Absolute path to refer to core crate in compile_error expansion

dtolnay · Mar 30, 2023 · cc7cf99 · cc7cf99
1 parent 4d1fd26
commit cc7cf99
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/src/error.rs b/src/error.rs
@@ -278,8 +278,18 @@ impl ErrorMessage {
             None => (Span::call_site(), Span::call_site()),
         };
 
-        // core::compile_error!($message)
+        // ::core::compile_error!($message)
         TokenStream::from_iter(vec![
+            TokenTree::Punct({
+                let mut punct = Punct::new(':', Spacing::Joint);
+                punct.set_span(start);
+                punct
+            }),
+            TokenTree::Punct({
+                let mut punct = Punct::new(':', Spacing::Alone);
+                punct.set_span(start);
+                punct
+            }),
             TokenTree::Ident(Ident::new("core", start)),
             TokenTree::Punct({
                 let mut punct = Punct::new(':', Spacing::Joint);