1 files changed, 7 insertions, 31 deletions
diff --git a/src/render.rs b/src/render.rs
index af5d2b2..484fd83 100644
--- a/src/render.rs
+++ b/src/render.rs
@@ -8,42 +8,18 @@ use imageproc::{drawing, rect::Rect};
 use num_traits::{Num, NumCast};
 use rusttype::{Font, Scale};
 use serde::{Deserialize, Serialize};
-use std::{error::Error, fmt};
+use thiserror::Error;
 
-#[derive(Debug)]
+#[derive(Error, Debug)]
 pub enum RenderError {
-    ApiError(ApiError),
-    ImageError(image::ImageError),
+    #[error("Error accessing the API")]
+    ApiError(#[from] ApiError),
+    #[error("Image processing error")]
+    ImageError(#[from] image::ImageError),
+    #[error("The build template contains nothing worth rendering")]
     EmptyBuild,
 }
 
-error_froms! { RenderError,
-    err: ApiError => RenderError::ApiError(err),
-    err: image::ImageError => RenderError::ImageError(err),
-}
-
-impl fmt::Display for RenderError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            RenderError::ApiError(_) => write!(f, "error accessing the API"),
-            RenderError::ImageError(_) => write!(f, "image processing error"),
-            RenderError::EmptyBuild => {
-                write!(f, "the build template contains nothing worth rendering")
-            }
-        }
-    }
-}
-
-impl Error for RenderError {
-    fn source(&self) -> Option<&(dyn Error + 'static)> {
-        match *self {
-            RenderError::ApiError(ref err) => Some(err),
-            RenderError::ImageError(ref err) => Some(err),
-            _ => None,
-        }
-    }
-}
-
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub enum Alignment {
     Left,