bjoernager/rust
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Add an ErrorGuaranteed to ast::TyKind::Err.

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This makes it more like `hir::TyKind::Err`, and avoids a
`span_delayed_bug` call in `LoweringContext::lower_ty_direct`.

It also requires adding `ast::TyKind::Dummy`, now that
`ast::TyKind::Err` can't be used for that purpose in the absence of an
error emission.

There are a couple of cases that aren't as neat as I would have liked,
marked with `FIXME` comments.
This commit is contained in:
Nicholas Nethercote 2024-02-14 14:50:49 +11:00
parent 502ce8287b
commit 5233bc91da
14 changed files with 75 additions and 36 deletions
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7
compiler/rustc_ast_pretty/src/pprust/state.rs
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@ -1048,11 +1048,16 @@ impl<'a> State<'a> {
ast::TyKind::Infer => {
self.word("_");
}
ast::TyKind::Err => {
ast::TyKind::Err(_) => {
self.popen();
self.word("/*ERROR*/");
self.pclose();
}
ast::TyKind::Dummy => {
self.popen();
self.word("/*DUMMY*/");
self.pclose();
}
ast::TyKind::ImplicitSelf => {
self.word("Self");
}