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//@ run-pass
#![allow(dead_code)]
// Test that `&PrinterSupport`, which is really short for `&'a
// PrinterSupport<'b>`, gets properly expanded when it appears in a
// closure type. This used to result in messed up De Bruijn indices.
trait PrinterSupport<'ast> {
fn ast_map(&self) -> Option<&'ast usize> { None }
}
struct NoAnn<'ast> {
f: Option<&'ast usize>
}
impl<'ast> PrinterSupport<'ast> for NoAnn<'ast> {
}
fn foo<'ast, G>(f: Option<&'ast usize>, g: G) where G: FnOnce(&dyn PrinterSupport) {
let annotation = NoAnn { f: f };
g(&annotation)
}
fn main() {}
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