bool UnaryOpExpression::preCompute(CVarRef value, Variant &result) {
bool ret = true;
try {
g_context->setThrowAllErrors(true);
switch(m_op) {
case '!':
result = (!toBoolean(value)); break;
case '+':
cellSet(cellAdd(make_tv<KindOfInt64>(0), *value.asCell()),
*result.asCell());
break;
case '-':
cellSet(cellSub(make_tv<KindOfInt64>(0), *value.asCell()),
*result.asCell());
break;
case '~':
tvSet(*value.asCell(), *result.asTypedValue());
cellBitNot(*result.asCell());
break;
case '@':
result = value;
break;
case T_INT_CAST:
result = value.toInt64();
break;
case T_DOUBLE_CAST:
result = toDouble(value);
break;
case T_STRING_CAST:
result = toString(value);
break;
case T_BOOL_CAST:
result = toBoolean(value);
break;
case T_EMPTY:
result = !toBoolean(value);
break;
case T_ISSET:
result = is_not_null(value);
break;
case T_INC:
case T_DEC:
assert(false);
default:
ret = false;
break;
}
} catch (...) {
ret = false;
}
g_context->setThrowAllErrors(false);
return ret;
}
TEST(APC, SetOverwrite) {
auto store = new_store();
store->set(s_key, Variant(s_value1), 1500);
Variant got;
EXPECT_EQ(store->get(s_key, got), true);
EXPECT_TRUE(cellSame(*got.asCell(),
make_tv<KindOfStaticString>(s_value1.get())));
store->set(s_key, Variant(s_value2), 1500);
EXPECT_EQ(store->get(s_key, got), true);
EXPECT_TRUE(cellSame(*got.asCell(),
make_tv<KindOfStaticString>(s_value2.get())));
}
Variant f_max(int _argc, const Variant& value,
const Variant& second /* = null_variant */,
const Array& _argv /* = null_array */) {
if (_argc == 1) {
const auto& cell_value = *value.asCell();
if (UNLIKELY(!isContainer(cell_value))) {
return value;
}
ArrayIter iter(cell_value);
if (!iter) {
return uninit_null();
}
Variant ret = iter.secondRefPlus();
++iter;
for (; iter; ++iter) {
Variant currVal = iter.secondRefPlus();
if (more(currVal, ret)) {
ret = currVal;
}
}
return ret;
} else if (_argc == 2) {
return more(second, value) ? second : value;
}
Variant ret = more(second, value) ? second : value;
for (ArrayIter iter(_argv); iter; ++iter) {
Variant currVal = iter.secondRef();
if (more(currVal, ret)) {
ret = currVal;
}
}
return ret;
}
bool objOffsetIsset(TypedValue& tvRef, ObjectData* base, const Variant& offset,
bool validate /* = true */) {
auto exists = objOffsetExists(base, offset);
// Unless we called ArrayObject::offsetExists, there's nothing more to do
if (exists != OffsetExistsResult::IssetIfNonNull) {
return (int)exists;
}
// For ArrayObject::offsetExists, we need to check the value at `offset`.
// If it's null, then we return false.
TypedValue tvResult;
tvWriteUninit(&tvResult);
// We can't call the offsetGet method on `base` because users aren't
// expecting offsetGet to be called for `isset(...)` expressions, so call
// the method on the base ArrayObject class.
