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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* instanceof, checkcast, etc.
*/
#ifndef DALVIK_OO_TYPECHECK_H_
#define DALVIK_OO_TYPECHECK_H_
/* VM startup/shutdown */
bool dvmInstanceofStartup(void);
void dvmInstanceofShutdown(void);
/* used by dvmInstanceof; don't call */
extern "C" int dvmInstanceofNonTrivial(const ClassObject* instance,
const ClassObject* clazz);
/*
* Determine whether "instance" is an instance of "clazz".
*
* Returns 0 (false) if not, 1 (true) if so.
*/
INLINE int dvmInstanceof(const ClassObject* instance, const ClassObject* clazz)
{
if (instance == clazz) {
if (CALC_CACHE_STATS)
gDvm.instanceofCache->trivial++;
return 1;
} else
return dvmInstanceofNonTrivial(instance, clazz);
}
/*
* Determine whether a class implements an interface.
*
* Returns 0 (false) if not, 1 (true) if so.
*/
int dvmImplements(const ClassObject* clazz, const ClassObject* interface);
/*
* Determine whether "sub" is a sub-class of "clazz".
*
* Returns 0 (false) if not, 1 (true) if so.
*/
INLINE int dvmIsSubClass(const ClassObject* sub, const ClassObject* clazz) {
do {
/*printf("###### sub='%s' clazz='%s'\n", sub->name, clazz->name);*/
if (sub == clazz)
return 1;
sub = sub->super;
} while (sub != NULL);
return 0;
}
/*
* Determine whether or not we can store an object into an array, based
* on the classes of the two.
*
* Returns 0 (false) if not, 1 (true) if so.
*/
extern "C" bool dvmCanPutArrayElement(const ClassObject* elemClass,
const ClassObject* arrayClass);
#endif // DALVIK_OO_TYPECHECK_H_
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