public static System.Attribute ConvertPlatformAttribute(CustomAttributeData attribute, PlatformName platform)
{
var constructorArguments = new object [attribute.ConstructorArguments.Count];
for (int i = 0; i < attribute.ConstructorArguments.Count; ++i)
{
constructorArguments [i] = attribute.ConstructorArguments [i].Value;
}
Func <string> createErrorMessage = () => {
var b = new System.Text.StringBuilder(" Types { ");
for (int i = 0; i < constructorArguments.Length; ++i)
{
b.Append(constructorArguments[i].GetType().ToString() + " ");
}
b.Append("}");
return(b.ToString());
};
Func <string> unknownFormatError = () => $"Unknown format for old style availability attribute {attribute.AttributeType.FullName} {attribute.ConstructorArguments.Count} {createErrorMessage ()}";
object [] ctorValues;
System.Type [] ctorTypes;
switch (attribute.ConstructorArguments.Count)
{
case 2:
if (constructorArguments [0].GetType() == typeof(byte) &&
constructorArguments [1].GetType() == typeof(byte))
{
ctorValues = new object [] { (byte)platform, (int)(byte)constructorArguments [0], (int)(byte)constructorArguments [1], (byte)0xff, null };
ctorTypes = new System.Type [] { AttributeFactory.PlatformEnum, typeof(int), typeof(int), AttributeFactory.PlatformArch, typeof(string) };
break;
}
throw new NotImplementedException(unknownFormatError());
case 3:
if (constructorArguments [0].GetType() == typeof(byte) &&
constructorArguments [1].GetType() == typeof(byte) &&
constructorArguments [2].GetType() == typeof(byte))
{
ctorValues = new object [] { (byte)platform, (int)(byte)constructorArguments [0], (int)(byte)constructorArguments [1], (int)(byte)constructorArguments [2], (byte)0xff, null };
ctorTypes = new System.Type [] { AttributeFactory.PlatformEnum, typeof(int), typeof(int), typeof(int), AttributeFactory.PlatformArch, typeof(string) };
break;
}
if (constructorArguments [0].GetType() == typeof(byte) &&
constructorArguments [1].GetType() == typeof(byte) &&
constructorArguments [2].GetType() == typeof(bool))
{
byte arch = (bool)constructorArguments [2] ? (byte)2 : (byte)0xff;
ctorValues = new object [] { (byte)platform, (int)(byte)constructorArguments [0], (int)(byte)constructorArguments [1], arch, null };
ctorTypes = new System.Type [] { AttributeFactory.PlatformEnum, typeof(int), typeof(int), AttributeFactory.PlatformArch, typeof(string) };
break;
}
throw new NotImplementedException(unknownFormatError());
case 4:
if (constructorArguments [0].GetType() == typeof(byte) &&
constructorArguments [1].GetType() == typeof(byte) &&
constructorArguments [2].GetType() == typeof(byte) &&
constructorArguments [3].GetType() == typeof(bool))
{
byte arch = (bool)constructorArguments [3] ? (byte)2 : (byte)0xff;
ctorValues = new object [] { (byte)platform, (int)(byte)constructorArguments [0], (int)(byte)constructorArguments [1], (int)(byte)constructorArguments [2], arch, null };
ctorTypes = new System.Type [] { AttributeFactory.PlatformEnum, typeof(int), typeof(int), typeof(int), AttributeFactory.PlatformArch, typeof(string) };
break;
}
if (constructorArguments [0].GetType() == typeof(byte) &&
constructorArguments [1].GetType() == typeof(byte) &&
constructorArguments [2].GetType() == typeof(byte) &&
constructorArguments [3].GetType() == typeof(byte) /* ObjCRuntime.PlatformArchitecture */)
{
ctorValues = new object [] { (byte)platform, (int)(byte)constructorArguments [0], (int)(byte)constructorArguments [1], (int)(byte)constructorArguments [2], constructorArguments [3], null };
ctorTypes = new System.Type [] { AttributeFactory.PlatformEnum, typeof(int), typeof(int), typeof(int), AttributeFactory.PlatformArch, typeof(string) };
break;
}
throw new NotImplementedException(unknownFormatError());
default:
throw new NotImplementedException($"Unknown count {attribute.ConstructorArguments.Count} {createErrorMessage ()}");
}
return(AttributeFactory.CreateNewAttribute(AttributeFactory.IntroducedAttributeType, ctorTypes, ctorValues));
}