fix bug in folding for constants #65181
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Didn't find any bugs here, but you really don't want these to fall out of sync.
Existing code could overlook types/substitutions that are embedded in (e.g.) an unevaluated constant.
In such a case, the `Infer` is converted to a `Bound`
Also, make `-Zverbose` dump all info about constants.
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Is there a small regression test we could add here? |
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I was wondering the same thing. The only way I observed this problem was in tandem with other changes that exposed it, but those changes can't be landed yet. |
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@oli-obk this was responsible for the debug assertions you were telling me about at RustConf |
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@bors r+ rollup |
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📌 Commit 08c0e84 has been approved by |
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…ush-1, r=varkor fix bug in folding for constants These was a bug in the folding for constants that caused it to overlook bound regions. This branch includes some other little things that I did while trying to track the bug down. r? @oli-obk
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Rollup of 8 pull requests Successful merges: - #64726 (rewrite documentation for unimplemented! to clarify use) - #65040 (syntax: more cleanups in item and function signature parsing) - #65046 (Make `Cell::new` method come first in documentation) - #65098 (Add long error explanation for E0561) - #65150 (Suggest dereferencing boolean reference when used in 'if' or 'while') - #65154 (Fix const generic arguments not displaying in types mismatch diagnostic) - #65181 (fix bug in folding for constants) - #65187 (use 'invalid argument' for vxWorks) Failed merges: - #65179 (Add long error explanation for E0567) r? @ghost
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These was a bug in the folding for constants that caused it to overlook bound regions. This branch includes some other little things that I did while trying to track the bug down.
r? @oli-obk