changed config to toml, autocreate config;

better error handling

1 files changed, 29 insertions, 4 deletions

diff --git a/src/error.rs b/src/error.rs
index c82688c..1ac2a48 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,16 +1,20 @@
 use core::fmt;
+use serde::Deserialize;
 
 pub type MLE<T> = Result<T, MLError>;
 
-#[derive(Debug)]
+#[derive(Debug, Deserialize)]
 pub struct MLError {
     etype: ErrorType,
     message: String,
 }
 
-#[derive(Debug)]
+#[derive(Debug, Deserialize)]
 pub enum ErrorType {
-    ArgumentError
+    ArgumentError,
+    ConfigError,
+    LibToml,
+    IoError,
 }
 
 impl std::error::Error for MLError {
@@ -22,11 +26,32 @@ impl std::error::Error for MLError {
 impl fmt::Display for MLError {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self.etype {
-            ErrorType::ArgumentError => write!(f, "ARGS")
+            ErrorType::ArgumentError => write!(f, "ARGS"),
+            ErrorType::ConfigError => write!(f, "CONFIG"),
+            ErrorType::LibToml => write!(f, "TOML"),
+            ErrorType::IoError => write!(f, "IO")
         }
     }
 }
 
+impl From<toml::de::Error> for MLError {
+    fn from(error: toml::de::Error) -> Self {
+        Self { etype: ErrorType::LibToml, message: error.to_string() }
+    }
+}
+
+impl From<toml::ser::Error> for MLError {
+    fn from(error: toml::ser::Error) -> Self {
+        Self { etype: ErrorType::LibToml, message: error.to_string() }
+    }
+}
+
+impl From<std::io::Error> for MLError {
+    fn from(error: std::io::Error) -> Self {
+        Self { etype: ErrorType::IoError, message: error.to_string() }
+    }
+}
+
 impl MLError {
     pub fn new(etype: ErrorType, message: &str) -> Self {
         Self { etype, message: String::from(message) }