// ------------------------------------------------------------------
// ciObjectFactory::create_new_object
//
// Create a new ciObject from a Metadata*.
//
// Implementation note: this functionality could be virtual behavior
// of the oop itself. For now, we explicitly marshal the object.
ciMetadata* ciObjectFactory::create_new_object(Metadata* o) {
EXCEPTION_CONTEXT;
if (o->is_klass()) {
KlassHandle h_k(THREAD, (Klass*)o);
Klass* k = (Klass*)o;
if (k->oop_is_instance()) {
return new (arena()) ciInstanceKlass(h_k);
} else if (k->oop_is_objArray()) {
return new (arena()) ciObjArrayKlass(h_k);
} else if (k->oop_is_typeArray()) {
return new (arena()) ciTypeArrayKlass(h_k);
}
} else if (o->is_method()) {
methodHandle h_m(THREAD, (Method*)o);
return new (arena()) ciMethod(h_m);
} else if (o->is_methodData()) {
// Hold methodHandle alive - might not be necessary ???
methodHandle h_m(THREAD, ((MethodData*)o)->method());
return new (arena()) ciMethodData((MethodData*)o);
}
// The oop is of some type not supported by the compiler interface.
ShouldNotReachHere();
return NULL;
}
// ------------------------------------------------------------------
// ciObjectFactory::create_new_metadata
//
// Create a new ciMetadata from a Metadata*.
//
// Implementation note: in order to keep Metadata live, an auxiliary ciObject
// is used, which points to it's holder.
ciMetadata* ciObjectFactory::create_new_metadata(Metadata* o) {
EXCEPTION_CONTEXT;
// Hold metadata from unloading by keeping it's holder alive.
if (_initialized && o->is_klass()) {
Klass* holder = ((Klass*)o);
if (holder->oop_is_instance() && InstanceKlass::cast(holder)->is_anonymous()) {
// Though ciInstanceKlass records class loader oop, it's not enough to keep
// VM anonymous classes alive (loader == NULL). Klass holder should be used instead.
// It is enough to record a ciObject, since cached elements are never removed
// during ciObjectFactory lifetime. ciObjectFactory itself is created for
// every compilation and lives for the whole duration of the compilation.
ciObject* h = get(holder->klass_holder());
}
}
if (o->is_klass()) {
KlassHandle h_k(THREAD, (Klass*)o);
Klass* k = (Klass*)o;
if (k->oop_is_instance()) {
return new (arena()) ciInstanceKlass(h_k);
} else if (k->oop_is_objArray()) {
return new (arena()) ciObjArrayKlass(h_k);
} else if (k->oop_is_typeArray()) {
return new (arena()) ciTypeArrayKlass(h_k);
}
} else if (o->is_method()) {
methodHandle h_m(THREAD, (Method*)o);
ciEnv *env = CURRENT_THREAD_ENV;
ciInstanceKlass* holder = env->get_instance_klass(h_m()->method_holder());
return new (arena()) ciMethod(h_m, holder);
} else if (o->is_methodData()) {
// Hold methodHandle alive - might not be necessary ???
methodHandle h_m(THREAD, ((MethodData*)o)->method());
return new (arena()) ciMethodData((MethodData*)o);
}
// The Metadata* is of some type not supported by the compiler interface.
ShouldNotReachHere();
return NULL;
}
// ------------------------------------------------------------------
// ciObjectFactory::create_new_object
//
// Create a new ciObject from an oop.
//
// Implementation note: this functionality could be virtual behavior
// of the oop itself. For now, we explicitly marshal the object.
ciObject* ciObjectFactory::create_new_object(oop o) {
EXCEPTION_CONTEXT;
if (o->is_symbol()) {
symbolHandle h_o(THREAD, (symbolOop)o);
assert(vmSymbols::find_sid(h_o()) == vmSymbols::NO_SID, "");
return new (arena()) ciSymbol(h_o, vmSymbols::NO_SID);
} else if (o->is_klass()) {
KlassHandle h_k(THREAD, (klassOop)o);
Klass* k = ((klassOop)o)->klass_part();
if (k->oop_is_instance()) {
return new (arena()) ciInstanceKlass(h_k);
} else if (k->oop_is_objArray()) {
return new (arena()) ciObjArrayKlass(h_k);
} else if (k->oop_is_typeArray()) {
return new (arena()) ciTypeArrayKlass(h_k);
} else if (k->oop_is_method()) {
return new (arena()) ciMethodKlass(h_k);
} else if (k->oop_is_symbol()) {
return new (arena()) ciSymbolKlass(h_k);
} else if (k->oop_is_klass()) {
if (k->oop_is_objArrayKlass()) {
return new (arena()) ciObjArrayKlassKlass(h_k);
} else if (k->oop_is_typeArrayKlass()) {
return new (arena()) ciTypeArrayKlassKlass(h_k);
} else if (k->oop_is_instanceKlass()) {
return new (arena()) ciInstanceKlassKlass(h_k);
} else {
assert(o == Universe::klassKlassObj(), "bad klassKlass");
return new (arena()) ciKlassKlass(h_k);
}
}
} else if (o->is_method()) {
methodHandle h_m(THREAD, (methodOop)o);
return new (arena()) ciMethod(h_m);
} else if (o->is_methodData()) {
methodDataHandle h_md(THREAD, (methodDataOop)o);
return new (arena()) ciMethodData(h_md);
} else if (o->is_instance()) {
instanceHandle h_i(THREAD, (instanceOop)o);
if (java_dyn_CallSite::is_instance(o))
return new (arena()) ciCallSite(h_i);
else if (java_dyn_MethodHandle::is_instance(o))
return new (arena()) ciMethodHandle(h_i);
else
return new (arena()) ciInstance(h_i);
} else if (o->is_objArray()) {
objArrayHandle h_oa(THREAD, (objArrayOop)o);
return new (arena()) ciObjArray(h_oa);
} else if (o->is_typeArray()) {
typeArrayHandle h_ta(THREAD, (typeArrayOop)o);
return new (arena()) ciTypeArray(h_ta);
} else if (o->is_constantPoolCache()) {
constantPoolCacheHandle h_cpc(THREAD, (constantPoolCacheOop) o);
return new (arena()) ciCPCache(h_cpc);
}
// The oop is of some type not supported by the compiler interface.
ShouldNotReachHere();
return NULL;
}