479 return mark_raw().displaced_mark_helper();
480 }
481
482 void oopDesc::set_displaced_mark_raw(markWord m) {
483 mark_raw().set_displaced_mark_helper(m);
484 }
485
486 // Supports deferred calling of obj->klass().
487 class DeferredObjectToKlass {
488 const oopDesc* _obj;
489
490 public:
491 DeferredObjectToKlass(const oopDesc* obj) : _obj(obj) {}
492
493 // Implicitly convertible to const Klass*.
494 operator const Klass*() const {
495 return _obj->klass();
496 }
497 };
498
499 bool oopDesc::mark_must_be_preserved(markWord m) const {
500 // There's a circular dependency between oop.inline.hpp and
501 // markWord.inline.hpp because markWord::must_be_preserved wants to call
502 // oopDesc::klass(). This could be solved by calling klass() here. However,
503 // not all paths inside must_be_preserved calls klass(). Defer the call until
504 // the klass is actually needed.
505 return m.must_be_preserved(DeferredObjectToKlass(this));
506 }
507
508 bool oopDesc::mark_must_be_preserved_for_promotion_failure(markWord m) const {
509 return m.must_be_preserved_for_promotion_failure(DeferredObjectToKlass(this));
510 }
511
512 #endif // SHARE_OOPS_OOP_INLINE_HPP
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479 return mark_raw().displaced_mark_helper();
480 }
481
482 void oopDesc::set_displaced_mark_raw(markWord m) {
483 mark_raw().set_displaced_mark_helper(m);
484 }
485
486 // Supports deferred calling of obj->klass().
487 class DeferredObjectToKlass {
488 const oopDesc* _obj;
489
490 public:
491 DeferredObjectToKlass(const oopDesc* obj) : _obj(obj) {}
492
493 // Implicitly convertible to const Klass*.
494 operator const Klass*() const {
495 return _obj->klass();
496 }
497 };
498
499 bool oopDesc::mark_must_be_preserved() const {
500 return mark_must_be_preserved(mark_raw());
501 }
502
503 bool oopDesc::mark_must_be_preserved(markWord m) const {
504 // There's a circular dependency between oop.inline.hpp and
505 // markWord.inline.hpp because markWord::must_be_preserved wants to call
506 // oopDesc::klass(). This could be solved by calling klass() here. However,
507 // not all paths inside must_be_preserved calls klass(). Defer the call until
508 // the klass is actually needed.
509 return m.must_be_preserved(DeferredObjectToKlass(this));
510 }
511
512 bool oopDesc::mark_must_be_preserved_for_promotion_failure(markWord m) const {
513 return m.must_be_preserved_for_promotion_failure(DeferredObjectToKlass(this));
514 }
515
516 #endif // SHARE_OOPS_OOP_INLINE_HPP
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