cannot bitcast from enum to packed struct

[nektro]

Zig Version

0.12.0-dev.1828+225fe6ddb

Steps to Reproduce and Observed Behavior

test {
    const q: E = @enumFromInt(242892);
    const r: P = @bitCast(q);
    _ = r;
}

const E = enum(u32) {
    _,
};

const P = packed struct(u32) {
    a: u16,
    b: u16,
};

❯ zig test test.zig 
test.zig:23:27: error: cannot @bitCast from 'test.E'
    const r: P = @bitCast(q);
                          ^

Expected Behavior

success

[nektro]

errata: the other direction doesn't work either but its far easier to workaround with @bitCast(@intFromEnum(e)) since the intFromEnum call doesn't need a result type

edit: I mention the result type because the workaround for this issue also requires going through an int temporary

[Vexu]

I would expect this to be an intentional extension of #3647

[nektro]

does that mean @enumFromInt should/does accept packed structs directly? I'll have to try that

: ( alas no, I get error: expected integer type, found 'P'

[Vexu]

I don't think so, packed structs are not ints despite being implemented as such.

[nektro]

I think if #18882 (comment) is implemented then this starts to make a lot of sense