// Basic test for liveness constraints: the region (`R1`) that appears // in the type of `p` includes the points after `&v[0]` up to (but not // including) the call to `use_x`. The `else` branch is not included. #![allow(warnings)] #![feature(rustc_attrs)] struct MyStruct { field: String } fn foo1() { let mut my_struct = MyStruct { field: format!("Hello") }; let value = &my_struct.field; if value.is_empty() { my_struct.field.push_str("Hello, world!"); } } fn foo2() { let mut my_struct = MyStruct { field: format!("Hello") }; let value = &my_struct.field; if value.is_empty() { my_struct.field.push_str("Hello, world!"); //~^ ERROR [E0502] } drop(value); } fn main() { }