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A standard library for the Gleam programming language

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gleam_stdlib src gleam@function.erl
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src/gleam@function.erl 

-module(gleam@function).

-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).



-export([flip/1, identity/1, tap/2]).



-if(?OTP_RELEASE >= 27).

-define(MODULEDOC(Str), -moduledoc(Str)).

-define(DOC(Str), -doc(Str)).

-else.

-define(MODULEDOC(Str), -compile([])).

-define(DOC(Str), -compile([])).

-endif.



-file("/Users/louis/src/gleam/stdlib/src/gleam/function.gleam", 4).

?DOC(

    " Takes a function that takes two arguments and returns a new function that\n"

    " takes the same two arguments, but in reverse order.\n"

).

-spec flip(fun((EEF, EEG) -> EEH)) -> fun((EEG, EEF) -> EEH).

flip(Fun) ->

    fun(B, A) -> Fun(A, B) end.



-file("/Users/louis/src/gleam/stdlib/src/gleam/function.gleam", 10).

?DOC(" Takes a single argument and always returns its input value.\n").

-spec identity(EEI) -> EEI.

identity(X) ->

    X.



-file("/Users/louis/src/gleam/stdlib/src/gleam/function.gleam", 19).

?DOC(

    " Takes an argument and a single function,\n"

    " calls that function with that argument\n"

    " and returns that argument instead of the function return value.\n"

    " Useful for running synchronous side effects in a pipeline.\n"

).

-spec tap(EEJ, fun((EEJ) -> any())) -> EEJ.

tap(Arg, Effect) ->

    Effect(Arg),

    Arg.