JDK8/Java8源码在线阅读

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package com.sun.jdi;

/**
 * The mirror for a type in the target VM.
 * This interface is the root of a type hierarchy encompassing primitive
 * types and reference types.
 * <P>
 * A Type may be used to represent a run-time type:
 * <BLOCKQUOTE>
 *   {@link Value}.type()
 * </BLOCKQUOTE>
 * or a compile-time type:
 * <BLOCKQUOTE>
 *  {@link Field#type()} <BR>
 *  {@link Method#returnType()} <BR>
 *  {@link Method#argumentTypes()} <BR>
 *  {@link LocalVariable#type()} <BR>
 *  {@link ArrayType#componentType()}
 * </BLOCKQUOTE>
 * <P>
 * The following table illustrates which subinterfaces of Type
 * are used to mirror types in the target VM --
 * <TABLE BORDER=1 SUMMARY="Maps each type declared in target to a mirrored
 *  instance of a subinterface of PrimitiveType or ReferenceType">
 * <TR BGCOLOR="#EEEEFF">
 *   <TH id="primtype" colspan=3>Subinterfaces of {@link PrimitiveType}</TH>
 * <TR BGCOLOR="#EEEEFF">
 *   <TH id="declared" align="left" colspan=2>Type declared in target as</TH>
 *   <TH id="mirrored" align="left">Is mirrored as an instance of</TH>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>boolean</CODE></TD>
 *   <TD headers="primtype mirrored"> {@link BooleanType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>byte</CODE></TD>
 *   <TD headers="primtype mirrored">{@link ByteType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>char</CODE></TD>
 *   <TD headers="primtype mirrored">{@link CharType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>double</CODE></TD>
 *   <TD headers="primtype mirrored">{@link DoubleType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>float</CODE></TD>
 *   <TD headers="primtype mirrored">{@link FloatType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>int</CODE></TD>
 *   <TD headers="primtype mirrored">{@link IntegerType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>long</CODE></TD>
 *   <TD headers="primtype mirrored">{@link LongType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>short</CODE></TD>
 *   <TD headers="primtype mirrored">{@link ShortType}</TD>
 * <TR>
 *   <TD headers="primtype declared" colspan=2><CODE>void</CODE></TD>
 *   <TD headers="primtype mirrored">{@link VoidType}</TD>
 * <TR BGCOLOR="#EEEEFF">
 *   <TH id="reftype"  colspan=3>Subinterfaces of {@link ReferenceType}</TH>
 * <TR BGCOLOR="#EEEEFF">
 *   <TH id="declared2" align="left">Type declared in target as</TH>
 *   <TH id="example2"  align="left">For example</TH>
 *   <TH id="mirrored2" align="left">Is mirrored as an instance of</TH>
 * <TR>
 *   <TD headers="reftype declared2"><I>a class</I></TD>
 *   <TD headers="reftype example2"><CODE>Date</CODE></TD>
 *   <TD headers="reftype mirrored2">{@link ClassType}</TD>
 * <TR>
 *   <TD headers="reftype declared2"><I>an interface</I></TD>
 *   <TD headers="reftype example2"><CODE>Runnable</CODE></TD>
 *   <TD headers="reftype mirrored2">{@link InterfaceType}</TD>
 * <TR>
 *   <TD headers="reftype declared2"><I>an array</I></TD>
 *   <TD headers="reftype example2">&nbsp;</TD>
 *   <TD headers="reftype mirrored2">{@link ArrayType}</TD>
 * <TR>
 *   <TD headers="reftype declared2"><I>an array</I></TD>
 *   <TD headers="reftype example2"><CODE>int[]</CODE></TD>
 *   <TD headers="reftype mirrored2">{@link ArrayType} whose
 *         {@link ArrayType#componentType() componentType()} is
 *         {@link IntegerType}</TD>
 * <TR>
 *   <TD headers="reftype declared2"><I>an array</I></TD>
 *   <TD headers="reftype example2"><CODE>Date[]</CODE></TD>
 *   <TD headers="reftype mirrored2">{@link ArrayType} whose
 *         {@link ArrayType#componentType() componentType()} is
 *         {@link ClassType}</TD>
 * <TR>
 *   <TD headers="reftype declared2"><I>an array</I></TD>
 *   <TD headers="reftype example2"><CODE>Runnable[]</CODE></TD>
 *   <TD headers="reftype mirrored2">{@link ArrayType} whose
 *         {@link ArrayType#componentType() componentType()} is
 *         {@link InterfaceType}</TD>
 * </TABLE>
 *
 * @see PrimitiveType Subinterface PrimitiveType
 * @see ReferenceType Subinterface ReferenceType
 * @see Value Value - for relationship between Type and Value
 * @see Field#type() Field.type() - for usage examples
 *
 * @author Robert Field
 * @author Gordon Hirsch
 * @author James McIlree
 * @since  1.3

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