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/*
* Copyright (C) 2019-2021 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "RegExpGlobalData.h"
#include "JSCInlines.h"
namespace JSC {
template<typename Visitor>
void RegExpGlobalData::visitAggregateImpl(Visitor& visitor)
{
m_cachedResult.visitAggregate(visitor);
m_substringGlobalAtomCache.visitAggregate(visitor);
}
DEFINE_VISIT_AGGREGATE(RegExpGlobalData);
JSValue RegExpGlobalData::getBackref(JSGlobalObject* globalObject, unsigned i)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSArray* array = m_cachedResult.lastResult(globalObject, globalObject);
RETURN_IF_EXCEPTION(scope, { });
if (i < array->length()) {
JSValue result = JSValue(array).get(globalObject, i);
RETURN_IF_EXCEPTION(scope, { });
ASSERT(result.isString() || result.isUndefined());
if (!result.isUndefined())
return result;
}
return jsEmptyString(vm);
}
JSValue RegExpGlobalData::getLastParen(JSGlobalObject* globalObject)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSArray* array = m_cachedResult.lastResult(globalObject, globalObject);
RETURN_IF_EXCEPTION(scope, { });
unsigned length = array->length();
if (length > 1) {
JSValue result = JSValue(array).get(globalObject, length - 1);
RETURN_IF_EXCEPTION(scope, { });
ASSERT(result.isString() || result.isUndefined());
if (!result.isUndefined())
return result;
}
return jsEmptyString(vm);
}
JSValue RegExpGlobalData::getLeftContext(JSGlobalObject* globalObject)
{
return m_cachedResult.leftContext(globalObject, globalObject);
}
JSValue RegExpGlobalData::getRightContext(JSGlobalObject* globalObject)
{
return m_cachedResult.rightContext(globalObject, globalObject);
}
} // namespace JSC
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