tutorials/Coding-Style.md

-# Blocks with 1 statement
+#  Blocks with 1 statement
+
 - The body of an if condition should at preferably have brackets. If the body has just one statement you may leave out the `{}` but in that case put the statement indented on another line. Also only do this if you think it unlikely that you will add more statements to the body later.
 
 **OK:**
@@ -15,4 +16,41 @@ if ((flags & STMT_BLOCK_RETURN_F) && !parse_error) {
 
 ```c
 if (flags & STMT_BLOCK_RETURN_F) ret = TCappendAssign (ret, ret_stmt);  
-```
\ No newline at end of file
+```
+
+# Info struct accessor macros
+
+You should not access the fields on the info struct in traversals directly but access it with a macro. 
+This allows you to potentially change the place your attribute is stored on the original info struct.
+
+The macros should follow the format `INFO_<FIELD_NAME>()`
+
+# Function definitions
+
+Write a function definition like this:
+
+```c
+keywords type
+name() 
+{
+    ...
+}
+```
+
+The keywords and return type first and then on another line the name and arguments.
+The `{` goes below the function name.
+
+
+## Example:
+
+```c
+static inline void
+destroy_mutex_barrier (void)
+{
+    
+}
+
+```
+
+Also do not forget to make a doc string with a `@brief` and a description of what the functnion does 
+and preferably some examples if.