32 lines
1008 B
Rust
32 lines
1008 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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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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trait PrinterSupport<'ast> {
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fn ast_map(&self) -> Option<&'ast uint> { None }
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}
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struct NoAnn<'ast> {
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f: Option<&'ast uint>
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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 uint>, g: G) where G: FnOnce(&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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