372 /** Utility method to query the modifier flags of this member. */
373 public boolean isStatic() {
374 return Modifier.isStatic(flags);
375 }
376 /** Utility method to query the modifier flags of this member. */
377 public boolean isPublic() {
378 return Modifier.isPublic(flags);
379 }
380 /** Utility method to query the modifier flags of this member. */
381 public boolean isPrivate() {
382 return Modifier.isPrivate(flags);
383 }
384 /** Utility method to query the modifier flags of this member. */
385 public boolean isProtected() {
386 return Modifier.isProtected(flags);
387 }
388 /** Utility method to query the modifier flags of this member. */
389 public boolean isFinal() {
390 return Modifier.isFinal(flags);
391 }
392 /** Utility method to query whether this member or its defining class is final. */
393 public boolean canBeStaticallyBound() {
394 return Modifier.isFinal(flags | clazz.getModifiers());
395 }
396 /** Utility method to query the modifier flags of this member. */
397 public boolean isVolatile() {
398 return Modifier.isVolatile(flags);
399 }
400 /** Utility method to query the modifier flags of this member. */
401 public boolean isAbstract() {
402 return Modifier.isAbstract(flags);
403 }
404 /** Utility method to query the modifier flags of this member. */
405 public boolean isNative() {
406 return Modifier.isNative(flags);
407 }
408 // let the rest (native, volatile, transient, etc.) be tested via Modifier.isFoo
409
410 // unofficial modifier flags, used by HotSpot:
411 static final int BRIDGE = 0x00000040;
412 static final int VARARGS = 0x00000080;
413 static final int SYNTHETIC = 0x00001000;
414 static final int ANNOTATION= 0x00002000;
415 static final int ENUM = 0x00004000;
416 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
417 public boolean isBridge() {
418 return allFlagsSet(IS_METHOD | BRIDGE);
419 }
420 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
421 public boolean isVarargs() {
422 return allFlagsSet(VARARGS) && isInvocable();
423 }
424 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
425 public boolean isSynthetic() {
426 return allFlagsSet(SYNTHETIC);
427 }
428
429 static final String CONSTRUCTOR_NAME = "<init>"; // the ever-popular
430
431 // modifiers exported by the JVM:
432 static final int RECOGNIZED_MODIFIERS = 0xFFFF;
433
434 // private flags, not part of RECOGNIZED_MODIFIERS:
435 static final int
436 IS_METHOD = MN_IS_METHOD, // method (not constructor)
437 IS_CONSTRUCTOR = MN_IS_CONSTRUCTOR, // constructor
438 IS_FIELD = MN_IS_FIELD, // field
439 IS_TYPE = MN_IS_TYPE, // nested type
440 CALLER_SENSITIVE = MN_CALLER_SENSITIVE, // @CallerSensitive annotation detected
441 TRUSTED_FINAL = MN_TRUSTED_FINAL; // trusted final field
442
443 static final int ALL_ACCESS = Modifier.PUBLIC | Modifier.PRIVATE | Modifier.PROTECTED;
444 static final int ALL_KINDS = IS_METHOD | IS_CONSTRUCTOR | IS_FIELD | IS_TYPE;
445 static final int IS_INVOCABLE = IS_METHOD | IS_CONSTRUCTOR;
446
447 /** Utility method to query whether this member is a method or constructor. */
448 public boolean isInvocable() {
449 return anyFlagSet(IS_INVOCABLE);
450 }
451 /** Query whether this member is a method. */
452 public boolean isMethod() {
453 return allFlagsSet(IS_METHOD);
454 }
455 /** Query whether this member is a constructor. */
456 public boolean isConstructor() {
457 return allFlagsSet(IS_CONSTRUCTOR);
458 }
459 /** Query whether this member is a field. */
460 public boolean isField() {
461 return allFlagsSet(IS_FIELD);
738 }
739
740 // Construction from symbolic parts, for queries:
741 /** Create a field or type name from the given components:
742 * Declaring class, name, type, reference kind.
743 * The declaring class may be supplied as null if this is to be a bare name and type.
744 * The resulting name will in an unresolved state.
