initialHEADmain

1 files changed, 49 insertions, 0 deletions

diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..65e7aff
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,49 @@
+//! Definition of an iris [error][Error].
+
+use std::fmt;
+use std::io;
+
+macro_rules! error {
+    ($($arg:tt)*) => {
+        $crate::error::Error::new(format!($($arg)*))
+    };
+}
+
+pub(crate) use error;
+
+/// Errors that can occur in iris
+#[derive(thiserror::Error, Debug)]
+pub enum Error {
+	/// Occurs when a file could not be read, or could not be written to.
+	#[error(transparent)]
+	Io(#[from] io::Error),
+	/// Occurs when an error was raised from the local git repository
+	#[error(transparent)]
+	Git(#[from] git2::Error),
+	/// Occurs when iris failed to convert its internal structures into the
+	/// config string representation.
+	#[error(transparent)]
+	De(#[from] crate::parse::de::Error),
+	/// Occurs when a provided string representation of an iris structure is
+	/// invalid and could not be converted/parsed.
+	#[error(transparent)]
+	Ser(#[from] crate::parse::ser::Error),
+	/// Generic error message, occurs anywhere
+	#[error("{0}")]
+	Custom(String),
+}
+
+impl Error {
+	pub fn new(fmt: impl fmt::Display) -> Self {
+		Self::Custom(fmt.to_string())
+	}
+}
+
+impl From<&str> for Error {
+	fn from(msg: &str) -> Self {
+		Self::new(msg)
+	}
+}
+
+/// iris result type
+pub type Result<T> = std::result::Result<T, Error>;