Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 116 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/RegExp.h b/Source/JavaScriptCore/runtime/RegExp.h
new file mode 100644
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+++ b/Source/JavaScriptCore/runtime/RegExp.h
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+/*
+ *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
+ *  Copyright (C) 2009 Torch Mobile, Inc.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef RegExp_h
+#define RegExp_h
+
+#include "UString.h"
+#include "ExecutableAllocator.h"
+#include "Structure.h"
+#include "RegExpKey.h"
+#include "yarr/Yarr.h"
+#include <wtf/Forward.h>
+#include <wtf/RefCounted.h>
+
+namespace JSC {
+
+    struct RegExpRepresentation;
+    class JSGlobalData;
+
+    RegExpFlags regExpFlags(const UString&);
+
+    class RegExp : public JSCell {
+    public:
+        typedef JSCell Base;
+
+        static RegExp* create(JSGlobalData&, const UString& pattern, RegExpFlags);
+        static void destroy(JSCell*);
+
+        bool global() const { return m_flags & FlagGlobal; }
+        bool ignoreCase() const { return m_flags & FlagIgnoreCase; }
+        bool multiline() const { return m_flags & FlagMultiline; }
+
+        const UString& pattern() const { return m_patternString; }
+
+        bool isValid() const { return !m_constructionError && m_flags != InvalidFlags; }
+        const char* errorMessage() const { return m_constructionError; }
+
+        int match(JSGlobalData&, const UString&, int startOffset, Vector<int, 32>* ovector = 0);
+        unsigned numSubpatterns() const { return m_numSubpatterns; }
+
+        bool hasCode()
+        {
+            return m_representation;
+        }
+
+        void invalidateCode();
+        
+#if ENABLE(REGEXP_TRACING)
+        void printTraceData();
+#endif
+
+        static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue prototype)
+        {
+            return Structure::create(globalData, globalObject, prototype, TypeInfo(LeafType, 0), &s_info);
+        }
+        
+        static JS_EXPORTDATA const ClassInfo s_info;
+
+        RegExpKey key() { return RegExpKey(m_flags, m_patternString); }
+
+    protected:
+        void finishCreation(JSGlobalData&);
+
+    private:
+        friend class RegExpCache;
+        RegExp(JSGlobalData&, const UString&, RegExpFlags);
+
+        static RegExp* createWithoutCaching(JSGlobalData&, const UString&, RegExpFlags);
+
+        enum RegExpState {
+            ParseError,
+            JITCode,
+            ByteCode,
+            NotCompiled
+        } m_state;
+
+        void compile(JSGlobalData*, Yarr::YarrCharSize);
+        void compileIfNecessary(JSGlobalData&, Yarr::YarrCharSize);
+
+#if ENABLE(YARR_JIT_DEBUG)
+        void matchCompareWithInterpreter(const UString&, int startOffset, int* offsetVector, int jitResult);
+#endif
+
+        UString m_patternString;
+        RegExpFlags m_flags;
+        const char* m_constructionError;
+        unsigned m_numSubpatterns;
+#if ENABLE(REGEXP_TRACING)
+        unsigned m_rtMatchCallCount;
+        unsigned m_rtMatchFoundCount;
+#endif
+
+        OwnPtr<RegExpRepresentation> m_representation;
+    };
+
+} // namespace JSC
+
+#endif // RegExp_h