10 lines
201 B
Nix
10 lines
201 B
Nix
# Tests that the rhs argument of op is not forced unconditionally
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let
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lst = builtins.foldl'
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(acc: x: acc ++ [ x ])
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[ ]
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[ 42 (throw "this shouldn't be evaluated") ];
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in
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builtins.head lst
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