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import any
import result
// TODO: drop
// TODO: take
// TODO: update :: fn(Map(k, v), k, fn(Result(v, NotFound)) -> v) -> Map(k, v)
pub external type Map(key, value);
pub enum NotFound =
| NotFound
pub external fn size(Map(k, v)) -> Int
= "maps" "size"
pub external fn to_list(Map(key, value)) -> List({key, value})
= "maps" "to_list"
pub external fn from_list(List({key, value})) -> Map(key, value)
= "maps" "from_list"
external fn is_key(key, Map(key, v)) -> Bool
= "maps" "is_key"
pub fn has_key(map, key) {
is_key(key, map)
}
pub external fn new() -> Map(key, value)
= "maps" "new"
pub external fn fetch(Map(key, value), key) -> Result(value, NotFound)
= "gleam__stdlib" "map_fetch";
external fn erl_put(key, value, Map(key, value)) -> Map(key, value)
= "maps" "put";
pub fn put(map, key, value) {
erl_put(key, value, map)
}
external fn erl_map_values(fn(key, value) -> value, Map(key, value)) -> Map(key, value)
= "maps" "map";
pub fn map_values(map, fun) {
erl_map_values(fun, map)
}
pub external fn keys(Map(keys, v)) -> List(keys)
= "maps" "keys"
pub external fn values(Map(k, values)) -> List(values)
= "maps" "values"
external fn erl_filter(fn(key, value) -> Bool, Map(key, value)) -> Map(key, value)
= "maps" "filter";
pub fn filter(map, fun) {
erl_filter(fun, map)
}
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