error: defining a method called `add` on this type; consider implementing the `std::ops::Add` trait or choosing a less ambiguous name --> $DIR/methods.rs:31:5 | 31 | pub fn add(self, other: T) -> T { self } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::should-implement-trait` implied by `-D warnings` error: methods called `into_*` usually take self by value; consider choosing a less ambiguous name --> $DIR/methods.rs:42:17 | 42 | fn into_u16(&self) -> u16 { 0 } | ^^^^^ | = note: `-D clippy::wrong-self-convention` implied by `-D warnings` error: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name --> $DIR/methods.rs:44:21 | 44 | fn to_something(self) -> u32 { 0 } | ^^^^ error: methods called `new` usually take no self; consider choosing a less ambiguous name --> $DIR/methods.rs:46:12 | 46 | fn new(self) -> Self { unimplemented!(); } | ^^^^ error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead --> $DIR/methods.rs:114:13 | 114 | let _ = opt.map(|x| x + 1) | _____________^ 115 | | 116 | | .unwrap_or(0); // should lint even though this call is on a separate line | |____________________________^ | = note: `-D clippy::option-map-unwrap-or` implied by `-D warnings` = note: replace `map(|x| x + 1).unwrap_or(0)` with `map_or(0, |x| x + 1)` error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead --> $DIR/methods.rs:118:13 | 118 | let _ = opt.map(|x| { | _____________^ 119 | | x + 1 120 | | } 121 | | ).unwrap_or(0); | |____________________________^ error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead --> $DIR/methods.rs:122:13 | 122 | let _ = opt.map(|x| x + 1) | _____________^ 123 | | .unwrap_or({ 124 | | 0 125 | | }); | |__________________^ error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead --> $DIR/methods.rs:127:13 | 127 | let _ = opt.map(|x| Some(x + 1)).unwrap_or(None); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))` error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead --> $DIR/methods.rs:129:13 | 129 | let _ = opt.map(|x| { | _____________^ 130 | | Some(x + 1) 131 | | } 132 | | ).unwrap_or(None); | |_____________________^ error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead --> $DIR/methods.rs:133:13 | 133 | let _ = opt | _____________^ 134 | | .map(|x| Some(x + 1)) 135 | | .unwrap_or(None); | |________________________^ | = note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))` error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead --> $DIR/methods.rs:141:13 | 141 | let _ = opt.map(|x| x + 1) | _____________^ 142 | | 143 | | .unwrap_or_else(|| 0); // should lint even though this call is on a separate line | |____________________________________^ | = note: `-D clippy::option-map-unwrap-or-else` implied by `-D warnings` = note: replace `map(|x| x + 1).unwrap_or_else(|| 0)` with `map_or_else(|| 0, |x| x + 1)` error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead --> $DIR/methods.rs:145:13 | 145 | let _ = opt.map(|x| { | _____________^ 146 | | x + 1 147 | | } 148 | | ).unwrap_or_else(|| 0); | |____________________________________^ error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead --> $DIR/methods.rs:149:13 | 149 | let _ = opt.map(|x| x + 1) | _____________^ 150 | | .unwrap_or_else(|| 151 | | 0 152 | | ); | |_________________^ error: called `map_or(None, f)` on an Option value. This can be done more directly by calling `and_then(f)` instead --> $DIR/methods.rs:158:13 | 158 | let _ = opt.map_or(None, |x| Some(x + 1)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using and_then instead: `opt.and_then(|x| Some(x + 1))` | = note: `-D clippy::option-map-or-none` implied by `-D warnings` error: called `map_or(None, f)` on an Option value. This can be done more directly by calling `and_then(f)` instead --> $DIR/methods.rs:160:13 | 160 | let _ = opt.map_or(None, |x| { | _____________^ 161 | | Some(x + 1) 162 | | } 163 | | ); | |_________________^ help: try using and_then instead | 160 | let _ = opt.and_then(|x| { 161 | Some(x + 1) 162 | }); | error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead --> $DIR/methods.rs:173:13 | 173 | let _ = res.map(|x| x + 1) | _____________^ 174 | | 175 | | .unwrap_or_else(|e| 0); // should lint even though this call is on a separate line | |_____________________________________^ | = note: `-D clippy::result-map-unwrap-or-else` implied by `-D warnings` = note: replace `map(|x| x + 1).unwrap_or_else(|e| 0)` with `ok().map_or_else(|e| 0, |x| x + 1)` error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead --> $DIR/methods.rs:177:13 | 177 | let _ = res.map(|x| { | _____________^ 178 | | x + 1 179 | | } 180 | | ).unwrap_or_else(|e| 0); | |_____________________________________^ error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead --> $DIR/methods.rs:181:13 | 181 | let _ = res.map(|x| x + 1) | _____________^ 182 | | .unwrap_or_else(|e| 183 | | 0 184 | | ); | |_________________^ error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead. --> $DIR/methods.rs:244:13 | 244 | let _ = v.iter().filter(|&x| *x < 0).next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::filter-next` implied by `-D warnings` = note: replace `filter(|&x| *x < 0).next()` with `find(|&x| *x < 0)` error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead. --> $DIR/methods.rs:247:13 | 247 | let _ = v.iter().filter(|&x| { | _____________^ 248 | | *x < 0 249 | | } 250 | | ).next(); | |___________________________^ error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`. --> $DIR/methods.rs:262:13 | 262 | let _ = v.iter().find(|&x| *x < 0).is_some(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::search-is-some` implied by `-D warnings` = note: replace `find(|&x| *x < 0).is_some()` with `any(|&x| *x < 0)` error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`. --> $DIR/methods.rs:265:13 | 265 | let _ = v.iter().find(|&x| { | _____________^ 266 | | *x < 0 267 | | } 268 | | ).is_some(); | |______________________________^ error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`. --> $DIR/methods.rs:271:13 | 271 | let _ = v.iter().position(|&x| x < 0).is_some(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: replace `position(|&x| x < 0).is_some()` with `any(|&x| x < 0)` error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`. --> $DIR/methods.rs:274:13 | 274 | let _ = v.iter().position(|&x| { | _____________^ 275 | | x < 0 276 | | } 277 | | ).is_some(); | |______________________________^ error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`. --> $DIR/methods.rs:280:13 | 280 | let _ = v.iter().rposition(|&x| x < 0).is_some(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: replace `rposition(|&x| x < 0).is_some()` with `any(|&x| x < 0)` error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`. --> $DIR/methods.rs:283:13 | 283 | let _ = v.iter().rposition(|&x| { | _____________^ 284 | | x < 0 285 | | } 286 | | ).is_some(); | |______________________________^ error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:318:22 | 318 | with_constructor.unwrap_or(make()); | ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(make)` | = note: `-D clippy::or-fun-call` implied by `-D warnings` error: use of `unwrap_or` followed by a call to `new` --> $DIR/methods.rs:321:5 | 321 | with_new.unwrap_or(Vec::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_new.unwrap_or_default()` error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:324:21 | 324 | with_const_args.unwrap_or(Vec::with_capacity(12)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Vec::with_capacity(12))` error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:327:14 | 327 | with_err.unwrap_or(make()); | ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| make())` error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:330:19 | 330 | with_err_args.unwrap_or(Vec::with_capacity(12)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| Vec::with_capacity(12))` error: use of `unwrap_or` followed by a call to `default` --> $DIR/methods.rs:333:5 | 333 | with_default_trait.unwrap_or(Default::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_trait.unwrap_or_default()` error: use of `unwrap_or` followed by a call to `default` --> $DIR/methods.rs:336:5 | 336 | with_default_type.unwrap_or(u64::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_type.unwrap_or_default()` error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:339:14 | 339 | with_vec.unwrap_or(vec![]); | ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| vec![])` error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:344:21 | 344 | without_default.unwrap_or(Foo::new()); | ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(Foo::new)` error: use of `or_insert` followed by a function call --> $DIR/methods.rs:347:19 | 347 | map.entry(42).or_insert(String::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)` error: use of `or_insert` followed by a function call --> $DIR/methods.rs:350:21 | 350 | btree.entry(42).or_insert(String::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)` error: use of `unwrap_or` followed by a function call --> $DIR/methods.rs:353:21 | 353 | let _ = stringy.unwrap_or("".to_owned()); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_owned())` error: `error_code` is shadowed by `123_i32` --> $DIR/methods.rs:387:9 | 387 | let error_code = 123_i32; | ^^^^^^^^^^ | = note: `-D clippy::shadow-unrelated` implied by `-D warnings` note: initialization happens here --> $DIR/methods.rs:387:22 | 387 | let error_code = 123_i32; | ^^^^^^^ note: previous binding is here --> $DIR/methods.rs:374:9 | 374 | let error_code = 123_i32; | ^^^^^^^^^^ error: use of `expect` followed by a function call --> $DIR/methods.rs:376:26 | 376 | with_none_and_format.expect(&format!