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type-macros-simple.rs
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type-macros-simple.rs
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//@ run-pass
#![allow(dead_code)]
#![allow(unused_variables)]
#![allow(non_local_definitions)]
macro_rules! Tuple {
{ $A:ty,$B:ty } => { ($A, $B) }
}
fn main() {
let x: Tuple!(i32, i32) = (1, 2);
}
fn issue_36540() {
let i32 = 0;
macro_rules! m { () => { i32 } }
struct S<T = m!()>(m!(), T) where T: Trait<m!()>;
let x: m!() = m!();
std::cell::Cell::<m!()>::new(m!());
impl<T> std::ops::Index<m!()> for dyn Trait<(m!(), T)>
where T: Trait<m!()>
{
type Output = m!();
fn index(&self, i: m!()) -> &m!() {
unimplemented!()
}
}
}
trait Trait<T> {}
impl Trait<i32> for i32 {}
// ferrocene-annotations: fls_xa7lp0zg1ol2
// Declarative Macros
//
// ferrocene-annotations: fls_8nzypdu9j3ge
// Metavariables
//
// ferrocene-annotations: fls_wjldgtio5o75
// Macro Expansion
//
// ferrocene-annotations: fls_vnvt40pa48n8
// Macro Invocation
//
// ferrocene-annotations: fls_4apk1exafxii
// Macro Matching
//
// ferrocene-annotations: fls_ym00b6ewf4n3
// Macro Transcription
//
// ferrocene-annotations: fls_n3ktmjqf87qb
// Rule Matching
//
// ferrocene-annotations: fls_qpx6lgapce57
// Token Matching