2015-12-22 00:35:56 +01:00
|
|
|
#![feature(plugin)]
|
|
|
|
#![plugin(clippy)]
|
2016-04-17 12:52:38 +02:00
|
|
|
#![allow(unused)]
|
2015-12-22 00:35:56 +01:00
|
|
|
|
2016-01-12 20:23:28 +01:00
|
|
|
#![deny(map_entry)]
|
2015-12-22 00:35:56 +01:00
|
|
|
|
2016-01-12 20:23:28 +01:00
|
|
|
use std::collections::{BTreeMap, HashMap};
|
2015-12-22 00:35:56 +01:00
|
|
|
use std::hash::Hash;
|
|
|
|
|
2016-01-03 17:19:49 +01:00
|
|
|
fn foo() {}
|
|
|
|
|
|
|
|
fn insert_if_absent0<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
|
|
|
|
if !m.contains_key(&k) { m.insert(k, v); }
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2016-01-03 17:19:49 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
fn insert_if_absent1<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
|
|
|
|
if !m.contains_key(&k) { foo(); m.insert(k, v); }
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2015-12-22 00:35:56 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
fn insert_if_absent2<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
|
2016-01-03 17:19:49 +01:00
|
|
|
if !m.contains_key(&k) { m.insert(k, v) } else { None };
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2016-02-18 20:19:16 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
fn insert_if_present2<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
|
|
|
|
if m.contains_key(&k) { None } else { m.insert(k, v) };
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2016-01-03 17:19:49 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
fn insert_if_absent3<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
|
|
|
|
if !m.contains_key(&k) { foo(); m.insert(k, v) } else { None };
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2016-02-18 20:19:16 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
fn insert_if_present3<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
|
|
|
|
if m.contains_key(&k) { None } else { foo(); m.insert(k, v) };
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2015-12-22 00:35:56 +01:00
|
|
|
}
|
|
|
|
|
2016-01-12 20:23:28 +01:00
|
|
|
fn insert_in_btreemap<K: Ord, V>(m: &mut BTreeMap<K, V>, k: K, v: V) {
|
|
|
|
if !m.contains_key(&k) { foo(); m.insert(k, v) } else { None };
|
2017-02-08 14:58:07 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
2016-01-12 20:23:28 +01:00
|
|
|
}
|
|
|
|
|
2015-12-22 00:35:56 +01:00
|
|
|
fn insert_other_if_absent<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, o: K, v: V) {
|
2016-01-03 16:31:28 +01:00
|
|
|
if !m.contains_key(&k) { m.insert(o, v); }
|
2015-12-22 00:35:56 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
fn main() {
|
|
|
|
}
|