commit | f94fa62d69faf5bd63b3772d3ec4f0c76cf2db57 | [log] [tgz] |
---|---|---|
author | bors <bors@rust-lang.org> | Sun May 29 08:45:15 2022 +0000 |
committer | bors <bors@rust-lang.org> | Sun May 29 08:45:15 2022 +0000 |
tree | 8981372169c9dfa5dcc6c6025af06d7e2a282d10 | |
parent | 6c9fc4fec2193ebfa7ed7eb163b6eea925b56f7b [diff] | |
parent | be2fa2b31b9e6b01ed96f41061a231ea45a54216 [diff] |
Auto merge of #12409 - lowr:fix/usize-overflow, r=Veykril fix overflow during type inference for tuple struct patterns The following code causes integer overflow during type inference for (malformed) tuple struct patterns. ```rust struct S(usize); let S(.., a, b) = S(1); ``` It has been panicking only in debug builds, and working in a way in release builds but it was inconsistent with type inference for tuple patterns: ```rust struct S(usize); let S(.., a, b) = S(1); // a -> unknown, b -> usize let (.., a, b) = (1,); // a -> usize, b -> unknown ``` With this PR, the overflow no longer happens by utilizing `saturating_sub()` like in other places and type inference for tuple struct patterns is in line with that for tuple patterns.
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