axmol/thirdparty/jni.hpp/include/jni/npe.hpp

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#pragma once
#include <jni/functions.hpp>
namespace jni
{
[[noreturn]] inline void ThrowNullPointerException(JNIEnv& env, const char* message = nullptr)
{
ThrowNew(env, FindClass(env, "java/lang/NullPointerException"), message);
}
template < class T >
void NullCheck(JNIEnv& env, T* ptr, const char* message = nullptr)
{
if (!ptr) ThrowNullPointerException(env, message);
}
template < class T >
T& SafeDereference(JNIEnv& env, T* ptr, const char* message = nullptr)
{
NullCheck(env, ptr, message);
return *ptr;
}
}