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try-back-block-type test: Use TryFromSliceError for From test #82233

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Merged
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Feb 21, 2021
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Merged

try-back-block-type test: Use TryFromSliceError for From test #82233

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2 changes: 1 addition & 1 deletion src/test/ui/try-block/try-block-bad-type.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
#![feature(try_blocks)]

pub fn main() {
let res: Result<u32, i32> = try {
let res: Result<u32, std::array::TryFromSliceError> = try {
Err("")?; //~ ERROR `?` couldn't convert the error
5
};
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10 changes: 3 additions & 7 deletions src/test/ui/try-block/try-block-bad-type.stderr
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@@ -1,16 +1,12 @@
error[E0277]: `?` couldn't convert the error to `i32`
error[E0277]: `?` couldn't convert the error to `TryFromSliceError`
--> $DIR/try-block-bad-type.rs:7:16
|
LL | Err("")?;
| ^ the trait `From<&str>` is not implemented for `i32`
| ^ the trait `From<&str>` is not implemented for `TryFromSliceError`
|
= note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
= help: the following implementations were found:
<i32 as From<NonZeroI32>>
<i32 as From<bool>>
<i32 as From<i16>>
<i32 as From<i8>>
and 2 others
<TryFromSliceError as From<Infallible>>
= note: required by `from`

error[E0271]: type mismatch resolving `<Result<i32, i32> as Try>::Ok == &str`
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