der: support for the REAL type

der/src/asn1.rs

@@ -15,6 +15,7 @@ mod octet_string;
 mod oid;
 mod optional;
 mod printable_string;
+mod real;
 mod sequence;
 mod sequence_of;
 mod set_of;

der/src/asn1/integer.rs

@@ -1,8 +1,8 @@
 //! ASN.1 `INTEGER` support.
 
 pub(super) mod bigint;
-mod int;
-mod uint;
+pub(super) mod int;
+pub(super) mod uint;
 
 use crate::{
     asn1::Any, ByteSlice, DecodeValue, Decoder, EncodeValue, Encoder, Error, FixedTag, Header,

der/src/asn1/integer/uint.rs

@@ -6,7 +6,7 @@ use crate::{Encoder, Length, Result, Tag};
 /// zeroes removed.
 ///
 /// Returns a byte array of the requested size containing a big endian integer.
-pub(super) fn decode_to_slice(bytes: &[u8]) -> Result<&[u8]> {
+pub(crate) fn decode_to_slice(bytes: &[u8]) -> Result<&[u8]> {
     // The `INTEGER` type always encodes a signed value, so for unsigned
     // values the leading `0x00` byte may need to be removed.
     //
@@ -40,7 +40,7 @@ pub(super) fn decode_to_array<const N: usize>(bytes: &[u8]) -> Result<[u8; N]> {
 }
 
 /// Encode the given big endian bytes representing an integer as ASN.1 DER.
-pub(super) fn encode_bytes(encoder: &mut Encoder<'_>, bytes: &[u8]) -> Result<()> {
+pub(crate) fn encode_bytes(encoder: &mut Encoder<'_>, bytes: &[u8]) -> Result<()> {
     let bytes = strip_leading_zeroes(bytes);
 
     if needs_leading_zero(bytes) {
@@ -52,13 +52,13 @@ pub(super) fn encode_bytes(encoder: &mut Encoder<'_>, bytes: &[u8]) -> Result<()
 
 /// Get the encoded length for the given unsigned integer serialized as bytes.
 #[inline]
-pub(super) fn encoded_len(bytes: &[u8]) -> Result<Length> {
+pub(crate) fn encoded_len(bytes: &[u8]) -> Result<Length> {
     let bytes = strip_leading_zeroes(bytes);
     Length::try_from(bytes.len())? + needs_leading_zero(bytes) as u8
 }
 
 /// Strip the leading zeroes from the given byte slice
-pub(super) fn strip_leading_zeroes(mut bytes: &[u8]) -> &[u8] {
+pub(crate) fn strip_leading_zeroes(mut bytes: &[u8]) -> &[u8] {
     while let Some((byte, rest)) = bytes.split_first() {
         if *byte == 0 && !rest.is_empty() {
             bytes = rest;