2015-12-21 23:35:56 +00:00
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#![feature(plugin)]
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#![plugin(clippy)]
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2016-04-17 10:52:38 +00:00
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#![allow(unused)]
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2015-12-21 23:35:56 +00:00
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2016-01-12 19:23:28 +00:00
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#![deny(map_entry)]
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2015-12-21 23:35:56 +00:00
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2016-01-12 19:23:28 +00:00
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use std::collections::{BTreeMap, HashMap};
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2015-12-21 23:35:56 +00:00
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use std::hash::Hash;
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2016-01-03 16:19:49 +00:00
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fn foo() {}
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fn insert_if_absent0<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
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if !m.contains_key(&k) { m.insert(k, v); }
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2016-01-13 16:17:19 +00:00
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//~^ ERROR usage of `contains_key` followed by `insert` on `HashMap`
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//~| HELP Consider
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//~| SUGGESTION m.entry(k).or_insert(v)
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2016-01-03 16:19:49 +00:00
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}
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fn insert_if_absent1<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
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if !m.contains_key(&k) { foo(); m.insert(k, v); }
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2016-01-13 16:17:19 +00:00
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//~^ ERROR usage of `contains_key` followed by `insert` on `HashMap`
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2016-02-18 19:19:16 +00:00
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//~| NOTE Consider using `m.entry(k)`
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2015-12-21 23:35:56 +00:00
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}
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fn insert_if_absent2<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
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2016-01-03 16:19:49 +00:00
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if !m.contains_key(&k) { m.insert(k, v) } else { None };
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2016-01-13 16:17:19 +00:00
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//~^ ERROR usage of `contains_key` followed by `insert` on `HashMap`
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2016-02-18 19:19:16 +00:00
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//~| NOTE Consider using `m.entry(k)`
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}
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fn insert_if_present2<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
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if m.contains_key(&k) { None } else { m.insert(k, v) };
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//~^ ERROR usage of `contains_key` followed by `insert` on `HashMap`
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//~| NOTE Consider using `m.entry(k)`
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2016-01-03 16:19:49 +00:00
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}
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fn insert_if_absent3<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
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if !m.contains_key(&k) { foo(); m.insert(k, v) } else { None };
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2016-01-13 16:17:19 +00:00
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//~^ ERROR usage of `contains_key` followed by `insert` on `HashMap`
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2016-02-18 19:19:16 +00:00
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//~| NOTE Consider using `m.entry(k)`
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}
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fn insert_if_present3<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, v: V) {
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if m.contains_key(&k) { None } else { foo(); m.insert(k, v) };
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//~^ ERROR usage of `contains_key` followed by `insert` on `HashMap`
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//~| NOTE Consider using `m.entry(k)`
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2015-12-21 23:35:56 +00:00
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}
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2016-01-12 19:23:28 +00:00
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fn insert_in_btreemap<K: Ord, V>(m: &mut BTreeMap<K, V>, k: K, v: V) {
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if !m.contains_key(&k) { foo(); m.insert(k, v) } else { None };
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2016-01-13 16:17:19 +00:00
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//~^ ERROR usage of `contains_key` followed by `insert` on `BTreeMap`
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2016-02-18 19:19:16 +00:00
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//~| NOTE Consider using `m.entry(k)`
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2016-01-12 19:23:28 +00:00
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}
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2015-12-21 23:35:56 +00:00
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fn insert_other_if_absent<K: Eq + Hash, V>(m: &mut HashMap<K, V>, k: K, o: K, v: V) {
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2016-01-03 15:31:28 +00:00
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if !m.contains_key(&k) { m.insert(o, v); }
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2015-12-21 23:35:56 +00:00
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}
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fn main() {
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}
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