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//@ run-pass
//@ proc-macro: double.rs
//@ aux-build:external-crate-var.rs
#![allow(unused)]
#[macro_use]
extern crate double;
#[macro_use]
extern crate external_crate_var;
struct Foo;
trait Trait {
const CONST: u32;
type Assoc;
}
impl Trait for Foo {
const CONST: u32 = 0;
type Assoc = Foo;
}
macro_rules! local { () => {
// derive_Double outputs secondary copies of each definition
// to test what the proc_macro sees.
mod bar {
#[derive(Double)]
struct Bar($crate::Foo);
}
mod qself {
#[derive(Double)]
struct QSelf(<::Foo as $crate::Trait>::Assoc);
}
mod qself_recurse {
#[derive(Double)]
struct QSelfRecurse(<<$crate::Foo as $crate::Trait>::Assoc as $crate::Trait>::Assoc);
}
mod qself_in_const {
#[derive(Double)]
#[repr(u32)]
enum QSelfInConst {
Variant = <::Foo as $crate::Trait>::CONST,
}
}
} }
mod local {
local!();
}
// and now repeat the above tests, using a macro defined in another crate
mod external {
external!{}
}
fn main() {}
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