I accidently write a peice of bad code, but it compiles. I'm comfused on the semantics

[zigo]

@zigo

pub fn bar() bool {
    !return true; // okay
    &return true; // okay
    ~return true; // okay
    -return true; // okay
    +return true; // error
}

Okay, + is not a unary operation in zig.

[zigo]

This also compiles:

pub fn bar() bool {
    &&---!-~return true; // okay
}

I know why Zig don’t use && as boolean and now.