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New CLI flag --replace-eval-errors

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Co-authored-by: Farid Zakaria <farid.m.zakaria@gmail.com>
This commit is contained in:
Shahar "Dawn" Or 2025-05-12 18:44:07 +07:00
parent cdbe788c1f
commit 88705f848b
14 changed files with 93 additions and 20 deletions
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17
tests/functional/eval.sh
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@ -35,6 +35,23 @@ nix-instantiate --eval -E 'assert 1 + 2 == 3; true'
[[ $(nix-instantiate -A int --eval - < "./eval.nix") == 123 ]]
[[ "$(nix-instantiate --eval -E '{"assert"=1;bar=2;}')" == '{ "assert" = 1; bar = 2; }' ]]
expected="$(echo '{
"missingAttr":"«evaluation error»",
"insideAList":["«evaluation error»"],
"deeper":{v:"«evaluation error»"},
"failedAssertion":"«evaluation error»",
"missingFile":"«evaluation error»",
"missingImport":"«evaluation error»",
"outOfBounds":"«evaluation error»",
"failedCoersion":"«evaluation error»",
"failedAddition":"«evaluation error»"
}' | tr -d '\n')"
actual="$(nix-instantiate --eval --json --strict --replace-eval-errors "./replace-eval-errors.nix")"
[[ $actual == "$expected" ]] || diff --unified <(echo "$actual") <(echo "$expected") >&2
actual="$(nix eval --json --replace-eval-errors -f "./replace-eval-errors.nix")"
[[ $actual == "$expected" ]] || diff --unified <(echo "$actual") <(echo "$expected") >&2
# Check that symlink cycles don't cause a hang.
ln -sfn cycle.nix "$TEST_ROOT/cycle.nix"
(! nix eval --file "$TEST_ROOT/cycle.nix")