Long live Qt for S60!

1 files changed, 176 insertions, 0 deletions

diff --git a/src/scripttools/debugging/qscriptxmlparser.cpp b/src/scripttools/debugging/qscriptxmlparser.cpp
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+++ b/src/scripttools/debugging/qscriptxmlparser.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtSCriptTools 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 "qscriptxmlparser_p.h"
+
+#include <QtCore/qstringlist.h>
+#include <QtCore/qxmlstream.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+static void tokenUntil(QXmlStreamReader &reader, QXmlStreamReader::TokenType target,
+                       QList<int> &lineNumbers)
+{
+    int level = 0;
+    while (!reader.atEnd()) {
+        QXmlStreamReader::TokenType t = reader.readNext();
+        if ((t == target) && (level == 0))
+            return;
+        if (t == QXmlStreamReader::StartElement) {
+            ++level;
+            QString line = reader.attributes().value(QLatin1String("line")).toString();
+            if (!line.isEmpty())
+                lineNumbers.append(line.toInt());
+        } else if (t == QXmlStreamReader::EndElement) {
+            --level;
+        }
+    }
+//    Q_ASSERT_X(false, "QScriptXmlParser", "premature end of file");
+}
+
+QScriptXmlParser::Result QScriptXmlParser::parse(const QString &xml)
+{
+    QMap<QString, int> functionsInfo;
+    QList<int> lineNumbers;
+    QXmlStreamReader reader(xml);
+    reader.readNext(); // StartDocument
+    reader.readNext(); // <program>
+    reader.readNext(); // <source-elements>
+    while (reader.readNext() == QXmlStreamReader::StartElement) {
+//        qDebug() << reader.name().toString();
+        int line = reader.attributes().value(QLatin1String("line")).toString().toInt();
+        lineNumbers.append(line);
+        if (reader.name() == QLatin1String("function-declaration")) {
+            // extract the line number, name and formal parameters
+            reader.readNext(); // <name>
+            reader.readNext(); // Characters
+            QString name = reader.text().toString();
+            reader.readNext(); // </name>
+            reader.readNext(); // <formal-parameter-list>
+            QStringList formalParameters;
+            while (reader.readNext() == QXmlStreamReader::StartElement) {
+                reader.readNext(); // Characters
+                formalParameters.append(reader.text().toString());
+                reader.readNext(); // </identifier>
+            }
+            reader.readNext(); // <function-body>
+            tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+
+            QString signature;
+            signature.append(name);
+            signature.append(QLatin1Char('('));
+            for (int i = 0; i < formalParameters.size(); ++i) {
+                if (i > 0)
+                    signature.append(QLatin1String(", "));
+                signature.append(formalParameters.at(i));
+            }
+            signature.append(QLatin1Char(')'));
+            functionsInfo.insert(signature, line);
+        } else if (reader.name() == QLatin1String("expression-statement")) {
+            reader.readNext();
+            if ((reader.name() == QLatin1String("binary-expression"))
+                && reader.attributes().value(QLatin1String("op")) == QLatin1String("=")) {
+                // try to match a statement of the form Foo.prototype.bar = function() { ... }
+                // this can be generalized...
+                QString first, second, third;
+                reader.readNext(); // LHS
+                if (reader.name() == QLatin1String("field-member-expression")) {
+                    reader.readNext();
+                    if (reader.name() == QLatin1String("field-member-expression")) {
+                        reader.readNext();
+                        if (reader.name() == QLatin1String("identifier")) {
+                            reader.readNext();
+                            first = reader.text().toString();
+                        }
+                        tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+                        reader.readNext();
+                        if (reader.name() == QLatin1String("identifier")) {
+                            reader.readNext();
+                            second = reader.text().toString();
+                        }
+                        tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+                    } else if (reader.name() == QLatin1String("identifier")) {
+                        reader.readNext();
+                        first = reader.text().toString();
+                    }
+                    tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+                    reader.readNext();
+                    if (reader.name() == QLatin1String("identifier")) {
+                        reader.readNext();
+                        if (second.isEmpty())
+                            second = reader.text().toString();
+                        else
+                            third = reader.text().toString();
+                    }
+                    tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+                }
+                tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+                reader.readNext(); // RHS
+                if (reader.name() == QLatin1String("function-expression")) {
+                    if (!first.isEmpty()) {
+                        QString signature = first;
+                        if (!second.isEmpty()) {
+                            signature.append(QLatin1Char('.'));
+                            signature.append(second);
+                            if (!third.isEmpty()) {
+                                signature.append(QLatin1Char('.'));
+                                signature.append(third);
+                            }
+                        }
+                        signature.append(QLatin1String("()"));
+                        functionsInfo.insert(signature, line);
+                    }
+                }
+                tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+            }
+            tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+        }
+        tokenUntil(reader, QXmlStreamReader::EndElement, lineNumbers);
+    }
+    reader.readNext(); // </source-elements>
+    reader.readNext(); // </program>
+    reader.readNext(); // EndDocument
+    Q_ASSERT(reader.atEnd());
+    return Result(functionsInfo, lineNumbers.toSet());
+}
+
+QT_END_NAMESPACE