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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/proc-macro/auxiliary/resolved-located-at.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/proc-macro/auxiliary/resolved-located-at.rs')
-rw-r--r-- | src/test/ui/proc-macro/auxiliary/resolved-located-at.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/auxiliary/resolved-located-at.rs b/src/test/ui/proc-macro/auxiliary/resolved-located-at.rs new file mode 100644 index 000000000..db660824f --- /dev/null +++ b/src/test/ui/proc-macro/auxiliary/resolved-located-at.rs @@ -0,0 +1,31 @@ +// force-host +// no-prefer-dynamic + +#![feature(proc_macro_def_site)] +#![feature(proc_macro_diagnostic)] +#![feature(proc_macro_quote)] +#![crate_type = "proc-macro"] + +extern crate proc_macro; +use proc_macro::*; + +#[proc_macro] +pub fn resolve_located_at(input: TokenStream) -> TokenStream { + match &*input.into_iter().collect::<Vec<_>>() { + [a, b, ..] => { + // The error is reported at input `a`. + let mut diag = Diagnostic::new(Level::Error, "expected error"); + diag.set_spans(Span::def_site().located_at(a.span())); + diag.emit(); + + // Resolves to `struct S;` at def site, but the error is reported at input `b`. + let s = TokenTree::Ident(Ident::new("S", b.span().resolved_at(Span::def_site()))); + quote!({ + struct S; + + $s + }) + } + _ => panic!("unexpected input"), + } +} |