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Convert empty tuple to DefaultReturn in ty path

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Rune Tynan 2022-01-26 19:53:14 -05:00
parent 2f7b7d5f4a
commit 1c82e5ed9c
1 changed files with 8 additions and 1 deletions
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9
src/librustdoc/clean/mod.rs
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@ -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