61 * When resolved, a member name's internal implementation may include references to JVM metadata.
62 * This representation is stateless and only descriptive.
63 * It provides no private information and no capability to use the member.
64 * <p>
65 * By contrast, a {@linkplain java.lang.reflect.Method} contains fuller information
66 * about the internals of a method (except its bytecodes) and also
67 * allows invocation. A MemberName is much lighter than a Method,
68 * since it contains about 7 fields to the 16 of Method (plus its sub-arrays),
69 * and those seven fields omit much of the information in Method.
70 * @author jrose
71 */
72 /*non-public*/ final class MemberName implements Member, Cloneable {
73 private Class<?> clazz; // class in which the method is defined
74 private String name; // may be null if not yet materialized
75 private Object type; // may be null if not yet materialized
76 private int flags; // modifier bits; see reflect.Modifier
77 //@Injected JVM_Method* vmtarget;
78 //@Injected int vmindex;
79 private Object resolution; // if null, this guy is resolved
80
81 /** Return the declaring class of this member.
82 * In the case of a bare name and type, the declaring class will be null.
83 */
84 public Class<?> getDeclaringClass() {
85 return clazz;
86 }
87
88 /** Utility method producing the class loader of the declaring class. */
89 public ClassLoader getClassLoader() {
90 return clazz.getClassLoader();
91 }
92
93 /** Return the simple name of this member.
94 * For a type, it is the same as {@link Class#getSimpleName}.
95 * For a method or field, it is the simple name of the member.
96 * For a constructor, it is always {@code "<init>"}.
97 */
98 public String getName() {
99 if (name == null) {
100 expandFromVM();
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61 * When resolved, a member name's internal implementation may include references to JVM metadata.
62 * This representation is stateless and only descriptive.
63 * It provides no private information and no capability to use the member.
64 * <p>
65 * By contrast, a {@linkplain java.lang.reflect.Method} contains fuller information
66 * about the internals of a method (except its bytecodes) and also
67 * allows invocation. A MemberName is much lighter than a Method,
68 * since it contains about 7 fields to the 16 of Method (plus its sub-arrays),
69 * and those seven fields omit much of the information in Method.
70 * @author jrose
71 */
72 /*non-public*/ final class MemberName implements Member, Cloneable {
73 private Class<?> clazz; // class in which the method is defined
74 private String name; // may be null if not yet materialized
75 private Object type; // may be null if not yet materialized
76 private int flags; // modifier bits; see reflect.Modifier
77 //@Injected JVM_Method* vmtarget;
78 //@Injected int vmindex;
79 private Object resolution; // if null, this guy is resolved
80
81
82 // The JVM uses values of -2 and above for vtable indexes.
83 // Field values are simple positive offsets.
84 // Ref: src/share/vm/oops/methodOop.hpp
85 // This value is negative enough to avoid such numbers,
86 // but not too negative.
87 static final int
88 MN_IS_METHOD = 0x00010000, // method (not constructor)
89 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
90 MN_IS_FIELD = 0x00040000, // field
91 MN_IS_TYPE = 0x00080000, // nested type
92 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
93 MN_REFERENCE_KIND_SHIFT = 24, // refKind
94 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
95 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
96 MN_SEARCH_SUPERCLASSES = 0x00100000,
97 MN_SEARCH_INTERFACES = 0x00200000;
98
99 /** Return the declaring class of this member.
100 * In the case of a bare name and type, the declaring class will be null.
101 */
102 public Class<?> getDeclaringClass() {
103 return clazz;
104 }
105
106 /** Utility method producing the class loader of the declaring class. */
107 public ClassLoader getClassLoader() {
108 return clazz.getClassLoader();
109 }
110
111 /** Return the simple name of this member.
112 * For a type, it is the same as {@link Class#getSimpleName}.
113 * For a method or field, it is the simple name of the member.
114 * For a constructor, it is always {@code "<init>"}.
115 */
116 public String getName() {
117 if (name == null) {
118 expandFromVM();
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