42 lines
796 B
Rust
42 lines
796 B
Rust
#![feature(custom_attribute, box_syntax)]
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#![allow(dead_code, unused_attributes)]
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use std::cell::{Cell, RefCell};
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use std::rc::Rc;
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use std::sync::Arc;
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#[miri_run]
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fn rc_cell() -> Rc<Cell<i32>> {
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let r = Rc::new(Cell::new(42));
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let x = r.get();
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r.set(x + x);
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r
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}
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// TODO(solson): also requires destructors to run for the second borrow to work
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// TODO(solson): needs StructWrappedNullablePointer support
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// #[miri_run]
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// fn rc_refcell() -> i32 {
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// let r = Rc::new(RefCell::new(42));
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// *r.borrow_mut() += 10;
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// let x = *r.borrow();
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// x
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// }
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#[miri_run]
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fn arc() -> Arc<i32> {
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let a = Arc::new(42);
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a
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}
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#[miri_run]
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fn true_assert() {
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assert_eq!(1, 1);
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}
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#[miri_run]
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fn main() {
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assert_eq!(*arc(), 42);
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assert_eq!(rc_cell().get(), 84);
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}
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