rust/tests/ui/infinite/infinite-autoderef.rs

use std::ops::Deref;

struct Foo;

impl Deref for Foo {
    type Target = Foo;

    fn deref(&self) -> &Foo {
        self
    }
}

pub fn main() {
    let mut x;
    loop {
        x = Box::new(x);
        //~^ ERROR overflow assigning `Box<_>` to `_`
        x.foo;
        x.bar();
    }

    Foo.foo;
    Foo.bar();
}
Introduce a common recursion limit for auto-dereference and monomorphization. 2014-03-06 20:37:24 +02:00			`use std::ops::Deref;`

			`struct Foo;`

core: use assoc types in `Deref[Mut]` 2015-01-01 14:53:20 -05:00			`impl Deref for Foo {`
			`type Target = Foo;`

librustc: Implement lifetime elision. This implements RFC 39. Omitted lifetimes in return values will now be inferred to more useful defaults, and an error is reported if a lifetime in a return type is omitted and one of the two lifetime elision rules does not specify what it should be. This primarily breaks two uncommon code patterns. The first is this: unsafe fn get_foo_out_of_thin_air() -> &Foo { ... } This should be changed to: unsafe fn get_foo_out_of_thin_air() -> &'static Foo { ... } The second pattern that needs to be changed is this: enum MaybeBorrowed<'a> { Borrowed(&'a str), Owned(String), } fn foo() -> MaybeBorrowed { Owned(format!("hello world")) } Change code like this to: enum MaybeBorrowed<'a> { Borrowed(&'a str), Owned(String), } fn foo() -> MaybeBorrowed<'static> { Owned(format!("hello world")) } Closes #15552. [breaking-change] 2014-07-17 21:44:59 -07:00			`fn deref(&self) -> &Foo {`
Introduce a common recursion limit for auto-dereference and monomorphization. 2014-03-06 20:37:24 +02:00			`self`
			`}`
			`}`

			`pub fn main() {`
			`let mut x;`
			`loop {`
Remove box syntax from most places in src/test outside of the issues dir 2021-08-25 02:39:40 +02:00			`x = Box::new(x);`
change error messages to be incorrect, but more helpful 2024-02-22 18:18:33 +01:00			//~^ ERROR overflow assigning `Box<_>` to `_`
Introduce a common recursion limit for auto-dereference and monomorphization. 2014-03-06 20:37:24 +02:00			`x.foo;`
			`x.bar();`
			`}`

			`Foo.foo;`
			`Foo.bar();`
			`}`