mirror of
https://github.com/rust-lang/rust-clippy
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205 lines
7.8 KiB
Text
205 lines
7.8 KiB
Text
error: defining a method called `add` on this type; consider implementing the `std::ops::Add` trait or choosing a less ambiguous name
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--> $DIR/methods.rs:37:5
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LL | / pub fn add(self, other: T) -> T {
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LL | | self
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LL | | }
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| |_____^
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= note: `-D clippy::should-implement-trait` implied by `-D warnings`
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error: methods called `new` usually return `Self`
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--> $DIR/methods.rs:153:5
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LL | / fn new() -> i32 {
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LL | | 0
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LL | | }
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| |_____^
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= note: `-D clippy::new-ret-no-self` implied by `-D warnings`
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:175:13
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LL | let _ = opt.map(|x| x + 1)
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| _____________^
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LL | | // Should lint even though this call is on a separate line.
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LL | | .unwrap_or(0);
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| |____________________________^
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= note: `-D clippy::option-map-unwrap-or` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or(0)` with `map_or(0, |x| x + 1)`
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:179:13
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LL | let _ = opt.map(|x| {
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| _____________^
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LL | | x + 1
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LL | | }
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LL | | ).unwrap_or(0);
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| |____________________________^
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:183:13
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LL | let _ = opt.map(|x| x + 1)
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| _____________^
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LL | | .unwrap_or({
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LL | | 0
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LL | | });
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| |__________________^
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:188:13
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LL | let _ = opt.map(|x| Some(x + 1)).unwrap_or(None);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:190:13
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LL | let _ = opt.map(|x| {
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| _____________^
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LL | | Some(x + 1)
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LL | | }
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LL | | ).unwrap_or(None);
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| |_____________________^
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:194:13
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LL | let _ = opt
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| _____________^
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LL | | .map(|x| Some(x + 1))
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LL | | .unwrap_or(None);
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| |________________________^
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= note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:205:13
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LL | let _ = Some("prefix").map(|p| format!("{}.", p)).unwrap_or(id);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `map(|p| format!("{}.", p)).unwrap_or(id)` with `map_or(id, |p| format!("{}.", p))`
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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
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--> $DIR/methods.rs:209:13
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LL | let _ = opt.map(|x| x + 1)
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| _____________^
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LL | | // Should lint even though this call is on a separate line.
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LL | | .unwrap_or_else(|| 0);
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| |____________________________________^
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= note: `-D clippy::option-map-unwrap-or-else` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or_else(|| 0)` with `map_or_else(|| 0, |x| x + 1)`
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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
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--> $DIR/methods.rs:213:13
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LL | let _ = opt.map(|x| {
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| _____________^
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LL | | x + 1
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LL | | }
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LL | | ).unwrap_or_else(|| 0);
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| |____________________________________^
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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
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--> $DIR/methods.rs:217:13
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LL | let _ = opt.map(|x| x + 1)
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| _____________^
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LL | | .unwrap_or_else(||
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LL | | 0
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LL | | );
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| |_________________^
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error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
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--> $DIR/methods.rs:247:13
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LL | let _ = v.iter().filter(|&x| *x < 0).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::filter-next` implied by `-D warnings`
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= note: replace `filter(|&x| *x < 0).next()` with `find(|&x| *x < 0)`
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error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
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--> $DIR/methods.rs:250:13
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LL | let _ = v.iter().filter(|&x| {
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| _____________^
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LL | | *x < 0
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LL | | }
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LL | | ).next();
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| |___________________________^
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error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:266:13
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LL | let _ = v.iter().find(|&x| *x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::search-is-some` implied by `-D warnings`
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= note: replace `find(|&x| *x < 0).is_some()` with `any(|x| *x < 0)`
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error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:269:13
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LL | let _ = v.iter().find(|&x| {
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| _____________^
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LL | | *x < 0
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LL | | }
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LL | | ).is_some();
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| |______________________________^
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error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:275:13
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LL | let _ = v.iter().position(|&x| x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `position(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
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error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:278:13
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LL | let _ = v.iter().position(|&x| {
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| _____________^
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LL | | x < 0
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LL | | }
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LL | | ).is_some();
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| |______________________________^
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error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:284:13
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LL | let _ = v.iter().rposition(|&x| x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `rposition(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
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error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:287:13
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LL | let _ = v.iter().rposition(|&x| {
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| _____________^
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LL | | x < 0
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LL | | }
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LL | | ).is_some();
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| |______________________________^
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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:302:13
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LL | let _ = opt.unwrap();
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| ^^^^^^^^^^^^
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= note: `-D clippy::option-unwrap-used` implied by `-D warnings`
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error: aborting due to 21 previous errors
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