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gleam_stdlib

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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).



-export([compose/2, curry2/1, curry3/1, curry4/1, curry5/1, curry6/1, flip/1, identity/1, constant/1]).



-spec compose(fun((ANK) -> ANL), fun((ANL) -> ANM)) -> fun((ANK) -> ANM).

compose(Fun1, Fun2) ->

    fun(A) -> Fun2(Fun1(A)) end.



-spec curry2(fun((ANN, ANO) -> ANP)) -> fun((ANN) -> fun((ANO) -> ANP)).

curry2(Fun) ->

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



-spec curry3(fun((ANR, ANS, ANT) -> ANU)) -> fun((ANR) -> fun((ANS) -> fun((ANT) -> ANU))).

curry3(Fun) ->

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



-spec curry4(fun((ANW, ANX, ANY, ANZ) -> AOA)) -> fun((ANW) -> fun((ANX) -> fun((ANY) -> fun((ANZ) -> AOA)))).

curry4(Fun) ->

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



-spec curry5(fun((AOC, AOD, AOE, AOF, AOG) -> AOH)) -> fun((AOC) -> fun((AOD) -> fun((AOE) -> fun((AOF) -> fun((AOG) -> AOH))))).

curry5(Fun) ->

    fun(A) ->

        fun(B) ->

            fun(C) -> fun(D) -> fun(E) -> Fun(A, B, C, D, E) end end end

        end

    end.



-spec curry6(fun((AOJ, AOK, AOL, AOM, AON, AOO) -> AOP)) -> fun((AOJ) -> fun((AOK) -> fun((AOL) -> fun((AOM) -> fun((AON) -> fun((AOO) -> AOP)))))).

curry6(Fun) ->

    fun(A) ->

        fun(B) ->

            fun(C) ->

                fun(D) -> fun(E) -> fun(F) -> Fun(A, B, C, D, E, F) end end end

            end

        end

    end.



-spec flip(fun((AOR, AOS) -> AOT)) -> fun((AOS, AOR) -> AOT).

flip(Fun) ->

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



-spec identity(AOU) -> AOU.

identity(X) ->

    X.



-spec constant(AOV) -> fun((any()) -> AOV).

constant(Value) ->

    fun(_) -> Value end.