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-rw-r--r--Source/JavaScriptCore/wasm/WASMReader.cpp141
1 files changed, 0 insertions, 141 deletions
diff --git a/Source/JavaScriptCore/wasm/WASMReader.cpp b/Source/JavaScriptCore/wasm/WASMReader.cpp
deleted file mode 100644
index 28e1357a1..000000000
--- a/Source/JavaScriptCore/wasm/WASMReader.cpp
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * Copyright (C) 2015 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "WASMReader.h"
-
-#if ENABLE(WEBASSEMBLY)
-
-#include <wtf/text/StringBuilder.h>
-
-#define CHECK_READ(length) do { if (m_cursor + length > m_buffer.end()) return false; } while (0)
-
-namespace JSC {
-
-bool WASMReader::readUInt32(uint32_t& result)
-{
- CHECK_READ(4);
- result = m_cursor[0] | m_cursor[1] << 8 | m_cursor[2] << 16 | m_cursor[3] << 24;
- m_cursor += 4;
- return true;
-}
-
-bool WASMReader::readFloat(float& result)
-{
- CHECK_READ(4);
- union {
- uint8_t bytes[4];
- float floatValue;
- } u = {
-#if CPU(BIG_ENDIAN)
- { m_cursor[3], m_cursor[2], m_cursor[1], m_cursor[0] }
-#else
- { m_cursor[0], m_cursor[1], m_cursor[2], m_cursor[3] }
-#endif
- };
- result = u.floatValue;
- m_cursor += 4;
- return true;
-}
-
-bool WASMReader::readDouble(double& result)
-{
- CHECK_READ(8);
- union {
- uint8_t bytes[8];
- double doubleValue;
- } u = {
-#if CPU(BIG_ENDIAN)
- { m_cursor[7], m_cursor[6], m_cursor[5], m_cursor[4], m_cursor[3], m_cursor[2], m_cursor[1], m_cursor[0] }
-#else
- { m_cursor[0], m_cursor[1], m_cursor[2], m_cursor[3], m_cursor[4], m_cursor[5], m_cursor[6], m_cursor[7] }
-#endif
- };
- result = u.doubleValue;
- m_cursor += 8;
- return true;
-}
-
-bool WASMReader::readCompactUInt32(uint32_t& result)
-{
- uint32_t sum = 0;
- unsigned shift = 0;
- do {
- CHECK_READ(1);
- uint32_t byte = *m_cursor++;
- if (byte < 0x80) {
- if ((shift == 28 && byte >= 0x10) || (shift && !byte))
- return false;
- result = sum | (byte << shift);
- return true;
- }
- sum |= (byte & firstSevenBitsMask) << shift;
- shift += 7;
- } while (shift < 35);
- return false;
-}
-
-bool WASMReader::readString(String& result)
-{
- StringBuilder builder;
- while (true) {
- CHECK_READ(1);
- char c = *m_cursor++;
- if (!c)
- break;
- builder.append(c);
- }
- result = builder.toString();
- return true;
-}
-
-bool WASMReader::readType(WASMType& result)
-{
- return readByte<WASMType>(result, (uint8_t)WASMType::NumberOfTypes);
-}
-
-bool WASMReader::readExpressionType(WASMExpressionType& result)
-{
- return readByte<WASMExpressionType>(result, (uint8_t)WASMExpressionType::NumberOfExpressionTypes);
-}
-
-bool WASMReader::readExportFormat(WASMExportFormat& result)
-{
- return readByte<WASMExportFormat>(result, (uint8_t)WASMExportFormat::NumberOfExportFormats);
-}
-
-template <class T> bool WASMReader::readByte(T& result, uint8_t numberOfValues)
-{
- CHECK_READ(1);
- uint8_t byte = *m_cursor++;
- if (byte >= numberOfValues)
- return false;
- result = T(byte);
- return true;
-}
-
-} // namespace JSC
-
-#endif // ENABLE(WEBASSEMBLY)