auto const method =
SystemLib::s_ArrayObjectClass->lookupMethod(s_offsetGet.get());
assert(method != nullptr);
g_context->invokeFuncFew(&tvResult, method, base, nullptr, 1,
offset.asCell());
auto const result = !IS_NULL_TYPE(tvResult.m_type);
tvRefcountedDecRef(&tvResult);
return result;
}
bool same(const Variant& v1, int64_t v2) {
auto const cell = v1.asCell();
if (isIntType(cell->m_type)) {
return v2 == cell->m_data.num;
}
return false;
}
bool HHVM_FUNCTION(define, const String& name, const Variant& value,
bool case_insensitive /* = false */) {
if (case_insensitive) {
raise_warning(Strings::CONSTANTS_CASE_SENSITIVE);
}
return Unit::defCns(name.get(), value.asCell());
}
void StringBuffer::append(const Variant& v) {
auto const cell = v.asCell();
switch (cell->m_type) {
case KindOfInt64:
append(cell->m_data.num);
break;
case KindOfPersistentString:
case KindOfString:
append(cell->m_data.pstr);
break;
case KindOfUninit:
case KindOfNull:
case KindOfBoolean:
case KindOfDouble:
case KindOfPersistentVec:
case KindOfVec:
case KindOfPersistentDict:
case KindOfDict:
case KindOfPersistentKeyset:
case KindOfKeyset:
case KindOfPersistentArray:
case KindOfArray:
case KindOfObject:
case KindOfResource:
case KindOfRef:
append(v.toString());
}
}
void objOffsetUnset(ObjectData* base, const Variant& offset) {
objArrayAccess(base);
assert(!base->isCollection());
const Func* method = base->methodNamed(s_offsetUnset.get());
assert(method != nullptr);
TypedValue tv;
tvWriteUninit(&tv);
g_context->invokeFuncFew(&tv, method, base, nullptr, 1, offset.asCell());
tvRefcountedDecRef(&tv);
}
AutoloadHandler::Result AutoloadHandler::loadFromMap(const String& name,
const String& kind,
bool toLower,
const T &checkExists) {
assert(!m_map.isNull());
while (true) {
const Variant& type_map = m_map.get()->get(kind);
auto const typeMapCell = type_map.asCell();
if (typeMapCell->m_type != KindOfArray) return Failure;
String canonicalName = toLower ? f_strtolower(name) : name;
const Variant& file = typeMapCell->m_data.parr->get(canonicalName);
bool ok = false;
if (file.isString()) {
String fName = file.toCStrRef().get();
if (fName.get()->data()[0] != '/') {
if (!m_map_root.empty()) {
fName = m_map_root + fName;
}
}
try {
JIT::VMRegAnchor _;
bool initial;
auto const ec = g_context.getNoCheck();
Unit* u = ec->evalInclude(fName.get(), nullptr, &initial);
if (u) {
if (initial) {
TypedValue retval;
ec->invokeFunc(&retval, u->getMain(), init_null_variant,
nullptr, nullptr, nullptr, nullptr,
ExecutionContext::InvokePseudoMain);
tvRefcountedDecRef(&retval);
}
ok = true;
}
} catch (...) {}
}
if (ok && checkExists(name)) {
return Success;
}
const Variant& func = m_map.get()->get(s_failure);
if (func.isNull()) return Failure;
// can throw, otherwise
// - true means the map was updated. try again
// - false means we should stop applying autoloaders (only affects classes)
// - anything else means keep going
Variant action = vm_call_user_func(func, make_packed_array(kind, name));
auto const actionCell = action.asCell();
if (actionCell->m_type == KindOfBoolean) {
if (actionCell->m_data.num) continue;
return StopAutoloading;
}
return ContinueAutoloading;
}
}
void c_ConditionWaitHandle::t_succeed(const Variant& result) {
if (isFinished()) {
failAlreadyFinished();
}
assert(getState() == STATE_BLOCKED);
auto parentChain = getParentChain();
setState(STATE_SUCCEEDED);
cellDup(*result.asCell(), m_resultOrException);
parentChain.unblock();
}
TEST(APC, Basic) {
auto store = new_store();
EXPECT_EQ(store->add(s_key, Variant(s_value1), 1500), true);
EXPECT_EQ(store->exists(s_key), true);
Variant got;
EXPECT_EQ(store->get(s_key, got), true);
EXPECT_TRUE(cellSame(*got.asCell(),
make_tv<KindOfStaticString>(s_value1.get())));
EXPECT_EQ(store->erase(s_key), true);
EXPECT_EQ(store->get(s_key, got), false);
}
bool EventHook::RunInterceptHandler(ActRec* ar) {
const Func* func = ar->m_func;
if (LIKELY(func->maybeIntercepted() == 0)) return true;
// Intercept only original generator / async function calls, not resumption.
