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Add more explanation to local DefPathHash collision case.

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This commit is contained in:
Michael Woerister 2021-02-04 11:01:52 +01:00
parent d4d8bdf52b
commit 97380e3b06
1 changed files with 8 additions and 1 deletions
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9
compiler/rustc_hir/src/definitions.rs
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@ -52,7 +52,14 @@ impl DefPathTable {
// Continuing with colliding DefPathHashes can lead to correctness
// issues. We must abort compilation.
panic!("Found DefPathHash collsion between {:?} and {:?}", def_path1, def_path2);
//
// The likelyhood of such a collision is very small, so actually
// running into one could be indicative of a poor hash function
// being used.
//
// See the documentation for DefPathHash for more information.
panic!("found DefPathHash collsion between {:?} and {:?}. \
Compilation cannot continue.", def_path1, def_path2);
}
// Assert that all DefPathHashes correctly contain the local crate's