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| -rw-r--r-- | src/librustc_error_codes/error_codes/E0192.md | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/librustc_error_codes/error_codes/E0192.md b/src/librustc_error_codes/error_codes/E0192.md index 33308868cb2..5fd951b2e86 100644 --- a/src/librustc_error_codes/error_codes/E0192.md +++ b/src/librustc_error_codes/error_codes/E0192.md @@ -1,3 +1,19 @@ +A negative impl was added on a trait implementation. + +Erroneous code example: + +```compile_fail,E0192 +trait Trait { + type Bar; +} + +struct Foo; + +impl !Trait for Foo { } //~ ERROR E0192 + +fn main() {} +``` + Negative impls are only allowed for auto traits. For more information see the [opt-in builtin traits RFC][RFC 19]. |