Files
Nim/tests/vm/tconvaddr.nim
metagn 1fbb67ffe9 make distinct conversions addressable in VM (#24124)
fixes #24097

For `nkConv` addresses where the conversion is between 2 types that are
equal between backends, treat assignments the same as assignments to the
argument of the conversion. In the VM this seems to be in `genAsgn` and
`genAsgnPatch`, as evidenced by the special logic for `nkDerefExpr` etc.

This doesn't handle ranges after #24037 because `sameBackendType` is
used and not `sameBackendTypeIgnoreRange`. This is so this is
backportable without #24037 and another PR can be opened that implements
it for ranges and adds tests as well. We can also merge
`sameBackendTypeIgnoreRange` with `sameBackendType` since it doesn't
seem like anything that uses it would be affected (only cycle checks and
the VM), but then we still have to add tests.
2024-09-17 06:29:49 +02:00

50 lines
1.2 KiB
Nim

block: # issue #24097
type Foo = distinct int
proc foo(x: var Foo) =
int(x) += 1
proc bar(x: var int) =
x += 1
static:
var x = Foo(1)
int(x) = int(x) + 1
doAssert x.int == 2
int(x) += 1
doAssert x.int == 3
foo(x)
doAssert x.int == 4
bar(int(x)) # need vmgen flags propagated for this
doAssert x.int == 5
type Bar = object
x: Foo
static:
var obj = Bar(x: Foo(1))
int(obj.x) = int(obj.x) + 1
doAssert obj.x.int == 2
int(obj.x) += 1
doAssert obj.x.int == 3
foo(obj.x)
doAssert obj.x.int == 4
bar(int(obj.x)) # need vmgen flags propagated for this
doAssert obj.x.int == 5
static:
var arr = @[Foo(1)]
int(arr[0]) = int(arr[0]) + 1
doAssert arr[0].int == 2
int(arr[0]) += 1
doAssert arr[0].int == 3
foo(arr[0])
doAssert arr[0].int == 4
bar(int(arr[0])) # need vmgen flags propagated for this
doAssert arr[0].int == 5
proc testResult(): Foo =
result = Foo(1)
int(result) = int(result) + 1
doAssert result.int == 2
int(result) += 1
doAssert result.int == 3
foo(result)
doAssert result.int == 4
bar(int(result)) # need vmgen flags propagated for this
doAssert result.int == 5
doAssert testResult().int == 5