e8cc9d03de
The stateless alias-registration array-dim path collapsed foldDimU32's distinct .too_large / .below_min outcomes into null, so an oversized type alias (Big :: [5000000000]s64) emitted the FALSE 'an array dimension is not a compile-time integer constant' message while the direct form correctly reported 'array dimension 5000000000 does not fit in u32'. Add program_index.reportDimError as the single source of dim-error wording (the stateful path now emits through it too) and type_bridge.foldArrayDim to surface the DimU32 reason at the alias-registration site. An oversized/negative alias dim now routes to reportDimError for the same precise message as the direct form; a genuinely non-const alias dim keeps the alias-specific message. Regression: examples/1131-diagnostics-array-dim-oversized-u32-alias.sx
25 lines
1.1 KiB
Plaintext
25 lines
1.1 KiB
Plaintext
// An array dimension that folds to a valid compile-time integer but exceeds a
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// `u32` is a hard error — and it must report the SAME precise diagnostic whether
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// the array is written directly (`a : [5_000_000_000]s64`, see example 1130) or
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// behind a type ALIAS (`Big :: [5_000_000_000]s64`, here). Both forms now route
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// the dimension through one shared folder + one shared message map, so they
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// cannot diverge.
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//
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// Regression (issue 0083 / F0.4 attempt 7): the stateless alias-registration
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// path collapsed `foldDimU32`'s distinct `.too_large` outcome into `null` and
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// emitted ONE generic "an array dimension is not a compile-time integer
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// constant" message — FALSE, since 5_000_000_000 IS a compile-time integer
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// constant; it merely doesn't fit a `u32`. The alias path now consults the
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// shared fold and emits the precise "does not fit in u32" message, matching the
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// direct form. (A genuinely non-const alias dim still gets the generic message —
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// see example 1129.)
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#import "modules/std.sx";
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Big :: [5000000000]s64;
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main :: () {
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a : Big = ---;
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a[0] = 7;
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print("unreachable: {}\n", a[0]);
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}
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