Initial work on the qfx front-end.

1 files changed, 157 insertions, 0 deletions

diff --git a/src/declarative/qml/parser/javascriptengine_p.cpp b/src/declarative/qml/parser/javascriptengine_p.cpp
new file mode 100644
index 0000000..ca15b75
--- /dev/null
+++ b/src/declarative/qml/parser/javascriptengine_p.cpp
@@ -0,0 +1,157 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+**************************************************************************/
+
+#include "javascriptengine_p.h"
+#include "javascriptnodepool_p.h"
+#include "javascriptvalue.h"
+#include <qnumeric.h>
+#include <QHash>
+
+QT_BEGIN_NAMESPACE
+
+namespace JavaScript {
+
+QString numberToString(qjsreal value)
+{ return QString::number(value); }
+
+int Ecma::RegExp::flagFromChar(const QChar &ch)
+{
+    static QHash<QChar, int> flagsHash;
+    if (flagsHash.isEmpty()) {
+        flagsHash[QLatin1Char('g')] = Global;
+        flagsHash[QLatin1Char('i')] = IgnoreCase;
+        flagsHash[QLatin1Char('m')] = Multiline;
+    }
+    QHash<QChar, int>::const_iterator it;
+    it = flagsHash.constFind(ch);
+    if (it == flagsHash.constEnd())
+        return 0;
+    return it.value();
+}
+
+QString Ecma::RegExp::flagsToString(int flags)
+{
+    QString result;
+    if (flags & Global)
+        result += QLatin1Char('g');
+    if (flags & IgnoreCase)
+        result += QLatin1Char('i');
+    if (flags & Multiline)
+        result += QLatin1Char('m');
+    return result;
+}
+
+NodePool::NodePool(const QString &fileName, JavaScriptEnginePrivate *engine)
+    : m_fileName(fileName), m_engine(engine)
+{
+}
+
+NodePool::~NodePool()
+{
+}
+
+Code *NodePool::createCompiledCode(AST::Node *, CompilationUnit &)
+{
+    Q_ASSERT(0);
+    return 0;
+}
+
+static int toDigit(char c)
+{
+    if ((c >= '0') && (c <= '9'))
+        return c - '0';
+    else if ((c >= 'a') && (c <= 'z'))
+        return 10 + c - 'a';
+    else if ((c >= 'A') && (c <= 'Z'))
+        return 10 + c - 'A';
+    return -1;
+}
+
+qjsreal integerFromString(const char *buf, int size, int radix)
+{
+    if (size == 0)
+        return qSNaN();
+
+    qjsreal sign = 1.0;
+    int i = 0;
+    if (buf[0] == '+') {
+        ++i;
+    } else if (buf[0] == '-') {
+        sign = -1.0;
+        ++i;
+    }
+
+    if (((size-i) >= 2) && (buf[i] == '0')) {
+        if (((buf[i+1] == 'x') || (buf[i+1] == 'X'))
+            && (radix < 34)) {
+            if ((radix != 0) && (radix != 16))
+                return 0;
+            radix = 16;
+            i += 2;
+        } else {
+            if (radix == 0) {
+                radix = 8;
+                ++i;
+            }
+        }
+    } else if (radix == 0) {
+        radix = 10;
+    }
+
+    int j = i;
+    for ( ; i < size; ++i) {
+        int d = toDigit(buf[i]);
+        if ((d == -1) || (d >= radix))
+            break;
+    }
+    qjsreal result;
+    if (j == i) {
+        if (!qstrcmp(buf, "Infinity"))
+            result = qInf();
+        else
+            result = qSNaN();
+    } else {
+        result = 0;
+        qjsreal multiplier = 1;
+        for (--i ; i >= j; --i, multiplier *= radix)
+            result += toDigit(buf[i]) * multiplier;
+    }
+    result *= sign;
+    return result;
+}
+
+qjsreal integerFromString(const QString &str, int radix)
+{
+    QByteArray ba = str.trimmed().toUtf8();
+    return integerFromString(ba.constData(), ba.size(), radix);
+}
+
+} // end of namespace JavaScript
+
+QT_END_NAMESPACE