Adds assert_error macro

lighthouse/main.rs

@@ -6,11 +6,12 @@ extern crate clap;
 extern crate network_libp2p;
 extern crate futures;
 
+#[macro_use]
+pub mod utils;
 pub mod db;
 pub mod client;
 pub mod state;
 pub mod sync;
-pub mod utils;
 pub mod config;
 
 use std::path::PathBuf;

lighthouse/utils/macros.rs

@@ -0,0 +1,10 @@
+#[macro_export]
+macro_rules! assert_error {
+    ($exp: expr, $err: expr) => {
+        if ( !$exp ) {
+            return Err($err);
+        }
+    }
+}
+
+

lighthouse/utils/mod.rs

@@ -3,8 +3,12 @@ extern crate blake2;
 extern crate crypto_mac;
 extern crate boolean_bitfield;
 
+#[macro_use]
+pub mod macros;
 pub mod types;
 pub mod bls;
 pub mod test_helpers;
 pub mod logging;
 pub mod errors;
+
+