Arquivos
hhvm/hphp/runtime/vm/instance.cpp
T
Edwin Smith 3515793e74 Remove ArrayData::nvSet() wrappers and several dead Array helpers.
nvSet() only casts the value from TypedValue* to const Variant&; do it
at callsites.  Inlined array_setm_ik1_v0() and array_setm_s0k1_v0() into
their only remaining callsites in translator-runtime.cpp.
2013-06-06 15:57:05 -07:00

812 linhas
26 KiB
C++

/*
+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#include "hphp/runtime/vm/instance.h"
#include "hphp/runtime/base/base_includes.h"
#include "hphp/runtime/base/variable_serializer.h"
#include "hphp/runtime/vm/core_types.h"
#include "hphp/runtime/vm/member_operations.h"
#include "hphp/runtime/vm/hhbc.h"
#include "hphp/runtime/vm/class.h"
#include "hphp/runtime/vm/object_allocator_sizes.h"
#include "hphp/runtime/vm/jit/translator-inline.h"
#include "hphp/runtime/ext/ext_collections.h"
#include "hphp/system/lib/systemlib.h"
namespace HPHP {
static StaticString s___get(LITSTR_INIT("__get"));
static StaticString s___set(LITSTR_INIT("__set"));
static StaticString s___isset(LITSTR_INIT("__isset"));
static StaticString s___unset(LITSTR_INIT("__unset"));
static StaticString s___call(LITSTR_INIT("__call"));
static StaticString s___callStatic(LITSTR_INIT("__callStatic"));
TRACE_SET_MOD(runtime);
int HPHP::Instance::ObjAllocatorSizeClassCount =
HPHP::InitializeAllocators();
void deepInitHelper(TypedValue* propVec, const TypedValueAux* propData,
size_t nProps) {
auto* dst = propVec;
auto* src = propData;
for (; src != propData + nProps; ++src, ++dst) {
*dst = *src;
// m_aux.u_deepInit is true for properties that need "deep" initialization
if (src->deepInit()) {
tvIncRef(dst);
collectionDeepCopyTV(dst);
}
}
}
TypedValue* Instance::propVec() {
uintptr_t ret = (uintptr_t)this + sizeof(ObjectData) + builtinPropSize();
// TODO(#1432007): some builtins still do not have TypedValue-aligned sizes.
assert(ret % sizeof(TypedValue) == builtinPropSize() % sizeof(TypedValue));
return (TypedValue*) ret;
}
const TypedValue* Instance::propVec() const {
return const_cast<Instance*>(this)->propVec();
}
Instance* Instance::callCustomInstanceInit() {
static StringData* sd_init = StringData::GetStaticString("__init__");
const Func* init = m_cls->lookupMethod(sd_init);
if (init != nullptr) {
TypedValue tv;
// We need to incRef/decRef here because we're still a new (_count
// == 0) object and invokeFunc is going to expect us to have a
// reasonable refcount.
try {
incRefCount();
g_vmContext->invokeFuncFew(&tv, init, this);
decRefCount();
assert(!IS_REFCOUNTED_TYPE(tv.m_type));
} catch (...) {
this->setNoDestruct();
decRefObj(this);
throw;
}
}
return this;
}
HOT_FUNC_VM
Instance* Instance::newInstanceRaw(Class* cls, int idx) {
Instance* obj = (Instance*)ALLOCOBJIDX(idx);
new (obj) Instance(cls, noinit);
return obj;
}
void Instance::invokeUserMethod(TypedValue* retval, const Func* method,
CArrRef params) {
g_vmContext->invokeFunc(retval, method, params, this);
}
Object Instance::FromArray(ArrayData *properties) {
Instance* retval = Instance::newInstance(SystemLib::s_stdclassClass);
retval->initDynProps();
HphpArray* props = static_cast<HphpArray*>(retval->o_properties.get());
for (ssize_t pos = properties->iter_begin(); pos != ArrayData::invalid_index;
pos = properties->iter_advance(pos)) {
TypedValue* value = properties->nvGetValueRef(pos);
TypedValue key;
properties->nvGetKey(&key, pos);
if (key.m_type == KindOfInt64) {
props->set(key.m_data.num, tvAsCVarRef(value), false);
} else {
assert(IS_STRING_TYPE(key.m_type));
StringData* strKey = key.m_data.pstr;
props->set(strKey, tvAsCVarRef(value), false);
decRefStr(strKey);
}
}
return retval;
}
void Instance::initDynProps(int numDynamic /* = 0 */) {
// Create o_properties with room for numDynamic
o_properties.asArray() = ArrayData::Make(numDynamic);
}
Slot Instance::declPropInd(TypedValue* prop) const {
// Do an address range check to determine whether prop physically resides
// in propVec.
