internal static bool IsBlittable(Type elementType)
{
return(_isBlittableCache.GetOrAdd(elementType, _ =>
{
if (!elementType.IsValueType)
{
return false;
}
if (!TypeFields.IsPrimitive(elementType))
{
return false;
}
try
{
WriteArrayOfValuesMethod1.MakeGenericMethod(elementType);
return true;
}
catch
{
return false;
}
}));
}
private static Expression WriteArrayOfBlittableValues(ParameterExpression output, Expression actualSource,
ParameterExpression stream, int dimensions, Type elementType, int elementSize)
{
return(dimensions switch
{
1 => Expression.Call(output, WriteArrayOfValuesMethod1.MakeGenericMethod(elementType),
actualSource,
Expression.Constant(elementSize)),
2 => Expression.Call(output, WriteArrayOfValuesMethod2.MakeGenericMethod(elementType),
actualSource,
Expression.Constant(elementSize)),
_ => throw new InvalidOperationException($"Blitting multidimensional array with {dimensions} dimensions is not supported"),
});