thiserror: replace usage of failure

`thiserror` is much lighter and doesn't export a dependency on `failure`
to consumers of the crate.

3 files changed, 10 insertions, 9 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 8f341bf..1f22f6b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ keywords = ["vobject", "icalendar", "calendar", "contacts"]
 
 [dependencies]
 chrono      = { version = "0.4", optional = true }
-failure = "0.1"
+thiserror = "1.0"
 
 [features]
 default         = []
diff --git a/src/error.rs b/src/error.rs
index 28f39e0..d98e716 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,16 +1,18 @@
-#[derive(Debug, Clone, Eq, PartialEq, Fail)]
+use thiserror::Error;
+
+#[derive(Debug, Clone, Error)]
 pub enum VObjectErrorKind {
-    #[fail(display = "Parser error: {}", _0)]
+    #[error("Parser error: {}", _0)]
     ParserError(String),
 
-    #[fail(display = "Not a Vcard")]
+    #[error("Not a Vcard")]
     NotAVCard,
 
-    #[fail(display = "Not a Icalendar: {}", _0)]
+    #[error("Not a Icalendar: {}", _0)]
     NotAnICalendar(String),
 
     #[cfg(feature = "timeconversions")]
-    #[fail(display = "{}", _0)]
+    #[error("{}", _0)]
     ChronoError(::chrono::format::ParseError),
 }
 
diff --git a/src/lib.rs b/src/lib.rs
index 1aadb8e..4bd1193 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,9 +1,8 @@
-#[macro_use]
-extern crate failure;
-
 #[cfg(feature = "timeconversions")]
 extern crate chrono;
 
+extern crate thiserror;
+
 #[macro_use] pub mod param;
 #[macro_use] mod util;