public static bool HasGenericArgument(GenericInstanceType type, TypeDefinition searchType, IEmitter emitter, bool deep)
{
foreach (var gArg in type.GenericArguments)
{
var orig = gArg;
var gArgDef = gArg;
if (gArgDef.IsGenericInstance)
{
gArgDef = gArgDef.GetElementType();
}
TypeDefinition gTypeDef = null;
try
{
gTypeDef = Helpers.ToTypeDefinition(gArgDef, emitter);
}
catch
{
}
if (gTypeDef == searchType)
{
return true;
}
if (deep && gTypeDef != null && (Helpers.IsSubclassOf(gTypeDef, searchType, emitter) ||
(searchType.IsInterface && Helpers.IsImplementationOf(gTypeDef, searchType, emitter))))
{
return true;
}
if (orig.IsGenericInstance)
{
var result = Helpers.HasGenericArgument((GenericInstanceType)orig, searchType, emitter, deep);
if (result)
{
return true;
}
}
}
return false;
}
public static bool IsSubclassOf(TypeDefinition thisTypeDefinition, TypeDefinition typeDefinition, IEmitter emitter)
{
if (thisTypeDefinition.BaseType != null)
{
TypeDefinition baseTypeDefinition = null;
try
{
baseTypeDefinition = Helpers.ToTypeDefinition(thisTypeDefinition.BaseType, emitter);
}
catch { }
if (baseTypeDefinition != null)
{
return(baseTypeDefinition == typeDefinition || Helpers.IsSubclassOf(baseTypeDefinition, typeDefinition, emitter));
}
}
return(false);
}
public static bool IsAssignableFrom(TypeDefinition thisTypeDefinition, TypeDefinition typeDefinition, IEmitter emitter)
{
return (thisTypeDefinition == typeDefinition
|| (typeDefinition.IsClass && !typeDefinition.IsValueType && Helpers.IsSubclassOf(typeDefinition, thisTypeDefinition, emitter))
|| (typeDefinition.IsInterface && Helpers.IsImplementationOf(typeDefinition, thisTypeDefinition, emitter)));
}
