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feat(tvix/eval): Support builtins.getAttr

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Support looking-up values from attrsets by their keys.

Change-Id: Ib37a472a511dab145f99ebc849879b3494e8e89f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6554
Reviewed-by: wpcarro <wpcarro@gmail.com>
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: wpcarro <wpcarro@gmail.com>
Tested-by: BuildkiteCI
This commit is contained in:
William Carroll 2022-09-06 14:20:14 -07:00 • committed by clbot
parent 059f4b964f
commit 61cce49a8a
3 changed files with 18 additions and 0 deletions
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1
tvix/eval/src/tests/tvix_tests/eval-okay-builtins-getattr.exp Normal file
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@ -0,0 +1 @@
[ 1 2 3 { bar = { baz = 3; }; } ]

6
tvix/eval/src/tests/tvix_tests/eval-okay-builtins-getattr.nix Normal file
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[
(builtins.getAttr "foo" { foo = 1; bar = 2; baz = 3; })
(builtins.getAttr "bar" { foo = 1; bar = 2; baz = 3; })
(builtins.getAttr "baz" { foo = 1; bar = 2; baz = 3; })
(builtins.getAttr "foo" { foo = { bar = { baz = 3; }; }; })
]