public OptionalAttributeInfo(DmdParameterInfo parameter)
{
if (parameter.IsOptional)
{
var caType = parameter.Member.AppDomain.GetWellKnownType(DmdWellKnownType.System_Runtime_InteropServices_OptionalAttribute, isOptional: true);
ctor = caType?.GetConstructor(Array.Empty <DmdType>());
Debug.Assert((object)caType == null || (object)ctor != null);
}
else
{
ctor = null;
}
}
/// <summary>
/// Compares two method parameters
/// </summary>
/// <param name="a">First method parameter</param>
/// <param name="b">Second method parameter</param>
/// <returns></returns>
public bool Equals(DmdParameterInfo a, DmdParameterInfo b)
{
if ((object)a == b)
{
return(true);
}
if ((object)a == null || (object)b == null)
{
return(false);
}
return(a.Position == b.Position &&
Equals(a.ParameterType, b.ParameterType) &&
(!CompareDeclaringType || Equals(a.Member, b.Member)));
}
/// <summary>
/// Gets the hash code of a method parameter
/// </summary>
/// <param name="a">Method parameter</param>
/// <returns></returns>
public int GetHashCode(DmdParameterInfo a)
{
if ((object)a == null)
{
return(0);
}
int hc = a.Position;
hc ^= GetHashCode(a.ParameterType);
if (CompareDeclaringType)
{
hc ^= GetHashCode(a.Member);
}
return(hc);
}
void Write(DmdParameterInfo parameter)
{
FormatTypeName(parameter.ParameterType, GetTypeFlags(true) | TypeFlags.FnPtrIsIntPtr);
writer.Append(' ');
writer.Append(parameter.Name);
}
string FormatCore(DmdParameterInfo parameter)
{
Write(parameter);
return(writer.ToString());
}
public static string Format(DmdParameterInfo parameter, bool serializable = false)
{
using (var formatter = new DmdMemberFormatter(serializable ? GlobalFlags.Serializable : GlobalFlags.None))
return(formatter.FormatCore(parameter));
}
public MarshalAsAttributeInfo(DmdParameterInfo parameter, DmdMarshalType marshalType) => ctor = Initialize(parameter.Member.AppDomain, marshalType);
