75 lines
1.4 KiB
Rust
75 lines
1.4 KiB
Rust
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// 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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struct Root {
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jsref: JSRef
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}
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impl Deref<JSRef> for Root {
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fn deref<'a>(&'a self) -> &'a JSRef {
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&self.jsref
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}
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}
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#[deriving(Copy)]
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struct JSRef {
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node: *const Node
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}
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impl Deref<Node> for JSRef {
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fn deref<'a>(&'a self) -> &'a Node {
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self.get()
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}
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}
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trait INode {
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fn RemoveChild(&self);
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}
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impl INode for JSRef {
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fn RemoveChild(&self) {
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self.get().RemoveChild(0)
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}
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}
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impl JSRef {
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fn AddChild(&self) {
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self.get().AddChild(0);
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}
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fn get<'a>(&'a self) -> &'a Node {
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unsafe {
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&*self.node
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}
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}
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}
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struct Node;
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impl Node {
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fn RemoveChild(&self, _a: uint) {
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}
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fn AddChild(&self, _a: uint) {
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}
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}
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fn main() {
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let n = Node;
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let jsref = JSRef { node: &n };
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let root = Root { jsref: jsref };
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root.AddChild();
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jsref.AddChild();
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root.RemoveChild();
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jsref.RemoveChild();
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}
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