bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Auto merge of #114452 - weiznich:feature/diagnostic_on_unimplemented, r=compiler-errors

Browse source 
`#[diagnostic::on_unimplemented]` without filters

This commit adds support for a `#[diagnostic::on_unimplemented]` attribute with the following options:

* `message` to customize the primary error message
* `note` to add a customized note message to an error message
* `label` to customize the label part of the error message

The relevant behavior is specified in [RFC-3366](https://rust-lang.github.io/rfcs/3366-diagnostic-attribute-namespace.html)
This commit is contained in:
bors 2023-09-17 10:00:15 +00:00
commit 327e6cf55c
18 changed files with 360 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

16
compiler/rustc_ast/src/attr/mod.rs
View file

@ -99,6 +99,22 @@ impl Attribute {
}
}
pub fn path_matches(&self, name: &[Symbol]) -> bool {
match &self.kind {
AttrKind::Normal(normal) => {
normal.item.path.segments.len() == name.len()
&& normal
.item
.path
.segments
.iter()
.zip(name)
.all(|(s, n)| s.args.is_none() && s.ident.name == *n)
}
AttrKind::DocComment(..) => false,
}
}
pub fn is_word(&self) -> bool {
if let AttrKind::Normal(normal) = &self.kind {
matches!(normal.item.args, AttrArgs::Empty)