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doslang-mirror/fec/tests/m7/README.md
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2026-08-16 21:57:34 +09:00

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# M7 fixtures
M7 adds optionals and error unions on top of the M6 ownership model.
`ok*.fe` must compile. `bad*.fe` must fail according to the first-line error marker.
The branch-level `m7-smoke` workflow builds the compiler as C89 and checks every M7 pass/fail fixture. Formal regression remains the FreeDOS/Open Watcom path.
Coverage: contextual `null`, `?T`, `.?`, `Some`/`None` pattern-only non-destructive views, `mem.replace` extraction, lazy `orelse`/`catch`, nominal error unions, `try`, block/short `catch`, and error code/name uniqueness, plus R4/R7 interactions with optional references/owners.