blob: 527277573b5a6d373f9ac8245fa68bac0fe16fbb [file] [log] [blame]
/*
* Copyright (C) 2014-2018 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 "CallVariant.h"
#include "JSCInlines.h"
#include <wtf/ListDump.h>
namespace JSC {
bool CallVariant::finalize(VM& vm)
{
if (m_callee && !vm.heap.isMarked(m_callee))
return false;
return true;
}
bool CallVariant::merge(const CallVariant& other)
{
if (*this == other)
return true;
if (executable() == other.executable()) {
*this = despecifiedClosure();
return true;
}
return false;
}
void CallVariant::filter(VM& vm, JSValue value)
{
if (!*this)
return;
if (!isClosureCall()) {
if (nonExecutableCallee() != value)
*this = CallVariant();
return;
}
if (JSFunction* function = jsDynamicCast<JSFunction*>(vm, value)) {
if (function->executable() == executable())
*this = CallVariant(function);
else
*this = CallVariant();
return;
}
*this = CallVariant();
}
void CallVariant::dump(PrintStream& out) const
{
if (!*this) {
out.print("null");
return;
}
if (InternalFunction* internalFunction = this->internalFunction()) {
out.print("InternalFunction: ", JSValue(internalFunction));
return;
}
if (JSFunction* function = this->function()) {
out.print("(Function: ", JSValue(function), "; Executable: ", *executable(), ")");
return;
}
if (ExecutableBase* executable = this->executable()) {
out.print("(Executable: ", *executable, ")");
return;
}
out.print("Non-executable callee: ", *nonExecutableCallee());
}
CallVariantList variantListWithVariant(const CallVariantList& list, CallVariant variantToAdd)
{
ASSERT(variantToAdd);
CallVariantList result;
for (CallVariant variant : list) {
ASSERT(variant);
if (!!variantToAdd) {
if (variant == variantToAdd)
variantToAdd = CallVariant();
else if (variant.despecifiedClosure() == variantToAdd.despecifiedClosure()) {
variant = variant.despecifiedClosure();
variantToAdd = CallVariant();
}
}
result.append(variant);
}
if (!!variantToAdd)
result.append(variantToAdd);
if (ASSERT_ENABLED) {
for (unsigned i = 0; i < result.size(); ++i) {
for (unsigned j = i + 1; j < result.size(); ++j) {
if (result[i] != result[j])
continue;
dataLog("variantListWithVariant(", listDump(list), ", ", variantToAdd, ") failed: got duplicates in result: ", listDump(result), "\n");
RELEASE_ASSERT_NOT_REACHED();
}
}
}
return result;
}
CallVariantList despecifiedVariantList(const CallVariantList& list)
{
CallVariantList result;
for (CallVariant variant : list)
result = variantListWithVariant(result, variant.despecifiedClosure());
return result;
}
} // namespace JSC