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/*
* 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_base_visitor : public ir_hierarchical_visitor {
public:
ir_visitor_status rvalue_visit(ir_assignment *);
ir_visitor_status rvalue_visit(ir_call *);
ir_visitor_status rvalue_visit(ir_dereference_array *);
ir_visitor_status rvalue_visit(ir_dereference_record *);
ir_visitor_status rvalue_visit(ir_expression *);
ir_visitor_status rvalue_visit(ir_if *);
ir_visitor_status rvalue_visit(ir_return *);
ir_visitor_status rvalue_visit(ir_swizzle *);
ir_visitor_status rvalue_visit(ir_texture *);
virtual void handle_rvalue(ir_rvalue **rvalue) = 0;
};
class ir_rvalue_visitor : public ir_rvalue_base_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 *);
};
class ir_rvalue_enter_visitor : public ir_rvalue_base_visitor {
public:
virtual ir_visitor_status visit_enter(ir_assignment *);
virtual ir_visitor_status visit_enter(ir_call *);
virtual ir_visitor_status visit_enter(ir_dereference_array *);
virtual ir_visitor_status visit_enter(ir_dereference_record *);
virtual ir_visitor_status visit_enter(ir_expression *);
virtual ir_visitor_status visit_enter(ir_if *);
virtual ir_visitor_status visit_enter(ir_return *);
virtual ir_visitor_status visit_enter(ir_swizzle *);
virtual ir_visitor_status visit_enter(ir_texture *);
};
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