ringabout f6651e6c70 fixes #26045; #26046; when nimvm leak push options (#26047) ...

fixes #26045; 
fixes #26046

The fix isolates compiler option state while semantically checking each
when nimvm branch.

compiler/semexprs.nim:2745 snapshots the option stack, compiler options,
diagnostics settings, and enabled features. It analyzes one branch and
restores that state in finally. Both the nimvm and else branches use
this function.

This prevents:

```nim
when nimvm:
  {.push overflowChecks: off.}
```

from disabling overflow checks in following runtime code. It also means
a {.pop.} in the opposite branch correctly reports that it has no
corresponding {.push.}.

2026-08-03 11:49:48 +02:00

..

t12517.nim

Fix #12517 Allow single branch when nimvm statements (#20577)

2022-10-17 08:01:53 +02:00

t19426.nim

fix #19426 compile error using when/elif/else and typedesc in template (#20550)

2022-10-21 09:26:46 +02:00

twhen_macro.nim

remove echo statements in tests (part 1) (#20178)

2022-08-23 19:28:51 +02:00

twhen_nimvm_push_pop.nim

fixes #26045; #26046; when nimvm leak push options (#26047)

2026-08-03 11:49:48 +02:00

twhen_nimvm_push.nim

fixes #26045; #26046; when nimvm leak push options (#26047)

2026-08-03 11:49:48 +02:00

twhen.nim

when statements branches exit early (#17143)

2021-02-22 12:27:23 +01:00