diff options
Diffstat (limited to 'src/test/ui/parser/issues/issue-65846-rollback-gating-failing-matcher.rs')
-rw-r--r-- | src/test/ui/parser/issues/issue-65846-rollback-gating-failing-matcher.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/parser/issues/issue-65846-rollback-gating-failing-matcher.rs b/src/test/ui/parser/issues/issue-65846-rollback-gating-failing-matcher.rs new file mode 100644 index 000000000..76c07bbfd --- /dev/null +++ b/src/test/ui/parser/issues/issue-65846-rollback-gating-failing-matcher.rs @@ -0,0 +1,15 @@ +// run-pass + +// Test that failing macro matchers will not cause pre-expansion errors +// even though they use a feature that is pre-expansion gated. + +#[allow(unused_macro_rules)] +macro_rules! m { + ($e:expr) => { 0 }; // This fails on the input below due to `, foo`. + ($e:expr,) => { 1 }; // This also fails to match due to `foo`. + (box $e:expr, foo) => { 2 }; // Successful matcher, we should get `2`. +} + +fn main() { + assert_eq!(2, m!(box 42, foo)); +} |