Improved Error Handling

Added error types that will be matchable in many situations, allowing
for better error handling.

Cargo.toml

@@ -16,4 +16,5 @@ package.version = "0.0.0"
 anyhow = "1.0.75"
 crossterm = "0.27.0"
 ratatui = "0.26.2"
+thiserror = "1.0.61"
 tui-helper-proc-macro = { path = "tui-helper-proc-macro", version = "0.0.0" }

src/chunks.rs

@@ -9,6 +9,8 @@ use ratatui::prelude::Rect;
 
 use crate::*;
 
+use self::widget::WidgetError;
+
 /// The default system of storage for the system.
 #[derive(Default, State)]
 pub struct Chunks {
@@ -28,10 +30,10 @@ impl Chunks {
 
     /// Returns a rect if the type id is within the chunk,
     /// an error is thrown if it isn't registered.
-    pub fn get_chunk<T: Any>(&self) -> Result<Rect, Box<dyn Error>> {
+    pub fn get_chunk<T: Any>(&self) -> Result<Rect, WidgetError> {
         match self.chunks.get(&TypeId::of::<T>()).cloned() {
             Some(chunk) => Ok(chunk),
-            None => Err(anyhow!("Chunk doesn't exist").into()),
+            None => Err(WidgetError::ChunkError),
         }
     }
 }

src/widget/mod.rs

@@ -8,11 +8,21 @@ use crate::{states::States, WidgetFrame};
 use std::{
     any::{Any, TypeId},
     collections::HashMap,
-    error::Error,
 };
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum WidgetError {
+    #[error(transparent)]
+    Io(#[from] std::io::Error),
+    #[error("Chunk doesn't exist")]
+    ChunkError,
+    #[error(transparent)]
+    Misc(#[from] anyhow::Error),
+}
 
 /// The main result that a widget will always return.
-pub type WidgetResult = Result<(), Box<dyn Error>>;
+pub type WidgetResult = Result<(), WidgetError>;
 
 /// A widget that can be called.
 pub trait Widget {