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retired
A standard library for the Gleam programming language
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Files
src/gleam@set.erl
-module(gleam@set).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).
-export([new/0, size/1, is_empty/1, contains/2, delete/2, to_list/1, fold/3, filter/2, drop/2, take/2, intersection/2, difference/2, is_subset/2, is_disjoint/2, each/2, insert/2, from_list/1, map/2, union/2, symmetric_difference/2]).
-export_type([set/1]).
-opaque set(FFE) :: {set, gleam@dict:dict(FFE, list(nil))}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 32).
-spec new() -> set(any()).
new() ->
{set, gleam@dict:new()}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 50).
-spec size(set(any())) -> integer().
size(Set) ->
maps:size(erlang:element(2, Set)).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 68).
-spec is_empty(set(any())) -> boolean().
is_empty(Set) ->
Set =:= new().
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 110).
-spec contains(set(FFP), FFP) -> boolean().
contains(Set, Member) ->
_pipe = erlang:element(2, Set),
_pipe@1 = gleam@dict:get(_pipe, Member),
gleam@result:is_ok(_pipe@1).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 131).
-spec delete(set(FFR), FFR) -> set(FFR).
delete(Set, Member) ->
{set, gleam@dict:delete(erlang:element(2, Set), Member)}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 149).
-spec to_list(set(FFU)) -> list(FFU).
to_list(Set) ->
gleam@dict:keys(erlang:element(2, Set)).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 190).
-spec fold(set(FGA), FGC, fun((FGC, FGA) -> FGC)) -> FGC.
fold(Set, Initial, Reducer) ->
gleam@dict:fold(
erlang:element(2, Set),
Initial,
fun(A, K, _) -> Reducer(A, K) end
).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 214).
-spec filter(set(FGD), fun((FGD) -> boolean())) -> set(FGD).
filter(Set, Predicate) ->
{set,
gleam@dict:filter(erlang:element(2, Set), fun(M, _) -> Predicate(M) end)}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 249).
-spec drop(set(FGK), list(FGK)) -> set(FGK).
drop(Set, Disallowed) ->
gleam@list:fold(Disallowed, Set, fun delete/2).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 267).
-spec take(set(FGO), list(FGO)) -> set(FGO).
take(Set, Desired) ->
{set, gleam@dict:take(erlang:element(2, Set), Desired)}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 287).
-spec order(set(FGW), set(FGW)) -> {set(FGW), set(FGW)}.
order(First, Second) ->
case maps:size(erlang:element(2, First)) > maps:size(
erlang:element(2, Second)
) of
true ->
{First, Second};
false ->
{Second, First}
end.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 305).
-spec intersection(set(FHB), set(FHB)) -> set(FHB).
intersection(First, Second) ->
{Larger, Smaller} = order(First, Second),
take(Larger, to_list(Smaller)).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 323).
-spec difference(set(FHF), set(FHF)) -> set(FHF).
difference(First, Second) ->
drop(First, to_list(Second)).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 344).
-spec is_subset(set(FHJ), set(FHJ)) -> boolean().
is_subset(First, Second) ->
intersection(First, Second) =:= First.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 362).
-spec is_disjoint(set(FHM), set(FHM)) -> boolean().
is_disjoint(First, Second) ->
intersection(First, Second) =:= new().
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 402).
-spec each(set(FHT), fun((FHT) -> any())) -> nil.
each(Set, Fun) ->
fold(
Set,
nil,
fun(Nil, Member) ->
Fun(Member),
Nil
end
).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 86).
-spec insert(set(FFM), FFM) -> set(FFM).
insert(Set, Member) ->
{set, gleam@dict:insert(erlang:element(2, Set), Member, [])}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 167).
-spec from_list(list(FFX)) -> set(FFX).
from_list(Members) ->
Dict = gleam@list:fold(
Members,
gleam@dict:new(),
fun(M, K) -> gleam@dict:insert(M, K, []) end
),
{set, Dict}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 232).
-spec map(set(FGG), fun((FGG) -> FGI)) -> set(FGI).
map(Set, Fun) ->
fold(Set, new(), fun(Acc, Member) -> insert(Acc, Fun(Member)) end).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 282).
-spec union(set(FGS), set(FGS)) -> set(FGS).
union(First, Second) ->
{Larger, Smaller} = order(First, Second),
fold(Smaller, Larger, fun insert/2).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 374).
-spec symmetric_difference(set(FHP), set(FHP)) -> set(FHP).
symmetric_difference(First, Second) ->
difference(union(First, Second), intersection(First, Second)).