Files
ww/test/wcc/data/globalconst_slice_widen/case.ww
Hojun-Cho c421c2b20a cgen: key the str/slice arg recognizers off the checker stamp
The wwstage nodeisstr/nodeisslice recognizers were name-keyed for
every non-local shape: an indirect fn-pointer callee ((*f)() — the
errnotest #59.5 divergence, streq receiving a shifted register file)
and module-global let/const idents (path.sepstr — union-widen pushes
zero-filled len/cap) both fell to false while cstage keys off the
checker stamp unconditionally. Both recognizers now fall back to the
stamped n.type_; push and pop sites share them, so the drain stays
balanced by construction. Graduates the #59.5 errnotest pin.
2026-08-08 00:58:04 +09:00

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//ww:run
// A module-global const []u8 widened into a tagged-union call arg —
// the slice twin of globalconst_str_widen (path's const dot/dotdot
// shape).
package main;
const gb: []u8 = ['x', 'y', 'z'];
fn f(x: ([]u8 | i32)) i32 = {
match (x) {
case let s: []u8 => {
if (len(s) != 3) { return 1; };
if (s[2] != 122u8) { return 2; };
return 0;
};
case let v: i32 => { return 3; };
};
return 4;
};
fn main() i32 = {
return f(gb);
};