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gleam_stdlib
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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(FBM) :: {set, gleam@dict:dict(FBM, list(nil))}.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 32).
-spec new() -> set(any()).
new() ->
{set, maps: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(FBX), FBX) -> boolean().
contains(Set, Member) ->
_pipe = erlang:element(2, Set),
_pipe@1 = gleam_stdlib:map_get(_pipe, Member),
gleam@result:is_ok(_pipe@1).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 131).
-spec delete(set(FBZ), FBZ) -> set(FBZ).
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(FCC)) -> list(FCC).
to_list(Set) ->
maps:keys(erlang:element(2, Set)).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 190).
-spec fold(set(FCI), FCK, fun((FCK, FCI) -> FCK)) -> FCK.
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(FCL), fun((FCL) -> boolean())) -> set(FCL).
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(FCS), list(FCS)) -> set(FCS).
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(FCW), list(FCW)) -> set(FCW).
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(FDE), set(FDE)) -> {set(FDE), set(FDE)}.
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(FDJ), set(FDJ)) -> set(FDJ).
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(FDN), set(FDN)) -> set(FDN).
difference(First, Second) ->
drop(First, to_list(Second)).
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 344).
-spec is_subset(set(FDR), set(FDR)) -> boolean().
is_subset(First, Second) ->
intersection(First, Second) =:= First.
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 362).
-spec is_disjoint(set(FDU), set(FDU)) -> boolean().
is_disjoint(First, Second) ->
intersection(First, Second) =:= new().
-file("/Users/louis/src/gleam/stdlib/src/gleam/set.gleam", 402).
-spec each(set(FEB), fun((FEB) -> 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(FBU), FBU) -> set(FBU).
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(FCF)) -> set(FCF).
from_list(Members) ->
Dict = gleam@list:fold(
Members,
maps: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(FCO), fun((FCO) -> FCQ)) -> set(FCQ).
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(FDA), set(FDA)) -> set(FDA).
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(FDX), set(FDX)) -> set(FDX).
symmetric_difference(First, Second) ->
difference(union(First, Second), intersection(First, Second)).