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Remove HashType::Unknown

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Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
This commit is contained in:
John Ericson 2020-06-02 15:52:13 +00:00
parent 6dd471ebf6
commit 450dcf2c1b
14 changed files with 72 additions and 53 deletions
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2
src/libstore/derivations.cc
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@ -20,8 +20,6 @@ void DerivationOutput::parseHashInfo(FileIngestionMethod & recursive, Hash & has
}
HashType hashType = parseHashType(algo);
if (hashType == HashType::Unknown)
throw Error("unknown hash algorithm '%s'", algo);
hash = Hash(this->hash, hashType);
}