const TypedValue* pv = propVec();
if (prop >= pv && prop < &pv[m_cls->numDeclProperties()]) {
return prop - pv;
} else {
return kInvalidSlot;
}
}
template <bool declOnly>
TypedValue* Instance::getPropImpl(Class* ctx, const StringData* key,
bool& visible, bool& accessible,
bool& unset) {
TypedValue* prop = nullptr;
unset = false;
Slot propInd = m_cls->getDeclPropIndex(ctx, key, accessible);
visible = (propInd != kInvalidSlot);
if (propInd != kInvalidSlot) {
// We found a visible property, but it might not be accessible.
// No need to check if there is a dynamic property with this name.
prop = &propVec()[propInd];
if (prop->m_type == KindOfUninit) {
unset = true;
}
} else {
assert(!visible && !accessible);
// We could not find a visible property. We need to check for a
// dynamic property with this name if declOnly = false.
if (!declOnly && o_properties.get()) {
prop = static_cast<HphpArray*>(o_properties.get())->nvGet(key);
if (prop) {
// o_properties.get()->nvGet() returned a non-declared property,
// we know that it is visible and accessible (since all
// dynamic properties are), and we know it is not unset
// (since unset dynamic properties don't appear in o_properties.get()).
visible = true;
accessible = true;
}
}
}
return prop;
}
TypedValue* Instance::getProp(Class* ctx, const StringData* key,
bool& visible, bool& accessible, bool& unset) {
return getPropImpl<false>(ctx, key, visible, accessible, unset);
}
TypedValue* Instance::getDeclProp(Class* ctx, const StringData* key,
bool& visible, bool& accessible,
bool& unset) {
return getPropImpl<true>(ctx, key, visible, accessible, unset);
}
void Instance::invokeSet(TypedValue* retval, const StringData* key,
TypedValue* val) {
AttributeClearer a(UseSet, this);
const Func* meth = m_cls->lookupMethod(s___set.get());
assert(meth);
invokeUserMethod(retval, meth,
CREATE_VECTOR2(CStrRef(key), tvAsVariant(val)));
}
#define MAGIC_PROP_BODY(name, attr) \
AttributeClearer a((attr), this); \
const Func* meth = m_cls->lookupMethod(name); \
assert(meth); \
invokeUserMethod(retval, meth, CREATE_VECTOR1(CStrRef(key))); \
void Instance::invokeGet(TypedValue* retval, const StringData* key) {
MAGIC_PROP_BODY(s___get.get(), UseGet);
}
void Instance::invokeIsset(TypedValue* retval, const StringData* key) {
MAGIC_PROP_BODY(s___isset.get(), UseIsset);
}
void Instance::invokeUnset(TypedValue* retval, const StringData* key) {
MAGIC_PROP_BODY(s___unset.get(), UseUnset);
}
void Instance::invokeGetProp(TypedValue*& retval, TypedValue& tvRef,
const StringData* key) {
invokeGet(&tvRef, key);
retval = &tvRef;
}
template <bool warn, bool define>
void Instance::propImpl(TypedValue*& retval, TypedValue& tvRef,
Class* ctx,
const StringData* key) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible) {
if (accessible) {
if (unset) {
if (getAttribute(UseGet)) {
invokeGetProp(retval, tvRef, key);
} else {
if (warn) {
raiseUndefProp(key);
}
if (define) {
retval = propVal;
} else {
retval = (TypedValue*)&init_null_variant;
}
}
} else {
retval = propVal;
}
} else {
if (getAttribute(UseGet)) {
invokeGetProp(retval, tvRef, key);
} else {
// No need to check hasProp since visible is true
// Visibility is either protected or private since accessible is false
