bool f_is_callable(CVarRef v, bool syntax /* = false */,
VRefParam name /* = null */) {
bool ret = true;
if (LIKELY(!syntax)) {
if (hhvm) {
CallerFrame cf;
ObjectData* obj = NULL;
HPHP::VM::Class* cls = NULL;
StringData* invName = NULL;
const HPHP::VM::Func* f = vm_decode_function(v, cf(), false, obj, cls,
invName, false);
if (f == NULL) {
ret = false;
}
if (invName != NULL) {
LITSTR_DECREF(invName);
}
} else {
MethodCallPackage mcp;
String classname, methodname;
bool doBind;
ret = get_user_func_handler(v, true, mcp,
classname, methodname, doBind, false);
if (ret && mcp.ci->m_flags & (CallInfo::Protected|CallInfo::Private)) {
classname = mcp.getClassName();
if (!ClassInfo::HasAccess(classname, *mcp.name,
mcp.ci->m_flags & CallInfo::StaticMethod ||
!mcp.obj,
mcp.obj)) {
ret = false;
}
}
}
if (!name.isReferenced()) return ret;
}
Variant::TypedValueAccessor tv_func = v.getTypedAccessor();
if (Variant::IsString(tv_func)) {
if (name.isReferenced()) name = Variant::GetStringData(tv_func);
return ret;
}
if (Variant::GetAccessorType(tv_func) == KindOfArray) {
CArrRef arr = Variant::GetAsArray(tv_func);
CVarRef clsname = arr.rvalAtRef(0LL);
CVarRef mthname = arr.rvalAtRef(1LL);
if (arr.size() != 2 ||
&clsname == &null_variant ||
&mthname == &null_variant) {
name = v.toString();
return false;
}
Variant::TypedValueAccessor tv_meth = mthname.getTypedAccessor();
if (!Variant::IsString(tv_meth)) {
if (name.isReferenced()) name = v.toString();
return false;
}
Variant::TypedValueAccessor tv_cls = clsname.getTypedAccessor();
if (Variant::GetAccessorType(tv_cls) == KindOfObject) {
name = Variant::GetObjectData(tv_cls)->o_getClassName();
} else if (Variant::IsString(tv_cls)) {
name = Variant::GetStringData(tv_cls);
} else {
name = v.toString();
return false;
}
name = concat3(name, "::", Variant::GetAsString(tv_meth));
return ret;
}
if (Variant::GetAccessorType(tv_func) == KindOfObject) {
ObjectData *d = Variant::GetObjectData(tv_func);
if (hhvm) {
static const StringData* sd__invoke
= StringData::GetStaticString("__invoke");
const VM::Func* invoke = d->getVMClass()->lookupMethod(sd__invoke);
if (name.isReferenced()) {
if (d->o_instanceof("closure")) {
// Hack to stop the mangled name from showing up
name = "Closure::__invoke";
} else {
name = d->o_getClassName() + "::__invoke";
}
}
return invoke != NULL;
} else {
void *extra;
if (d->t___invokeCallInfoHelper(extra)) {
name = d->o_getClassName() + "::__invoke";
return ret;
}
if (name.isReferenced()) {
name = v.toString();
}
}
}
return false;
}
bool f_is_callable(CVarRef v, bool syntax /* = false */,
VRefParam name /* = null */) {
if (v.isString()) {
if (name.isReferenced()) name = v;
if (syntax) return true;
String str = v.toString();
int c = str.find("::");
if (c != 0 && c != String::npos && c + 2 < str.size()) {
String classname = str.substr(0, c);
String methodname = str.substr(c + 2);
return f_class_exists(classname) &&
ClassInfo::HasAccess(classname, methodname, true, false);
}
return f_function_exists(str);
}
if (v.is(KindOfArray)) {
Array arr = v.toArray();
if (arr.size() == 2 && arr.exists(0LL) && arr.exists(1LL)) {
Variant v0 = arr.rvalAt(0LL);
Variant v1 = arr.rvalAt(1LL);
Object obj;
bool staticCall = false;
if (v0.is(KindOfObject)) {
obj = v0.toObject();
v0 = obj->o_getClassName();
} else if (v0.isString()) {
if (!f_class_exists(v0.toString())) {
return false;
}
staticCall = true;
}
if (v1.isString()) {
String str = v1.toString();
int c = str.find("::");
if (c != 0 && c != String::npos && c + 2 < str.size()) {
String name1 = v0.toString();
String name2 = str.substr(0, c);
ASSERT(name1.get() && name2.get());
if (name1->isame(name2.get()) ||
ClassInfo::IsSubClass(name1, name2, false)) {
staticCall = true;
v0 = name2;
v1 = str.substr(c + 2);
}
}
}
if (v0.isString() && v1.isString()) {
if (name.isReferenced()) {
name = v0.toString() + "::" + v1.toString();
}
if (same(v0, s_self) || same(v0, s_parent)) {
throw NotImplementedException("augmenting class scope info");
}
return ClassInfo::HasAccess(v0, v1, staticCall, !obj.isNull());
}
}
}
if (v.isObject()) {
ObjectData *d = v.objectForCall();
if (name.isReferenced()) {
name = d->o_getClassName() + "::__invoke";
}
void *extra;
const CallInfo *cit = d->t___invokeCallInfoHelper(extra);
return cit != NULL;
}
if (name.isReferenced()) {
name = v.toString();
}
return false;
}
