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23c45ca806
This leaves the code in ScriptLoader and ScriptLoadHandler a lot more readable. ScriptBytecodeCompressedDataLayout and ScriptBytecodeDataLayout simplify locating data in the ScriptLoadRequest bytecode buffer when compressing and decompressing it. The interface is still error-prone. For example, these classes don't check that the returned pointers are within the bounds of the buffer. Differential Revision: https://phabricator.services.mozilla.com/D145011
43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef js_loader_ScriptCompression_h
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#define js_loader_ScriptCompression_h
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#include "ErrorList.h"
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#include "mozilla/Vector.h"
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namespace JS::loader {
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class ScriptLoadRequest;
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/**
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* Compress the bytecode stored in a buffer. All data before the bytecode is
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* copied into the output buffer without modification.
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*
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* @param aBytecodeBuf buffer containing the uncompressed bytecode
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* @param aBytecodeOffset offset of the bytecode in the buffer
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* @param aCompressedBytecodeBufOut buffer to store the compressed bytecode in
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*/
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bool ScriptBytecodeCompress(
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mozilla::Vector<uint8_t>& aBytecodeBuf, size_t aBytecodeOffset,
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mozilla::Vector<uint8_t>& aCompressedBytecodeBufOut);
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/**
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* Uncompress the bytecode stored in a buffer. All data before the bytecode is
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* copied into the output buffer without modification.
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*
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* @param aCompressedBytecodeBuf buffer containing the compressed bytecode
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* @param aBytecodeOffset offset of the bytecode in the buffer
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* @param aBytecodeBufOut buffer to store the uncompressed bytecode in
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*/
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bool ScriptBytecodeDecompress(mozilla::Vector<uint8_t>& aCompressedBytecodeBuf,
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size_t aBytecodeOffset,
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mozilla::Vector<uint8_t>& aBytecodeBufOut);
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} // namespace JS::loader
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#endif // js_loader_ScriptCompression_h
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