[MethodImpl(MethodImplOptions.NoInlining)] // the caller should be inlined, not this method
private static UnicodeRange CreateRange(ref UnicodeRange range, char first, char last)
{
// If the range hasn't been created, create it now.
// It's ok if two threads race and one overwrites the other's 'range' value.
range = UnicodeRange.Create(first, last);
return range;
}
[MethodImpl(MethodImplOptions.NoInlining)] // the caller should be inlined, not this method
private static UnicodeRange CreateEmptyRange(ref UnicodeRange range)
{
// If the range hasn't been created, create it now.
// It's ok if two threads race and one overwrites the other's 'range' value.
range = new UnicodeRange(0, 0);
return range;
}
[MethodImpl(MethodImplOptions.NoInlining)] // the caller should be inlined, not this method
private static UnicodeRange CreateRange(ref UnicodeRange range, char first, char last)
{
// If the range hasn't been created, create it now.
// It's ok if two threads race and one overwrites the other's 'range' value.
Debug.Assert(last > first, "Code points were specified out of order.");
var newRange = UnicodeRange.Create(first, last);
Volatile.Write(ref range, newRange);
return newRange;
}
[MethodImpl(MethodImplOptions.NoInlining)] // the caller should be inlined, not this method
private static UnicodeRange CreateEmptyRange(ref UnicodeRange range)
{
// If the range hasn't been created, create it now.
// It's ok if two threads race and one overwrites the other's 'range' value.
var newRange = new UnicodeRange(0, 0);
Volatile.Write(ref range, newRange);
return(newRange);
}
[MethodImpl(MethodImplOptions.NoInlining)] // the caller should be inlined, not this method
private static UnicodeRange CreateRange(ref UnicodeRange range, char first, char last)
{
// If the range hasn't been created, create it now.
// It's ok if two threads race and one overwrites the other's 'range' value.
Debug.Assert(last > first, "Code points were specified out of order.");
var newRange = UnicodeRange.Create(first, last);
Volatile.Write(ref range, newRange);
return(newRange);
}
/// <summary>
/// Allows all characters specified by <paramref name="range"/> through the filter.
/// </summary>
public virtual void AllowRange(UnicodeRange range)
{
if (range == null)
{
throw new ArgumentNullException(nameof(range));
}
int firstCodePoint = range.FirstCodePoint;
int rangeSize = range.Length;
for (int i = 0; i < rangeSize; i++)
{
_allowedCharactersBitmap.AllowCharacter((char)(firstCodePoint + i));
}
}
[MethodImpl(MethodImplOptions.NoInlining)] // the caller should be inlined, not this method
private static UnicodeRange CreateRange([NotNull] ref UnicodeRange?range, char first, char last)
{
// It's ok if two threads race and one overwrites the other's 'range' value.
Volatile.Write(ref range, UnicodeRange.Create(first, last));
return(range);
}
/// <summary>
/// Disallows all characters specified by <paramref name="range"/> through the filter.
/// </summary>
/// <returns>
/// The 'this' instance.
/// </returns>
public CodePointFilter ForbidRange(UnicodeRange range)
{
if (range == null)
{
throw new ArgumentNullException("range");
}
int firstCodePoint = range.FirstCodePoint;
int rangeSize = range.Length;
for (int i = 0; i < rangeSize; i++)
{
_allowedCharactersBitmap.ForbidCharacter((char)(firstCodePoint + i));
}
return this;
}