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New scoping rules for safe destruction #21022

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New scoping rules for safe destruction #21022

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e48786b
Refactored librustc_trans to avoid stack-crossing ref cycle.
pnkfelix Jan 9, 2015
9054273
librustc_trans: accommodate `make tidy` post cycle-breaking refactoring.
pnkfelix Jan 12, 2015
c5dde23
improve `compiletest` error message when path option missing.
pnkfelix Dec 22, 2014
56c39ae
fixes for new rules for lifetimes and destructors.
pnkfelix Dec 13, 2014
8ee3c94
Moved bindings for `taken` and `life_giver` to suit new lifetime rules.
pnkfelix Jan 12, 2015
9a3cb06
rustc_typeck::check::method::probe fixes for new lifetime/dtor rules.
pnkfelix Jan 12, 2015
2e6b699
librustc_typeck::coherence accommodate new lifetime/dtor rules.
pnkfelix Jan 12, 2015
aee4a01
rustc_resolve: shift bindings to accommodate new lifetime/dtor rules.
pnkfelix Jan 12, 2015
382c070
rustc_driver: accommodate new lifetime/dtor rules.
pnkfelix Jan 12, 2015
591d8c8
Add `CodeExtent::Remainder` variant to track a suffix of a block.
pnkfelix Nov 25, 2014
b3c8d28
Port of pcwalton's dtor checker, with following modifications.
pnkfelix Oct 27, 2014
42618e7
checkpoint pcwalton test of new destructor static semantics.
pnkfelix Oct 27, 2014
2316d6c
a new regression test discovered during bootstrapping.
pnkfelix Jan 5, 2015
40b8428
port of pcwalton removal of `#[unsafe_destructor]` check.
pnkfelix Oct 27, 2014
52d9590
region.rs: remove unused variant from `InnermostEnclosingExpr`.
pnkfelix Jan 12, 2015
964db8d
librustc_typeck: remove unused imports
pnkfelix Jan 12, 2015
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checkpoint pcwalton test of new destructor static semantics.
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@pnkfelix
pnkfelix committed Jan 12, 2015
commit 42618e7f50f591eb1054e205d519a67065d0fba1
21 changes: 21 additions & 0 deletions src/test/compile-fail/destructor-restrictions.rs
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// Copyright 2014 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.

// Tests the new destructor semantics.

use std::cell::RefCell;

fn main() {
let b = {
let a = box RefCell::new(4i);
*a.borrow() + 1i //~ ERROR `*a` does not live long enough
};
println!("{}", b);
}