278 lines
12 KiB
Text
278 lines
12 KiB
Text
error: useless conversion to the same type: `T`
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--> tests/ui/useless_conversion.rs:9:13
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LL | let _ = T::from(val);
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| ^^^^^^^^^^^^ help: consider removing `T::from()`: `val`
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note: the lint level is defined here
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--> tests/ui/useless_conversion.rs:1:9
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LL | #![deny(clippy::useless_conversion)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: useless conversion to the same type: `T`
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--> tests/ui/useless_conversion.rs:10:5
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LL | val.into()
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| ^^^^^^^^^^ help: consider removing `.into()`: `val`
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error: useless conversion to the same type: `i32`
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--> tests/ui/useless_conversion.rs:22:22
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LL | let _: i32 = 0i32.into();
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| ^^^^^^^^^^^ help: consider removing `.into()`: `0i32`
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error: useless conversion to the same type: `std::str::Lines<'_>`
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--> tests/ui/useless_conversion.rs:52:22
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LL | if Some("ok") == lines.into_iter().next() {}
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| ^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `lines`
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error: useless conversion to the same type: `std::str::Lines<'_>`
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--> tests/ui/useless_conversion.rs:57:21
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LL | let mut lines = text.lines().into_iter();
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `text.lines()`
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error: useless conversion to the same type: `std::str::Lines<'_>`
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--> tests/ui/useless_conversion.rs:63:22
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LL | if Some("ok") == text.lines().into_iter().next() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `text.lines()`
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error: useless conversion to the same type: `std::ops::Range<i32>`
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--> tests/ui/useless_conversion.rs:69:13
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LL | let _ = NUMBERS.into_iter().next();
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| ^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `NUMBERS`
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error: useless conversion to the same type: `std::ops::Range<i32>`
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--> tests/ui/useless_conversion.rs:74:17
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LL | let mut n = NUMBERS.into_iter();
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| ^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `NUMBERS`
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error: useless conversion to the same type: `std::string::String`
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--> tests/ui/useless_conversion.rs:136:21
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LL | let _: String = "foo".to_string().into();
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `"foo".to_string()`
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error: useless conversion to the same type: `std::string::String`
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--> tests/ui/useless_conversion.rs:137:21
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LL | let _: String = From::from("foo".to_string());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `From::from()`: `"foo".to_string()`
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error: useless conversion to the same type: `std::string::String`
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--> tests/ui/useless_conversion.rs:138:13
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LL | let _ = String::from("foo".to_string());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `"foo".to_string()`
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error: useless conversion to the same type: `std::string::String`
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--> tests/ui/useless_conversion.rs:139:13
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LL | let _ = String::from(format!("A: {:04}", 123));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `format!("A: {:04}", 123)`
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error: useless conversion to the same type: `std::str::Lines<'_>`
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--> tests/ui/useless_conversion.rs:140:13
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LL | let _ = "".lines().into_iter();
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| ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `"".lines()`
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error: useless conversion to the same type: `std::vec::IntoIter<i32>`
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--> tests/ui/useless_conversion.rs:141:13
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LL | let _ = vec![1, 2, 3].into_iter().into_iter();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `vec![1, 2, 3].into_iter()`
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error: useless conversion to the same type: `std::string::String`
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--> tests/ui/useless_conversion.rs:142:21
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LL | let _: String = format!("Hello {}", "world").into();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `format!("Hello {}", "world")`
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error: useless conversion to the same type: `i32`
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--> tests/ui/useless_conversion.rs:147:13
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LL | let _ = i32::from(a + b) * 3;
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| ^^^^^^^^^^^^^^^^ help: consider removing `i32::from()`: `(a + b)`
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error: useless conversion to the same type: `Foo<'a'>`
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--> tests/ui/useless_conversion.rs:153:23
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LL | let _: Foo<'a'> = s2.into();
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| ^^^^^^^^^ help: consider removing `.into()`: `s2`
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error: useless conversion to the same type: `Foo<'a'>`
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--> tests/ui/useless_conversion.rs:155:13
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LL | let _ = Foo::<'a'>::from(s3);
