438 /** Utility method to query the modifier flags of this member. */
439 public boolean isVolatile() {
440 return Modifier.isVolatile(flags);
441 }
442 /** Utility method to query the modifier flags of this member. */
443 public boolean isAbstract() {
444 return Modifier.isAbstract(flags);
445 }
446 /** Utility method to query the modifier flags of this member. */
447 public boolean isNative() {
448 return Modifier.isNative(flags);
449 }
450 // let the rest (native, volatile, transient, etc.) be tested via Modifier.isFoo
451
452 // unofficial modifier flags, used by HotSpot:
453 static final int BRIDGE = 0x00000040;
454 static final int VARARGS = 0x00000080;
455 static final int SYNTHETIC = 0x00001000;
456 static final int ANNOTATION = 0x00002000;
457 static final int ENUM = 0x00004000;
458 static final int FLATTENABLE = 0x00000100;
459 static final int FLATTENED = 0x00008000;
460
461 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
462 public boolean isBridge() {
463 return testAllFlags(IS_METHOD | BRIDGE);
464 }
465 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
466 public boolean isVarargs() {
467 return testAllFlags(VARARGS) && isInvocable();
468 }
469 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
470 public boolean isSynthetic() {
471 return testAllFlags(SYNTHETIC);
472 }
473
474 /*
475 * Query whether this member is a flattenable field.
476 *
477 * A flattenable field whose type must be of value class with ACC_FLATTENABLE flag set.
478 * A field of value type may or may not be flattenable.
479 */
480 public boolean isFlattenable() { return (flags & FLATTENABLE) == FLATTENABLE; }
481
482 /** Query whether this member is a flat value field */
483 public boolean isFlatValue() { return (flags & FLATTENED) == FLATTENED; }
484
485 /** Query whether this member can be assigned to null. */
486 public boolean canBeNull() { return !isFlattenable(); }
487
488 static final String CONSTRUCTOR_NAME = "<init>"; // the ever-popular
489
490 // modifiers exported by the JVM:
491 static final int RECOGNIZED_MODIFIERS = 0xFFFF;
492
493 // private flags, not part of RECOGNIZED_MODIFIERS:
494 static final int
495 IS_METHOD = MN_IS_METHOD, // method (not constructor)
496 IS_CONSTRUCTOR = MN_IS_CONSTRUCTOR, // constructor
497 IS_FIELD = MN_IS_FIELD, // field
498 IS_TYPE = MN_IS_TYPE, // nested type
499 CALLER_SENSITIVE = MN_CALLER_SENSITIVE; // @CallerSensitive annotation detected
500
501 static final int ALL_ACCESS = Modifier.PUBLIC | Modifier.PRIVATE | Modifier.PROTECTED;
502 static final int ALL_KINDS = IS_METHOD | IS_CONSTRUCTOR | IS_FIELD | IS_TYPE;
503 static final int IS_INVOCABLE = IS_METHOD | IS_CONSTRUCTOR;
504 static final int IS_FIELD_OR_METHOD = IS_METHOD | IS_FIELD;
505 static final int SEARCH_ALL_SUPERS = MN_SEARCH_SUPERCLASSES | MN_SEARCH_INTERFACES;
506
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438 /** Utility method to query the modifier flags of this member. */
439 public boolean isVolatile() {
440 return Modifier.isVolatile(flags);
441 }
442 /** Utility method to query the modifier flags of this member. */
443 public boolean isAbstract() {
444 return Modifier.isAbstract(flags);
445 }
446 /** Utility method to query the modifier flags of this member. */
447 public boolean isNative() {
448 return Modifier.isNative(flags);
449 }
450 // let the rest (native, volatile, transient, etc.) be tested via Modifier.isFoo
451
452 // unofficial modifier flags, used by HotSpot:
453 static final int BRIDGE = 0x00000040;
454 static final int VARARGS = 0x00000080;
455 static final int SYNTHETIC = 0x00001000;
456 static final int ANNOTATION = 0x00002000;
457 static final int ENUM = 0x00004000;
458 static final int FLATTENED = 0x00008000;
459
460 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
461 public boolean isBridge() {
462 return testAllFlags(IS_METHOD | BRIDGE);
463 }
464 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
465 public boolean isVarargs() {
466 return testAllFlags(VARARGS) && isInvocable();
467 }
468 /** Utility method to query the modifier flags of this member; returns false if the member is not a method. */
469 public boolean isSynthetic() {
470 return testAllFlags(SYNTHETIC);
471 }
472
473 /** Query whether this member is a flattened field */
474 public boolean isFlattened() { return (flags & FLATTENED) == FLATTENED; }
475
476 /** Query whether this member can be assigned to null. */
477 public boolean canBeNull() {
478 if (isField()) {
479 Class<?> type = getFieldType();
480 return type == type.asBoxType();
481 }
482 return false;
483 }
484
485 static final String CONSTRUCTOR_NAME = "<init>"; // the ever-popular
486
487 // modifiers exported by the JVM:
488 static final int RECOGNIZED_MODIFIERS = 0xFFFF;
489
490 // private flags, not part of RECOGNIZED_MODIFIERS:
491 static final int
492 IS_METHOD = MN_IS_METHOD, // method (not constructor)
493 IS_CONSTRUCTOR = MN_IS_CONSTRUCTOR, // constructor
494 IS_FIELD = MN_IS_FIELD, // field
495 IS_TYPE = MN_IS_TYPE, // nested type
496 CALLER_SENSITIVE = MN_CALLER_SENSITIVE; // @CallerSensitive annotation detected
497
498 static final int ALL_ACCESS = Modifier.PUBLIC | Modifier.PRIVATE | Modifier.PROTECTED;
499 static final int ALL_KINDS = IS_METHOD | IS_CONSTRUCTOR | IS_FIELD | IS_TYPE;
500 static final int IS_INVOCABLE = IS_METHOD | IS_CONSTRUCTOR;
501 static final int IS_FIELD_OR_METHOD = IS_METHOD | IS_FIELD;
502 static final int SEARCH_ALL_SUPERS = MN_SEARCH_SUPERCLASSES | MN_SEARCH_INTERFACES;
503
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