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move starts_ends_with tests
This commit is contained in:
Cameron Steffen
parent
73a1dd8e7f
commit
c1a147f48e
@ -432,12 +432,6 @@ struct MyErrorWithParam<T> {
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x: T
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}
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#[allow(unnecessary_operation)]
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fn starts_with() {
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"".chars().next() == Some(' ');
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Some(' ') != "".chars().next();
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}
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fn str_extend_chars() {
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let abc = "abc";
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let def = String::from("def");
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@ -557,33 +551,3 @@ fn iter_clone_collect() {
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let v3 : HashSet<isize> = v.iter().cloned().collect();
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let v4 : VecDeque<isize> = v.iter().cloned().collect();
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}
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fn chars_cmp_with_unwrap() {
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let s = String::from("foo");
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if s.chars().next().unwrap() == 'f' { // s.starts_with('f')
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// Nothing here
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}
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if s.chars().next_back().unwrap() == 'o' { // s.ends_with('o')
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// Nothing here
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}
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if s.chars().last().unwrap() == 'o' { // s.ends_with('o')
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// Nothing here
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}
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if s.chars().next().unwrap() != 'f' { // !s.starts_with('f')
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// Nothing here
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}
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if s.chars().next_back().unwrap() != 'o' { // !s.ends_with('o')
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// Nothing here
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}
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if s.chars().last().unwrap() != 'o' { // !s.ends_with('o')
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// Nothing here
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}
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}
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#[allow(unnecessary_operation)]
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fn ends_with() {
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"".chars().last() == Some(' ');
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Some(' ') != "".chars().last();
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"".chars().next_back() == Some(' ');
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Some(' ') != "".chars().next_back();
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}
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@ -547,321 +547,209 @@ error: called `ok().expect()` on a Result value. You can call `expect` directly
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425 | res6.ok().expect("meh");
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| ^^^^^^^^^^^^^^^^^^^^^^^
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error: you should use the `starts_with` method
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--> $DIR/methods.rs:437:5
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437 | "".chars().next() == Some(' ');
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".starts_with(' ')`
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= note: `-D chars-next-cmp` implied by `-D warnings`
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error: you should use the `starts_with` method
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--> $DIR/methods.rs:438:5
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438 | Some(' ') != "".chars().next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".starts_with(' ')`
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error: calling `.extend(_.chars())`
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--> $DIR/methods.rs:447:5
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--> $DIR/methods.rs:441:5
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447 | s.extend(abc.chars());
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441 | s.extend(abc.chars());
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| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.push_str(abc)`
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= note: `-D string-extend-chars` implied by `-D warnings`
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error: calling `.extend(_.chars())`
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--> $DIR/methods.rs:450:5
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--> $DIR/methods.rs:444:5
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450 | s.extend("abc".chars());
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444 | s.extend("abc".chars());
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| ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.push_str("abc")`
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error: calling `.extend(_.chars())`
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--> $DIR/methods.rs:453:5
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--> $DIR/methods.rs:447:5
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453 | s.extend(def.chars());
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447 | s.extend(def.chars());
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| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.push_str(&def)`
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error: using `clone` on a `Copy` type
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--> $DIR/methods.rs:464:5
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--> $DIR/methods.rs:458:5
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464 | 42.clone();
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458 | 42.clone();
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| ^^^^^^^^^^ help: try removing the `clone` call: `42`
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= note: `-D clone-on-copy` implied by `-D warnings`
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error: using `clone` on a `Copy` type
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--> $DIR/methods.rs:468:5
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--> $DIR/methods.rs:462:5
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468 | (&42).clone();
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462 | (&42).clone();
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| ^^^^^^^^^^^^^ help: try dereferencing it: `*(&42)`
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error: using '.clone()' on a ref-counted pointer
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--> $DIR/methods.rs:478:5