if (ar->inGenerator()) return true;
Variant *h = get_intercept_handler(func->fullNameRef(),
&func->maybeIntercepted());
if (!h) return true;
JIT::VMRegAnchor _;
PC savePc = g_context->m_pc;
Variant doneFlag = true;
Variant called_on;
if (ar->hasThis()) {
called_on = Variant(ar->getThis());
} else if (ar->hasClass()) {
// For static methods, give handler the name of called class
called_on = Variant(const_cast<StringData*>(ar->getClass()->name()));
}
Variant intArgs =
PackedArrayInit(5)
.append(ar->m_func->fullNameRef())
.append(called_on)
.append(get_frame_args_with_ref(ar))
.append(h->asCArrRef()[1])
.appendRef(doneFlag)
.toArray();
Variant ret = vm_call_user_func(h->asCArrRef()[0], intArgs);
if (doneFlag.toBoolean()) {
Offset pcOff;
ActRec* outer = g_context->getPrevVMState(ar, &pcOff);
frame_free_locals_inl_no_hook<true>(ar, ar->m_func->numLocals());
Stack& stack = g_context->getStack();
stack.top() = (Cell*)(ar + 1);
cellDup(*ret.asCell(), *stack.allocTV());
g_context->m_fp = outer;
g_context->m_pc = outer ? outer->m_func->unit()->at(pcOff) : nullptr;
return false;
}
g_context->m_fp = ar;
g_context->m_pc = savePc;
return true;
}
void HHVM_METHOD(ConditionWaitHandle, succeed, const Variant& result) {
auto obj = wait_handle<c_ConditionWaitHandle>(this_);
if (obj->isFinished()) {
failAlreadyFinished();
}
assert(obj->getState() == c_ConditionWaitHandle::STATE_BLOCKED);
auto parentChain = obj->getParentChain();
obj->setState(c_ConditionWaitHandle::STATE_SUCCEEDED);
cellDup(*result.asCell(), obj->m_resultOrException);
parentChain.unblock();
}
void SourceRootInfo::setServerVariables(Variant &server) const {
if (!sandboxOn()) return;
for (map<string, string>::const_iterator it =
RuntimeOption::SandboxServerVariables.begin();
it != RuntimeOption::SandboxServerVariables.end(); ++it) {
server.set(String(it->first),
String(parseSandboxServerVariable(it->second)));
}
if (!m_serverVars.empty()) {
cellAddEq(*server.asCell(), make_tv<KindOfArray>(m_serverVars.get()));
}
}
void throw_invalid_object_type(const Variant& p) {
auto tv = p.asCell();
switch (tv->m_type) {
case KindOfNull:
case KindOfUninit:
throw_null_pointer_exception();
case KindOfObject:
throw_invalid_object_type(tv->m_data.pobj->getClassName().c_str());
case KindOfResource:
throw_invalid_object_type(tv->m_data.pres->o_getClassName().c_str());
default:
throw_invalid_object_type(tname(tv->m_type).c_str());
}
}
void objOffsetSet(ObjectData* base, const Variant& offset, TypedValue* val,
bool validate /* = true */) {
if (validate) {
objArrayAccess(base);
}
assert(!base->isCollection());
const Func* method = base->methodNamed(s_offsetSet.get());
assert(method != nullptr);
TypedValue tvResult;
tvWriteUninit(&tvResult);
TypedValue args[2] = { *offset.asCell(), *tvToCell(val) };
g_context->invokeFuncFew(&tvResult, method, base, nullptr, 2, args);
tvRefcountedDecRef(&tvResult);
}
void StringBuffer::append(const Variant& v) {
auto const cell = v.asCell();
switch (cell->m_type) {
case KindOfStaticString:
case KindOfString:
append(cell->m_data.pstr);
break;
case KindOfInt64:
append(cell->m_data.num);
break;
default:
append(v.toString());
}
}
static OffsetExistsResult objOffsetExists(ObjectData* base,
const Variant& offset) {
objArrayAccess(base);
TypedValue tvResult;
tvWriteUninit(&tvResult);
assert(!base->isCollection());
const Func* method = base->methodNamed(s_offsetExists.get());
assert(method != nullptr);
g_context->invokeFuncFew(&tvResult, method, base, nullptr, 1,
offset.asCell());
tvCastToBooleanInPlace(&tvResult);
if (!tvResult.m_data.num) return OffsetExistsResult::DoesNotExist;
return method->cls() == SystemLib::s_ArrayObjectClass ?
