0bc8005b99
In type position (T) is a 1-tuple (specs.md:843), so ?(?i64) is optional(tuple(?i64)); assigning a bare ?i64 had coerceToType classify .none and pass the value through, then optionalWrap built a corrupt insertvalue that aborted the LLVM verifier. After coercing toward an optional's child, verify the coerced type equals the child type (stmt.zig decl-init + coerce.zig .optional_wrap); on mismatch emit a located diagnostic (tuple-specific note only when the child is a tuple). formatTypeName now renders tuples as (x: i64, y: i64). Regressions: optionals/0911 (nested optional via alias, round-trip), diagnostics/1195 (the mismatch diagnostic). Updated diagnostics/1101 + protocols/0414 goldens for the improved tuple type-name rendering. Verified by 3 adversarial reviews. Filed adjacent bug 0171 (?any child not canonicalized).
8 lines
183 B
Plaintext
8 lines
183 B
Plaintext
// Out-of-range tuple index produces a clear
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// `error: field 'N' not found on type '(i64, i64)'` diagnostic and exit 1.
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main :: () -> i32 {
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t := (10, 20);
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return xx t.42;
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}
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