From 9f5dd9dad6b13476bab2c6eb3c6528f8ad49311a Mon Sep 17 00:00:00 2001
From: Till Höppner
Date: Thu, 25 Feb 2016 06:48:03 +0100
Subject: Refactor... everything.

---
 base/src/error.rs | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 base/src/error.rs

(limited to 'base/src/error.rs')

diff --git a/base/src/error.rs b/base/src/error.rs
new file mode 100644
index 0000000..2806c78
--- /dev/null
+++ b/base/src/error.rs
@@ -0,0 +1,54 @@
+use std::{error, fmt, io, result};
+use std::error::Error as E;
+
+use chrono::format::ParseError;
+
+pub type Result<T> = result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    Parse(String),
+    Chrono(ParseError),
+    Io(io::Error),
+    Custom(Box<error::Error>),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        fmt.write_str(self.description())
+    }
+}
+
+impl error::Error for Error {
+    fn description(&self) -> &str {
+        use self::Error::*;
+        match self {
+            &Parse(_) => "error while parsing",
+            &Chrono(_) => "error while parsing time strings",
+            &Io(_) => "error during input/output",
+            &Custom(ref e) => e.description(),
+        }
+    }
+
+    fn cause(&self) -> Option<&error::Error> {
+        use self::Error::*;
+        match self {
+            &Parse(ref _e) => None,
+            &Chrono(ref e) => Some(e),
+            &Io(ref e) => Some(e),
+            &Custom(ref e) => e.cause(),
+        }
+    }
+}
+
+impl From<ParseError> for Error {
+    fn from(err: ParseError) -> Error {
+        Error::Chrono(err)
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(err: io::Error) -> Error {
+        Error::Io(err)
+    }
+}
-- 
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