mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-26 08:44:35 +00:00
30 lines
414 B
Rust
30 lines
414 B
Rust
// run-pass
|
|
use std::fmt;
|
|
|
|
struct Foo;
|
|
impl fmt::Debug for Foo {
|
|
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
|
|
println!("<Foo as Debug>::fmt()");
|
|
|
|
write!(fmt, "")
|
|
}
|
|
}
|
|
|
|
fn test1() {
|
|
let foo_str = format!("{:?}", Foo);
|
|
|
|
println!("{}", foo_str);
|
|
}
|
|
|
|
fn test2() {
|
|
println!("{:?}", Foo);
|
|
}
|
|
|
|
fn main() {
|
|
// This works fine
|
|
test1();
|
|
|
|
// This fails
|
|
test2();
|
|
}
|