about summary refs log tree commit diff
path: root/tests/ui/macros/metavar-expressions/count-empty-index-arg.rs
diff options
context:
space:
mode:
authorbors <bors@rust-lang.org>2025-07-01 05:31:05 +0000
committerbors <bors@rust-lang.org>2025-07-01 05:31:05 +0000
commitf46ce66fcc3d6058f90ac5bf0930f940f1e7b0ca (patch)
tree17a06668752fe94c0824b6b9788c02e7fbf56f1e /tests/ui/macros/metavar-expressions/count-empty-index-arg.rs
parent6988a8fea774a2a20ebebddb7dbf15dd6ef594f9 (diff)
parent3944c8ce447404dc45c00e125baf6bbbd728b501 (diff)
downloadrust-f46ce66fcc3d6058f90ac5bf0930f940f1e7b0ca.tar.gz
rust-f46ce66fcc3d6058f90ac5bf0930f940f1e7b0ca.zip
Auto merge of #143267 - matthiaskrgr:rollup-suvzar6, r=matthiaskrgr
Rollup of 8 pull requests

Successful merges:

 - rust-lang/rust#143125 (Disable f16 on Aarch64 without neon for llvm < 20.1.1)
 - rust-lang/rust#143156 (inherit `#[align]` from trait method prototypes)
 - rust-lang/rust#143178 (rustdoc default faviocon)
 - rust-lang/rust#143234 (Replace `ItemCtxt::report_placeholder_type_error` match with a call to `TyCtxt::def_descr`)
 - rust-lang/rust#143245 (mbe: Add tests and restructure metavariable expressions)
 - rust-lang/rust#143257 (Upgrade dependencies in run-make-support)
 - rust-lang/rust#143263 (linkify CodeSuggestion in doc comments)
 - rust-lang/rust#143264 (fix: Emit suggestion filename if primary diagnostic span is dummy)

Failed merges:

 - rust-lang/rust#143251 (bootstrap: add build.tidy-extra-checks option)

r? `@ghost`
`@rustbot` modify labels: rollup
Diffstat (limited to 'tests/ui/macros/metavar-expressions/count-empty-index-arg.rs')
-rw-r--r--tests/ui/macros/metavar-expressions/count-empty-index-arg.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/macros/metavar-expressions/count-empty-index-arg.rs b/tests/ui/macros/metavar-expressions/count-empty-index-arg.rs
new file mode 100644
index 00000000000..69880ee7fa9
--- /dev/null
+++ b/tests/ui/macros/metavar-expressions/count-empty-index-arg.rs
@@ -0,0 +1,16 @@
+// Issue: https://github.com/rust-lang/rust/issues/111904
+// Ensure that a trailing `,` is not interpreted as a `0`.
+
+#![feature(macro_metavar_expr)]
+
+macro_rules! foo {
+    ( $( $($t:ident),* );* ) => { ${count($t,)} }
+    //~^ ERROR `count` followed by a comma must have an associated
+    //~| ERROR expected expression, found `$`
+}
+
+fn test() {
+    foo!(a, a; b, b);
+}
+
+fn main() {}