Ruby
3.4.0dev (2024-11-22 revision 37a72b0150ec36b4ea27175039afc28c62207b0c)
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Macros | |
#define | RB_OBJ_WRITE(old, slot, young) RBIMPL_CAST(rb_obj_write((VALUE)(old), (VALUE *)(slot), (VALUE)(young), __FILE__, __LINE__)) |
Declaration of a "back" pointer. More... | |
#define | RB_OBJ_WRITTEN(old, oldv, young) RBIMPL_CAST(rb_obj_written((VALUE)(old), (VALUE)(oldv), (VALUE)(young), __FILE__, __LINE__)) |
Identical to RB_OBJ_WRITE(), except it doesn't write any values, but only a WB declaration. More... | |
#define RB_OBJ_WRITE | ( | old, | |
slot, | |||
young | |||
) | RBIMPL_CAST(rb_obj_write((VALUE)(old), (VALUE *)(slot), (VALUE)(young), __FILE__, __LINE__)) |
Declaration of a "back" pointer.
This is a write barrier for new reference from "old" generation to "young" generation. It writes young
into *slot
, which is a pointer inside of old
.
[in] | old | An old object. |
[in] | slot | A pointer inside of old . |
[out] | young | A young object. |
#define RB_OBJ_WRITTEN | ( | old, | |
oldv, | |||
young | |||
) | RBIMPL_CAST(rb_obj_written((VALUE)(old), (VALUE)(oldv), (VALUE)(young), __FILE__, __LINE__)) |
Identical to RB_OBJ_WRITE(), except it doesn't write any values, but only a WB declaration.
oldv
is replaced value with b
(not used in current Ruby).
[in] | old | An old object. |
[in] | oldv | An object previously stored inside of old . |
[out] | young | A young object. |