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Diffstat (limited to 'tests/ui/macros/same-sequence-span.rs')
-rw-r--r-- | tests/ui/macros/same-sequence-span.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/macros/same-sequence-span.rs b/tests/ui/macros/same-sequence-span.rs new file mode 100644 index 000000000..e0bb4d985 --- /dev/null +++ b/tests/ui/macros/same-sequence-span.rs @@ -0,0 +1,22 @@ +// aux-build:proc_macro_sequence.rs + +// Regression test for issue #62831: Check that multiple sequences with the same span in the +// left-hand side of a macro definition behave as if they had unique spans, and in particular that +// they don't crash the compiler. + +#![allow(unused_macros)] + +extern crate proc_macro_sequence; + +// When ignoring spans, this macro has the same macro definition as `generated_foo` in +// `proc_macro_sequence.rs`. +macro_rules! manual_foo { + (1 $x:expr $($y:tt,)* //~ERROR `$x:expr` may be followed by `$y:tt` + $(= $z:tt)* //~ERROR `$x:expr` may be followed by `=` + ) => {}; +} + +proc_macro_sequence::make_foo!(); //~ERROR `$x:expr` may be followed by `$y:tt` + //~^ERROR `$x:expr` may be followed by `=` + +fn main() {} |