class Rouge::Lexers::Rust

def self.builtins
  @builtins ||= Set.new %w(
    Add BitAnd BitOr BitXor bool c_char c_double c_float char
    c_int clock_t c_long c_longlong Cons Const Copy c_schar c_short
    c_uchar c_uint c_ulong c_ulonglong c_ushort c_void dev_t DIR
    dirent Div Either Eq Err f32 f64 Failure FILE float fpos_t
    i16 i32 i64 i8 Index ino_t int intptr_t Left mode_t Modulo Mul
    Neg Nil None Num off_t Ok Option Ord Owned pid_t Ptr ptrdiff_t
    Right Send Shl Shr size_t Some ssize_t str Sub Success time_t
    u16 u32 u64 u8 uint uintptr_t
    Box Vec String Gc Rc Arc
  )
end