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authorVadim Petrochenkov <vadim.petrochenkov@gmail.com>2023-01-21 18:38:14 +0400
committerVadim Petrochenkov <vadim.petrochenkov@gmail.com>2023-01-23 19:35:03 +0400
commit91fdbd73437aa53d1cc74faa41ae62951839f13a (patch)
tree550bdc64483ec0636f6cdfb88e446c509c96dcb3 /tests/codegen/src-hash-algorithm
parent5bef91c6e902f3bded724713bd2a64ea50abbd25 (diff)
downloadrust-91fdbd73437aa53d1cc74faa41ae62951839f13a.tar.gz
rust-91fdbd73437aa53d1cc74faa41ae62951839f13a.zip
rustc_metadata: Support non-`Option` nullable values in metadata tables
This is a convenience feature for cases in which "no value in the table" and "default value in the table" are equivalent.
Tables using `Table<DefIndex, ()>` are migrated in this PR, some other cases can be migrated later.

This helps `DocFlags` in https://github.com/rust-lang/rust/pull/107136 in particular.
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