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| author | Ariel Ben-Yehuda <ariel.byd@gmail.com> | 2017-08-31 22:52:49 +0300 |
|---|---|---|
| committer | Ariel Ben-Yehuda <ariel.byd@gmail.com> | 2017-09-03 13:10:54 +0300 |
| commit | 291b4eddcefd1d6da1010f8a1f02f05338a44050 (patch) | |
| tree | ba9a44f1e16425d7984a1e32bade04a6f23c3323 /src/libcore/ops | |
| parent | efa09ea554575cd0b4ce01ada44fce730c0f7ac4 (diff) | |
| download | rust-291b4eddcefd1d6da1010f8a1f02f05338a44050.tar.gz rust-291b4eddcefd1d6da1010f8a1f02f05338a44050.zip | |
add error message for the other case too
Diffstat (limited to 'src/libcore/ops')
| -rw-r--r-- | src/libcore/ops/try.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libcore/ops/try.rs b/src/libcore/ops/try.rs index 28e84d2fba6..e788b66a1ec 100644 --- a/src/libcore/ops/try.rs +++ b/src/libcore/ops/try.rs @@ -27,7 +27,12 @@ message="the `?` operator can only be used in a \ function that returns `Result` \ (or another type that implements `{Try}`)", - label="cannot use the `?` operator in a function that returns `{Self}`")))] + label="cannot use the `?` operator in a function that returns `{Self}`"), + on(all(from_method="into_result", from_desugaring="?"), + message="the `?` operator can only be applied to values \ + that implement `{Try}`", + label="the `?` operator cannot be applied to type `{Self}`") +))] pub trait Try { /// The type of this value when viewed as successful. #[unstable(feature = "try_trait", issue = "42327")] |