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libexpr: add list index to deepSeq error traces

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When deepSeq encounters an error while evaluating a list element, the
error trace now includes the list index, making it easier to locate
the problematic element.
This commit is contained in:
Robert Hensing 2025-11-21 23:51:07 +01:00
parent 59a566db13
commit a812b6c6e6
3 changed files with 43 additions and 1 deletions
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10
tests/functional/lang/eval-fail-deepseq-list-attr.nix Normal file
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@ -0,0 +1,10 @@
# Test that deepSeq reports list index and attribute name in error traces.
builtins.deepSeq [
1
{
a = 2;
b = throw "error in attr in list element";
}
3
] "unexpected success"