35 lines
827 B
Rust
35 lines
827 B
Rust
// Copyright 2012 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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type ctxt = { v: uint };
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trait get_ctxt {
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fn get_ctxt() -> &self/ctxt;
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}
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type has_ctxt = { c: &ctxt };
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impl has_ctxt: get_ctxt {
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fn get_ctxt() -> &self/ctxt {
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self.c
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}
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}
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fn get_v(gc: get_ctxt) -> uint {
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gc.get_ctxt().v
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}
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fn main() {
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let ctxt = { v: 22u };
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let hc = { c: &ctxt };
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assert get_v(hc as get_ctxt) == 22u;
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}
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