OffsetExistsResult::IssetIfNonNull : OffsetExistsResult::DefinitelyExists;
}
bool EventHook::RunInterceptHandler(ActRec* ar) {
const Func* func = ar->m_func;
if (LIKELY(func->maybeIntercepted() == 0)) return true;
Variant *h = get_intercept_handler(func->fullNameRef(),
&func->maybeIntercepted());
if (!h) return true;
Transl::VMRegAnchor _;
PC savePc = g_vmContext->m_pc;
Variant doneFlag = true;
Variant called_on;
if (ar->hasThis()) {
called_on = Variant(ar->getThis());
} else if (ar->hasClass()) {
// For static methods, give handler the name of called class
called_on = Variant(const_cast<StringData*>(ar->getClass()->name()));
}
Array intArgs =
CREATE_VECTOR5(ar->m_func->fullNameRef(),
called_on,
get_frame_args_with_ref(ar),
h->asCArrRef()[1],
ref(doneFlag));
Variant ret = vm_call_user_func(h->asCArrRef()[0], intArgs);
if (doneFlag.toBoolean()) {
Offset pcOff;
ActRec* outer = g_vmContext->getPrevVMState(ar, &pcOff);
frame_free_locals_inl_no_hook<true>(ar, ar->m_func->numLocals());
Stack& stack = g_vmContext->getStack();
stack.top() = (Cell*)(ar + 1);
cellDup(*ret.asCell(), *stack.allocTV());
g_vmContext->m_fp = outer;
g_vmContext->m_pc = outer ? outer->m_func->unit()->at(pcOff) : nullptr;
return false;
}
g_vmContext->m_fp = ar;
g_vmContext->m_pc = savePc;
return true;
}
bool UnaryOpExpression::preCompute(const Variant& value, Variant &result) {
bool ret = true;
try {
ThrowAllErrorsSetter taes;
auto add = RuntimeOption::IntsOverflowToInts ? cellAdd : cellAddO;
auto sub = RuntimeOption::IntsOverflowToInts ? cellSub : cellSubO;
switch(m_op) {
case '!':
result = (!toBoolean(value)); break;
case '+':
cellSet(add(make_tv<KindOfInt64>(0), *value.asCell()),
*result.asCell());
break;
case '-':
cellSet(sub(make_tv<KindOfInt64>(0), *value.asCell()),
*result.asCell());
break;
case '~':
tvSet(*value.asCell(), *result.asTypedValue());
cellBitNot(*result.asCell());
break;
case '@':
result = value;
break;
case T_INT_CAST:
result = value.toInt64();
break;
case T_DOUBLE_CAST:
result = toDouble(value);
break;
case T_STRING_CAST:
result = toString(value);
break;
case T_BOOL_CAST:
result = toBoolean(value);
break;
case T_EMPTY:
result = !toBoolean(value);
break;
case T_ISSET:
result = is_not_null(value);
break;
case T_INC:
case T_DEC:
assert(false);
default:
ret = false;
break;
}
} catch (...) {
ret = false;
}
return ret;
}
TEST(APC, BasicPrimeStuff) {
auto store = new_primed_store();
Variant val;
EXPECT_TRUE(store->get("int_2", val));
EXPECT_TRUE(cellSame(*val.asCell(), make_tv<KindOfInt64>(2)));
bool found = false;
EXPECT_EQ(store->inc("int_3", 1, found), 4);
EXPECT_TRUE(found);
EXPECT_FALSE(store->get("int_200", val));
EXPECT_EQ(store->cas("obj_1", 1, 2), true); // stdclass converts to 1
EXPECT_EQ(store->cas("obj_2", 4, 5), false);
EXPECT_EQ(store->cas("int_4", 4, 5), true);
EXPECT_EQ(store->cas("int_5", 4, 5), false);
}
bool contains(ObjectData* obj, const Variant& offset) {
auto* key = offset.asCell();
switch (obj->collectionType()) {
case CollectionType::Vector:
case CollectionType::ImmVector:
return BaseVector::OffsetContains(obj, key);
case CollectionType::Map:
case CollectionType::ImmMap:
return BaseMap::OffsetContains(obj, key);
case CollectionType::Set:
case CollectionType::ImmSet:
return BaseSet::OffsetContains(obj, key);
