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trans: Make collector handle the drop_in_place() intrinsic.
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src/test/codegen-units/item-collection/drop_in_place_intrinsic.rs
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// Copyright 2012-2015 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. | ||
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// ignore-tidy-linelength | ||
// compile-flags:-Zprint-trans-items=eager | ||
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//~ TRANS_ITEM drop-glue drop_in_place_intrinsic::StructWithDtor[0] | ||
//~ TRANS_ITEM drop-glue-contents drop_in_place_intrinsic::StructWithDtor[0] | ||
struct StructWithDtor(u32); | ||
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impl Drop for StructWithDtor { | ||
//~ TRANS_ITEM fn drop_in_place_intrinsic::{{impl}}[0]::drop[0] | ||
fn drop(&mut self) {} | ||
} | ||
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//~ TRANS_ITEM fn drop_in_place_intrinsic::main[0] | ||
fn main() { | ||
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//~ TRANS_ITEM drop-glue [drop_in_place_intrinsic::StructWithDtor[0]; 2] | ||
let x = [StructWithDtor(0), StructWithDtor(1)]; | ||
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drop_slice_in_place(&x); | ||
} | ||
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//~ TRANS_ITEM fn drop_in_place_intrinsic::drop_slice_in_place[0] | ||
fn drop_slice_in_place(x: &[StructWithDtor]) { | ||
unsafe { | ||
// This is the interesting thing in this test case: Normally we would | ||
// not have drop-glue for the unsized [StructWithDtor]. This has to be | ||
// generated though when the drop_in_place() intrinsic is used. | ||
//~ TRANS_ITEM drop-glue [drop_in_place_intrinsic::StructWithDtor[0]] | ||
::std::ptr::drop_in_place(x as *const _ as *mut [StructWithDtor]); | ||
} | ||
} |