File: recursive-enum.rs

package info (click to toggle)
rustc 1.92.0%2Bdfsg1-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 956,352 kB
  • sloc: xml: 158,148; javascript: 23,448; sh: 19,583; python: 15,739; ansic: 13,660; cpp: 7,009; asm: 4,376; makefile: 722; lisp: 180; sql: 15
file content (37 lines) | stat: -rw-r--r-- 815 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
//@ ignore-lldb

//@ compile-flags:-g
//@ disable-gdb-pretty-printers
// gdb-command:run

// Test whether compiling a recursive enum definition crashes debug info generation. The test case
// is taken from issue #11083 and #135093.

#![allow(unused_variables)]

pub struct Window<'a> {
    callbacks: WindowCallbacks<'a>
}

struct WindowCallbacks<'a> {
    pos_callback: Option<Box<FnMut(&Window, i32, i32) + 'a>>,
}

enum ExpandingRecursive<T> {
    Recurse(Indirect<T>),
    Item(T),
}

struct Indirect<U> {
    rec: *const ExpandingRecursive<Option<U>>,
}


fn main() {
    let x = WindowCallbacks { pos_callback: None };

    // EXPANDING RECURSIVE
    let expanding_recursive: ExpandingRecursive<u64> = ExpandingRecursive::Recurse(Indirect {
        rec: &ExpandingRecursive::Item(Option::Some(42)),
    });
}