case CollectionType::Pair:
return c_Pair::OffsetContains(obj, key);
}
not_reached();
}
void HHVM_FUNCTION(set_frame_metadata, const Variant& metadata) {
VMRegAnchor _;
auto fp = vmfp();
if (fp && fp->skipFrame()) fp = g_context->getPrevVMState(fp);
if (UNLIKELY(!fp)) return;
if (LIKELY(!(fp->func()->attrs() & AttrMayUseVV)) ||
LIKELY(!fp->hasVarEnv())) {
auto const local = fp->func()->lookupVarId(s_86metadata.get());
if (LIKELY(local != kInvalidId)) {
cellSet(*metadata.asCell(), *tvAssertCell(frame_local(fp, local)));
} else {
SystemLib::throwInvalidArgumentExceptionObject(
"Unsupported dynamic call of set_frame_metadata()");
}
} else {
fp->getVarEnv()->set(s_86metadata.get(), metadata.asTypedValue());
}
}
void c_ConditionWaitHandle::t_fail(const Variant& exception) {
auto const cell = exception.asCell();
if (UNLIKELY(
cell->m_type != KindOfObject ||
!cell->m_data.pobj->instanceof(SystemLib::s_ExceptionClass)
)) {
SystemLib::throwInvalidArgumentExceptionObject(
"Expected exception to be an instance of Exception");
}
if (isFinished()) {
failAlreadyFinished();
}
assert(getState() == STATE_BLOCKED);
auto parentChain = getParentChain();
setState(STATE_FAILED);
cellDup(make_tv<KindOfObject>(cell->m_data.pobj), m_resultOrException);
parentChain.unblock();
}
Object c_ConditionWaitHandle::ti_create(const Variant& child) {
// Child not a WaitHandle?
auto const child_wh = c_WaitHandle::fromCell(child.asCell());
if (UNLIKELY(!child_wh)) {
SystemLib::throwInvalidArgumentExceptionObject(
"Expected child to be an instance of WaitHandle");
}
// Child finished before notification?
if (UNLIKELY(child_wh->isFinished())) {
throwNotNotifiedException();
}
assert(child_wh->instanceof(c_WaitableWaitHandle::classof()));
auto const child_wwh = static_cast<c_WaitableWaitHandle*>(child_wh);
auto wh = req::make<c_ConditionWaitHandle>();
wh->initialize(child_wwh);
return Object(std::move(wh));
}
void StringBuffer::append(const Variant& v) {
auto const cell = v.asCell();
switch (cell->m_type) {
case KindOfInt64:
append(cell->m_data.num);
break;
case KindOfStaticString:
case KindOfString:
append(cell->m_data.pstr);
break;
case KindOfUninit:
case KindOfNull:
case KindOfBoolean:
case KindOfDouble:
case KindOfArray:
case KindOfObject:
case KindOfResource:
case KindOfRef:
case KindOfClass:
append(v.toString());
}
}
ALWAYS_INLINE
typename std::enable_if<
std::is_base_of<BaseMap, TMap>::value, Object>::type
BaseMap::FromItems(const Class*, const Variant& iterable) {
if (iterable.isNull()) return Object{req::make<TMap>()};
VMRegGuard _;
size_t sz;
ArrayIter iter = getArrayIterHelper(iterable, sz);
auto target = req::make<TMap>();
target->reserve(sz);
for (; iter; ++iter) {
Variant v = iter.second();
TypedValue* tv = v.asCell();
if (UNLIKELY(tv->m_type != KindOfObject ||
tv->m_data.pobj->getVMClass() != c_Pair::classof())) {
SystemLib::throwInvalidArgumentExceptionObject(
"Parameter must be an instance of Iterable<Pair>");
}
auto pair = static_cast<c_Pair*>(tv->m_data.pobj);
target->setRaw(&pair->elm0, &pair->elm1);
}
return Object{std::move(target)};
}
bool EventHook::RunInterceptHandler(ActRec* ar) {
const Func* func = ar->func();
if (LIKELY(func->maybeIntercepted() == 0)) return true;
// Intercept only original generator / async function calls, not resumption.
