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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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+
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+ #![ feature( unboxed_closures) ]
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+
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+ // Tests that we can't move out of an unboxed closure environment
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+ // if the upvar is captured by ref or the closure takes self by
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+ // reference.
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+
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+ fn main ( ) {
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+ // By-ref cases
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+ {
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+ let x = box 0 u;
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+ let f = |& : | drop( x) ; //~ cannot move
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+ }
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+ {
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+ let x = box 0 u;
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+ let f = |& mut : | drop( x) ; //~ cannot move
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+ }
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+ {
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+ let x = box 0 u;
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+ let f = |: | drop ( x) ; //~ cannot move
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+ }
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+ // By-value cases
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+ {
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+ let x = box 0 u;
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+ let f = move |& : | drop( x) ; //~ cannot move
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+ }
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+ {
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+ let x = box 0 u;
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+ let f = move |& mut : | drop( x) ; //~ cannot move
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+ }
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+ {
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+ let x = box 0 u;
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+ let f = move |: | drop ( x) ; // this one is ok
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+ }
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+ }
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