Better error management, Utf8Paths & other stuff.

cas-core/src/lib.rs

@@ -18,11 +18,10 @@
 //! `cas-core` provides traits and types to interface with content-addressable
 //! storage.
 
-#![feature(inherent_ascii_escape)]
-
 
 extern crate thiserror;
 extern crate digest;
+extern crate camino;
 
 
 mod error;
@@ -42,3 +41,11 @@ pub use crate::{
     cas::{Cas, RefStore},
 };
 
+
+#[macro_export]
+macro_rules! err {
+    ($($arg:tt)*) => {{
+        let res = std::fmt::format(format_args!($($arg)*));
+        Error::err(res)
+    }}
+}