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* Copyright (C) 1999-2000 Harri Porten (
* Copyright (C) 2003, 2007-2008, 2012, 2016 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
* 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
#pragma once
#include "JSObject.h"
#include "RegExp.h"
#include "ThrowScope.h"
#include "TypeError.h"
namespace JSC {
class RegExpObject : public JSNonFinalObject {
typedef JSNonFinalObject Base;
static const unsigned StructureFlags = Base::StructureFlags | OverridesGetOwnPropertySlot | OverridesGetPropertyNames;
static RegExpObject* create(VM& vm, Structure* structure, RegExp* regExp)
RegExpObject* object = new (NotNull, allocateCell<RegExpObject>(vm.heap)) RegExpObject(vm, structure, regExp);
return object;
void setRegExp(VM& vm, RegExp* r) { m_regExp.set(vm, this, r); }
RegExp* regExp() const { return m_regExp.get(); }
bool setLastIndex(ExecState* exec, size_t lastIndex)
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (LIKELY(m_lastIndexIsWritable)) {
return true;
throwTypeError(exec, scope, ASCIILiteral(ReadonlyPropertyWriteError));
return false;
bool setLastIndex(ExecState* exec, JSValue lastIndex, bool shouldThrow)
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (LIKELY(m_lastIndexIsWritable)) {
m_lastIndex.set(vm, this, lastIndex);
return true;
return typeError(exec, scope, shouldThrow, ASCIILiteral(ReadonlyPropertyWriteError));
JSValue getLastIndex() const
return m_lastIndex.get();
bool test(ExecState* exec, JSGlobalObject* globalObject, JSString* string) { return !!match(exec, globalObject, string); }
bool testInline(ExecState* exec, JSGlobalObject* globalObject, JSString* string) { return !!matchInline(exec, globalObject, string); }
JSValue exec(ExecState*, JSGlobalObject*, JSString*);
JSValue execInline(ExecState*, JSGlobalObject*, JSString*);
MatchResult match(ExecState*, JSGlobalObject*, JSString*);
JSValue matchGlobal(ExecState*, JSGlobalObject*, JSString*);
static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
static bool put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
return Structure::create(vm, globalObject, prototype, TypeInfo(RegExpObjectType, StructureFlags), info());
static ptrdiff_t offsetOfLastIndex()
return OBJECT_OFFSETOF(RegExpObject, m_lastIndex);
static ptrdiff_t offsetOfLastIndexIsWritable()
return OBJECT_OFFSETOF(RegExpObject, m_lastIndexIsWritable);
static unsigned advanceStringUnicode(String, unsigned length, unsigned currentIndex);
JS_EXPORT_PRIVATE RegExpObject(VM&, Structure*, RegExp*);
JS_EXPORT_PRIVATE void finishCreation(VM&);
static void visitChildren(JSCell*, SlotVisitor&);
JS_EXPORT_PRIVATE static bool deleteProperty(JSCell*, ExecState*, PropertyName);
JS_EXPORT_PRIVATE static void getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static void getPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static void getGenericPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
MatchResult matchInline(ExecState*, JSGlobalObject*, JSString*);
WriteBarrier<RegExp> m_regExp;
WriteBarrier<Unknown> m_lastIndex;
bool m_lastIndexIsWritable;
RegExpObject* asRegExpObject(JSValue);
inline RegExpObject* asRegExpObject(JSValue value)
ASSERT(asObject(value)->inherits(*value.getObject()->vm(), RegExpObject::info()));
return static_cast<RegExpObject*>(asObject(value));
} // namespace JSC