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--> $DIR/methods.rs:472:5
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478 | rc.clone();
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472 | rc.clone();
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| ^^^^^^^^^^ help: try this: `Rc::clone(&rc)`
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= note: `-D clone-on-ref-ptr` implied by `-D warnings`
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error: using '.clone()' on a ref-counted pointer
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--> $DIR/methods.rs:481:5
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--> $DIR/methods.rs:475:5
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481 | arc.clone();
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475 | arc.clone();
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| ^^^^^^^^^^^ help: try this: `Arc::clone(&arc)`
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error: using '.clone()' on a ref-counted pointer
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--> $DIR/methods.rs:484:5
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--> $DIR/methods.rs:478:5
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484 | rcweak.clone();
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478 | rcweak.clone();
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| ^^^^^^^^^^^^^^ help: try this: `Weak::clone(&rcweak)`
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error: using '.clone()' on a ref-counted pointer
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--> $DIR/methods.rs:487:5
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--> $DIR/methods.rs:481:5
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487 | arc_weak.clone();
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481 | arc_weak.clone();
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| ^^^^^^^^^^^^^^^^ help: try this: `Weak::clone(&arc_weak)`
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error: using `clone` on a `Copy` type
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--> $DIR/methods.rs:494:5
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--> $DIR/methods.rs:488:5
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494 | t.clone();
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488 | t.clone();
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| ^^^^^^^^^ help: try removing the `clone` call: `t`
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error: using `clone` on a `Copy` type
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--> $DIR/methods.rs:496:5
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--> $DIR/methods.rs:490:5
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496 | Some(t).clone();
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490 | Some(t).clone();
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| ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `Some(t)`
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error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
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--> $DIR/methods.rs:502:22
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--> $DIR/methods.rs:496:22
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502 | let z: &Vec<_> = y.clone();
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496 | let z: &Vec<_> = y.clone();
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| ^^^^^^^^^ help: try dereferencing it: `(*y).clone()`
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= note: `-D clone-double-ref` implied by `-D warnings`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:509:13
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--> $DIR/methods.rs:503:13
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509 | x.split("x");
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503 | x.split("x");
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| --------^^^- help: try using a char instead: `x.split('x')`
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= note: `-D single-char-pattern` implied by `-D warnings`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:526:16
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--> $DIR/methods.rs:520:16
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526 | x.contains("x");
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520 | x.contains("x");
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| -----------^^^- help: try using a char instead: `x.contains('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:527:19
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--> $DIR/methods.rs:521:19
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527 | x.starts_with("x");
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521 | x.starts_with("x");
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| --------------^^^- help: try using a char instead: `x.starts_with('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:522:17
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522 | x.ends_with("x");
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| ------------^^^- help: try using a char instead: `x.ends_with('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:523:12
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523 | x.find("x");
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| -------^^^- help: try using a char instead: `x.find('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:524:13
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524 | x.rfind("x");
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| --------^^^- help: try using a char instead: `x.rfind('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:525:14
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525 | x.rsplit("x");
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| ---------^^^- help: try using a char instead: `x.rsplit('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:526:24
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526 | x.split_terminator("x");
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| -------------------^^^- help: try using a char instead: `x.split_terminator('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:527:25
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527 | x.rsplit_terminator("x");
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| --------------------^^^- help: try using a char instead: `x.rsplit_terminator('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:528:17
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528 | x.ends_with("x");
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| ------------^^^- help: try using a char instead: `x.ends_with('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:529:12
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529 | x.find("x");
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| -------^^^- help: try using a char instead: `x.find('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:530:13
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530 | x.rfind("x");
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| --------^^^- help: try using a char instead: `x.rfind('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:531:14
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531 | x.rsplit("x");
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| ---------^^^- help: try using a char instead: `x.rsplit('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:532:24
