Thanks. But I'm still under the impression that `d.s = "abc"` increases the ref
count of `"abc"`. If I understand correctly `d.s = "abc"` will lead to the
execution of the following function:
proc unsureAsgnRef(dest: PPointer, src: pointer) {.compilerProc.} =
# unsureAsgnRef updates the reference counters only if dest is not on
the
# stack. It is used by the code generator if it cannot decide wether a
# reference is in the stack or not (this can happen for var parameters).
if not isOnStack(dest):
if src != nil: incRef(usrToCell(src))
# XXX finally use assembler for the stack checking instead!
# the test for '!= nil' is correct, but I got tired of the segfaults
# resulting from the crappy stack checking:
if cast[int](dest[]) >=% PageSize: decRef(usrToCell(dest[]))
else:
# can't be an interior pointer if it's a stack location!
gcAssert(interiorAllocatedPtr(gch.region, dest) == nil,
"stack loc AND interior pointer")
dest[] = src
Run
`dest` not on stack and `src` is not nil, so ref is increased?
