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bug#34999: Record special field abstraction leakage
From: |
Ludovic Courtès |
Subject: |
bug#34999: Record special field abstraction leakage |
Date: |
Tue, 26 Mar 2019 10:38:11 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
The changes I made in version-control.scm and gnucash.scm in commit
e6301fb76d0a8d931ece2e18d197e3c2cc53fc6c revealed an abstraction leakage
I wasn’t aware of: there’s a pattern where users “see” that thunked
fields are thunked:
(package
;; …
(inputs …)
(arguments `(foo bar ,(inputs) …))) ;<- here ‘inputs’ is seen as a thunk
Fortunately I could only find two occurrences of this and this use case
is more elegantly replaced by:
(package-inputs this-record)
… which also has better semantics. It’s remains a bug, though.
Ludo’.
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