1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 /* 17 * instanceof, checkcast, etc. 18 */ 19 #ifndef DALVIK_OO_TYPECHECK_H_ 20 #define DALVIK_OO_TYPECHECK_H_ 21 22 /* VM startup/shutdown */ 23 bool dvmInstanceofStartup(void); 24 void dvmInstanceofShutdown(void); 25 26 27 /* used by dvmInstanceof; don't call */ 28 extern "C" int dvmInstanceofNonTrivial(const ClassObject* instance, 29 const ClassObject* clazz); 30 31 /* 32 * Determine whether "instance" is an instance of "clazz". 33 * 34 * Returns 0 (false) if not, 1 (true) if so. 35 */ 36 INLINE int dvmInstanceof(const ClassObject* instance, const ClassObject* clazz) 37 { 38 if (instance == clazz) { 39 if (CALC_CACHE_STATS) 40 gDvm.instanceofCache->trivial++; 41 return 1; 42 } else 43 return dvmInstanceofNonTrivial(instance, clazz); 44 } 45 46 /* 47 * Determine whether a class implements an interface. 48 * 49 * Returns 0 (false) if not, 1 (true) if so. 50 */ 51 int dvmImplements(const ClassObject* clazz, const ClassObject* interface); 52 53 /* 54 * Determine whether "sub" is a sub-class of "clazz". 55 * 56 * Returns 0 (false) if not, 1 (true) if so. 57 */ 58 INLINE int dvmIsSubClass(const ClassObject* sub, const ClassObject* clazz) { 59 do { 60 /*printf("###### sub='%s' clazz='%s'\n", sub->name, clazz->name);*/ 61 if (sub == clazz) 62 return 1; 63 sub = sub->super; 64 } while (sub != NULL); 65 66 return 0; 67 } 68 69 /* 70 * Determine whether or not we can store an object into an array, based 71 * on the classes of the two. 72 * 73 * Returns 0 (false) if not, 1 (true) if so. 74 */ 75 extern "C" bool dvmCanPutArrayElement(const ClassObject* elemClass, 76 const ClassObject* arrayClass); 77 78 #endif // DALVIK_OO_TYPECHECK_H_ 79
