diff options
| author | Esteban Küber <esteban@kuber.com.ar> | 2020-08-14 12:08:49 -0700 |
|---|---|---|
| committer | Esteban Küber <esteban@kuber.com.ar> | 2020-08-14 12:08:49 -0700 |
| commit | 0afb9c28bb80467cf2af8e9cd1f1b6af63744004 (patch) | |
| tree | c07f5a0bcff9ff02cf58b3fca552e78be1ae978b /src/test/ui/error-codes | |
| parent | 3df25ae186e89c885d9a71cd37fbd7a37e39fc85 (diff) | |
| download | rust-0afb9c28bb80467cf2af8e9cd1f1b6af63744004.tar.gz rust-0afb9c28bb80467cf2af8e9cd1f1b6af63744004.zip | |
Tweak output of E0225
When encountering multiple non-auto trait bounds suggest creating a new trait and explain what auto-traits are.
Diffstat (limited to 'src/test/ui/error-codes')
| -rw-r--r-- | src/test/ui/error-codes/E0225.stderr | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/test/ui/error-codes/E0225.stderr b/src/test/ui/error-codes/E0225.stderr index c7a66c327f1..435a2c93962 100644 --- a/src/test/ui/error-codes/E0225.stderr +++ b/src/test/ui/error-codes/E0225.stderr @@ -2,12 +2,12 @@ error[E0225]: only auto traits can be used as additional traits in a trait objec --> $DIR/E0225.rs:6:36 | LL | let _: Box<dyn std::io::Read + std::io::Write>; - | ------------- ^^^^^^^^^^^^^^ - | | | - | | additional non-auto trait - | | trait alias used in trait object type (additional use) + | ------------- ^^^^^^^^^^^^^^ additional non-auto trait + | | | first non-auto trait - | trait alias used in trait object type (first use) + | + = help: consider creating a new trait with all of these as super-traits and using that trait here instead: `trait NewTrait: std::io::Read + std::io::Write {}` + = note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits> error[E0225]: only auto traits can be used as additional traits in a trait object --> $DIR/E0225.rs:8:20 @@ -22,6 +22,9 @@ LL | let _: Box<dyn Foo>; | | | trait alias used in trait object type (additional use) | trait alias used in trait object type (first use) + | + = help: consider creating a new trait with all of these as super-traits and using that trait here instead: `trait NewTrait: std::io::Read + std::io::Write {}` + = note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits> error: aborting due to 2 previous errors |