File: 118603.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (44 lines) | stat: -rw-r--r-- 1,025 bytes parent folder | download | duplicates (3)
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
38
39
40
41
42
43
44
//@ known-bug: #118603
//@ compile-flags: -Copt-level=0
// ignore-tidy-linelength

#![feature(generic_const_exprs)]
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
struct FlatTree;

#[derive(Copy, Clone)]
struct TreeLeaf;

#[derive(Copy, Clone)]
struct TreeNode<V, W>(V, W);

const fn const_concat<const A: usize, const B: usize>(_: [FlatTree; A], _: [FlatTree; B]) -> [FlatTree; A + B] {
    [FlatTree; A + B]
}

struct Builder<const N: usize, I> {
    ops: [FlatTree; N],
    builder: I,
}

fn create_node<const N: usize, const M: usize, A, B>(a: Builder<N, A>, b: Builder<M, B>) -> Builder<{ N + M + 1 }, TreeNode<A, B>> {
    Builder {
        ops: const_concat(const_concat::<N, M>(a.ops, b.ops), [FlatTree]),
        builder: TreeNode(a.builder, b.builder),
    }
}

const LEAF: Builder<1, TreeLeaf> = Builder {
    ops: [FlatTree],
    builder: TreeLeaf,
};

static INTERNAL_SIMPLE_BOOLEAN_TEMPLATES: &[fn()] = &[{
    fn eval() {
        create_node(LEAF, create_node(LEAF, LEAF));
    }

    eval
}];

pub fn main() {}