if (ar->resumed()) return true;
Variant* h = get_intercept_handler(func->fullNameStr(),
&func->maybeIntercepted());
if (!h) return true;
/*
* In production mode, only functions that we have assumed can be
* intercepted during static analysis should actually be
* intercepted.
*/
if (RuntimeOption::RepoAuthoritative &&
!RuntimeOption::EvalJitEnableRenameFunction) {
if (!(func->attrs() & AttrInterceptable)) {
raise_error("fb_intercept was used on a non-interceptable function (%s) "
"in RepoAuthoritative mode", func->fullName()->data());
}
}
VMRegAnchor _;
PC savePc = vmpc();
Variant doneFlag = true;
Variant called_on;
if (ar->hasThis()) {
called_on = Variant(ar->getThis());
} else if (ar->hasClass()) {
// For static methods, give handler the name of called class
called_on = Variant(const_cast<StringData*>(ar->getClass()->name()));
}
Variant intArgs =
PackedArrayInit(5)
.append(VarNR(ar->func()->fullName()))
.append(called_on)
.append(get_frame_args_with_ref(ar))
.append(h->asCArrRef()[1])
.appendRef(doneFlag)
.toArray();
Variant ret = vm_call_user_func(h->asCArrRef()[0], intArgs);
if (doneFlag.toBoolean()) {
Offset pcOff;
ActRec* outer = g_context->getPrevVMState(ar, &pcOff);
frame_free_locals_inl_no_hook<true>(ar, ar->func()->numLocals());
Stack& stack = vmStack();
stack.top() = (Cell*)(ar + 1);
cellDup(*ret.asCell(), *stack.allocTV());
vmfp() = outer;
vmpc() = outer ? outer->func()->unit()->at(pcOff) : nullptr;
return false;
}
vmfp() = ar;
vmpc() = savePc;
return true;
}
// foldConst() is callable from the parse phase as well as the analysis phase.
// We take advantage of this during the parse phase to reduce very simple
// expressions down to a single scalar and keep the parse tree smaller,
// especially in cases of long chains of binary operators. However, we limit
// the effectivness of this during parse to ensure that we eliminate only
// very simple scalars that don't require analysis in later phases. For now,
// that's just simply scalar values.
