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Merge pull request #10592 from hercules-ci/builtins-warn

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Add `builtins.warn`
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Eelco Dolstra 2024-06-03 17:16:32 +02:00 • committed by GitHub
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11 changed files with 173 additions and 22 deletions
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9
tests/functional/lang.sh
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@ -36,6 +36,15 @@ nix-instantiate --eval -E 'let x = builtins.trace { x = x; } true; in x' \
nix-instantiate --eval -E 'let x = { repeating = x; tracing = builtins.trace x true; }; in x.tracing'\
2>&1 | grepQuiet -F 'trace: { repeating = «repeated»; tracing = «potential infinite recursion»; }'
nix-instantiate --eval -E 'builtins.warn "Hello" 123' 2>&1 | grepQuiet 'warning: Hello'
nix-instantiate --eval -E 'builtins.addErrorContext "while doing ${"something"} interesting" (builtins.warn "Hello" 123)' 2>/dev/null | grepQuiet 123
# warn does not accept non-strings for now
expectStderr 1 nix-instantiate --eval -E 'let x = builtins.warn { x = x; } true; in x' \
| grepQuiet "expected a string but found a set"
expectStderr 1 nix-instantiate --eval --abort-on-warn -E 'builtins.warn "Hello" 123' | grepQuiet Hello
NIX_ABORT_ON_WARN=1 expectStderr 1 nix-instantiate --eval -E 'builtins.addErrorContext "while doing ${"something"} interesting" (builtins.warn "Hello" 123)' | grepQuiet "while doing something interesting"
set +x
badDiff=0