Slot propInd = m_cls->lookupDeclProp(key);
bool priv = m_cls->declProperties()[propInd].m_attrs & AttrPrivate;
raise_error("Cannot access %s property %s::$%s",
priv ? "private" : "protected",
m_cls->m_preClass->name()->data(),
key->data());
}
}
} else if (UNLIKELY(!*key->data())) {
throw_invalid_property_name(StrNR(key));
} else {
if (getAttribute(UseGet)) {
invokeGetProp(retval, tvRef, key);
} else {
if (warn) {
raiseUndefProp(key);
}
if (define) {
if (o_properties.get() == nullptr) {
initDynProps();
}
o_properties.get()->lvalPtr(*(const String*)&key,
*(Variant**)(&retval), false, true);
} else {
retval = (TypedValue*)&init_null_variant;
}
}
}
}
void Instance::prop(TypedValue*& retval, TypedValue& tvRef,
Class* ctx, const StringData* key) {
propImpl<false, false>(retval, tvRef, ctx, key);
}
void Instance::propD(TypedValue*& retval, TypedValue& tvRef,
Class* ctx, const StringData* key) {
propImpl<false, true>(retval, tvRef, ctx, key);
}
void Instance::propW(TypedValue*& retval, TypedValue& tvRef,
Class* ctx, const StringData* key) {
propImpl<true, false>(retval, tvRef, ctx, key);
}
void Instance::propWD(TypedValue*& retval, TypedValue& tvRef,
Class* ctx, const StringData* key) {
propImpl<true, true>(retval, tvRef, ctx, key);
}
bool Instance::propIsset(Class* ctx, const StringData* key) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible && accessible && !unset) {
return isset(tvAsCVarRef(propVal));
}
if (!getAttribute(UseIsset)) {
return false;
}
TypedValue tv;
tvWriteUninit(&tv);
invokeIsset(&tv, key);
tvCastToBooleanInPlace(&tv);
return tv.m_data.num;
}
bool Instance::propEmpty(Class* ctx, const StringData* key) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible && accessible && !unset) {
return empty(tvAsCVarRef(propVal));
}
if (!getAttribute(UseIsset)) {
return true;
}
TypedValue tv;
tvWriteUninit(&tv);
invokeIsset(&tv, key);
tvCastToBooleanInPlace(&tv);
if (!tv.m_data.num) {
return true;
}
if (getAttribute(UseGet)) {
invokeGet(&tv, key);
bool emptyResult = empty(tvAsCVarRef(&tv));
tvRefcountedDecRef(&tv);
return emptyResult;
}
return false;
}
TypedValue* Instance::setProp(Class* ctx, const StringData* key,
TypedValue* val,
bool bindingAssignment /* = false */) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible && accessible) {
assert(propVal);
if (unset && getAttribute(UseSet)) {
TypedValue ignored;
invokeSet(&ignored, key, val);
tvRefcountedDecRef(&ignored);
} else {
if (UNLIKELY(bindingAssignment)) {
tvBind(val, propVal);
} else {
tvSet(val, propVal);
}
}
// Return a pointer to the property if it's a declared property
return declPropInd(propVal) != kInvalidSlot ? propVal : nullptr;
}
assert(!accessible);
if (visible) {
assert(propVal);
if (!getAttribute(UseSet)) {
raise_error("Cannot access protected property");
}
// Fall through to the last case below
} else if (UNLIKELY(!*key->data())) {
throw_invalid_property_name(StrNR(key));
} else if (!getAttribute(UseSet)) {
if (o_properties.get() == nullptr) {
initDynProps();
}
// when seting a dynamic property, do not write
// directly to the TypedValue in the HphpArray, since
// its _count field is used to store the string hash of
// the property name. Instead, call the appropriate
// setters (set() or setRef()).
