1var rt_val: [5]u32 = .{ 1, 2, 3, 4, 5 };
 2
 3comptime {
 4    _ = rt_val; // fine
 5}
 6
 7comptime {
 8    const a = rt_val; // error
 9    _ = a;
10}
11
12comptime {
13    const l = rt_val.len; // fine
14    @compileLog(l);
15}
16
17export fn foo() void {
18    _ = comptime rt_val; // error
19}
20
21export fn bar() void {
22    const l = comptime rt_val.len; // fine
23    @compileLog(l);
24}
25
26export fn baz() void {
27    const S = struct {
28        fn inner() void {
29            _ = comptime rt_val;
30        }
31    };
32    comptime S.inner(); // fine; inner comptime is a nop
33    S.inner(); // error
34}
35
36export fn qux() void {
37    const S = struct {
38        fn inner() void {
39            const a = rt_val;
40            _ = a;
41        }
42    };
43    S.inner(); // fine; everything is runtime
44    comptime S.inner(); // error
45}
46
47// error
48//
49// :8:15: error: unable to resolve comptime value
50// :7:1: note: 'comptime' keyword forces comptime evaluation
51// :18:9: error: unable to resolve comptime value
52// :18:9: note: 'comptime' keyword forces comptime evaluation
53// :29:17: error: unable to resolve comptime value
54// :29:17: note: 'comptime' keyword forces comptime evaluation
55// :39:23: error: unable to resolve comptime value
56// :44:21: note: called at comptime from here
57// :44:5: note: 'comptime' keyword forces comptime evaluation
58//
59// Compile Log Output:
60// @as(usize, 5)
61// @as(usize, 5)