| /* |
| * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.lang.model.type; |
| |
| import java.lang.annotation.Annotation; |
| import java.util.List; |
| import javax.lang.model.element.*; |
| import javax.lang.model.util.Types; |
| |
| /** |
| * Represents a type in the Java programming language. |
| * Types include primitive types, declared types (class and interface types), |
| * array types, type variables, and the null type. |
| * Also represented are wildcard type arguments, the signature and |
| * return types of executables, and pseudo-types corresponding to |
| * packages, modules, and the keyword {@code void}. |
| * |
| * <p> Types should be compared using the utility methods in {@link |
| * Types}. There is no guarantee that any particular type will always |
| * be represented by the same object. |
| * |
| * <p> To implement operations based on the class of an {@code |
| * TypeMirror} object, either use a {@linkplain TypeVisitor visitor} |
| * or use the result of the {@link #getKind} method. Using {@code |
| * instanceof} is <em>not</em> necessarily a reliable idiom for |
| * determining the effective class of an object in this modeling |
| * hierarchy since an implementation may choose to have a single |
| * object implement multiple {@code TypeMirror} subinterfaces. |
| * |
| * @author Joseph D. Darcy |
| * @author Scott Seligman |
| * @author Peter von der Ahé |
| * @see Element |
| * @see Types |
| * @since 1.6 |
| */ |
| public interface TypeMirror extends javax.lang.model.AnnotatedConstruct { |
| |
| /** |
| * Returns the {@code kind} of this type. |
| * |
| * @return the kind of this type |
| */ |
| TypeKind getKind(); |
| |
| /** |
| * Obeys the general contract of {@link Object#equals Object.equals}. |
| * This method does not, however, indicate whether two types represent |
| * the same type. |
| * Semantic comparisons of type equality should instead use |
| * {@link Types#isSameType(TypeMirror, TypeMirror)}. |
| * The results of {@code t1.equals(t2)} and |
| * {@code Types.isSameType(t1, t2)} may differ. |
| * |
| * @param obj the object to be compared with this type |
| * @return {@code true} if the specified object is equal to this one |
| */ |
| boolean equals(Object obj); |
| |
| /** |
| * Obeys the general contract of {@link Object#hashCode Object.hashCode}. |
| * |
| * @see #equals |
| */ |
| int hashCode(); |
| |
| /** |
| * Returns an informative string representation of this type. If |
| * possible, the string should be of a form suitable for |
| * representing this type in source code. Any names embedded in |
| * the result are qualified if possible. |
| * |
| * @return a string representation of this type |
| */ |
| String toString(); |
| |
| /** |
| * Applies a visitor to this type. |
| * |
| * @param <R> the return type of the visitor's methods |
| * @param <P> the type of the additional parameter to the visitor's methods |
| * @param v the visitor operating on this type |
| * @param p additional parameter to the visitor |
| * @return a visitor-specified result |
| */ |
| <R, P> R accept(TypeVisitor<R, P> v, P p); |
| } |