internal override bool ApplyNullableTransforms(byte defaultTransformFlag, ImmutableArray <byte> transforms, ref int position, out TypeSymbol result)
{
TypeSymbolWithAnnotations oldElementType = ElementType;
TypeSymbolWithAnnotations newElementType;
if (!oldElementType.ApplyNullableTransforms(defaultTransformFlag, transforms, ref position, out newElementType))
{
result = this;
return(false);
}
result = WithElementType(newElementType);
return(true);
}
internal static TypeSymbolWithAnnotations TransformType(TypeSymbolWithAnnotations metadataType, ImmutableArray <bool> nullableTransformFlags, INonNullTypesContext nonNullTypesContext)
{
int position = 0;
TypeSymbolWithAnnotations result;
if (metadataType.ApplyNullableTransforms(nullableTransformFlags, nonNullTypesContext, ref position, out result) &&
(nullableTransformFlags.IsDefault || position == nullableTransformFlags.Length))
{
return(result);
}
// No NullableAttribute applied to the target symbol, or flags do not line-up, return unchanged metadataType.
return(metadataType);
}
internal static TypeSymbolWithAnnotations TransformType(TypeSymbolWithAnnotations metadataType, byte defaultTransformFlag, ImmutableArray <byte> nullableTransformFlags)
{
if (nullableTransformFlags.IsDefault && defaultTransformFlag == 0)
{
return(metadataType);
}
int position = 0;
TypeSymbolWithAnnotations result;
if (metadataType.ApplyNullableTransforms(defaultTransformFlag, nullableTransformFlags, ref position, out result) &&
(nullableTransformFlags.IsDefault || position == nullableTransformFlags.Length))
{
return(result);
}
// No NullableAttribute applied to the target symbol, or flags do not line-up, return unchanged metadataType.
return(metadataType);
}