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| author | Esteban Küber <esteban@kuber.com.ar> | 2019-07-25 10:11:03 -0700 |
|---|---|---|
| committer | Esteban Küber <esteban@kuber.com.ar> | 2019-07-25 10:11:03 -0700 |
| commit | 3ab60264b504c1f51b2a9e3dfa20ef0d03bcdaed (patch) | |
| tree | a922e98344f3cc316df05a21817add45b089570f /src/libcore/ops/function.rs | |
| parent | 03f19f7ff128a3b01eeab3f87f04cce22883f006 (diff) | |
| download | rust-3ab60264b504c1f51b2a9e3dfa20ef0d03bcdaed.tar.gz rust-3ab60264b504c1f51b2a9e3dfa20ef0d03bcdaed.zip | |
Add note suggesting to borrow a String argument to find
Diffstat (limited to 'src/libcore/ops/function.rs')
| -rw-r--r-- | src/libcore/ops/function.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libcore/ops/function.rs b/src/libcore/ops/function.rs index c69f5fd9896..b9552eaa1a0 100644 --- a/src/libcore/ops/function.rs +++ b/src/libcore/ops/function.rs @@ -137,6 +137,10 @@ pub trait Fn<Args> : FnMut<Args> { #[rustc_paren_sugar] #[rustc_on_unimplemented( on(Args="()", note="wrap the `{Self}` in a closure with no arguments: `|| {{ /* code */ }}"), + on( + all(Args="(char,)", _Self="std::string::String"), + note="borrowing the `{Self}` might fix the problem" + ), message="expected a `{FnMut}<{Args}>` closure, found `{Self}`", label="expected an `FnMut<{Args}>` closure, found `{Self}`", )] |