1 files changed, 42 insertions, 0 deletions

diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..ff25db7
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,42 @@
+use crate::lisp::error::LispError;
+
+use std::{error, fmt, io};
+
+use sdl2::ttf;
+
+#[derive(Debug)]
+pub enum AppError {
+    Lisp(LispError),
+    File(io::Error),
+    Sdl(String),
+    SdlTTF(SdlTTFError),
+}
+
+impl fmt::Display for AppError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Lisp(e) => write!(f, "lisp error: {}", e),
+            Self::File(e) => write!(f, "file error: {}", e),
+            Self::Sdl(e) => write!(f, "sdl2 error: {}", e),
+            Self::SdlTTF(e) => write!(f, "ttf error: {}", e),
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum SdlTTFError {
+    Font(ttf::FontError),
+    Init(ttf::InitError),
+}
+
+impl fmt::Display for SdlTTFError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Font(e) => write!(f, "font error: {}", e),
+            Self::Init(e) => write!(f, "init error: {}", e),
+        }
+    }
+}
+
+impl error::Error for AppError {}
+impl error::Error for SdlTTFError {}