JavaScriptCore/runtime/RegExpObject.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JavaScriptCore/runtime/RegExpObject.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,176 @@
+/*
+ *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2003, 2007, 2008 Apple Inc. All Rights Reserved.
+ *
+ *  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
+ *
+ */
+
+#include "config.h"
+#include "RegExpObject.h"
+
+#include "Error.h"
+#include "ExceptionHelpers.h"
+#include "JSArray.h"
+#include "JSGlobalObject.h"
+#include "JSString.h"
+#include "Lookup.h"
+#include "RegExpConstructor.h"
+#include "RegExpPrototype.h"
+#include <wtf/PassOwnPtr.h>
+
+namespace JSC {
+
+static JSValue regExpObjectGlobal(ExecState*, JSValue, const Identifier&);
+static JSValue regExpObjectIgnoreCase(ExecState*, JSValue, const Identifier&);
+static JSValue regExpObjectMultiline(ExecState*, JSValue, const Identifier&);
+static JSValue regExpObjectSource(ExecState*, JSValue, const Identifier&);
+static JSValue regExpObjectLastIndex(ExecState*, JSValue, const Identifier&);
+static void setRegExpObjectLastIndex(ExecState*, JSObject*, JSValue);
+
+} // namespace JSC
+
+#include "RegExpObject.lut.h"
+
+namespace JSC {
+
+ASSERT_CLASS_FITS_IN_CELL(RegExpObject);
+
+const ClassInfo RegExpObject::info = { "RegExp", 0, 0, ExecState::regExpTable };
+
+/* Source for RegExpObject.lut.h
+@begin regExpTable
+    global        regExpObjectGlobal       DontDelete|ReadOnly|DontEnum
+    ignoreCase    regExpObjectIgnoreCase   DontDelete|ReadOnly|DontEnum
+    multiline     regExpObjectMultiline    DontDelete|ReadOnly|DontEnum
+    source        regExpObjectSource       DontDelete|ReadOnly|DontEnum
+    lastIndex     regExpObjectLastIndex    DontDelete|DontEnum
+@end
+*/
+
+RegExpObject::RegExpObject(JSGlobalObject* globalObject, NonNullPassRefPtr<Structure> structure, NonNullPassRefPtr<RegExp> regExp)
+    : JSObjectWithGlobalObject(globalObject, structure)
+    , d(adoptPtr(new RegExpObjectData(regExp, 0)))
+{
+}
+
+RegExpObject::~RegExpObject()
+{
+}
+
+bool RegExpObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
+{
+    return getStaticValueSlot<RegExpObject, JSObject>(exec, ExecState::regExpTable(exec), this, propertyName, slot);
+}
+
+bool RegExpObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+{
+    return getStaticValueDescriptor<RegExpObject, JSObject>(exec, ExecState::regExpTable(exec), this, propertyName, descriptor);
+}
+
+JSValue regExpObjectGlobal(ExecState*, JSValue slotBase, const Identifier&)
+{
+    return jsBoolean(asRegExpObject(slotBase)->regExp()->global());
+}
+
+JSValue regExpObjectIgnoreCase(ExecState*, JSValue slotBase, const Identifier&)
+{
+    return jsBoolean(asRegExpObject(slotBase)->regExp()->ignoreCase());
+}
+ 
+JSValue regExpObjectMultiline(ExecState*, JSValue slotBase, const Identifier&)
+{            
+    return jsBoolean(asRegExpObject(slotBase)->regExp()->multiline());
+}
+
+JSValue regExpObjectSource(ExecState* exec, JSValue slotBase, const Identifier&)
+{
+    return jsString(exec, asRegExpObject(slotBase)->regExp()->pattern());
+}
+
+JSValue regExpObjectLastIndex(ExecState* exec, JSValue slotBase, const Identifier&)
+{
+    return jsNumber(exec, asRegExpObject(slotBase)->lastIndex());
+}
+
+void RegExpObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
+{
+    lookupPut<RegExpObject, JSObject>(exec, propertyName, value, ExecState::regExpTable(exec), this, slot);
+}
+
+void setRegExpObjectLastIndex(ExecState* exec, JSObject* baseObject, JSValue value)
+{
+    asRegExpObject(baseObject)->setLastIndex(value.toInteger(exec));
+}
+
+JSValue RegExpObject::test(ExecState* exec)
+{
+    return jsBoolean(match(exec));
+}
+
+JSValue RegExpObject::exec(ExecState* exec)
+{
+    if (match(exec))
+        return exec->lexicalGlobalObject()->regExpConstructor()->arrayOfMatches(exec);
+    return jsNull();
+}
+
+static EncodedJSValue JSC_HOST_CALL callRegExpObject(ExecState* exec)
+{
+    return JSValue::encode(asRegExpObject(exec->callee())->exec(exec));
+}
+
+CallType RegExpObject::getCallData(CallData& callData)
+{
+    callData.native.function = callRegExpObject;
+    return CallTypeHost;
+}
+
+// Shared implementation used by test and exec.
+bool RegExpObject::match(ExecState* exec)
+{
+    RegExpConstructor* regExpConstructor = exec->lexicalGlobalObject()->regExpConstructor();
+
+    UString input = !exec->argumentCount() ? regExpConstructor->input() : exec->argument(0).toString(exec);
+    if (input.isNull()) {
+        throwError(exec, createError(exec, makeString("No input to ", toString(exec), ".")));
+        return false;
+    }
+
+    if (!regExp()->global()) {
+        int position;
+        int length;
+        regExpConstructor->performMatch(d->regExp.get(), input, 0, position, length);
+        return position >= 0;
+    }
+
+    if (d->lastIndex < 0 || d->lastIndex > input.size()) {
+        d->lastIndex = 0;
+        return false;
+    }
+
+    int position;
+    int length = 0;
+    regExpConstructor->performMatch(d->regExp.get(), input, static_cast<int>(d->lastIndex), position, length);
+    if (position < 0) {
+        d->lastIndex = 0;
+        return false;
+    }
+
+    d->lastIndex = position + length;
+    return true;
+}
+
+} // namespace JSC