyntaxError"));
+    typeErrorCtor = eng->createFunction(method_TypeError, 3,
+                                        classInfo(), QLatin1String("TypeError"));
+    uriErrorCtor = eng->createFunction(method_UriError, 3,
+                                       classInfo(), QLatin1String("URIError"));
+
+    newErrorPrototype(&evalErrorPrototype, publicPrototype,
+                      evalErrorCtor, QLatin1String("EvalError"));
+    newErrorPrototype(&rangeErrorPrototype, publicPrototype,
+                      rangeErrorCtor, QLatin1String("RangeError"));
+    newErrorPrototype(&referenceErrorPrototype, publicPrototype,
+                      referenceErrorCtor, QLatin1String("ReferenceError"));
+    newErrorPrototype(&syntaxErrorPrototype, publicPrototype,
+                      syntaxErrorCtor, QLatin1String("SyntaxError"));
+    newErrorPrototype(&typeErrorPrototype, publicPrototype,
+                      typeErrorCtor, QLatin1String("TypeError"));
+    newErrorPrototype(&uriErrorPrototype, publicPrototype,
+                      uriErrorCtor, QLatin1String("URIError"));
+}
+
+Error::~Error()
+{
+}
+
+void Error::execute(QScriptContextPrivate *context)
+{
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+    engine()->notifyFunctionEntry(context);
+#endif
+    QString message = QString();
+
+    if (context->argumentCount() > 0)
+        message = context->argument(0).toString();
+
+    QScriptValueImpl result;
+    newError(&result, publicPrototype, message);
+
+    setDebugInformation(&result, context);
+
+    context->setReturnValue(result);
+#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
+    engine()->notifyFunctionExit(context);
+#endif
+}
+
+void Error::mark(QScriptEnginePrivate *eng, int generation)
+{
+    Core::mark(eng, generation);
+
+    eng->markObject(evalErrorCtor, generation);
+    eng->markObject(rangeErrorCtor, generation);
+    eng->markObject(referenceErrorCtor, generation);
+    eng->markObject(syntaxErrorCtor, generation);
+    eng->markObject(typeErrorCtor, generation);
+    eng->markObject(uriErrorCtor, generation);
+
+    eng->markObject(evalErrorPrototype, generation);
+    eng->markObject(rangeErrorPrototype, generation);
+    eng->markObject(referenceErrorPrototype, generation);
+    eng->markObject(syntaxErrorPrototype, generation);
+    eng->markObject(typeErrorPrototype, generation);
+    eng->markObject(uriErrorPrototype, generation);
+}
+
+void Error::newError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, publicPrototype, message);
+}
+
+void Error::newEvalError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, evalErrorPrototype, message);
+}
+
+void Error::newRangeError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, rangeErrorPrototype, message);
+}
+
+void Error::newReferenceError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, referenceErrorPrototype, message);
+}
+
+void Error::newSyntaxError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, syntaxErrorPrototype, message);
+}
+
+void Error::newTypeError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, typeErrorPrototype, message);
+}
+
+void Error::newURIError(QScriptValueImpl *result, const QString &message)
+{
+    newError(result, uriErrorPrototype, message);
+}
+
+void Error::newError(QScriptValueImpl *result, const QScriptValueImpl &proto,
+                     const QString &message)
+{
+    QScriptEnginePrivate *eng_p = engine();
+
+    if (!result->isValid())
+        eng_p->newObject(result, proto, classInfo());
+    else
+        result->setClassInfo(classInfo());
+    result->setProperty(QLatin1String("message"), QScriptValueImpl(eng_p, message));
+}
+
+void Error::newErrorPrototype(QScriptValueImpl *result, const QScriptValueImpl &proto,
+                              QScriptValueImpl &ztor, const QString &name)
+{
+    newError(result, proto);
+    result->setProperty(QLatin1String("name"), QScriptValueImpl(engine(), name));
+    result->setProperty(QLatin1String("constructor"), ztor,
+                        QScriptValue::Undeletable
+                        | QScriptValue::SkipInEnumeration);
+    ztor.setProperty(QLatin1String("prototype"), *result,
+                     QScriptValue::Undeletable
+                     | QScriptValue::ReadOnly
+                     | QScriptValue::SkipInEnumeration);
+}
+
+bool Error::isEvalError(const QScriptValueImpl &value) const
+{
+    return value.instanceOf(evalErrorPrototype);
+}
+
+bool Error::isRangeError(const QScriptValueImpl &value) const
+{
+    return value.instanceOf(rangeErrorPrototype);
+}
+
+bool Error::isReferenceError(const QScriptValueImpl &value) const
+{
+    return value.instanceOf(referenceErrorPrototype);
+}
+
+bool Error::isSyntaxError(const QScriptValueImpl &value) const
+{
+    return value.instanceOf(syntaxErrorPrototype);
+}
+
+bool Error::isTypeError(const QScriptValueImpl &value) const
+{
+    return value.instanceOf(typeErrorPrototype);
+}
+
+bool Error::isURIError(const QScriptValueImpl &value) const
+{
+    return value.instanceOf(uriErrorPrototype);
+}
+
+QStringList Error::backtrace(const QScriptValueImpl &error)
+{
+    QStringList result;
+    QScriptValueImpl stack = error.property(QLatin1String("stack"));
+    int frameCount = stack.property(QLatin1String("length")).toInt32();
+    for (int i = 0; i < frameCount; ++i) {
+        QScriptValueImpl o = stack.property(i);
+        QScriptValueImpl frame = o.property(QLatin1String("frame"));
+        QString s;
+        QString functionName = o.property(QLatin1String("functionName")).toString();
+        if (functionName.isEmpty()) {
+            if (i == frameCount-1)
+                s += QLatin1String("<global>");
+            else
+                s += QLatin1String("<anonymous>");
+        } else {
+            s += functionName;
+        }
+        s += QLatin1String("(");
+        QScriptValueImpl arguments = frame.property(QLatin1String("arguments"));
+        if (arguments.isObject()) {
+            int argCount = arguments.property(QLatin1String("length")).toInt32();
+            for (int j = 0; j < argCount; ++j) {
+                if (j > 0)
+                    s += QLatin1String(",");
+                s += arguments.property(j).toString();
+            }
+        }
+        s += QLatin1String(")@") + o.property(QLatin1String("fileName")).toString()
+             + QLatin1String(":") + o.property(QLatin1String("lineNumber")).toString();
+        result.append(s);
+    }
+    return result;
+}
+
+QScriptValueImpl Error::method_toString(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl name = context->thisObject().property(QLatin1String("name"),
+                                                           QScriptValue::ResolvePrototype);
+    QScriptValueImpl message = context->thisObject().property(QLatin1String("message"),
+                                                              QScriptValue::ResolvePrototype);
+    QString result = QLatin1String("");
+    if (name.isValid())
+        result = name.toString();
+    if (message.isValid()) {
+        QString str = message.toString();
+        if (!str.isEmpty()) {
+            if (!result.isEmpty())
+                result += QLatin1String(": ");
+            result += str;
+        }
+    }
+    return (QScriptValueImpl(eng, result));
+}
+
+QScriptValueImpl Error::method_backtrace(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
+{
+    QScriptValueImpl self = context->thisObject();
+    return eng->arrayFromStringList(backtrace(self));
+}
+
+} } // namespace QSA::Ecma
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_SCRIPT