com.bugvm.rt.bro.annotation.Variadic Maven / Gradle / Ivy
/*
* Copyright (C) 2015 RoboVM AB
*
* 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.
*/
package com.bugvm.rt.bro.annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Used to specify the index of the first {@code va_arg} parameter in a
* {@link Bridge} method. The parameter and all following parameters will be
* replaced by {@code ...} when generating the native function signature. For
* static methods the index specified in this annotation has to be 1 or greater.
* Bro does not support passing variable number of arguments. The Java signature
* still needs to have a fixed number of parameters but the target native
* function can be a function which can take a variable number of arguments
* (e.g. {@code printf(char *, ...)}).
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Variadic {
/**
* The index of the first {@code va_arg} parameter. Must be >0 for static
* methods.
*/
int value();
}