Packages

gleam_stdlib

0.33.1
1.0.3 1.0.2 1.0.1 1.0.0 0.71.0 0.70.0 0.69.0 0.68.1 0.68.0 0.67.1 0.67.0 0.65.0 0.64.0 0.63.2 0.63.1 0.63.0 0.62.1 0.62.0 0.61.0 0.60.0 0.59.0 0.58.0 0.57.0 0.56.0 0.55.0 0.54.0 0.53.0 0.52.0 0.51.0 0.50.0 0.49.0 0.48.0 0.47.0 0.46.0 0.45.0 0.44.0 0.43.0 0.42.0 0.41.0 0.40.0 0.39.0 0.38.0 0.37.0 0.36.0 0.35.1 0.35.0 0.34.0 0.33.1 0.33.0 0.32.1 0.32.0 0.31.0 0.30.2 0.30.1 0.30.0 0.29.2 0.29.1 0.29.0 0.28.2 0.28.1 0.28.0 0.27.0 0.26.1 0.26.0 0.25.0 0.24.0 0.23.0 0.22.3 0.22.2 0.22.1 0.22.0 0.21.0 0.20.0 0.19.3 0.19.2 0.19.1 0.19.0 0.18.1 0.18.0 0.18.0-rc1 0.17.1 0.17.0 0.16.0 0.15.0 0.14.0 0.13.0 0.12.0 0.11.0 0.10.1 0.10.0 0.9.0 0.8.0 0.7.0 0.6.0 0.5.0 0.4.0 0.4.0-rc1 0.3.1 0.3.0 0.2.0 retired

A standard library for the Gleam programming language

HexDocs

Current section

Files

Jump to
Readme
100 Versions
0 Dependencies
1566 Dependants
Files
Activity
gleam_stdlib src gleam@dict.erl
Raw

src/gleam@dict.erl 

-module(gleam@dict).

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



-export([size/1, to_list/1, from_list/1, has_key/2, new/0, get/2, insert/3, map_values/2, keys/1, values/1, filter/2, take/2, merge/2, delete/2, drop/2, update/3, fold/3]).

-export_type([dict/2]).



-type dict(NP, NQ) :: any() | {gleam_phantom, NP, NQ}.



-spec size(dict(any(), any())) -> integer().

size(Dict) ->

    maps:size(Dict).



-spec to_list(dict(NZ, OA)) -> list({NZ, OA}).

to_list(Dict) ->

    maps:to_list(Dict).



-spec from_list(list({OJ, OK})) -> dict(OJ, OK).

from_list(List) ->

    maps:from_list(List).



-spec has_key(dict(OT, any()), OT) -> boolean().

has_key(Dict, Key) ->

    maps:is_key(Key, Dict).



-spec new() -> dict(any(), any()).

new() ->

    maps:new().



-spec get(dict(PJ, PK), PJ) -> {ok, PK} | {error, nil}.

get(From, Get) ->

    gleam_stdlib:map_get(From, Get).



-spec insert(dict(PV, PW), PV, PW) -> dict(PV, PW).

insert(Dict, Key, Value) ->

    maps:put(Key, Value, Dict).



-spec map_values(dict(QH, QI), fun((QH, QI) -> QL)) -> dict(QH, QL).

map_values(Dict, Fun) ->

    maps:map(Fun, Dict).



-spec keys(dict(QV, any())) -> list(QV).

keys(Dict) ->

    maps:keys(Dict).



-spec values(dict(any(), RG)) -> list(RG).

values(Dict) ->

    maps:values(Dict).



-spec filter(dict(RP, RQ), fun((RP, RQ) -> boolean())) -> dict(RP, RQ).

filter(Dict, Predicate) ->

    maps:filter(Predicate, Dict).



-spec take(dict(SB, SC), list(SB)) -> dict(SB, SC).

take(Dict, Desired_keys) ->

    maps:with(Desired_keys, Dict).



-spec merge(dict(SP, SQ), dict(SP, SQ)) -> dict(SP, SQ).

merge(Dict, New_entries) ->

    maps:merge(Dict, New_entries).



-spec delete(dict(TF, TG), TF) -> dict(TF, TG).

delete(Dict, Key) ->

    maps:remove(Key, Dict).



-spec drop(dict(TR, TS), list(TR)) -> dict(TR, TS).

drop(Dict, Disallowed_keys) ->

    case Disallowed_keys of

        [] ->

            Dict;



        [X | Xs] ->

            drop(delete(Dict, X), Xs)

    end.



-spec update(dict(TY, TZ), TY, fun((gleam@option:option(TZ)) -> TZ)) -> dict(TY, TZ).

update(Dict, Key, Fun) ->

    _pipe = Dict,

    _pipe@1 = get(_pipe, Key),

    _pipe@2 = gleam@option:from_result(_pipe@1),

    _pipe@3 = Fun(_pipe@2),

    insert(Dict, Key, _pipe@3).



-spec do_fold(list({UF, UG}), UI, fun((UI, UF, UG) -> UI)) -> UI.

do_fold(List, Initial, Fun) ->

    case List of

        [] ->

            Initial;



        [{K, V} | Rest] ->

            do_fold(Rest, Fun(Initial, K, V), Fun)

    end.



-spec fold(dict(UJ, UK), UN, fun((UN, UJ, UK) -> UN)) -> UN.

fold(Dict, Initial, Fun) ->

    _pipe = Dict,

    _pipe@1 = to_list(_pipe),

    do_fold(_pipe@1, Initial, Fun).