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#![warn(clippy::zero_sized_map_values)]
use std::collections::HashMap;
const CONST_OK: Option<HashMap<String, usize>> = None;
const CONST_NOT_OK: Option<HashMap<String, ()>> = None;
static STATIC_OK: Option<HashMap<String, usize>> = None;
static STATIC_NOT_OK: Option<HashMap<String, ()>> = None;
type OkMap = HashMap<String, usize>;
type NotOkMap = HashMap<String, ()>;
enum TestEnum {
Ok(HashMap<String, usize>),
NotOk(HashMap<String, ()>),
}
struct Test {
ok: HashMap<String, usize>,
not_ok: HashMap<String, ()>,
also_not_ok: Vec<HashMap<usize, ()>>,
}
trait TestTrait {
type Output;
fn produce_output() -> Self::Output;
fn weird_map(&self, map: HashMap<usize, ()>);
}
impl Test {
fn ok(&self) -> HashMap<String, usize> {
todo!()
}
fn not_ok(&self) -> HashMap<String, ()> {
todo!()
}
}
impl TestTrait for Test {
type Output = HashMap<String, ()>;
fn produce_output() -> Self::Output {
todo!();
}
fn weird_map(&self, map: HashMap<usize, ()>) {
todo!();
}
}
fn test(map: HashMap<String, ()>, key: &str) -> HashMap<String, ()> {
todo!();
}
fn test2(map: HashMap<String, usize>, key: &str) -> HashMap<String, usize> {
todo!();
}
fn main() {
let _: HashMap<String, ()> = HashMap::new();
let _: HashMap<String, usize> = HashMap::new();
let _: HashMap<_, _> = std::iter::empty::<(String, ())>().collect();
}
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