Use def_path_hash_to_def_id when re-using a RawDefId#79915
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bors merged 1 commit intorust-lang:masterfrom Dec 11, 2020
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Use def_path_hash_to_def_id when re-using a RawDefId#79915bors merged 1 commit intorust-lang:masterfrom
def_path_hash_to_def_id when re-using a RawDefId#79915bors merged 1 commit intorust-lang:masterfrom
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Fixes rust-lang#79890 Previously, we just copied a `RawDefId` from the 'old' map to the 'new' map. However, the `RawDefId` for a given `DefPathHash` may be different in the current compilation session. Using `def_path_hash_to_def_id` ensures that the `RawDefId` we use is valid in the current session.
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r? @lcnr (rust-highfive has picked a reviewer for you, use r? to override) |
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don't know enough about this r? @petrochenkov maybe |
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@bors r+ |
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📌 Commit 3918b82 has been approved by |
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…sh, r=petrochenkov Use `def_path_hash_to_def_id` when re-using a `RawDefId` Fixes rust-lang#79890 Previously, we just copied a `RawDefId` from the 'old' map to the 'new' map. However, the `RawDefId` for a given `DefPathHash` may be different in the current compilation session. Using `def_path_hash_to_def_id` ensures that the `RawDefId` we use is valid in the current session.
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☀️ Test successful - checks-actions |
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Following up on #79721 this also seems to have performance issues (albeit with the clap benchmark showing improvement). |
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Given @wesleywiser's comment on #79721, it seems like regressions here are totally acceptable. |
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Fixes #79890
Previously, we just copied a
RawDefIdfrom the 'old' map to the 'new'map. However, the
RawDefIdfor a givenDefPathHashmay be differentin the current compilation session. Using
def_path_hash_to_def_idensures that the
RawDefIdwe use is valid in the current session.