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Diffstat (limited to 'crates/hir_def/src/macro_expansion_tests/mbe/matching.rs')
| -rw-r--r-- | crates/hir_def/src/macro_expansion_tests/mbe/matching.rs | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/crates/hir_def/src/macro_expansion_tests/mbe/matching.rs b/crates/hir_def/src/macro_expansion_tests/mbe/matching.rs index 9fb6d96b72..b93072d446 100644 --- a/crates/hir_def/src/macro_expansion_tests/mbe/matching.rs +++ b/crates/hir_def/src/macro_expansion_tests/mbe/matching.rs @@ -50,3 +50,56 @@ macro_rules! m{ ($fmt:expr) => (); } "#]], ); } + +#[test] +fn asi() { + // Thanks, Christopher! + // + // https://internals.rust-lang.org/t/understanding-decisions-behind-semicolons/15181/29 + check( + r#" +macro_rules! asi { ($($stmt:stmt)*) => ($($stmt)*); } + +fn main() { + asi! { + let a = 2 + let b = 5 + drop(b-a) + println!("{}", a+b) + } +} +"#, + expect![[r#" +macro_rules! asi { ($($stmt:stmt)*) => ($($stmt)*); } + +fn main() { + let a = 2let b = 5drop(b-a)println!("{}", a+b) +} +"#]], + ) +} + +#[test] +fn stmt_boundaries() { + // FIXME: this actually works OK under rustc. + check( + r#" +macro_rules! m { + ($($s:stmt)*) => (stringify!($($s |)*);) +} +m!(;;92;let x = 92; loop {};); +"#, + expect![[r#" +macro_rules! m { + ($($s:stmt)*) => (stringify!($($s |)*);) +} +stringify!(; +|; +|92|; +|let x = 92|; +|loop {} +|; +|); +"#]], + ); +} |