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62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
/* 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 BYTE_WRITER_H_
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#define BYTE_WRITER_H_
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#include "mozilla/EndianUtils.h"
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#include "nsTArray.h"
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namespace mozilla {
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template <typename Endianess>
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class ByteWriter {
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public:
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explicit ByteWriter(nsTArray<uint8_t>& aData) : mPtr(aData) {}
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~ByteWriter() = default;
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[[nodiscard]] bool WriteU8(uint8_t aByte) { return Write(&aByte, 1); }
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[[nodiscard]] bool WriteU16(uint16_t aShort) {
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uint8_t c[2];
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Endianess::writeUint16(&c[0], aShort);
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return Write(&c[0], 2);
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}
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[[nodiscard]] bool WriteU32(uint32_t aLong) {
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uint8_t c[4];
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Endianess::writeUint32(&c[0], aLong);
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return Write(&c[0], 4);
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}
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[[nodiscard]] bool Write32(int32_t aLong) {
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uint8_t c[4];
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Endianess::writeInt32(&c[0], aLong);
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return Write(&c[0], 4);
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}
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[[nodiscard]] bool WriteU64(uint64_t aLongLong) {
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uint8_t c[8];
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Endianess::writeUint64(&c[0], aLongLong);
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return Write(&c[0], 8);
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}
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[[nodiscard]] bool Write64(int64_t aLongLong) {
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uint8_t c[8];
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Endianess::writeInt64(&c[0], aLongLong);
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return Write(&c[0], 8);
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}
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[[nodiscard]] bool Write(const uint8_t* aSrc, size_t aCount) {
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return mPtr.AppendElements(aSrc, aCount, mozilla::fallible);
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}
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private:
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nsTArray<uint8_t>& mPtr;
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};
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} // namespace mozilla
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#endif
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