diff options
Diffstat (limited to 'third_party/nix/tests/lang/eval-okay-listtoattrs.nix')
| -rw-r--r-- | third_party/nix/tests/lang/eval-okay-listtoattrs.nix | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/third_party/nix/tests/lang/eval-okay-listtoattrs.nix b/third_party/nix/tests/lang/eval-okay-listtoattrs.nix new file mode 100644 index 000000000000..4186e029b538 --- /dev/null +++ b/third_party/nix/tests/lang/eval-okay-listtoattrs.nix @@ -0,0 +1,11 @@ +# this test shows how to use listToAttrs and that evaluation is still lazy (throw isn't called) +with import ./lib.nix; + +let + asi = name: value : { inherit name value; }; + list = [ ( asi "a" "A" ) ( asi "b" "B" ) ]; + a = builtins.listToAttrs list; + b = builtins.listToAttrs ( list ++ list ); + r = builtins.listToAttrs [ (asi "result" [ a b ]) ( asi "throw" (throw "this should not be thrown")) ]; + x = builtins.listToAttrs [ (asi "foo" "bar") (asi "foo" "bla") ]; +in concat (map (x: x.a) r.result) + x.foo |