coolguy
d5ba699744
The host gate accepted a WATCOM environment override and skipped when nothing was found. Both are wrong for what it is: a system-wide Open Watcom is a different version reporting different diagnostics, and a gate that skips is a gate that is not running, which is the exact shape of the problem this file was added to close. It now uses .dosboxx/watcom only and fails with the setup command when that is absent, matching how dosboxx.py already behaves. Nothing else in the project reaches for a system install: the DOS session sets WATCOM=W: before calling BUILD.BAT, so the C:\DEVEL\WATCOMC fallback inside it is unreachable. fec/test-dos.bat was tracked but dead -- the runner generates RUN.BAT and only copies build-dos.bat -- so it goes, along with the comment claiming it drives the build and the three fixture READMEs that still pointed at it. The registry decides what runs now. (.qemu/ is untracked local debris from the same era and is left alone.)
27 lines
2.0 KiB
Markdown
27 lines
2.0 KiB
Markdown
# M8 fixtures
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M8 is the first multi-unit milestone, so cases live in subdirectories. Each case is compiled separately with that directory on the import path.
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Pass cases:
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- `basic`: public function across units.
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- `pubfld`: public type and public field across units.
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- `dotted` and `alias`: canonical dotted unit paths, last-segment binding, and explicit import aliases.
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- `dotpriv`: a dotted unit prefix does not grant access to another unit's private declarations.
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- `errsame`: two units use the same anonymous `error.Name`; the driver must assign one deterministic `core.Error` code.
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- `errdet`: the same anonymous error-name set appears in a different source/import order; generated `fe_errors.h` must be byte-identical to `errsame` modulo the intentionally different unit graph.
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Fail cases:
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- `privfn`: private declaration access.
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- `privfld`: private field access.
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- `missing`: unresolved import.
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- `cycle`: cyclic imports.
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- `unitbad`: filename/unit-name mismatch.
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- `badupper` and `badlong`: DOS-safe lowercase, eight-character unit-segment limit.
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- `bindconf`: two imports with the same last-segment binding require an alias.
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- `pubpriv`: a public signature cannot expose a private nominal type.
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- `errnom`: nominal error cannot flow into `core.Error` via `try`.
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They are not registered in `src/ferrolang_vm/registry.py` yet. M8 should add procedural checks for `.fei` creation/hash invalidation and deterministic `fe_errors.h` using these fixtures.
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The M8 DOS gate must additionally construct two separate `-I` roots containing the same canonical unit and require an ambiguity error; repeat the case with two paths to the same canonical file and require deduplication. It must also verify that `std.*` resolves only from the built-in std root, ordinary user units never do, and that changing a private non-generic implementation preserves the dependent interface-cache hit. Those checks need temporary roots/cache inspection and deliberately remain procedural rather than encoding host paths in fixtures.
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