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 isize 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 usize uint uintptr_t
    Box Vec String Gc Rc Arc
  )
end

def self.detect?(text)
  return true if text.shebang? 'rustc'
end

def self.keywords
  @keywords ||= %w(
    as assert break const copy do drop else enum extern fail false
    fn for if impl let log loop match mod move mut priv pub pure
    ref return self static struct true trait type unsafe use where
    while box
  )
end

def macro_closed?
  @macro_delims.values.all?(&:zero?)
end