org.checkerframework.common.aliasing.qual.NonLeaked Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of checker Show documentation

The Checker Framework enhances Java's type system to make it more powerful and useful. This lets software developers detect and prevent errors in their Java programs. The Checker Framework includes compiler plug-ins ("checkers") that find bugs or verify their absence. It also permits you to write your own compiler plug-ins.

There is a newer version: 3.42.0-eisop4

Show newest version

package org.checkerframework.common.aliasing.qual;

import org.checkerframework.framework.qual.SubtypeOf;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * This annotation is used on a formal parameter to indicate that the parameter is not leaked
 * (stored in a location that could be accessed later) nor returned by the method body.
 *
 * For example, the parameter of {@link String#String(String s)} is {@code @NonLeaked}, because
 * the method only uses the parameter to make a copy of it.
 *
 * This annotation is currently trusted, not checked.
 *
 * @see LeakedToResult
 * @checker_framework.manual #aliasing-checker Aliasing Checker
 */

// This is a type qualifier because of a Checker Framework limitation (Issue 383), but its hierarchy
// is ignored. Once the stub parser gets updated to read non-type-qualifiers annotations on stub
// files, this annotation won't be a type qualifier anymore.

@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE_USE})
@SubtypeOf({})
public @interface NonLeaked {}