diff options
Diffstat (limited to 'src/test/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs')
-rw-r--r-- | src/test/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs b/src/test/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs new file mode 100644 index 000000000..ed94c27cf --- /dev/null +++ b/src/test/ui/macros/rfc-3086-metavar-expr/dollar-dollar-has-correct-behavior.rs @@ -0,0 +1,28 @@ +// run-pass + +#![feature(macro_metavar_expr)] + +macro_rules! nested { + ( $a:ident ) => { + macro_rules! $a { + ( $$( $b:ident ),* ) => { + $$( + macro_rules! $b { + ( $$$$( $c:ident ),* ) => { + $$$$( + fn $c() -> &'static str { stringify!($c) } + ),* + }; + } + )* + }; + } + }; +} + +fn main() { + nested!(a); + a!(b); + b!(c); + assert_eq!(c(), "c"); +} |