if (UNLIKELY(bindingAssignment)) {
o_properties.get()->setRef(const_cast<StringData*>(key),
tvAsCVarRef(val), false);
} else {
o_properties.get()->set(const_cast<StringData*>(key),
tvAsCVarRef(val), false);
}
return nullptr;
}
assert(!accessible);
assert(getAttribute(UseSet));
TypedValue ignored;
invokeSet(&ignored, key, val);
tvRefcountedDecRef(&ignored);
return nullptr;
}
TypedValue* Instance::setOpProp(TypedValue& tvRef, Class* ctx,
unsigned char op, const StringData* key,
Cell* val) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible && accessible) {
assert(propVal);
if (unset && getAttribute(UseGet)) {
TypedValue tvResult;
tvWriteUninit(&tvResult);
invokeGet(&tvResult, key);
SETOP_BODY(&tvResult, op, val);
if (getAttribute(UseSet)) {
assert(tvRef.m_type == KindOfUninit);
memcpy(&tvRef, &tvResult, sizeof(TypedValue));
TypedValue ignored;
invokeSet(&ignored, key, &tvRef);
tvRefcountedDecRef(&ignored);
propVal = &tvRef;
} else {
memcpy(propVal, &tvResult, sizeof(TypedValue));
}
} else {
SETOP_BODY(propVal, op, val);
}
return propVal;
}
assert(!accessible);
if (visible) {
assert(propVal);
if (!getAttribute(UseGet) || !getAttribute(UseSet)) {
raise_error("Cannot access protected property");
}
// Fall through to the last case below
} else if (UNLIKELY(!*key->data())) {
throw_invalid_property_name(StrNR(key));
} else if (!getAttribute(UseGet)) {
if (o_properties.get() == nullptr) {
initDynProps();
}
o_properties.get()->lvalPtr(*(const String*)&key,
*(Variant**)(&propVal), false, true);
// don't write propVal->_count because it holds data
// owned by the HphpArray
propVal->m_type = KindOfNull;
SETOP_BODY(propVal, op, val);
return propVal;
} else if (!getAttribute(UseSet)) {
TypedValue tvResult;
tvWriteUninit(&tvResult);
invokeGet(&tvResult, key);
SETOP_BODY(&tvResult, op, val);
if (o_properties.get() == nullptr) {
initDynProps();
}
o_properties.get()->lvalPtr(*(const String*)&key, *(Variant**)(&propVal),
false, true);
// don't write propVal->_count because it holds data
// owned by the HphpArray
propVal->m_data.num = tvResult.m_data.num;
propVal->m_type = tvResult.m_type;
return propVal;
}
assert(!accessible);
assert(getAttribute(UseGet) && getAttribute(UseSet));
invokeGet(&tvRef, key);
SETOP_BODY(&tvRef, op, val);
TypedValue ignored;
invokeSet(&ignored, key, &tvRef);
tvRefcountedDecRef(&ignored);
propVal = &tvRef;
return propVal;
}
template <bool setResult>
void Instance::incDecPropImpl(TypedValue& tvRef, Class* ctx,
unsigned char op, const StringData* key,
TypedValue& dest) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible && accessible) {
assert(propVal);
if (unset && getAttribute(UseGet)) {
TypedValue tvResult;
tvWriteUninit(&tvResult);
invokeGet(&tvResult, key);
IncDecBody<setResult>(op, &tvResult, &dest);
if (getAttribute(UseSet)) {
TypedValue ignored;
invokeSet(&ignored, key, &tvResult);
tvRefcountedDecRef(&ignored);
propVal = &tvResult;
} else {
memcpy((void *)propVal, (void *)&tvResult, sizeof(TypedValue));
}
} else {
IncDecBody<setResult>(op, propVal, &dest);
}
return;
}
assert(!accessible);
if (visible) {
assert(propVal);
if (!getAttribute(UseGet) || !getAttribute(UseSet)) {
raise_error("Cannot access protected property");
}
// Fall through to the last case below
} else if (UNLIKELY(!*key->data())) {
throw_invalid_property_name(StrNR(key));
} else if (!getAttribute(UseGet)) {
if (o_properties.get() == nullptr) {
initDynProps();
}
o_properties.get()->lvalPtr(*(const String*)&key,
*(Variant**)(&propVal), false, true);
// don't write propVal->_count because it holds data
// owned by the HphpArray
propVal->m_type = KindOfNull;
IncDecBody<setResult>(op, propVal, &dest);
return;
} else if (!getAttribute(UseSet)) {
TypedValue tvResult;
tvWriteUninit(&tvResult);
invokeGet(&tvResult, key);
IncDecBody<setResult>(op, &tvResult, &dest);
if (o_properties.get() == nullptr) {
initDynProps();
}
o_properties.get()->lvalPtr(*(const String*)&key, *(Variant**)(&propVal),
false, true);
// don't write propVal->_count because it holds data
// owned by the HphpArray
propVal->m_data.num = tvResult.m_data.num;
propVal->m_type = tvResult.m_type;
return;
}
assert(!accessible);
assert(getAttribute(UseGet) && getAttribute(UseSet));
invokeGet(&tvRef, key);
IncDecBody<setResult>(op, &tvRef, &dest);
TypedValue ignored;
invokeSet(&ignored, key, &tvRef);
tvRefcountedDecRef(&ignored);
propVal = &tvRef;
}
// Actualize template method so that the method can be defined in instance.cpp
// (rather than instance.h), but still be invoked elsewhere.
