public unsafe void ReverseEnumerateCodePointsConstructFromSpan()
{
TestCase[] testCases = new TestCase[] {
new TestCase(GetRandomString(5, 32, 126), "Short ASCII string", 3000000),
new TestCase(GetRandomString(5, 32, 0xD7FF), "Short string", 3000000),
new TestCase(GetRandomString(50000, 32, 126), "Long ASCII string", 300),
new TestCase(GetRandomString(50000, 32, 0xD7FF), "Long string", 300)
};
foreach (TestCase testData in testCases)
{
string s = testData.String;
Utf8String utf8s = new Utf8String(s);
fixed(byte *bytes = utf8s.CopyBytes())
{
utf8s = new Utf8String(new Span <byte>(bytes, utf8s.Length));
int iterations = testData.Iterations;
_timer.Restart();
while (iterations-- != 0)
{
Utf8String.CodePointReverseEnumerator it = utf8s.CodePoints.GetReverseEnumerator();
while (it.MoveNext())
{
var codePoint = it.Current;
}
}
PrintTime(testData);
}
}
}
public void ReverseEnumerateCodePointsConstructFromByteArray()
{
TestCase[] testCases = new TestCase[] {
new TestCase(GetRandomString(5, 32, 126), "Short ASCII string", 3000000),
new TestCase(GetRandomString(5, 32, 0xD7FF), "Short string", 3000000),
new TestCase(GetRandomString(50000, 32, 126), "Long ASCII string", 300),
new TestCase(GetRandomString(50000, 32, 0xD7FF), "Long string", 300)
};
foreach (TestCase testData in testCases)
{
string s = testData.String;
Utf8String utf8s = new Utf8String(s);
utf8s = new Utf8String(utf8s.CopyBytes());
int iterations = testData.Iterations;
_timer.Restart();
while (iterations-- != 0)
{
Utf8String.CodePointReverseEnumerator it = utf8s.CodePoints.GetReverseEnumerator();
while (it.MoveNext())
{
UnicodeCodePoint codePoint = it.Current;
}
}
PrintTime(testData);
}
}
public unsafe void ReverseEnumerateCodePointsConstructFromSpan(int length, int minCodePoint, int maxCodePoint, string description, bool useInnerLoop = false)
{
string s = GetRandomString(length, minCodePoint, maxCodePoint);
Utf8String utf8s = new Utf8String(s);
fixed(byte *bytes = utf8s.CopyBytes())
{
utf8s = new Utf8String(new Span <byte>(bytes, utf8s.Length));
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < (useInnerLoop ? Benchmark.InnerIterationCount : 1); i++)
{
Utf8String.CodePointReverseEnumerator it = utf8s.CodePoints.GetReverseEnumerator();
while (it.MoveNext())
{
var codePoint = it.Current;
}
}
}
}
}
}
private void TestCodePointReverseEnumerator(string s, Utf8String u8s)
{
List<UnicodeCodePoint> codePoints = new List<UnicodeCodePoint>();
Utf8String.CodePointReverseEnumerator it = u8s.CodePoints.GetReverseEnumerator();
while (it.MoveNext())
{
codePoints.Add(it.Current);
}
codePoints.Reverse();
Utf16LittleEndianCodePointEnumerable utf16CodePoints = new Utf16LittleEndianCodePointEnumerable(s);
Assert.Equal(utf16CodePoints, codePoints);
Utf8String u8s2 = new Utf8String(codePoints);
Assert.Equal(u8s, u8s2);
Assert.Equal(s, u8s2.ToString());
}