evaluator

var (
	NULL  = &object.Null{}
	TRUE  = object.NewBoolean(true)
	FALSE = object.NewBoolean(false)
)

var BytesBuiltin = &object.Builtin{
	Fn: bytesConstructorFn,
	HelpText: `bytes(source="", encoding="utf-8") - Construct a Bytes value

Returns an immutable Bytes object holding the given binary data. Bytes is the
canonical binary type in Scriptling and is produced by hashlib.digest(),
hmac.digest(), base64.b64decode(), and msgpack.packb().

Parameters:
  source:  A string (encoded as UTF-8), a list/tuple of ints (0-255),
           an existing Bytes value, or nothing (empty bytes).
  encoding (str, optional): Encoding to use when source is a string.
           Only "utf-8" is supported. Default: "utf-8".

Returns:
  bytes: a Bytes object.

Example:
  b = bytes("hi")          # b'hi'
  b = bytes([104, 105])    # b'hi'
  b = bytes()              # b''
  s = b.decode()           # "hi"
  b = bytes.fromhex("6869") # b'hi'`,
	Attributes: map[string]object.Object{
		"fromhex": &object.Builtin{
			Fn: func(ctx context.Context, kwargs object.Kwargs, args ...object.Object) object.Object {
				if err := errors.ExactArgs(args, 1); err != nil {
					return err
				}
				s, err := args[0].AsString()
				if err != nil {
					return err
				}
				decoded, decodeErr := hex.DecodeString(s)
				if decodeErr != nil {
					return errors.NewError("bytes.fromhex: %s", decodeErr.Error())
				}
				return object.NewBytes(decoded)
			},
			HelpText: `bytes.fromhex(hex_string) - Build Bytes from a hex string

Returns a Bytes value whose contents are the decoded hex.

Example:
  b = bytes.fromhex("6869")   # b'hi'`,
		},
		"frombase64": &object.Builtin{
			Fn: func(ctx context.Context, kwargs object.Kwargs, args ...object.Object) object.Object {
				if err := errors.ExactArgs(args, 1); err != nil {
					return err
				}
				s, err := args[0].AsString()
				if err != nil {
					return err
				}
				decoded, decodeErr := base64.StdEncoding.DecodeString(s)
				if decodeErr != nil {
					return errors.NewError("bytes.frombase64: %s", decodeErr.Error())
				}
				return object.NewBytes(decoded)
			},
			HelpText: `bytes.frombase64(b64_string) - Build Bytes from a Base64 string

Returns a Bytes value whose contents are the decoded Base64 input.

Example:
  b = bytes.frombase64("aGk=")   # b'hi'`,
		},
	},
}