public static void ImportExtensionMethodsIntoPackage(Package package, Type type)
{
package.VerifyNoMissingSymbols();
var isbuiltin = type.Assembly == Assembly.GetExecutingAssembly();
var extendedType = (Type)package.Dict["T"].CheckedValue;
var restrictedImport = type.GetCustomAttributes(typeof(RestrictedImportAttribute), true).Length != 0;
var names = type.GetMethods(ImportBindingFlags).Select(x => x.Name).Distinct().ToArray();
foreach (var name in names)
{
var methods = type.GetMember(name, ImportBindingFlags)
.Where(x => x is MethodInfo)
.Select(x => (MethodInfo)ResolveGenericMethod((MethodInfo)x))
.Where(x => ExtendsType(x, extendedType))
.ToList();
if (methods.Count == 0)
{
continue;
}
var importable = !restrictedImport || methods[0].GetCustomAttributes(typeof(LispAttribute), true).Length != 0;
if (!importable)
{
continue;
}
var sym = package.FindOrCreate(name.LispName(), useMissing: true, excludeUseList: true, export: true);
var builtin = sym.Value as ImportedFunction;
if (builtin == null)
{
sym.FunctionValue = builtin = new ImportedFunction(name, type);
}
if (isbuiltin)
{
// Designed to go before other methods.
methods.AddRange(builtin.BuiltinExtensionMembers);
builtin.BuiltinExtensionMembers = methods.Distinct().ToArray();
}
else
{
// todo: change order
// Goes after other methods as in c#.
methods.AddRange(builtin.ExternalExtensionMembers);
builtin.ExternalExtensionMembers = methods.Distinct().ToArray();
}
}
}
public static void ImportIntoPackage(Package package, Type type)
{
AddPackageByType(type, package);
var restrictedImport = type.GetCustomAttributes(typeof(RestrictedImportAttribute), true).Length != 0;
package.ImportedType = type;
package.RestrictedImport = restrictedImport;
var sym = package.FindOrCreate("T", excludeUseList: true, export: true);
sym.ConstantValue = type;
sym.Documentation = string.Format("The .NET type <{0}> imported in this package.", type);
if (!ToBool(Symbols.LazyImport.Value))
{
package.VerifyNoMissingSymbols();
}
}