Decoding simple files with functions and assignments is now possible

ASTNode.cpp

@@ -2,6 +2,31 @@
 
 PycRef<ASTNode> Node_NULL = (ASTNode*)0;
 
+/* ASTNodeList */
+void ASTNodeList::removeLast()
+{
+    list_t::iterator it = m_nodes.end();
+    --it;
+    m_nodes.erase(it);
+}
+
+void ASTNodeList::removeFirst()
+{
+    list_t::iterator it = m_nodes.begin();
+    m_nodes.erase(it);
+}
+
+
+/* ASTBinary */
+const char* ASTBinary::op_str() const
+{
+    static const char* s_op_strings[] = {
+        "**", "*", "/", "%", "+", "-", "<<", ">>", "&", "^", "|"
+    };
+    return s_op_strings[op()];
+}
+
+
 /* ASTCompare */
 const char* ASTCompare::op_str() const
 {
@@ -9,5 +34,5 @@ const char* ASTCompare::op_str() const
         "<", "<=", "==", "!=", ">", ">=", "in", "not in", "is", "is not",
         "<EXCEPTION MATCH>", "<BAD>"
     };
-    return s_cmp_strings[m_op];
+    return s_cmp_strings[op()];
 }