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Add error-annotations in tests for unnecessary_fallible_conversions

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This commit is contained in:
roife 2024-01-02 01:23:44 +08:00
parent 094ce3de3e
commit 1cce757672
3 changed files with 60 additions and 10 deletions
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25
tests/ui/unnecessary_fallible_conversions.fixed
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@ -1,18 +1,43 @@
#![warn(clippy::unnecessary_fallible_conversions)]
fn main() {
// --- TryFromMethod `T::try_from(u)` ---
let _: i64 = 0i32.into();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _: i64 = 0i32.into();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryFromFunction `T::try_from(U)` ---
let _ = i64::from(0i32);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _ = i64::from(0i32);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryIntoFunction `U::try_into(t)` ---
let _: i64 = i32::into(0);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _: i64 = i32::into(0i32);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryFromFunction `<T as TryFrom<U>>::try_from(U)` ---
let _ = <i64 as From<i32>>::from(0);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _ = <i64 as From<i32>>::from(0);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryIntoFunction `<U as TryInto<_>>::try_into(U)` ---
let _: i64 = <i32 as Into<_>>::into(0);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _: i64 = <i32 as Into<_>>::into(0);
//~^ ERROR: use of a fallible conversion when an infallible one could be used
}

25
tests/ui/unnecessary_fallible_conversions.rs
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@ -1,18 +1,43 @@
#![warn(clippy::unnecessary_fallible_conversions)]
fn main() {
// --- TryFromMethod `T::try_from(u)` ---
let _: i64 = 0i32.try_into().unwrap();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _: i64 = 0i32.try_into().expect("can't happen");
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryFromFunction `T::try_from(U)` ---
let _ = i64::try_from(0i32).unwrap();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _ = i64::try_from(0i32).expect("can't happen");
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryIntoFunction `U::try_into(t)` ---
let _: i64 = i32::try_into(0).unwrap();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _: i64 = i32::try_into(0i32).expect("can't happen");
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryFromFunction `<T as TryFrom<U>>::try_from(U)` ---
let _ = <i64 as TryFrom<i32>>::try_from(0).unwrap();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _ = <i64 as TryFrom<i32>>::try_from(0).expect("can't happen");
//~^ ERROR: use of a fallible conversion when an infallible one could be used
// --- TryIntoFunction `<U as TryInto<_>>::try_into(U)` ---
let _: i64 = <i32 as TryInto<_>>::try_into(0).unwrap();
//~^ ERROR: use of a fallible conversion when an infallible one could be used
let _: i64 = <i32 as TryInto<_>>::try_into(0).expect("can't happen");
//~^ ERROR: use of a fallible conversion when an infallible one could be used
}

20
tests/ui/unnecessary_fallible_conversions.stderr
View File

@ -1,5 +1,5 @@
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:4:23
--> $DIR/unnecessary_fallible_conversions.rs:6:23
|
LL | let _: i64 = 0i32.try_into().unwrap();
| ^^^^^^^^^^^^^^^^^^^
@ -14,7 +14,7 @@ LL + let _: i64 = 0i32.into();
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:5:23
--> $DIR/unnecessary_fallible_conversions.rs:9:23
|
LL | let _: i64 = 0i32.try_into().expect("can't happen");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -27,7 +27,7 @@ LL + let _: i64 = 0i32.into();
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:7:13
--> $DIR/unnecessary_fallible_conversions.rs:14:13
|
LL | let _ = i64::try_from(0i32).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -40,7 +40,7 @@ LL + let _ = i64::from(0i32);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:8:13
--> $DIR/unnecessary_fallible_conversions.rs:17:13
|
LL | let _ = i64::try_from(0i32).expect("can't happen");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -53,7 +53,7 @@ LL + let _ = i64::from(0i32);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:10:18
--> $DIR/unnecessary_fallible_conversions.rs:22:18
|
LL | let _: i64 = i32::try_into(0).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^
@ -66,7 +66,7 @@ LL + let _: i64 = i32::into(0);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:11:18
--> $DIR/unnecessary_fallible_conversions.rs:25:18
|
LL | let _: i64 = i32::try_into(0i32).expect("can't happen");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -79,7 +79,7 @@ LL + let _: i64 = i32::into(0i32);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:13:13
--> $DIR/unnecessary_fallible_conversions.rs:30:13
|
LL | let _ = <i64 as TryFrom<i32>>::try_from(0).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -92,7 +92,7 @@ LL + let _ = <i64 as From<i32>>::from(0);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:14:13
--> $DIR/unnecessary_fallible_conversions.rs:33:13
|
LL | let _ = <i64 as TryFrom<i32>>::try_from(0).expect("can't happen");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -105,7 +105,7 @@ LL + let _ = <i64 as From<i32>>::from(0);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:16:18
--> $DIR/unnecessary_fallible_conversions.rs:38:18
|
LL | let _: i64 = <i32 as TryInto<_>>::try_into(0).unwrap();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -118,7 +118,7 @@ LL + let _: i64 = <i32 as Into<_>>::into(0);
|
error: use of a fallible conversion when an infallible one could be used
--> $DIR/unnecessary_fallible_conversions.rs:17:18
--> $DIR/unnecessary_fallible_conversions.rs:41:18
|
LL | let _: i64 = <i32 as TryInto<_>>::try_into(0).expect("can't happen");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^