pub used InvalidEncoding in serde+rustc_serialize so it shows in `cargo doc` (#82)

* Removed unused import warning

* pub use InvalidEncoding in serde+rustc_serialize

* Made both fields of InvalidEncoding public so it can be used without Display or Debug traits (e.g. pattern matching)
* Export of InvalidEncoding in rustc_serialize/serde make them visible in `cargo doc`

src/rustc_serialize/mod.rs

@@ -7,7 +7,7 @@ use std::io::{Write, Read};
 use ::SizeLimit;
 
 pub use self::writer::{SizeChecker, EncoderWriter, EncodingResult, EncodingError};
-pub use self::reader::{DecoderReader, DecodingResult, DecodingError};
+pub use self::reader::{DecoderReader, DecodingResult, DecodingError, InvalidEncoding};
 
 mod reader;
 mod writer;

src/rustc_serialize/reader.rs

@@ -11,8 +11,8 @@ use ::SizeLimit;
 
 #[derive(Eq, PartialEq, Clone, Debug)]
 pub struct InvalidEncoding {
-    desc: &'static str,
-    detail: Option<String>,
+    pub desc: &'static str,
+    pub detail: Option<String>,
 }
 
 impl fmt::Display for InvalidEncoding {

src/serde/mod.rs

@@ -9,6 +9,7 @@ pub use self::reader::{
     Deserializer,
     DeserializeResult,
     DeserializeError,
+    InvalidEncoding
 };
 
 pub use self::writer::{
@@ -120,4 +121,3 @@ pub fn deserialize<T>(bytes: &[u8]) -> DeserializeResult<T>
     let mut reader = bytes;
     deserialize_from(&mut reader, SizeLimit::Infinite)
 }
-

src/serde/reader.rs

@@ -8,14 +8,13 @@ use byteorder::{BigEndian, ReadBytesExt};
 use num_traits;
 use serde_crate as serde;
 use serde_crate::de::value::ValueDeserializer;
-use serde_crate::de::Deserializer as SerdeDeserializer;
 
 use ::SizeLimit;
 
 #[derive(Eq, PartialEq, Clone, Debug)]
 pub struct InvalidEncoding {
-    desc: &'static str,
-    detail: Option<String>,
+    pub desc: &'static str,
+    pub detail: Option<String>,
 }
 
 impl fmt::Display for InvalidEncoding {

tests/test.rs

@@ -9,7 +9,7 @@ use std::fmt::Debug;
 use std::collections::HashMap;
 use std::ops::Deref;
 
-use rustc_serialize::{Encoder, Decoder, Encodable, Decodable};
+use rustc_serialize::{Encodable, Decodable};
 
 use bincode::{RefBox, StrBox, SliceBox};