Generalize isFixedOutput in preparation for CA drvs
#3418
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Today's fixed output derivations and regular derivations differ in a few ways which are largely orthogonal. This replaces `isFixedOutput` with a `type` that returns an enum of possible combinations.
edolstra
reviewed
Mar 16, 2020
asymmetric
reviewed
Mar 16, 2020
Thanks @asymmetric! Co-Authored-By: asymmetric <lorenzo@mailbox.org>
Thanks @asymmetric I failed to do them all in one batch Co-Authored-By: asymmetric <lorenzo@mailbox.org>
thufschmitt
reviewed
Jun 3, 2020
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@regnat Thanks for the review, should all be fixed now. |
When we merge with master, the new lack of string types make this case impossible (after parsing). Later, when we actually implemenent CA-derivations, we'll change the types to allow that.
edolstra
reviewed
Jul 28, 2020
src/libstore/derivations.cc
Outdated
| }; | ||
| // Since enums can have non-variant values, but making a `default:` would | ||
| // disable exhaustiveness warnings. | ||
| abort(); |
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Could you change this to assert(false)? That way, if we ever hit this assertion, we get an error message with location info.
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There's a merge conflict in derivations.cc. |
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Today's fixed output derivations and regular derivations differ in a few
ways which are largely orthogonal. This replaces
isFixedOutputwith atypethat returns an enum of possible combinations.I think this is basically a tech debt PR --- our plans could change a lot but it's still nice to decompose
isFixedOutputto make the code, especiallybuild.cceasier to read.CC @regnat @edolstra