ExpressionPtr BinaryOpExpression::foldConst(AnalysisResultConstPtr ar) {
ExpressionPtr optExp;
Variant v1;
Variant v2;
if (!m_exp2->getScalarValue(v2)) {
if ((ar->getPhase() != AnalysisResult::ParseAllFiles) &&
m_exp1->isScalar() && m_exp1->getScalarValue(v1)) {
switch (m_op) {
case T_IS_IDENTICAL:
case T_IS_NOT_IDENTICAL:
if (v1.isNull()) {
return makeIsNull(ar, getLocation(), m_exp2,
m_op == T_IS_NOT_IDENTICAL);
}
break;
case T_LOGICAL_AND:
case T_BOOLEAN_AND:
case T_LOGICAL_OR:
case T_BOOLEAN_OR: {
ExpressionPtr rep =
v1.toBoolean() == (m_op == T_LOGICAL_AND ||
m_op == T_BOOLEAN_AND) ? m_exp2 : m_exp1;
rep = ExpressionPtr(
new UnaryOpExpression(
getScope(), getLocation(),
rep, T_BOOL_CAST, true));
rep->setActualType(Type::Boolean);
return replaceValue(rep);
}
case '+':
case '.':
case '*':
case '&':
case '|':
case '^':
if (m_exp2->is(KindOfBinaryOpExpression)) {
BinaryOpExpressionPtr binOpExp =
dynamic_pointer_cast<BinaryOpExpression>(m_exp2);
if (binOpExp->m_op == m_op && binOpExp->m_exp1->isScalar()) {
ExpressionPtr aExp = m_exp1;
ExpressionPtr bExp = binOpExp->m_exp1;
ExpressionPtr cExp = binOpExp->m_exp2;
if (aExp->isArray() || bExp->isArray() || cExp->isArray()) {
break;
}
m_exp1 = binOpExp = Clone(binOpExp);
m_exp2 = cExp;
binOpExp->m_exp1 = aExp;
binOpExp->m_exp2 = bExp;
if (ExpressionPtr optExp = binOpExp->foldConst(ar)) {
m_exp1 = optExp;
}
return static_pointer_cast<Expression>(shared_from_this());
}
}
break;
default:
break;
}
}
return ExpressionPtr();
}
if (m_exp1->isScalar()) {
if (!m_exp1->getScalarValue(v1)) return ExpressionPtr();
try {
ScalarExpressionPtr scalar1 =
dynamic_pointer_cast<ScalarExpression>(m_exp1);
ScalarExpressionPtr scalar2 =
dynamic_pointer_cast<ScalarExpression>(m_exp2);
// Some data, like the values of __CLASS__ and friends, are not available
// while we're still in the initial parse phase.
if (ar->getPhase() == AnalysisResult::ParseAllFiles) {
if ((scalar1 && scalar1->needsTranslation()) ||
(scalar2 && scalar2->needsTranslation())) {
return ExpressionPtr();
}
}
if (!Option::WholeProgram || !Option::ParseTimeOpts) {
// In the VM, don't optimize __CLASS__ if within a trait, since
// __CLASS__ is not resolved yet.
ClassScopeRawPtr clsScope = getOriginalClass();
if (clsScope && clsScope->isTrait()) {
if ((scalar1 && scalar1->getType() == T_CLASS_C) ||
(scalar2 && scalar2->getType() == T_CLASS_C)) {
return ExpressionPtr();
}
}
}
Variant result;
switch (m_op) {
case T_LOGICAL_XOR:
result = static_cast<bool>(v1.toBoolean() ^ v2.toBoolean());
break;
case '|':
*result.asCell() = cellBitOr(*v1.asCell(), *v2.asCell());
break;
case '&':
*result.asCell() = cellBitAnd(*v1.asCell(), *v2.asCell());
break;
case '^':
*result.asCell() = cellBitXor(*v1.asCell(), *v2.asCell());
break;
case '.':
if (v1.isArray() || v2.isArray()) {
return ExpressionPtr();
}
result = concat(v1.toString(), v2.toString());
break;
case T_IS_IDENTICAL:
result = same(v1, v2);
break;
case T_IS_NOT_IDENTICAL:
result = !same(v1, v2);
break;
case T_IS_EQUAL:
result = equal(v1, v2);
break;
case T_IS_NOT_EQUAL:
result = !equal(v1, v2);
break;
case '<':
result = less(v1, v2);
break;
case T_IS_SMALLER_OR_EQUAL:
result = cellLessOrEqual(*v1.asCell(), *v2.asCell());
break;
case '>':
result = more(v1, v2);
break;
case T_IS_GREATER_OR_EQUAL:
