From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../ui/generator/yield-while-local-borrowed.rs | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/test/ui/generator/yield-while-local-borrowed.rs (limited to 'src/test/ui/generator/yield-while-local-borrowed.rs') diff --git a/src/test/ui/generator/yield-while-local-borrowed.rs b/src/test/ui/generator/yield-while-local-borrowed.rs new file mode 100644 index 000000000..061a64dbc --- /dev/null +++ b/src/test/ui/generator/yield-while-local-borrowed.rs @@ -0,0 +1,49 @@ +#![feature(generators, generator_trait)] + +use std::ops::{GeneratorState, Generator}; +use std::cell::Cell; +use std::pin::Pin; + +fn borrow_local_inline() { + // Not OK to yield with a borrow of a temporary. + // + // (This error occurs because the region shows up in the type of + // `b` and gets extended by region inference.) + let mut b = move || { + let a = &mut 3; + //~^ ERROR borrow may still be in use when generator yields + yield(); + println!("{}", a); + }; + Pin::new(&mut b).resume(()); +} + +fn borrow_local_inline_done() { + // No error here -- `a` is not in scope at the point of `yield`. + let mut b = move || { + { + let a = &mut 3; + } + yield(); + }; + Pin::new(&mut b).resume(()); +} + +fn borrow_local() { + // Not OK to yield with a borrow of a temporary. + // + // (This error occurs because the region shows up in the type of + // `b` and gets extended by region inference.) + let mut b = move || { + let a = 3; + { + let b = &a; + //~^ ERROR borrow may still be in use when generator yields + yield(); + println!("{}", b); + } + }; + Pin::new(&mut b).resume(()); +} + +fn main() { } -- cgit v1.2.3