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Diffstat (limited to 'tests/lang/eval-okay-foldlStrict-lazy-elements.nix')
| -rw-r--r-- | tests/lang/eval-okay-foldlStrict-lazy-elements.nix | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tests/lang/eval-okay-foldlStrict-lazy-elements.nix b/tests/lang/eval-okay-foldlStrict-lazy-elements.nix new file mode 100644 index 000000000..c666e07f3 --- /dev/null +++ b/tests/lang/eval-okay-foldlStrict-lazy-elements.nix @@ -0,0 +1,9 @@ +# Tests that the rhs argument of op is not forced unconditionally +let + lst = builtins.foldl' + (acc: x: acc ++ [ x ]) + [ ] + [ 42 (throw "this shouldn't be evaluated") ]; +in + +builtins.head lst |