nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2024-11-26 16:54:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

Reject generic arguments on mod style interpolated path

Browse Source
This commit is contained in:
David Tolnay 2021-11-22 20:16:28 -08:00
parent 0cbb00f898
commit 87a7defa8e
No known key found for this signature in database
GPG Key ID: F9BA143B95FF6D82
1 changed files with 24 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
compiler/rustc_parse/src/parser/path.rs
View File

@ -139,19 +139,32 @@ impl<'a> Parser<'a> {
style: PathStyle,
ty_generics: Option<&Generics>,
) -> PResult<'a, Path> {
maybe_whole!(self, NtPath, |path| {
let reject_generics_if_mod_style = |parser: &Parser<'_>, path: &Path| {
// Ensure generic arguments don't end up in attribute paths, such as:
//
// macro_rules! m {
// ($p:path) => { #[$p] struct S; }
// }
//
// m!(inline<u8>); //~ ERROR: unexpected generic arguments in path
//
if style == PathStyle::Mod && path.segments.iter().any(|segment| segment.args.is_some())
{
self.struct_span_err(
path.segments
.iter()
.filter_map(|segment| segment.args.as_ref())
.map(|arg| arg.span())
.collect::<Vec<_>>(),
"unexpected generic arguments in path",
)
.emit();
parser
.struct_span_err(
path.segments
.iter()
.filter_map(|segment| segment.args.as_ref())
.map(|arg| arg.span())
.collect::<Vec<_>>(),
"unexpected generic arguments in path",
)
.emit();
}
};
maybe_whole!(self, NtPath, |path| {
reject_generics_if_mod_style(self, &path);
path
});
@ -160,6 +173,7 @@ impl<'a> Parser<'a> {
if let ast::TyKind::Path(None, path) = &ty.kind {
let path = path.clone();
self.bump();
reject_generics_if_mod_style(self, &path);
return Ok(path);
}
}