745 */
746 public MemberName(Class<?> defClass, String name, Class<?> type, byte refKind) {
747 init(defClass, name, type, flagsMods(IS_FIELD, 0, refKind));
748 initResolved(false);
749 }
750 /** Create a method or constructor name from the given components:
751 * Declaring class, name, type, reference kind.
752 * It will be a constructor if and only if the name is {@code "<init>"}.
753 * The declaring class may be supplied as null if this is to be a bare name and type.
754 * The last argument is optional, a boolean which requests REF_invokeSpecial.
755 * The resulting name will in an unresolved state.
756 */
757 public MemberName(Class<?> defClass, String name, MethodType type, byte refKind) {
758 int initFlags = (name != null && name.equals(CONSTRUCTOR_NAME) ? IS_CONSTRUCTOR : IS_METHOD);
759 init(defClass, name, type, flagsMods(initFlags, 0, refKind));
760 initResolved(false);
761 }
762 /** Create a method, constructor, or field name from the given components:
763 * Reference kind, declaring class, name, type.
764 */
765 public MemberName(byte refKind, Class<?> defClass, String name, Object type) {
766 int kindFlags;
767 if (MethodHandleNatives.refKindIsField(refKind)) {
768 kindFlags = IS_FIELD;
769 if (!(type instanceof Class))
770 throw newIllegalArgumentException("not a field type");
771 } else if (MethodHandleNatives.refKindIsMethod(refKind)) {
772 kindFlags = IS_METHOD;
773 if (!(type instanceof MethodType))
774 throw newIllegalArgumentException("not a method type");
775 } else if (refKind == REF_newInvokeSpecial) {
776 kindFlags = IS_CONSTRUCTOR;
777 if (!(type instanceof MethodType) ||
778 !CONSTRUCTOR_NAME.equals(name))
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372 /** Utility method to query the modifier flags of this member. */
373 public boolean isStatic() {
374 return Modifier.isStatic(flags);
375 }
376 /** Utility method to query the modifier flags of this member. */
377 public boolean isPublic() {
378 return Modifier.isPublic(flags);
379 }
380 /** Utility method to query the modifier flags of this member. */
381 public boolean isPrivate() {
382 return Modifier.isPrivate(flags);
383 }
384 /** Utility method to query the modifier flags of this member. */
385 public boolean isProtected() {
386 return Modifier.isProtected(flags);
387 }
388 /** Utility method to query the modifier flags of this member. */
389 public boolean isFinal() {
390 return Modifier.isFinal(flags);
391 }
392 /** Utility method to query the modifier flags of this member. */
393 public boolean isStrict() {
394 return Modifier.isStrict(flags);
395 }
396 /** Utility method to query whether this member or its defining class is final. */
397 public boolean canBeStaticallyBound() {
398 return Modifier.isFinal(flags | clazz.getModifiers());
399 }
400 /** Utility method to query the modifier flags of this member. */
401 public boolean isVolatile() {
402 return Modifier.isVolatile(flags);
403 }
404 /** Utility method to query the modifier flags of this member. */
405 public boolean isAbstract() {
406 return Modifier.isAbstract(flags);
407 }
408 /** Utility method to query the modifier flags of this member. */
409 public boolean isNative() {
410 return Modifier.isNative(flags);
411 }
412 // let the rest (native, volatile, transient, etc.) be tested via Modifier.isFoo
413
414 // unofficial modifier flags, used by HotSpot:
415 static final int BRIDGE = 0x00000040;
416 static final int VARARGS = 0x00000080;
417 static final int SYNTHETIC = 0x00001000;
418 static final int ANNOTATION = 0x00002000;
419 static final int ENUM = 0x00004000;
420
421 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
422 public boolean isBridge() {
423 return allFlagsSet(IS_METHOD | BRIDGE);
424 }
425 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
426 public boolean isVarargs() {
427 return allFlagsSet(VARARGS) && isInvocable();
428 }
429 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
430 public boolean isSynthetic() {
431 return allFlagsSet(SYNTHETIC);
432 }
433
434 /** Query whether this member is a flat field */
435 public boolean isFlat() { return getLayout() != 0; }
436
437 /** Query whether this member is a null-restricted field */
438 public boolean isNullRestricted() { return (flags & MN_NULL_RESTRICTED) == MN_NULL_RESTRICTED; }
439
440 /**
441 * VM-internal layout code for this field, 0 if this field is not flat.
