upgrade error-chain and make backtrace a feature

request: #8

Author: JeffBelgum

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ntp"
-version = "0.2.0"
+version = "0.3.0"
 authors = ["Jeff Belgum <[email protected]>"]
 license = "MIT/Apache-2.0"
 description = "Library for parsing and communicating over Network Time Protocol."
@@ -11,10 +11,18 @@ readme = "README.md"
 keywords = ["protocol", "network", "time", "parser", "binary"]
 categories = ["date-and-time", "network-programming", "parser-implementations", "encoding"]
 
+
+[features]
+backtrace = ["error-chain/backtrace"]
+
+
 [dependencies]
 byteorder = "0.5.3"
 conv = "0.3.2"
 custom_derive = "0.1.5"
-error-chain = "0.5.0"
 log = "0.3.6"
 time = "0.1.35"
+
+[dependencies.error-chain]
+version = "0.10.0"
+default-features = false

README.md

@@ -11,7 +11,7 @@ Add this to your `Cargo.toml`:
 
 ```ini
 [dependencies]
-ntp = "0.2.0"
+ntp = "0.3.0"
 ```
 
 and this to your crate root:
@@ -40,4 +40,4 @@ License
 
 `ntplib` is distributed under the terms of both the MIT license and the Apache License (Version 2.0).
 
-See LICENSE-APACHE, and LICENSE-MIT for details.
+See LICENSE-APACHE and LICENSE-MIT for details.

src/errors.rs

@@ -1,12 +1,10 @@
 use std::io;
 use conv::Unrepresentable;
 
-// TODO use newer syntax for foreign_links section
-// generate error types for this crate using https://github.com/brson/error-chain
 error_chain! { 
     foreign_links {
-        io::Error, IOError;
-        Unrepresentable<u8>, UnrepresentableU8;
-        Unrepresentable<u32>, UnrepresentableU32;
+        IOError(io::Error);
+        UnrepresentableU8(Unrepresentable<u8>);
+        UnrepresentableU32(Unrepresentable<u32>);
     }
 }