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fix(check): a Math.* call has the type the emitter gives it

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Math.max, Math.sqrt and the rest (and the bare min/max/abs/clamp) are computed inline by the
emitter, and L4 gave each the unknown type, which agrees with everything: Maroon Lake's trail
put Math.max(5, n) into Notify's string field a1 and it failed in LLVM ("%t63 defined with type
i32 but expected ptr"). It was never about two dispatches on a line - one is enough. The checker
now mirrors the emitter: a float/double first argument gives that type (sign an int); otherwise
min/max/abs/clamp keep the first argument's type, sign/floor/ceil/round/posmod/wrap/ping_pong are
ints, the rest fixed. Named arguments or an argument it cannot type leave it unknown.

rejected/math_into_text is the case. Reseeded.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 14:12:28 +03:00
parent e6729b3123
commit 8e113f749a
6 changed files with 13780 additions and 12630 deletions
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10
changes/math-result-types.md Normal file
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bump: patch
type: fix
**A `Math.*` call has a type the checker knows.** `Math.max`, `Math.sqrt` and the rest are computed
inline by the emitter, and the checker gave every one of them the unknown type, which agrees with
everything - so `dispatch Notify { a1: Math.max(5, n) }` put an int into a string field, passed L4
and failed in LLVM (`%t63 defined with type i32 but expected ptr`). The checker now gives each the
type the emitter does: a float or double first argument is that type (`sign` an int); otherwise
`min`, `max`, `abs` and `clamp` keep the first argument's type, `sign`, `floor`, `ceil`, `round`,
`posmod`, `wrap` and `ping_pong` are ints and the rest fixed. The bare `min` / `max` / `abs` /
`clamp` builtins the same. Where the arguments cannot be told, the result stays unknown.