442 */
443 public int getLayout() { return (flags >>> MN_LAYOUT_SHIFT) & MN_LAYOUT_MASK; }
444
445 static final String CONSTRUCTOR_NAME = "<init>";
446
447 // modifiers exported by the JVM:
448 static final int RECOGNIZED_MODIFIERS = 0xFFFF;
449
450 // private flags, not part of RECOGNIZED_MODIFIERS:
451 static final int
452 IS_METHOD = MN_IS_METHOD, // method (not constructor)
453 IS_CONSTRUCTOR = MN_IS_CONSTRUCTOR, // constructor
454 IS_FIELD = MN_IS_FIELD, // field
455 IS_TYPE = MN_IS_TYPE, // nested type
456 CALLER_SENSITIVE = MN_CALLER_SENSITIVE, // @CallerSensitive annotation detected
457 TRUSTED_FINAL = MN_TRUSTED_FINAL; // trusted final field
458
459 static final int ALL_ACCESS = Modifier.PUBLIC | Modifier.PRIVATE | Modifier.PROTECTED;
460 static final int ALL_KINDS = IS_METHOD | IS_CONSTRUCTOR | IS_FIELD | IS_TYPE;
461 static final int IS_INVOCABLE = IS_METHOD | IS_CONSTRUCTOR;
462
463 /** Utility method to query whether this member is a method or constructor. */
464 public boolean isInvocable() {
465 return anyFlagSet(IS_INVOCABLE);
466 }
467 /** Query whether this member is a method. */
468 public boolean isMethod() {
469 return allFlagsSet(IS_METHOD);
470 }
471 /** Query whether this member is a constructor. */
472 public boolean isConstructor() {
473 return allFlagsSet(IS_CONSTRUCTOR);
474 }
475 /** Query whether this member is a field. */
476 public boolean isField() {
477 return allFlagsSet(IS_FIELD);
754 }
755
756 // Construction from symbolic parts, for queries:
757 /** Create a field or type name from the given components:
758 * Declaring class, name, type, reference kind.
759 * The declaring class may be supplied as null if this is to be a bare name and type.
760 * The resulting name will in an unresolved state.
761 */
762 public MemberName(Class<?> defClass, String name, Class<?> type, byte refKind) {
763 init(defClass, name, type, flagsMods(IS_FIELD, 0, refKind));
764 initResolved(false);
765 }
766 /** Create a method or constructor name from the given components:
767 * Declaring class, name, type, reference kind.
768 * It will be a constructor if and only if the name is {@code "<init>"}.
769 * The declaring class may be supplied as null if this is to be a bare name and type.
770 * The last argument is optional, a boolean which requests REF_invokeSpecial.
771 * The resulting name will in an unresolved state.
772 */
773 public MemberName(Class<?> defClass, String name, MethodType type, byte refKind) {
774 int initFlags = CONSTRUCTOR_NAME.equals(name) ? IS_CONSTRUCTOR : IS_METHOD;
775 init(defClass, name, type, flagsMods(initFlags, 0, refKind));
776 initResolved(false);
777 }
778 /** Create a method, constructor, or field name from the given components:
779 * Reference kind, declaring class, name, type.
780 */
781 public MemberName(byte refKind, Class<?> defClass, String name, Object type) {
782 int kindFlags;
783 if (MethodHandleNatives.refKindIsField(refKind)) {
784 kindFlags = IS_FIELD;
785 if (!(type instanceof Class))
786 throw newIllegalArgumentException("not a field type");
787 } else if (MethodHandleNatives.refKindIsMethod(refKind)) {
788 kindFlags = IS_METHOD;
789 if (!(type instanceof MethodType))
790 throw newIllegalArgumentException("not a method type");
791 } else if (refKind == REF_newInvokeSpecial) {
792 kindFlags = IS_CONSTRUCTOR;
793 if (!(type instanceof MethodType) ||
794 !CONSTRUCTOR_NAME.equals(name))
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