minor tweaks.

diff --git a/src/prolog/codegen.rs b/src/prolog/codegen.rs
index 30b5dcc2eec4830ca5f7e700f2914f6f821cdc1b..b4ded35c52c25024d532950ebcb424cf221aaaa0 100644 (file)
--- a/src/prolog/codegen.rs
+++ b/src/prolog/codegen.rs
@@ -1119,11 +1119,11 @@ impl<'a> CodeGenerator<'a> {
 
     pub fn compile_predicate(&mut self, clauses: &'a Vec<PredicateClause>) -> Code
     {
-        let mut code = Vec::new();
+        let mut code   = Vec::new();
         let split_pred = Self::split_predicate(clauses);
         let multi_seq  = split_pred.len() > 1;
 
-        for &(l, r) in split_pred.iter() {
+        for (l, r) in split_pred {
             let mut code_segment = self.compile_pred_subseq(&clauses[l .. r]);
 
             if multi_seq {