librustc: Fix type_use for generic newtype structs. Closes #4188. rs=bugfix
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@ -139,7 +139,18 @@ fn type_uses_for(ccx: @crate_ctxt, fn_id: def_id, n_tps: uint)
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ast_map::node_dtor(_, dtor, _, _) => {
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handle_body(cx, dtor.node.body);
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}
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_ => fail ~"unknown node type in type_use"
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ast_map::node_struct_ctor(*) => {
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// Similarly to node_variant, this monomorphized function just uses
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// the representations of all of its type parameters.
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for uint::range(0, n_tps) |n| { cx.uses[n] |= use_repr; }
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}
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_ => {
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ccx.tcx.sess.bug(fmt!("unknown node type in type_use: %s",
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ast_map::node_id_to_str(
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ccx.tcx.items,
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fn_id_loc.node,
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ccx.tcx.sess.parse_sess.interner)));
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}
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}
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let uses = vec::from_mut(copy cx.uses);
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ccx.type_use_cache.insert(fn_id, uses);
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@ -0,0 +1,7 @@
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struct S<T>(T);
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fn main() {
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let s = S(2);
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io::println(s.to_str());
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}
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