1/*
2 * Copyright (C) 2019 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "WHLSLHighZombieFinder.h"
28
29#if ENABLE(WEBGPU)
30
31#include "WHLSLVisitor.h"
32
33namespace WebCore {
34
35namespace WHLSL {
36
37#if !ASSERT_DISABLED
38// If a high-level construct somehow manages to live on when we're lowered, it's a high zombie.
39class HighZombieFinder : public Visitor {
40private:
41 void visit(AST::DotExpression&) override
42 {
43 ASSERT_NOT_REACHED();
44 }
45
46 void visit(AST::IndexExpression&) override
47 {
48 ASSERT_NOT_REACHED();
49 }
50
51 void visit(AST::ReadModifyWriteExpression&) override
52 {
53 ASSERT_NOT_REACHED();
54 }
55};
56#endif
57
58void findHighZombies(Program& program)
59{
60#if ASSERT_DISABLED
61 UNUSED_PARAM(program);
62#else
63 HighZombieFinder().Visitor::visit(program);
64#endif
65}
66
67}
68
69}
70
71#endif
72