rust/src/test/compile-fail/borrowck-pat-reassign-binding.rs
Niko Matsakis 013fc92423 remove alias analysis and replace with borrowck
This reverts commit 7ef825bb607c4e934c92bd0b73ecbc4c24f3286b.
2012-06-08 20:39:11 -07:00

14 lines
418 B
Rust

// xfail-pretty -- comments are infaithfully preserved
fn main() {
let mut x: option<int> = none;
alt x { //! NOTE loan of mutable local variable granted here
none {}
some(i) {
// Not ok: i is an outstanding ptr into x.
x = some(i+1); //! ERROR assigning to mutable local variable prohibited due to outstanding loan
}
}
copy x; // just to prevent liveness warnings
}