1 files changed, 180 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4regexp.cpp b/src/qml/jsruntime/qv4regexp.cpp
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index 0000000000..ab01ce7650
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+++ b/src/qml/jsruntime/qv4regexp.cpp
@@ -0,0 +1,180 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qv4regexp_p.h"
+
+#include "qv4engine_p.h"
+
+using namespace QV4;
+
+RegExpCache::~RegExpCache()
+{
+    for (RegExpCache::Iterator it = begin(), e = end();
+         it != e; ++it)
+        it.value()->m_cache = 0;
+    clear();
+}
+
+DEFINE_MANAGED_VTABLE(RegExp);
+
+uint RegExp::match(const QString &string, int start, uint *matchOffsets)
+{
+    if (!isValid())
+        return JSC::Yarr::offsetNoMatch;
+
+    WTF::String s(string);
+
+#if ENABLE(YARR_JIT)
+    if (!m_jitCode.isFallBack() && m_jitCode.has16BitCode())
+        return m_jitCode.execute(s.characters16(), start, s.length(), (int*)matchOffsets).start;
+#endif
+
+    return JSC::Yarr::interpret(m_byteCode.get(), s.characters16(), string.length(), start, matchOffsets);
+}
+
+RegExp* RegExp::create(ExecutionEngine* engine, const QString& pattern, bool ignoreCase, bool multiline)
+{
+    RegExpCacheKey key(pattern, ignoreCase, multiline);
+
+    RegExpCache *cache = engine->regExpCache;
+    if (cache) {
+        if (RegExp *result = cache->value(key))
+            return result;
+    }
+
+    RegExp *result = new (engine->memoryManager) RegExp(engine, pattern, ignoreCase, multiline);
+
+    if (!cache)
+        cache = engine->regExpCache = new RegExpCache;
+
+    result->m_cache = cache;
+    cache->insert(key, result);
+
+    return result;
+}
+
+RegExp::RegExp(ExecutionEngine* engine, const QString &pattern, bool ignoreCase, bool multiline)
+    : Managed(engine->emptyClass)
+    , m_pattern(pattern)
+    , m_cache(0)
+    , m_subPatternCount(0)
+    , m_ignoreCase(ignoreCase)
+    , m_multiLine(multiline)
+{
+    vtbl = &static_vtbl;
+    type = Type_RegExpObject;
+
+    if (!engine)
+        return;
+    const char* error = 0;
+    JSC::Yarr::YarrPattern yarrPattern(WTF::String(pattern), ignoreCase, multiline, &error);
+    if (error)
+        return;
+    m_subPatternCount = yarrPattern.m_numSubpatterns;
+    m_byteCode = JSC::Yarr::byteCompile(yarrPattern, engine->bumperPointerAllocator);
+#if ENABLE(YARR_JIT)
+    if (!yarrPattern.m_containsBackreferences && engine->iselFactory->jitCompileRegexps()) {
+        JSC::JSGlobalData dummy(engine->regExpAllocator);
+        JSC::Yarr::jitCompile(yarrPattern, JSC::Yarr::Char16, &dummy, m_jitCode);
+    }
+#endif
+}
+
+RegExp::~RegExp()
+{
+    if (m_cache) {
+        RegExpCacheKey key(this);
+        m_cache->remove(key);
+    }
+    _data = 0;
+}
+
+void RegExp::destroy(Managed *that)
+{
+    static_cast<RegExp*>(that)->~RegExp();
+}
+
+void RegExp::markObjects(Managed *that)
+{
+}
+
+Value RegExp::get(Managed *m, String *name, bool *hasProperty)
+{
+    return Value::undefinedValue();
+}
+
+Value RegExp::getIndexed(Managed *m, uint index, bool *hasProperty)
+{
+    return Value::undefinedValue();
+}
+
+void RegExp::put(Managed *m, String *name, const Value &value)
+{
+}
+
+void RegExp::putIndexed(Managed *m, uint index, const Value &value)
+{
+}
+
+PropertyAttributes RegExp::query(const Managed *m, String *name)
+{
+    return Attr_Invalid;
+}
+
+PropertyAttributes RegExp::queryIndexed(const Managed *m, uint index)
+{
+    return Attr_Invalid;
+}
+
+bool RegExp::deleteProperty(Managed *, String *)
+{
+    return false;
+}
+
+bool RegExp::deleteIndexedProperty(Managed *m, uint index)
+{
+    return false;
+}
+
+Property *RegExp::advanceIterator(Managed *m, ObjectIterator *it, String **name, uint *index, PropertyAttributes *attributes)
+{
+    return 0;
+}