result = cellGreaterOrEqual(*v1.asCell(), *v2.asCell());
break;
case '+':
*result.asCell() = cellAdd(*v1.asCell(), *v2.asCell());
break;
case '-':
*result.asCell() = cellSub(*v1.asCell(), *v2.asCell());
break;
case '*':
*result.asCell() = cellMul(*v1.asCell(), *v2.asCell());
break;
case '/':
if ((v2.isIntVal() && v2.toInt64() == 0) || v2.toDouble() == 0.0) {
return ExpressionPtr();
}
*result.asCell() = cellDiv(*v1.asCell(), *v2.asCell());
break;
case '%':
if ((v2.isIntVal() && v2.toInt64() == 0) || v2.toDouble() == 0.0) {
return ExpressionPtr();
}
*result.asCell() = cellMod(*v1.asCell(), *v2.asCell());
break;
case T_SL:
result = v1.toInt64() << v2.toInt64();
break;
case T_SR:
result = v1.toInt64() >> v2.toInt64();
break;
case T_BOOLEAN_OR:
result = v1.toBoolean() || v2.toBoolean(); break;
case T_BOOLEAN_AND:
result = v1.toBoolean() && v2.toBoolean(); break;
case T_LOGICAL_OR:
result = v1.toBoolean() || v2.toBoolean(); break;
case T_LOGICAL_AND:
result = v1.toBoolean() && v2.toBoolean(); break;
case T_INSTANCEOF: {
if (v2.isString()) {
if (v1.isArray() &&
interface_supports_array(v2.getStringData())) {
result = true;
break;
}
if (v1.isString() &&
interface_supports_string(v2.getStringData())) {
result = true;
break;
}
if (v1.isInteger() &&
interface_supports_int(v2.getStringData())) {
result = true;
break;
}
if (v1.isDouble() &&
interface_supports_double(v2.getStringData())) {
result = true;
break;
}
}
result = false;
break;
}
default:
return ExpressionPtr();
}
return makeScalarExpression(ar, result);
} catch (...) {
}
} else if (ar->getPhase() != AnalysisResult::ParseAllFiles) {
bool f_is_callable(const Variant& v, bool syntax /* = false */,
VRefParam name /* = null */) {
bool ret = true;
if (LIKELY(!syntax)) {
CallerFrame cf;
ObjectData* obj = NULL;
HPHP::Class* cls = NULL;
StringData* invName = NULL;
const HPHP::Func* f = vm_decode_function(v, cf(), false, obj, cls,
invName, false);
if (f == NULL) {
ret = false;
}
if (invName != NULL) {
decRefStr(invName);
}
if (!name.isReferenced()) return ret;
}
auto const tv_func = v.asCell();
if (IS_STRING_TYPE(tv_func->m_type)) {
if (name.isReferenced()) name = tv_func->m_data.pstr;
return ret;
}
if (tv_func->m_type == KindOfArray) {
const Array& arr = Array(tv_func->m_data.parr);
const Variant& clsname = arr.rvalAtRef(int64_t(0));
const Variant& mthname = arr.rvalAtRef(int64_t(1));
if (arr.size() != 2 ||
&clsname == &null_variant ||
&mthname == &null_variant) {
name = String("Array");
return false;
}
auto const tv_meth = mthname.asCell();
if (!IS_STRING_TYPE(tv_meth->m_type)) {
if (name.isReferenced()) name = v.toString();
return false;
}
auto const tv_cls = clsname.asCell();
if (tv_cls->m_type == KindOfObject) {
name = tv_cls->m_data.pobj->o_getClassName();
} else if (IS_STRING_TYPE(tv_cls->m_type)) {
name = tv_cls->m_data.pstr;
} else {
name = v.toString();
return false;
}
name = concat3(name, s_colon2, tv_meth->m_data.pstr);
return ret;
}
if (tv_func->m_type == KindOfObject) {
ObjectData *d = tv_func->m_data.pobj;
const Func* invoke = d->getVMClass()->lookupMethod(s__invoke.get());
if (name.isReferenced()) {
if (d->instanceof(c_Closure::classof())) {
// Hack to stop the mangled name from showing up
name = s_Closure__invoke;
} else {
name = d->o_getClassName() + "::__invoke";
}
}
return invoke != NULL;
}
return false;
}
