diff options
Diffstat (limited to 'compiler/rustc_ast_lowering/src/lib.rs')
| -rw-r--r-- | compiler/rustc_ast_lowering/src/lib.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index 5266eb0e91f..d13e26d2510 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -494,9 +494,14 @@ enum AllowReturnTypeNotation { } enum GenericArgsMode { + /// Allow paren sugar, don't allow RTN. ParenSugar, + /// Allow RTN, don't allow paren sugar. ReturnTypeNotation, + // Error if parenthesized generics or RTN are encountered. Err, + /// Silence errors when lowering generics. Only used with `Res::Err`. + Silence, } impl<'a, 'hir> LoweringContext<'a, 'hir> { |