JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
 *
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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 Ah&eacute;
 * @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
     */

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