1/*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24/**
25 * \file ir_rvalue_visitor.h
26 *
27 * Generic class to implement the common pattern we have of wanting to
28 * visit each ir_rvalue * and possibly change that node to a different
29 * class.  Just implement handle_rvalue() and you will be called with
30 * a pointer to each rvalue in the tree.
31 */
32
33class ir_rvalue_visitor : public ir_hierarchical_visitor {
34public:
35
36   virtual ir_visitor_status visit_leave(ir_assignment *);
37   virtual ir_visitor_status visit_leave(ir_call *);
38   virtual ir_visitor_status visit_leave(ir_dereference_array *);
39   virtual ir_visitor_status visit_leave(ir_dereference_record *);
40   virtual ir_visitor_status visit_leave(ir_expression *);
41   virtual ir_visitor_status visit_leave(ir_if *);
42   virtual ir_visitor_status visit_leave(ir_return *);
43   virtual ir_visitor_status visit_leave(ir_swizzle *);
44   virtual ir_visitor_status visit_leave(ir_texture *);
45
46   virtual void handle_rvalue(ir_rvalue **rvalue) = 0;
47};
48