diff options
Diffstat (limited to 'src/test/ui/proc-macro/nonterminal-expansion.rs')
-rw-r--r-- | src/test/ui/proc-macro/nonterminal-expansion.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/nonterminal-expansion.rs b/src/test/ui/proc-macro/nonterminal-expansion.rs new file mode 100644 index 000000000..e62155871 --- /dev/null +++ b/src/test/ui/proc-macro/nonterminal-expansion.rs @@ -0,0 +1,37 @@ +// check-pass +// compile-flags: -Z span-debug +// aux-build:test-macros.rs + +#![no_std] // Don't load unnecessary hygiene information from std +extern crate std; + +#[macro_use] +extern crate test_macros; + +macro_rules! pass_nonterminal { + ($line:expr) => { + #[print_attr_args(a, $line, b)] + struct S; + }; +} + +// `line!()` is not expanded before it's passed to the proc macro. +pass_nonterminal!(line!()); + +// Test case from #43860. + +#[macro_export] +macro_rules! use_contract { + ($name: ident, $path: expr) => { + #[derive(Empty)] + #[empty_helper(path = $path)] // OK + pub struct $name<T, C> { + api: T, + contract: C, + } + }; +} + +use_contract!(ContractName, file!()); + +fn main() {} |