private static string GetElementTypeName(Generator gen, ITypeRequestSource source, TypeReference t, TypeUsage usage)
{
if (t.FullName == "System.String")
{
switch (usage)
{
case TypeUsage.Raw: return("HSTRING");
case TypeUsage.In: return("&HStringArg");
case TypeUsage.Out: return("HString");
case TypeUsage.GenericArg: return("HString");
default: throw new NotSupportedException();
}
}
else if (t.FullName == "System.Object")
{
switch (usage)
{
case TypeUsage.Raw: return("*mut IInspectable");
case TypeUsage.GenericArg: return("IInspectable");
case TypeUsage.In: return("&IInspectable");
case TypeUsage.Out: return("Option<ComPtr<IInspectable>>");
default: throw new InvalidOperationException();
}
}
else if (t.FullName == "System.Guid")
{
return("Guid");
}
else if (t.IsPrimitive)
{
switch (t.FullName)
{
case "System.Boolean":
return("bool");
case "System.SByte":
return("i8");
case "System.Int16":
return("i16");
case "System.Int32":
return("i32");
case "System.Int64":
return("i64");
case "System.Byte":
return("u8");
case "System.UInt16":
return("u16");
case "System.UInt32":
return("u32");
case "System.UInt64":
return("u64");
case "System.Single":
return("f32");
case "System.Double":
return("f64");
case "System.Char":
return("Char");
default:
throw new NotImplementedException("Primitive type: " + t.FullName);
}
}
else
{
var def = gen.GetTypeDefinition(t);
source.AddDependency(def);
string name = def.GetPath(source.Module);
int i = name.IndexOf('`');
if (i >= 0)
{
name = name.Substring(0, i);
}
if (t.IsGenericInstance)
{
var ty = (GenericInstanceType)t;
if (!ty.ContainsGenericParameter)
{
gen.AddGenericInstance(ty);
}
name += $"<{ String.Join(", ", ty.GenericArguments.Select(a => GetTypeName(gen, source, a, TypeUsage.GenericArg))) }>";
}
if (!t.IsValueType)
{
if (usage == TypeUsage.In)
{
name = $"&{ name }";
}
else if (usage == TypeUsage.GenericArg)
{
// leave name unchanged
}
else if (usage == TypeUsage.Raw)
{
name = $"*mut { name }";
}
else if (usage == TypeUsage.Out)
{
name = $"Option<ComPtr<{ name }>>";
}
else if (usage == TypeUsage.OutNonNull)
{
name = $"ComPtr<{ name }>";
}
}
return(name);
}
}