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| ^^^^^^^^^^^^^^^^^^^^ help: consider removing `Foo::<'a'>::from()`: `s3`
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error: useless conversion to the same type: `std::vec::IntoIter<Foo<'a'>>`
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--> tests/ui/useless_conversion.rs:157:13
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LL | let _ = vec![s4, s4, s4].into_iter().into_iter();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `vec![s4, s4, s4].into_iter()`
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:189:7
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LL | b(vec![1, 2].into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `vec![1, 2]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:179:13
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LL | fn b<T: IntoIterator<Item = i32>>(_: T) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:190:7
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LL | c(vec![1, 2].into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `vec![1, 2]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:180:18
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LL | fn c(_: impl IntoIterator<Item = i32>) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:191:7
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LL | d(vec![1, 2].into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `vec![1, 2]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:183:12
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LL | T: IntoIterator<Item = i32>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:194:7
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LL | b(vec![1, 2].into_iter().into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`s: `vec![1, 2]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:179:13
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LL | fn b<T: IntoIterator<Item = i32>>(_: T) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:195:7
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LL | b(vec![1, 2].into_iter().into_iter().into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`s: `vec![1, 2]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:179:13
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LL | fn b<T: IntoIterator<Item = i32>>(_: T) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:241:24
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LL | foo2::<i32, _>([1, 2, 3].into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `[1, 2, 3]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:220:12
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LL | I: IntoIterator<Item = i32> + Helper<X>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:249:14
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LL | foo3([1, 2, 3].into_iter());
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| ^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `[1, 2, 3]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:229:12
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LL | I: IntoIterator<Item = i32>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:258:16
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LL | S1.foo([1, 2].into_iter());
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| ^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `[1, 2]`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:255:27
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LL | pub fn foo<I: IntoIterator>(&self, _: I) {}
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| ^^^^^^^^^^^^
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error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
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--> tests/ui/useless_conversion.rs:277:44
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LL | v0.into_iter().interleave_shortest(v1.into_iter());
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| ^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `v1`
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note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
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--> tests/ui/useless_conversion.rs:264:20
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LL | J: IntoIterator,
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| ^^^^^^^^^^^^
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error: useless conversion to the same type: `()`
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--> tests/ui/useless_conversion.rs:304:58
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LL | let _: Result<(), std::io::Error> = test_issue_3913().map(Into::into);
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| ^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `std::io::Error`
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--> tests/ui/useless_conversion.rs:306:58
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LL | let _: Result<(), std::io::Error> = test_issue_3913().map_err(Into::into);
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| ^^^^^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `()`
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--> tests/ui/useless_conversion.rs:308:58
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LL | let _: Result<(), std::io::Error> = test_issue_3913().map(From::from);
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| ^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `std::io::Error`
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--> tests/ui/useless_conversion.rs:310:58
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LL | let _: Result<(), std::io::Error> = test_issue_3913().map_err(From::from);
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| ^^^^^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `()`
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--> tests/ui/useless_conversion.rs:314:31
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LL | let _: ControlFlow<()> = c.map_break(Into::into);
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| ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `()`
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--> tests/ui/useless_conversion.rs:317:31
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LL | let _: ControlFlow<()> = c.map_continue(Into::into);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `u32`
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--> tests/ui/useless_conversion.rs:331:41
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LL | let _: Vec<u32> = [1u32].into_iter().map(Into::into).collect();
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| ^^^^^^^^^^^^^^^^ help: consider removing
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error: useless conversion to the same type: `T`
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--> tests/ui/useless_conversion.rs:342:18
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LL | x.into_iter().map(Into::into).collect()
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| ^^^^^^^^^^^^^^^^ help: consider removing
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error: aborting due to 36 previous errors
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