Add hint parsing on constant buffers. Not yet used in output.

Parsing.jai

@@ -771,7 +771,6 @@ field_declaration :: (parse_state : *Parse_State, identifier_token : *Token) ->
 				advance(parse_state);
 			}
 		}
-		
 	} else if match(parse_state, .TOKEN_ASSIGN) {
 		add_child(node, expression(parse_state));
 	}
@@ -1108,6 +1107,18 @@ constant_buffer :: (parse_state : *Parse_State, identifier_token : *Token = null
 	node : *AST_Node;
 	source_location : Source_Range;
 	source_location.begin = parse_state.current;
+
+	if check(parse_state, .TOKEN_AT) {
+		while check(parse_state, .TOKEN_AT) {
+			advance(parse_state);
+			// @Incomplete(niels): this is a mapping
+			if check(parse_state, .TOKEN_IDENTIFIER) {
+				array_add(*node.hint_tokens, parse_state.current);
+				advance(parse_state);
+			}
+		}
+	}
+	
 	consume(parse_state, .TOKEN_LEFTBRACE, "Expect '{' after 'constant_buffer' keyword");
 	buffer := field_list(parse_state, .Semicolon);
 

module.jai

@@ -119,6 +119,8 @@ Constant_Buffer :: struct {
 
 	fields : Static_Array(Property_Field, 16);
 
+	hint : Field_Hint; // optional hint...
+
 	buffer_index : u32;
 }