rust/tests/ui/macros/same-sequence-span.rs
2024-02-16 20:02:50 +00:00

23 lines
799 B
Rust

//@ 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() {}