24 lines
678 B
Rust
24 lines
678 B
Rust
// Issue #2263.
|
|
|
|
// Should pass region checking.
|
|
fn ok(f: fn@(x: &uint)) {
|
|
// Here, g is a function that can accept a uint pointer with
|
|
// lifetime r, and f is a function that can accept a uint pointer
|
|
// with any lifetime. The assignment g = f should be OK (i.e.,
|
|
// f's type should be a subtype of g's type), because f can be
|
|
// used in any context that expects g's type. But this currently
|
|
// fails.
|
|
let mut g: fn@(y: &r/uint) = fn@(x: &r/uint) { };
|
|
g = f;
|
|
}
|
|
|
|
// This version is the same as above, except that here, g's type is
|
|
// inferred.
|
|
fn ok_inferred(f: fn@(x: &uint)) {
|
|
let mut g = fn@(x: &r/uint) { };
|
|
g = f;
|
|
}
|
|
|
|
fn main() {
|
|
}
|