public void SetLevel()

in src/ICSharpCode.SharpZipLib/Zip/Compression/DeflaterEngine.cs [304:361]
54 lines of code
11 McCabe index (conditional complexity)

		public void SetLevel(int level)
		{
			if ((level < 0) || (level > 9))
			{
				throw new ArgumentOutOfRangeException(nameof(level));
			}

			goodLength = DeflaterConstants.GOOD_LENGTH[level];
			max_lazy = DeflaterConstants.MAX_LAZY[level];
			niceLength = DeflaterConstants.NICE_LENGTH[level];
			max_chain = DeflaterConstants.MAX_CHAIN[level];

			if (DeflaterConstants.COMPR_FUNC[level] != compressionFunction)
			{
#if DebugDeflation
				if (DeflaterConstants.DEBUGGING) {
				   Console.WriteLine("Change from " + compressionFunction + " to "
										  + DeflaterConstants.COMPR_FUNC[level]);
				}
#endif
				switch (compressionFunction)
				{
					case DeflaterConstants.DEFLATE_STORED:
						if (strstart > blockStart)
						{
							huffman.FlushStoredBlock(window, blockStart,
								strstart - blockStart, false);
							blockStart = strstart;
						}
						UpdateHash();
						break;

					case DeflaterConstants.DEFLATE_FAST:
						if (strstart > blockStart)
						{
							huffman.FlushBlock(window, blockStart, strstart - blockStart,
								false);
							blockStart = strstart;
						}
						break;

					case DeflaterConstants.DEFLATE_SLOW:
						if (prevAvailable)
						{
							huffman.TallyLit(window[strstart - 1] & 0xff);
						}
						if (strstart > blockStart)
						{
							huffman.FlushBlock(window, blockStart, strstart - blockStart, false);
							blockStart = strstart;
						}
						prevAvailable = false;
						matchLen = DeflaterConstants.MIN_MATCH - 1;
						break;
				}
				compressionFunction = DeflaterConstants.COMPR_FUNC[level];
			}
		}