diff options
| -rw-r--r-- | src/librustdoc/clean/mod.rs | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index f9b4d1435bd..be83338f675 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -895,8 +895,15 @@ fn clean_fn_decl_from_did_and_sig( ) -> FnDecl { let mut names = did.map_or(&[] as &[_], |did| cx.tcx.fn_arg_names(did)).iter(); + // We assume all empty tuples are default return type. This theoretically can discard `-> ()`, + // but shouldn't change any code meaning. + let output = match sig.skip_binder().output().clean(cx) { + Type::Tuple(inner) if inner.len() == 0 => DefaultReturn, + ty => Return(ty), + }; + FnDecl { - output: Return(sig.skip_binder().output().clean(cx)), + output, c_variadic: sig.skip_binder().c_variadic, inputs: Arguments { values: sig |