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532 | x.split_terminator("x");
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| -------------------^^^- help: try using a char instead: `x.split_terminator('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:533:25
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533 | x.rsplit_terminator("x");
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| --------------------^^^- help: try using a char instead: `x.rsplit_terminator('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:534:17
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534 | x.splitn(0, "x");
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528 | x.splitn(0, "x");
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| ------------^^^- help: try using a char instead: `x.splitn(0, 'x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:535:18
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--> $DIR/methods.rs:529:18
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535 | x.rsplitn(0, "x");
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529 | x.rsplitn(0, "x");
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| -------------^^^- help: try using a char instead: `x.rsplitn(0, 'x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:536:15
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--> $DIR/methods.rs:530:15
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536 | x.matches("x");
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530 | x.matches("x");
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| ----------^^^- help: try using a char instead: `x.matches('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:537:16
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--> $DIR/methods.rs:531:16
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537 | x.rmatches("x");
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531 | x.rmatches("x");
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| -----------^^^- help: try using a char instead: `x.rmatches('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:538:21
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--> $DIR/methods.rs:532:21
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538 | x.match_indices("x");
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532 | x.match_indices("x");
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| ----------------^^^- help: try using a char instead: `x.match_indices('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:539:22
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--> $DIR/methods.rs:533:22
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539 | x.rmatch_indices("x");
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533 | x.rmatch_indices("x");
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| -----------------^^^- help: try using a char instead: `x.rmatch_indices('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:540:25
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--> $DIR/methods.rs:534:25
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540 | x.trim_left_matches("x");
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534 | x.trim_left_matches("x");
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| --------------------^^^- help: try using a char instead: `x.trim_left_matches('x')`
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error: single-character string constant used as pattern
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--> $DIR/methods.rs:541:26
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--> $DIR/methods.rs:535:26
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541 | x.trim_right_matches("x");
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535 | x.trim_right_matches("x");
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| ---------------------^^^- help: try using a char instead: `x.trim_right_matches('x')`
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error: you are getting the inner pointer of a temporary `CString`
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--> $DIR/methods.rs:551:5
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--> $DIR/methods.rs:545:5
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551 | CString::new("foo").unwrap().as_ptr();
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545 | CString::new("foo").unwrap().as_ptr();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D temporary-cstring-as-ptr` implied by `-D warnings`
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= note: that pointer will be invalid outside this expression
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help: assign the `CString` to a variable to extend its lifetime
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--> $DIR/methods.rs:551:5
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--> $DIR/methods.rs:545:5
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551 | CString::new("foo").unwrap().as_ptr();
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545 | CString::new("foo").unwrap().as_ptr();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `cloned().collect()` on a slice to create a `Vec`. Calling `to_vec()` is both faster and more readable
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--> $DIR/methods.rs:556:27
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--> $DIR/methods.rs:550:27
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556 | let v2 : Vec<isize> = v.iter().cloned().collect();
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550 | let v2 : Vec<isize> = v.iter().cloned().collect();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D iter-cloned-collect` implied by `-D warnings`
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error: you should use the `starts_with` method
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--> $DIR/methods.rs:563:8
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563 | if s.chars().next().unwrap() == 'f' { // s.starts_with('f')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.starts_with('f')`
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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
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--> $DIR/methods.rs:563:8
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563 | if s.chars().next().unwrap() == 'f' { // s.starts_with('f')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: you should use the `ends_with` method
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--> $DIR/methods.rs:566:8
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566 | if s.chars().next_back().unwrap() == 'o' { // s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.ends_with('o')`
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|
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= note: `-D chars-last-cmp` implied by `-D warnings`
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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
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--> $DIR/methods.rs:566:8
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|
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566 | if s.chars().next_back().unwrap() == 'o' { // s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: you should use the `ends_with` method
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--> $DIR/methods.rs:569:8
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|
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569 | if s.chars().last().unwrap() == 'o' { // s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.ends_with('o')`
