/// <summary>
/// Returns a hash code using the specified <see cref="StringComparison"/>.
/// </summary>
public int GetHashCode(StringComparison comparison)
{
// TODO_UTF8STRING: This perf can be improved, including removing
// the virtual dispatch by putting the switch directly in this method.
return(Utf8StringComparer.FromComparison(comparison).GetHashCode(this));
}
/// <summary>
/// Performs an equality comparison using the specified <see cref="StringComparison"/>.
/// </summary>
public static bool Equals(Utf8String?a, Utf8String?b, StringComparison comparison)
{
// TODO_UTF8STRING: This perf can be improved, including removing
// the virtual dispatch by putting the switch directly in this method.
return(Utf8StringComparer.FromComparison(comparison).Equals(a, b));
}
public void RandomFlatBufferStringComparison()
{
Random rng = new Random();
int min = char.MinValue;
int max = char.MaxValue;
for (int i = 0; i < 10000; ++i)
{
StringBuilder sb = new StringBuilder();
StringBuilder sb2 = new StringBuilder();
for (int j = 0; j < 100; ++j)
{
sb.Append((char)rng.Next(min, max));
sb2.Append((char)rng.Next(min, max));
}
string str = sb.ToString();
string str2 = sb2.ToString();
Span <byte> span = SerializationHelpers.Encoding.GetBytes(str);
Span <byte> span2 = SerializationHelpers.Encoding.GetBytes(str2);
Utf8StringComparer utf8Comparer = new Utf8StringComparer();
Assert.Equal(0, StringSpanComparer.Instance.Compare(true, span, true, span));
Assert.Equal(0, utf8Comparer.Compare(str, str));
Assert.Equal(0, StringSpanComparer.Instance.Compare(true, span2, true, span2));
Assert.Equal(0, utf8Comparer.Compare(str2, str2));
int expected = utf8Comparer.Compare(str, str2);
int actual = StringSpanComparer.Instance.Compare(true, span, true, span2);
Assert.Equal(expected, actual);
expected = utf8Comparer.Compare(str2, str);
actual = StringSpanComparer.Instance.Compare(true, span2, true, span);
Assert.Equal(expected, actual);
}
}
public int CompareTo(Utf8String?other, StringComparison comparison)
{
// TODO_UTF8STRING: We can avoid the virtual dispatch by moving the switch into this method.
return(Utf8StringComparer.FromComparison(comparison).Compare(this, other));
}
