mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-22 11:03:16 +00:00
2f0e9f7d3a
Applies for `std::collections::hash_map::Entry` and `std::collections::btree_map::Entry`
Example:
Previously, for the following code:
`let _ = hash_map.entry("test".to_owned()).or_insert(vec![]);`
clippy would suggest to use:
`or_insert_with(vec![])`, which causes a compiler error (E0277).
Now clippy suggests:
`or_insert_with(Vec::new)`
118 lines
4.6 KiB
Text
118 lines
4.6 KiB
Text
error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:33:19
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LL | with_const_fn.unwrap_or(Duration::from_secs(5));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Duration::from_secs(5))`
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= note: `-D clippy::or-fun-call` implied by `-D warnings`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:36:22
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LL | with_constructor.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(make)`
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error: use of `unwrap_or` followed by a call to `new`
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--> $DIR/or_fun_call.rs:39:5
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LL | with_new.unwrap_or(Vec::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_new.unwrap_or_default()`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:42:21
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LL | with_const_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Vec::with_capacity(12))`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:45:14
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LL | with_err.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| make())`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:48:19
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LL | with_err_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| Vec::with_capacity(12))`
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error: use of `unwrap_or` followed by a call to `default`
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--> $DIR/or_fun_call.rs:51:5
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LL | with_default_trait.unwrap_or(Default::default());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_trait.unwrap_or_default()`
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error: use of `unwrap_or` followed by a call to `default`
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--> $DIR/or_fun_call.rs:54:5
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LL | with_default_type.unwrap_or(u64::default());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_type.unwrap_or_default()`
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error: use of `unwrap_or` followed by a call to `new`
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--> $DIR/or_fun_call.rs:57:5
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LL | with_vec.unwrap_or(vec![]);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_vec.unwrap_or_default()`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:60:21
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LL | without_default.unwrap_or(Foo::new());
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| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(Foo::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/or_fun_call.rs:63:19
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LL | map.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/or_fun_call.rs:66:23
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LL | map_vec.entry(42).or_insert(vec![]);
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| ^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/or_fun_call.rs:69:21
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LL | btree.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/or_fun_call.rs:72:25
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LL | btree_vec.entry(42).or_insert(vec![]);
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| ^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:75:21
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LL | let _ = stringy.unwrap_or("".to_owned());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_owned())`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:83:21
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LL | let _ = Some(1).unwrap_or(map[&1]);
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| ^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| map[&1])`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/or_fun_call.rs:85:21
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LL | let _ = Some(1).unwrap_or(map[&1]);
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| ^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| map[&1])`
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error: use of `or` followed by a function call
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--> $DIR/or_fun_call.rs:109:35
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LL | let _ = Some("a".to_string()).or(Some("b".to_string()));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| Some("b".to_string()))`
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error: use of `or` followed by a function call
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--> $DIR/or_fun_call.rs:113:10
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LL | .or(Some(Bar(b, Duration::from_secs(2))));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| Some(Bar(b, Duration::from_secs(2))))`
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error: aborting due to 19 previous errors
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