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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.
*/
#include "jni_internal.h"
#include "class_linker.h"
#include "object.h"
#include "object_utils.h"
#include "reflection.h"
#include "JniConstants.h" // Last to avoid problems with LOG redefinition.
namespace art {
/*
* We get here through Constructor.newInstance(). The Constructor object
* would not be available if the constructor weren't public (per the
* definition of Class.getConstructor), so we can skip the method access
* check. We can also safely assume the constructor isn't associated
* with an interface, array, or primitive class.
*/
static jobject Constructor_newInstance(JNIEnv* env, jobject javaMethod, jobjectArray javaArgs) {
ScopedThreadStateChange tsc(Thread::Current(), Thread::kRunnable);
Method* m = Decode<Object*>(env, javaMethod)->AsMethod();
Class* c = m->GetDeclaringClass();
if (c->IsAbstract()) {
Thread::Current()->ThrowNewExceptionF("Ljava/lang/InstantiationException;",
"Can't instantiate abstract class %s", PrettyDescriptor(c).c_str());
return NULL;
}
if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(c, true, true)) {
DCHECK(Thread::Current()->IsExceptionPending());
return NULL;
}
Object* receiver = c->AllocObject();
if (receiver == NULL) {
return NULL;
}
jobject javaReceiver = AddLocalReference<jobject>(env, receiver);
InvokeMethod(env, javaMethod, javaReceiver, javaArgs);
// Constructors are ()V methods, so we shouldn't touch the result of InvokeMethod.
return javaReceiver;
}
static JNINativeMethod gMethods[] = {
NATIVE_METHOD(Constructor, newInstance, "([Ljava/lang/Object;)Ljava/lang/Object;"),
};
void register_java_lang_reflect_Constructor(JNIEnv* env) {
jniRegisterNativeMethods(env, "java/lang/reflect/Constructor", gMethods, NELEM(gMethods));
}
} // namespace art
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