From b3b0cf6a4c6b23e0ebe7e5f5ab1b7cacf27268b1 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 13 Aug 2010 20:39:24 -0700 Subject: glsl2: Add a generic visitor class to call back with pointers to each rvalue. I keep copy and pasting this code all over, so consolidate it in one place. --- src/glsl/ir_rvalue_visitor.h | 47 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/glsl/ir_rvalue_visitor.h (limited to 'src/glsl/ir_rvalue_visitor.h') diff --git a/src/glsl/ir_rvalue_visitor.h b/src/glsl/ir_rvalue_visitor.h new file mode 100644 index 0000000000..31a56beb9b --- /dev/null +++ b/src/glsl/ir_rvalue_visitor.h @@ -0,0 +1,47 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/** + * \file ir_rvalue_visitor.h + * + * Generic class to implement the common pattern we have of wanting to + * visit each ir_rvalue * and possibly change that node to a different + * class. Just implement handle_rvalue() and you will be called with + * a pointer to each rvalue in the tree. + */ + +class ir_rvalue_visitor : public ir_hierarchical_visitor { +public: + + virtual ir_visitor_status visit_leave(ir_assignment *); + virtual ir_visitor_status visit_leave(ir_call *); + virtual ir_visitor_status visit_leave(ir_dereference_array *); + virtual ir_visitor_status visit_leave(ir_dereference_record *); + virtual ir_visitor_status visit_leave(ir_expression *); + virtual ir_visitor_status visit_leave(ir_if *); + virtual ir_visitor_status visit_leave(ir_return *); + virtual ir_visitor_status visit_leave(ir_swizzle *); + virtual ir_visitor_status visit_leave(ir_texture *); + + virtual void handle_rvalue(ir_rvalue **rvalue) = 0; +}; -- cgit v1.2.3