org.checkerframework.checker.calledmethods.qual.RequiresCalledMethods Maven / Gradle / Ivy
package org.checkerframework.checker.calledmethods.qual;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Repeatable;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.checkerframework.framework.qual.PreconditionAnnotation;
import org.checkerframework.framework.qual.QualifierArgument;
/**
* Indicates a method precondition: when the method is invoked, the specified expressions must have
* had the specified methods called on them.
*
* Do not use this annotation for formal parameters; instead, give their type a {@code @}{@link
* CalledMethods} annotation. The {@code @RequiresCalledMethods} annotation is intended for other
* expressions, such as field accesses or method calls.
*
* @checker_framework.manual #called-methods-checker Called Methods Checker
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@PreconditionAnnotation(qualifier = CalledMethods.class)
@Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
@Repeatable(RequiresCalledMethods.List.class)
public @interface RequiresCalledMethods {
/**
* The Java expressions that must have had methods called on them.
*
* @return the Java expressions that must have had methods called on them
* @see org.checkerframework.framework.qual.EnsuresQualifier
*/
// Preconditions must use "value" as the name (conditional preconditions use "expression").
String[] value();
/**
* The methods guaranteed to be invoked on the expressions.
*
* @return the methods guaranteed to be invoked on the expressions
*/
@QualifierArgument("value")
String[] methods();
/**
* A wrapper annotation that makes the {@link RequiresCalledMethods} annotation repeatable.
*
*
Programmers generally do not need to write this. It is created by Java when a programmer
* writes more than one {@link RequiresCalledMethods} annotation at the same location.
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@PreconditionAnnotation(qualifier = CalledMethods.class)
@Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
public static @interface List {
/**
* Returns the repeatable annotations.
*
* @return the repeatable annotations
*/
RequiresCalledMethods[] value();
}
}