1/*
2 * Copyright (C) 2016-2019 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(WEBASSEMBLY)
29
30#include "JSDestructibleObject.h"
31#include "JSObject.h"
32#include "WasmLimits.h"
33#include "WasmTable.h"
34#include "WebAssemblyWrapperFunction.h"
35#include "WebAssemblyFunction.h"
36#include <wtf/MallocPtr.h>
37#include <wtf/Ref.h>
38
39namespace JSC {
40
41class JSWebAssemblyTable final : public JSDestructibleObject {
42public:
43 typedef JSDestructibleObject Base;
44
45 static JSWebAssemblyTable* create(JSGlobalObject*, VM&, Structure*, Ref<Wasm::Table>&&);
46 static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
47
48 DECLARE_INFO;
49
50 static bool isValidLength(uint32_t length) { return Wasm::Table::isValidLength(length); }
51 Optional<uint32_t> maximum() const { return m_table->maximum(); }
52 uint32_t length() const { return m_table->length(); }
53 uint32_t allocatedLength() const { return m_table->allocatedLength(length()); }
54 bool grow(uint32_t delta) WARN_UNUSED_RETURN;
55 JSValue get(uint32_t);
56 void set(uint32_t, WebAssemblyFunction*);
57 void set(uint32_t, WebAssemblyWrapperFunction*);
58 void set(uint32_t, JSValue);
59 void clear(uint32_t);
60
61 Wasm::Table* table() { return m_table.ptr(); }
62
63private:
64 JSWebAssemblyTable(VM&, Structure*, Ref<Wasm::Table>&&);
65 void finishCreation(VM&);
66 static void destroy(JSCell*);
67 static void visitChildren(JSCell*, SlotVisitor&);
68
69 Ref<Wasm::Table> m_table;
70};
71
72} // namespace JSC
73
74#endif // ENABLE(WEBASSEMBLY)
75