("Error {}: fake error", error_code)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error {}: fake error", error_code))` | = note: `-D clippy::expect-fun-call` implied by `-D warnings` error: use of `expect` followed by a function call --> $DIR/methods.rs:379:26 | 379 | with_none_and_as_str.expect(format!("Error {}: fake error", error_code).as_str()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error {}: fake error", error_code))` error: use of `expect` followed by a function call --> $DIR/methods.rs:389:25 | 389 | with_err_and_format.expect(&format!("Error {}: fake error", error_code)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("Error {}: fake error", error_code))` error: use of `expect` followed by a function call --> $DIR/methods.rs:392:25 | 392 | with_err_and_as_str.expect(format!("Error {}: fake error", error_code).as_str()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("Error {}: fake error", error_code))` error: use of `expect` followed by a function call --> $DIR/methods.rs:407:17 | 407 | Some("foo").expect({ &format!("error") }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { let msg = { &format!("error") }; panic!(msg) }))` error: use of `expect` followed by a function call --> $DIR/methods.rs:408:17 | 408 | Some("foo").expect(format!("error").as_ref()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("error"))` error: called `.iter().nth()` on a Vec. Calling `.get()` is both faster and more readable --> $DIR/methods.rs:419:23 | 419 | let bad_vec = some_vec.iter().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::iter-nth` implied by `-D warnings` error: called `.iter().nth()` on a slice. Calling `.get()` is both faster and more readable --> $DIR/methods.rs:420:26 | 420 | let bad_slice = &some_vec[..].iter().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `.iter().nth()` on a slice. Calling `.get()` is both faster and more readable --> $DIR/methods.rs:421:31 | 421 | let bad_boxed_slice = boxed_slice.iter().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `.iter().nth()` on a VecDeque. Calling `.get()` is both faster and more readable --> $DIR/methods.rs:422:29 | 422 | let bad_vec_deque = some_vec_deque.iter().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `.iter_mut().nth()` on a Vec. Calling `.get_mut()` is both faster and more readable --> $DIR/methods.rs:427:23 | 427 | let bad_vec = some_vec.iter_mut().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `.iter_mut().nth()` on a slice. Calling `.get_mut()` is both faster and more readable --> $DIR/methods.rs:430:26 | 430 | let bad_slice = &some_vec[..].iter_mut().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `.iter_mut().nth()` on a VecDeque. Calling `.get_mut()` is both faster and more readable --> $DIR/methods.rs:433:29 | 433 | let bad_vec_deque = some_vec_deque.iter_mut().nth(3); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)` --> $DIR/methods.rs:445:13 | 445 | let _ = some_vec.iter().skip(42).next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::iter-skip-next` implied by `-D warnings` error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)` --> $DIR/methods.rs:446:13 | 446 | let _ = some_vec.iter().cycle().skip(42).next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)` --> $DIR/methods.rs:447:13 | 447 | let _ = (1..10).skip(10).next(); | ^^^^^^^^^^^^^^^^^^^^^^^ error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)` --> $DIR/methods.rs:448:14 | 448 | let _ = &some_vec[..].iter().skip(3).next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: used unwrap() on an Option value. If you don't want to handle the None case gracefully, consider using expect() to provide a better panic message --> $DIR/methods.rs:457:13 | 457 | let _ = opt.unwrap(); | ^^^^^^^^^^^^ | = note: `-D clippy::option-unwrap-used` implied by `-D warnings` error: aborting due to 57 previous errors