| // Copyright 2017 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. |
| |
| // ignore-wasm32-bare compiled with panic=abort by default |
| |
| #![feature(box_syntax)] |
| |
| fn main() { |
| let x = box S::new(); |
| drop(x); |
| } |
| |
| struct S; |
| |
| impl S { |
| fn new() -> Self { S } |
| } |
| |
| impl Drop for S { |
| fn drop(&mut self) { |
| println!("splat!"); |
| } |
| } |
| |
| // END RUST SOURCE |
| // START rustc.main.ElaborateDrops.before.mir |
| // let mut _0: (); |
| // scope 1 { |
| // } |
| // scope 2 { |
| // let _1: std::boxed::Box<S>; |
| // } |
| // let mut _2: std::boxed::Box<S>; |
| // let mut _3: (); |
| // let mut _4: std::boxed::Box<S>; |
| // |
| // bb0: { |
| // StorageLive(_1); |
| // StorageLive(_2); |
| // _2 = Box(S); |
| // (*_2) = const S::new() -> [return: bb2, unwind: bb3]; |
| // } |
| // |
| // bb1: { |
| // resume; |
| // } |
| // |
| // bb2: { |
| // _1 = move _2; |
| // drop(_2) -> bb4; |
| // } |
| // |
| // bb3: { |
| // drop(_2) -> bb1; |
| // } |
| // |
| // bb4: { |
| // StorageDead(_2); |
| // StorageLive(_4); |
| // _4 = move _1; |
| // _3 = const std::mem::drop(move _4) -> [return: bb5, unwind: bb7]; |
| // } |
| // |
| // bb5: { |
| // drop(_4) -> [return: bb8, unwind: bb6]; |
| // } |
| // |
| // bb6: { |
| // drop(_1) -> bb1; |
| // } |
| // |
| // bb7: { |
| // drop(_4) -> bb6; |
| // } |
| // |
| // bb8: { |
| // StorageDead(_4); |
| // _0 = (); |
| // drop(_1) -> bb9; |
| // } |
| // |
| // bb9: { |
| // StorageDead(_1); |
| // return; |
| // } |
| // } |
| // END rustc.main.ElaborateDrops.before.mir |