start to convert ad-hoc errors to explicit types

src/core/error.rs

@@ -0,0 +1,75 @@
+use std::any::TypeId;
+
+use color_eyre::eyre::Report;
+use stardust_xr::{
+	messenger::MessengerError,
+	schemas::flex::{
+		flexbuffers::{DeserializationError, ReaderError},
+		FlexSerializeError,
+	},
+};
+use stereokit_rust::StereoKitError;
+use thiserror::Error;
+
+pub type Result<T, E = ServerError> = std::result::Result<T, E>;
+
+#[derive(Error, Debug)]
+pub enum ServerError {
+	#[error("Internal: Unable to get client")]
+	NoClient,
+	#[error("Messenger does not exist for this node")]
+	NoMessenger,
+	#[error("Messenger error: {0}")]
+	MessengerError(#[from] MessengerError),
+	#[error("Remote method error: {0}")]
+	RemoteMethodError(String),
+	#[error("Serialization error: {0}")]
+	SerializationError(#[from] FlexSerializeError),
+	#[error("Deserialization error: {0}")]
+	DeserializationError(#[from] DeserializationError),
+	#[error("Reader error: {0}")]
+	ReaderError(#[from] ReaderError),
+	#[error("StereoKit error: {0}")]
+	StereoKitError(#[from] StereoKitError),
+	#[error("Aspect {} does not exist for node", 0.to_string())]
+	NoAspect(TypeId),
+	#[error("{0}")]
+	Report(#[from] Report),
+}
+
+#[macro_export]
+macro_rules! bail {
+    ($msg:literal $(,)?) => {
+        return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($msg)));
+    };
+    ($err:expr $(,)?) => {
+        return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($err)));
+    };
+    ($fmt:expr, $($arg:tt)*) => {
+        return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($fmt, $($arg)*)));
+    };
+}
+
+#[macro_export]
+macro_rules! ensure {
+    ($cond:expr $(,)?) => {
+        if !$cond {
+            $crate::ensure!($cond, concat!("Condition failed: `", stringify!($cond), "`"))
+        }
+    };
+    ($cond:expr, $msg:literal $(,)?) => {
+        if !$cond {
+            return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($msg)));
+        }
+    };
+    ($cond:expr, $err:expr $(,)?) => {
+        if !$cond {
+            return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($err)));
+        }
+    };
+    ($cond:expr, $fmt:expr, $($arg:tt)*) => {
+        if !$cond {
+            return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($fmt, $($arg)*)));
+        }
+    };
+}