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Associate each path in a use declaration with the item in the AST map #25791

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May 27, 2015
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10 changes: 10 additions & 0 deletions src/libsyntax/ast_map/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -714,6 +714,16 @@ impl<'ast> Visitor<'ast> for NodeCollector<'ast> {
self.insert(ti.id, NodeTraitItem(ti));
}
}
ItemUse(ref view_path) => {
match view_path.node {
ViewPathList(_, ref paths) => {
for path in paths {
self.insert(path.node.id(), NodeItem(i));
}
}
_ => ()
}
}
_ => {}
}
visit::walk_item(self, i);
Expand Down
19 changes: 19 additions & 0 deletions src/test/compile-fail/use-paths-as-items.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// Each path node in a `use` declaration must be treated as an item. If not, the following code
// will trigger an ICE.
//
// Related issue: #25763

use std::{mem, ptr};
use std::mem; //~ ERROR has already been imported

fn main() {}