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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
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--> $DIR/methods.rs:569:8
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|
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569 | if s.chars().last().unwrap() == 'o' { // s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: you should use the `starts_with` method
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--> $DIR/methods.rs:572:8
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|
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572 | if s.chars().next().unwrap() != 'f' { // !s.starts_with('f')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.starts_with('f')`
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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
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--> $DIR/methods.rs:572:8
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572 | if s.chars().next().unwrap() != 'f' { // !s.starts_with('f')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: you should use the `ends_with` method
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--> $DIR/methods.rs:575:8
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|
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575 | if s.chars().next_back().unwrap() != 'o' { // !s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.ends_with('o')`
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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
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--> $DIR/methods.rs:575:8
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|
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575 | if s.chars().next_back().unwrap() != 'o' { // !s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: you should use the `ends_with` method
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--> $DIR/methods.rs:578:8
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|
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578 | if s.chars().last().unwrap() != 'o' { // !s.ends_with('o')
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.ends_with('o')`
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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
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--> $DIR/methods.rs:578:8
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|
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578 | if s.chars().last().unwrap() != 'o' { // !s.ends_with('o')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/methods.rs:585:5
|
||||
|
|
||||
585 | "".chars().last() == Some(' ');
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".ends_with(' ')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/methods.rs:586:5
|
||||
|
|
||||
586 | Some(' ') != "".chars().last();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".ends_with(' ')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/methods.rs:587:5
|
||||
|
|
||||
587 | "".chars().next_back() == Some(' ');
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".ends_with(' ')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/methods.rs:588:5
|
||||
|
|
||||
588 | Some(' ') != "".chars().next_back();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".ends_with(' ')`
|
||||
|
||||
|
||||
39
tests/ui/starts_ends_with.rs
Normal file
39
tests/ui/starts_ends_with.rs
Normal file
@ -0,0 +1,39 @@
|
||||
#![allow(dead_code)]
|
||||
|
||||
fn main() {}
|
||||
|
||||
#[allow(unnecessary_operation)]
|
||||
fn starts_with() {
|
||||
"".chars().next() == Some(' ');
|
||||
Some(' ') != "".chars().next();
|
||||
}
|
||||
|
||||
fn chars_cmp_with_unwrap() {
|
||||
let s = String::from("foo");
|
||||
if s.chars().next().unwrap() == 'f' { // s.starts_with('f')
|
||||
// Nothing here
|
||||
}
|
||||
if s.chars().next_back().unwrap() == 'o' { // s.ends_with('o')
|
||||
// Nothing here
|
||||
}
|
||||
if s.chars().last().unwrap() == 'o' { // s.ends_with('o')
|
||||
// Nothing here
|
||||
}
|
||||
if s.chars().next().unwrap() != 'f' { // !s.starts_with('f')
|
||||
// Nothing here
|
||||
}
|
||||
if s.chars().next_back().unwrap() != 'o' { // !s.ends_with('o')
|
||||
// Nothing here
|
||||
}
|
||||
if s.chars().last().unwrap() != 'o' { // !s.ends_with('o')
|
||||
// Nothing here
|
||||
}
|
||||
}
|
||||
|
||||
#[allow(unnecessary_operation)]
|
||||
fn ends_with() {
|
||||
"".chars().last() == Some(' ');
|
||||
Some(' ') != "".chars().last();
|
||||
"".chars().next_back() == Some(' ');
|
||||
Some(' ') != "".chars().next_back();
|
||||
}
|
||||
76
tests/ui/starts_ends_with.stderr
Normal file
76
tests/ui/starts_ends_with.stderr
Normal file
@ -0,0 +1,76 @@
|
||||
error: you should use the `starts_with` method
|
||||
--> $DIR/starts_ends_with.rs:7:5
|
||||
|
|
||||
7 | "".chars().next() == Some(' ');
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".starts_with(' ')`
|
||||
|
|
||||
= note: `-D chars-next-cmp` implied by `-D warnings`
|
||||
|
||||
error: you should use the `starts_with` method
|
||||
--> $DIR/starts_ends_with.rs:8:5
|
||||
|
|
||||
8 | Some(' ') != "".chars().next();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".starts_with(' ')`
|
||||
|
||||
error: you should use the `starts_with` method
|
||||
--> $DIR/starts_ends_with.rs:13:8
|
||||
|
|
||||
13 | if s.chars().next().unwrap() == 'f' { // s.starts_with('f')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.starts_with('f')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:16:8
|
||||
|
|
||||
16 | if s.chars().next_back().unwrap() == 'o' { // s.ends_with('o')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.ends_with('o')`
|
||||
|
|
||||
= note: `-D chars-last-cmp` implied by `-D warnings`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:19:8
|
||||
|
|
||||
19 | if s.chars().last().unwrap() == 'o' { // s.ends_with('o')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.ends_with('o')`
|
||||
|
||||
error: you should use the `starts_with` method
|
||||
--> $DIR/starts_ends_with.rs:22:8
|
||||
|
|
||||
22 | if s.chars().next().unwrap() != 'f' { // !s.starts_with('f')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.starts_with('f')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:25:8
|
||||
|
|
||||
25 | if s.chars().next_back().unwrap() != 'o' { // !s.ends_with('o')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.ends_with('o')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:28:8
|
||||
|
|
||||
28 | if s.chars().last().unwrap() != 'o' { // !s.ends_with('o')
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.ends_with('o')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:35:5
|
||||
|
|
||||
35 | "".chars().last() == Some(' ');
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".ends_with(' ')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:36:5
|
||||
|
|
||||
36 | Some(' ') != "".chars().last();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".ends_with(' ')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:37:5
|
||||
|
|
||||
37 | "".chars().next_back() == Some(' ');
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".ends_with(' ')`
|
||||
|
||||
error: you should use the `ends_with` method
|
||||
--> $DIR/starts_ends_with.rs:38:5
|
||||
|
|
||||
38 | Some(' ') != "".chars().next_back();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".ends_with(' ')`
|
||||
|
||||
Loading…
Reference in New Issue
Block a user