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26 lines
614 B
Rust
26 lines
614 B
Rust
// run-pass
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#![allow(dead_code)]
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// Test that `&PrinterSupport`, which is really short for `&'a
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// PrinterSupport<'b>`, gets properly expanded when it appears in a
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// closure type. This used to result in messed up De Bruijn indices.
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// pretty-expanded FIXME #23616
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trait PrinterSupport<'ast> {
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fn ast_map(&self) -> Option<&'ast usize> { None }
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}
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struct NoAnn<'ast> {
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f: Option<&'ast usize>
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}
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impl<'ast> PrinterSupport<'ast> for NoAnn<'ast> {
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}
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fn foo<'ast, G>(f: Option<&'ast usize>, g: G) where G: FnOnce(&dyn PrinterSupport) {
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let annotation = NoAnn { f: f };
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g(&annotation)
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}
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fn main() {}
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