Macro obfstr::obfwide

macro_rules! obfwide {
    ($(let $name:ident = $s:expr;)*) => { ... };
    ($name:ident = $s:expr) => { ... };
    ($buf:ident <- $s:expr) => { ... };
    ($s:expr) => { ... };
}

Compiletime wide string constant obfuscation.