Function call_instance_method

src/agent/lua/api_java.c:509–558

============================================================================= Instance method CALL =============================================================================

// Instance method CALL
//=============================================================================
static jvalue call_instance_method(JNIEnv* env, jobject instance,
                                   const char* method_name, const char* signature,
                                   jvalue* args) {
    jvalue result;
    memset(&result, 0, sizeof(result));

    jclass clazz = (*env)->GetObjectClass(env, instance);
    jmethodID method = (*env)->GetMethodID(env, clazz, method_name, signature);
    if (!method) {
        LOGE("Instance method not found: %s%s", method_name, signature);
        (*env)->ExceptionClear(env);
        return result;
    }

    ParsedSignature parsed = parse_signature(signature);

    switch (parsed.return_type) {
        case 'V':
            (*env)->CallVoidMethodA(env, instance, method, args);
            break;
        case 'Z':
            result.z = (*env)->CallBooleanMethodA(env, instance, method, args);
            break;
        case 'I':
            result.i = (*env)->CallIntMethodA(env, instance, method, args);
            break;
        case 'J':
            result.j = (*env)->CallLongMethodA(env, instance, method, args);
            break;
        case 'F':
            result.f = (*env)->CallFloatMethodA(env, instance, method, args);
            break;
        case 'D':
            result.d = (*env)->CallDoubleMethodA(env, instance, method, args);
            break;
        case 'L':
        case '[':
            result.l = (*env)->CallObjectMethodA(env, instance, method, args);
            break;
        default:
            LOGE("Unknown return type: %c", parsed.return_type);
    }

    if ((*env)->ExceptionCheck(env)) {
        (*env)->ExceptionDescribe(env);
        (*env)->ExceptionClear(env);
    }

    return result;
}

//=============================================================================
// Lua Bindings