public static bool IsReturnTypeNonNull(TypeReference t, Generator gen)
{
var nonNullReturnTypes = new string[]
{
"Windows.Foundation.IAsyncAction",
"Windows.Foundation.IAsyncActionWithProgress`1",
"Windows.Foundation.IAsyncOperation`1",
"Windows.Foundation.IAsyncOperationWithProgress`2"
};
if (nonNullReturnTypes.Contains(t.GetElementType().FullName))
{
return(true);
}
if (t.IsGenericParameter || t.IsArray || t.IsValueType || t.IsPrimitive ||
t.FullName == "System.String" || t.FullName == "System.Object" || t.FullName == "System.Guid")
{
return(false);
}
else
{
// we mark class types as non-null if their default interface is non-null
var def = gen.GetTypeDefinition(t);
if (def.Kind == TypeKind.Class)
{
var defaultInterface = TypeHelpers.GetDefaultInterface(def.Type);
return(nonNullReturnTypes.Contains(defaultInterface.GetElementType().FullName));
}
else
{
return(false);
}
}
}
public override void CollectDependencies()
{
foreach (var staticType in statics)
{
AddDependency(Generator.GetTypeDefinition(staticType));
}
factories = GetFactoryTypes().Select(f => TypeHelpers.GetTypeName(Generator, this, f, TypeUsage.Alias)).ToArray();
if (Type.Interfaces.Count > 0)
{
var defaultInterface = TypeHelpers.GetDefaultInterface(Type);
aliasedType = TypeHelpers.GetTypeName(Generator, this, defaultInterface, TypeUsage.Alias);
}
var factoryMethods = GetFactoryTypes().OrderBy(f => f.FullName).SelectMany(f => Generator.GetTypeDefinition(f).Methods).ToArray();
var staticMethods = statics.OrderBy(s => s.FullName).SelectMany(s => Generator.GetTypeDefinition(s).Methods).ToArray();
foreach (var m in factoryMethods)
{
methodWrappers.Add(new ClassMethodDef(m, this, true));
}
foreach (var m in staticMethods)
{
methodWrappers.Add(new ClassMethodDef(m, this, false));
}
// fix name clashes in method wrappers (caused by overloads from different interfaces)
foreach (var nameToFix in methodWrappers.GroupBy(m => m.Name).Where(g => g.Count() > 1))
{
// we expect that there is a single base name (modulo suffix numbers) for all clashing interfaces
string baseName = nameToFix.Select(n => n.WrappedMethod.DeclaringType.Name.TrimEnd('1', '2', '3', '4', '5', '6', '7', '8', '9', '0')).Distinct().Single();
foreach (var m in nameToFix)
{
// so far this is always "2"
var nameSuffix = m.WrappedMethod.DeclaringType.Name.Replace(baseName, "");
m.FixupName(nameSuffix);
}
}
}
