rustc: [T, ..N] and [T, ..N+1] are not the same #14846
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This commit fixes a bug in the calculation of the hash of a type which didn't factor in the length of a constant-sized vector. As a result of this, a type placed into an Any of a fixed length could be peeled out with any other fixed length in a safe manner.
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I should've added a test for this, I believe @nick29581 reverted my previous fix. |
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Nov 13, 2023
Switch to in-tree rustc dependencies with a cfg flag We can use this flag to detect and prevent breakages in rustc CI. (see rust-lang#14846 and rust-lang#15569) ~The `IN_RUSTC_REPOSITORY` is just a placeholder. Is there any existing cfg flag that rustc CI sets?~
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This commit fixes a bug in the calculation of the hash of a type which didn't
factor in the length of a constant-sized vector. As a result of this, a type
placed into an Any of a fixed length could be peeled out with any other fixed
length in a safe manner.