/* |
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* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.jdi; |
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/** |
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* The mirror for a type in the target VM. |
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* This interface is the root of a type hierarchy encompassing primitive |
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* types and reference types. |
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* <P> |
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* A Type may be used to represent a run-time type: |
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* <BLOCKQUOTE> |
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* {@link Value}.type() |
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* </BLOCKQUOTE> |
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* or a compile-time type: |
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* <BLOCKQUOTE> |
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* {@link Field#type()} <BR> |
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* {@link Method#returnType()} <BR> |
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* {@link Method#argumentTypes()} <BR> |
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* {@link LocalVariable#type()} <BR> |
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* {@link ArrayType#componentType()} |
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* </BLOCKQUOTE> |
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* <P> |
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* The following table illustrates which subinterfaces of Type |
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* are used to mirror types in the target VM -- |
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* <TABLE BORDER=1 SUMMARY="Maps each type declared in target to a mirrored |
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* instance of a subinterface of PrimitiveType or ReferenceType"> |
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* <TR BGCOLOR="#EEEEFF"> |
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* <TH id="primtype" colspan=3>Subinterfaces of {@link PrimitiveType}</TH> |
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* <TR BGCOLOR="#EEEEFF"> |
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* <TH id="declared" align="left" colspan=2>Type declared in target as</TH> |
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* <TH id="mirrored" align="left">Is mirrored as an instance of</TH> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>boolean</CODE></TD> |
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* <TD headers="primtype mirrored"> {@link BooleanType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>byte</CODE></TD> |
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* <TD headers="primtype mirrored">{@link ByteType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>char</CODE></TD> |
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* <TD headers="primtype mirrored">{@link CharType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>double</CODE></TD> |
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* <TD headers="primtype mirrored">{@link DoubleType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>float</CODE></TD> |
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* <TD headers="primtype mirrored">{@link FloatType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>int</CODE></TD> |
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* <TD headers="primtype mirrored">{@link IntegerType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>long</CODE></TD> |
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* <TD headers="primtype mirrored">{@link LongType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>short</CODE></TD> |
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* <TD headers="primtype mirrored">{@link ShortType}</TD> |
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* <TR> |
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* <TD headers="primtype declared" colspan=2><CODE>void</CODE></TD> |
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* <TD headers="primtype mirrored">{@link VoidType}</TD> |
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* <TR BGCOLOR="#EEEEFF"> |
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* <TH id="reftype" colspan=3>Subinterfaces of {@link ReferenceType}</TH> |
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* <TR BGCOLOR="#EEEEFF"> |
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* <TH id="declared2" align="left">Type declared in target as</TH> |
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* <TH id="example2" align="left">For example</TH> |
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* <TH id="mirrored2" align="left">Is mirrored as an instance of</TH> |
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* <TR> |
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* <TD headers="reftype declared2"><I>a class</I></TD> |
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* <TD headers="reftype example2"><CODE>Date</CODE></TD> |
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* <TD headers="reftype mirrored2">{@link ClassType}</TD> |
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* <TR> |
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* <TD headers="reftype declared2"><I>an interface</I></TD> |
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* <TD headers="reftype example2"><CODE>Runnable</CODE></TD> |
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* <TD headers="reftype mirrored2">{@link InterfaceType}</TD> |
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* <TR> |
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* <TD headers="reftype declared2"><I>an array</I></TD> |
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* <TD headers="reftype example2"> </TD> |
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* <TD headers="reftype mirrored2">{@link ArrayType}</TD> |
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* <TR> |
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* <TD headers="reftype declared2"><I>an array</I></TD> |
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* <TD headers="reftype example2"><CODE>int[]</CODE></TD> |
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* <TD headers="reftype mirrored2">{@link ArrayType} whose |
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* {@link ArrayType#componentType() componentType()} is |
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* {@link IntegerType}</TD> |
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* <TR> |
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* <TD headers="reftype declared2"><I>an array</I></TD> |
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* <TD headers="reftype example2"><CODE>Date[]</CODE></TD> |
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* <TD headers="reftype mirrored2">{@link ArrayType} whose |
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* {@link ArrayType#componentType() componentType()} is |
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* {@link ClassType}</TD> |
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* <TR> |
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* <TD headers="reftype declared2"><I>an array</I></TD> |
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* <TD headers="reftype example2"><CODE>Runnable[]</CODE></TD> |
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* <TD headers="reftype mirrored2">{@link ArrayType} whose |
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* {@link ArrayType#componentType() componentType()} is |
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* {@link InterfaceType}</TD> |
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* </TABLE> |
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* |
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* @see PrimitiveType Subinterface PrimitiveType |
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* @see ReferenceType Subinterface ReferenceType |
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* @see Value Value - for relationship between Type and Value |
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* @see Field#type() Field.type() - for usage examples |
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* |
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* @author Robert Field |
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* @author Gordon Hirsch |
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* @author James McIlree |
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* @since 1.3 |
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*/ |
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@jdk.Exported |
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public interface Type extends Mirror { |
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/** |
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* Returns the JNI-style signature for this type. |
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* <p> |
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* For primitive classes |
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* the returned signature is the signature of the corresponding primitive |
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* type; for example, "I" is returned as the signature of the class |
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* represented by {@link java.lang.Integer#TYPE}. |
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* |
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* @see <a href="doc-files/signature.html">Type Signatures</a> |
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* @return the string containing the type signature. |
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*/ |
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String signature(); |
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/** |
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* @return a text representation of this type. |
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*/ |
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String name(); |
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} |