template <>
void Instance::incDecProp<false>(TypedValue& tvRef, Class* ctx,
unsigned char op, const StringData* key,
TypedValue& dest) {
incDecPropImpl<false>(tvRef, ctx, op, key, dest);
}
template <>
void Instance::incDecProp<true>(TypedValue& tvRef, Class* ctx,
unsigned char op, const StringData* key,
TypedValue& dest) {
incDecPropImpl<true>(tvRef, ctx, op, key, dest);
}
void Instance::unsetProp(Class* ctx, const StringData* key) {
bool visible, accessible, unset;
TypedValue* propVal = getProp(ctx, key, visible, accessible, unset);
if (visible && accessible) {
Slot propInd = declPropInd(propVal);
if (propInd != kInvalidSlot) {
// Declared property.
tvSetIgnoreRef((TypedValue*)&null_variant, propVal);
} else {
// Dynamic property.
assert(o_properties.get() != nullptr);
o_properties.get()->remove(CStrRef(key), false);
}
} else if (UNLIKELY(!*key->data())) {
throw_invalid_property_name(StrNR(key));
} else {
assert(!accessible);
if (getAttribute(UseUnset)) {
TypedValue ignored;
invokeUnset(&ignored, key);
tvRefcountedDecRef(&ignored);
} else if (visible) {
raise_error("Cannot unset inaccessible property");
}
}
}
void Instance::raiseUndefProp(const StringData* key) {
raise_notice("Undefined property: %s::$%s",
m_cls->name()->data(), key->data());
}
void Instance::getProp(const Class* klass, bool pubOnly,
const PreClass::Prop* prop,
Array& props,
std::vector<bool>& inserted) const {
if (prop->attrs() & AttrStatic) {
return;
}
Slot propInd = klass->lookupDeclProp(prop->name());
assert(propInd != kInvalidSlot);
const TypedValue* propVal = &propVec()[propInd];
if ((!pubOnly || (prop->attrs() & AttrPublic)) &&
propVal->m_type != KindOfUninit &&
!inserted[propInd]) {
inserted[propInd] = true;
props.lvalAt(CStrRef(klass->declProperties()[propInd].m_mangledName))
.setWithRef(tvAsCVarRef(propVal));
}
}
void Instance::getProps(const Class* klass, bool pubOnly,
const PreClass* pc,
Array& props,
std::vector<bool>& inserted) const {
PreClass::Prop const* propVec = pc->properties();
size_t count = pc->numProperties();
for (size_t i = 0; i < count; ++i) {
getProp(klass, pubOnly, &propVec[i], props, inserted);
}
}
Variant Instance::t___destruct() {
static StringData* sd__destruct = StringData::GetStaticString("__destruct");
const Func* method = m_cls->lookupMethod(sd__destruct);
if (method) {
Variant v;
g_vmContext->invokeFuncFew((TypedValue*)&v, method, this);
return v;
} else {
return uninit_null();
}
}
Variant Instance::t___call(Variant v_name, Variant v_arguments) {
static StringData* sd__call = StringData::GetStaticString("__call");
const Func* method = m_cls->lookupMethod(sd__call);
if (method) {
Variant v;
TypedValue args[2];
tvDup(v_name.asTypedValue(), args + 0);
tvDup(v_arguments.asTypedValue(), args + 1);
g_vmContext->invokeFuncFew((TypedValue*)&v, method, this, nullptr, 2, args);
return v;
} else {
return uninit_null();
}
}
Variant Instance::t___set(Variant v_name, Variant v_value) {
const Func* method = m_cls->lookupMethod(s___set.get());
if (method) {
Variant v;
g_vmContext->invokeFunc((TypedValue*)&v, method,
Array(ArrayInit(2).set(v_name).set(withRefBind(v_value)).create()),
this);
return v;
} else {
return uninit_null();
}
}
Variant Instance::t___get(Variant v_name) {
const Func* method = m_cls->lookupMethod(s___get.get());
if (method) {
Variant v;
TypedValue args[1];
tvDup(v_name.asTypedValue(), args + 0);
g_vmContext->invokeFuncFew((TypedValue*)&v, method, this, nullptr, 1, args);
return v;
} else {
return uninit_null();
}
}
bool Instance::t___isset(Variant v_name) {
const Func* method = m_cls->lookupMethod(s___isset.get());
