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author | Louis Pilfold <louis@lpil.uk> | 2019-05-29 21:02:55 +0100 |
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committer | Louis Pilfold <louis@lpil.uk> | 2019-06-02 21:12:59 +0100 |
commit | 5a1f3494eb9517a7b7a332cb74dd10a6a7d32d31 (patch) | |
tree | 5d0d281c66cf71c6e3ca880e6621138a71b95e7b /gen/src/std@tuple.erl | |
parent | ee03f5a0465e176e220060164a5ffc408f73ed0d (diff) | |
download | gleam_stdlib-5a1f3494eb9517a7b7a332cb74dd10a6a7d32d31.tar.gz gleam_stdlib-5a1f3494eb9517a7b7a332cb74dd10a6a7d32d31.zip |
Enable namespaced modules
Diffstat (limited to 'gen/src/std@tuple.erl')
-rw-r--r-- | gen/src/std@tuple.erl | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gen/src/std@tuple.erl b/gen/src/std@tuple.erl new file mode 100644 index 0000000..0c9e89d --- /dev/null +++ b/gen/src/std@tuple.erl @@ -0,0 +1,28 @@ +-module(std@tuple). +-compile(no_auto_import). + +-export([new/2, first/1, second/1, swap/1, fetch/2]). + +new(A, B) -> + {A, B}. + +first(Tup) -> + {A, _} = Tup, + A. + +second(Tup) -> + {_, A} = Tup, + A. + +swap(Tup) -> + {A, B} = Tup, + {B, A}. + +fetch(Haystack, Needle) -> + std@list:find(Haystack, fun(Tuple) -> case first(Tuple) =:= Needle of + true -> + {ok, second(Tuple)}; + + false -> + {error, []} + end end). |