if (method) {
Variant v;
TypedValue args[1];
tvDup(v_name.asTypedValue(), args + 0);
g_vmContext->invokeFuncFew((TypedValue*)&v, method, this, nullptr, 1, args);
return v;
} else {
return uninit_null();
}
}
Variant Instance::t___unset(Variant v_name) {
const Func* method = m_cls->lookupMethod(s___unset.get());
if (method) {
Variant v;
TypedValue args[1];
tvDup(v_name.asTypedValue(), args + 0);
g_vmContext->invokeFuncFew((TypedValue*)&v, method, this, nullptr, 1, args);
return v;
} else {
return uninit_null();
}
}
Variant Instance::t___sleep() {
static StringData* sd__sleep = StringData::GetStaticString("__sleep");
const Func *method = m_cls->lookupMethod(sd__sleep);
if (method) {
TypedValue tv;
g_vmContext->invokeFuncFew(&tv, method, this);
return tvAsVariant(&tv);
} else {
clearAttribute(HasSleep);
return uninit_null();
}
}
Variant Instance::t___wakeup() {
static StringData* sd__wakeup = StringData::GetStaticString("__wakeup");
const Func *method = m_cls->lookupMethod(sd__wakeup);
if (method) {
TypedValue tv;
g_vmContext->invokeFuncFew(&tv, method, this);
return tvAsVariant(&tv);
} else {
return uninit_null();
}
}
Variant Instance::t___set_state(Variant v_properties) {
static StringData* sd__set_state = StringData::GetStaticString("__set_state");
const Func* method = m_cls->lookupMethod(sd__set_state);
if (method) {
Variant v;
TypedValue args[1];
tvDup(v_properties.asTypedValue(), args + 0);
g_vmContext->invokeFuncFew((TypedValue*)&v, method, this, nullptr, 1, args);
return v;
} else {
return false;
}
}
String Instance::t___tostring() {
const Func *method = m_cls->getToString();
if (method) {
TypedValue tv;
g_vmContext->invokeFuncFew(&tv, method, this);
if (!IS_STRING_TYPE(tv.m_type)) {
void (*notify_user)(const char *, ...) = &raise_error;
if (hphpiCompat) {
tvCastToStringInPlace(&tv);
notify_user = &raise_warning;
}
notify_user("Method %s::__toString() must return a string value",
m_cls->m_preClass->name()->data());
}
return tv.m_data.pstr;
} else {
std::string msg = m_cls->m_preClass->name()->data();
msg += "::__toString() was not defined";
throw BadTypeConversionException(msg.c_str());
}
}
Variant Instance::t___clone() {
static StringData* sd__clone = StringData::GetStaticString("__clone");
const Func *method = m_cls->lookupMethod(sd__clone);
if (method) {
TypedValue tv;
g_vmContext->invokeFuncFew(&tv, method, this);
return false;
} else {
return false;
}
}
void Instance::cloneSet(ObjectData* clone) {
Instance* iclone = static_cast<Instance*>(clone);
Slot nProps = m_cls->numDeclProperties();
TypedValue* iclonePropVec = (TypedValue *)((uintptr_t)iclone +
sizeof(ObjectData) + builtinPropSize());
for (Slot i = 0; i < nProps; i++) {
tvRefcountedDecRef(&iclonePropVec[i]);
tvDupFlattenVars(&propVec()[i], &iclonePropVec[i], nullptr);
}
if (o_properties.get()) {
iclone->initDynProps();
ssize_t iter = o_properties.get()->iter_begin();
while (iter != HphpArray::ElmIndEmpty) {
auto props = static_cast<HphpArray*>(o_properties.get());
TypedValue key;
props->nvGetKey(&key, iter);
assert(tvIsString(&key));
StringData* strKey = key.m_data.pstr;
TypedValue *val = props->nvGet(strKey);
TypedValue *retval;
auto cloneProps = iclone->o_properties.get();
cloneProps->lvalPtr(strKey, *(Variant**)&retval, false, true);
tvDupFlattenVars(val, retval, cloneProps);
iter = o_properties.get()->iter_advance(iter);
decRefStr(strKey);
}
}
}
ObjectData* Instance::cloneImpl() {
Instance* obj = Instance::newInstance(m_cls);
cloneSet(obj);
obj->incRefCount();
obj->t___clone();
return obj;
}
} // HPHP::VM