private void CreateAnonymousGeneratorType()
{
// Set up some important types
_sourceItemType = TypeSystemServices.ObjectType;
_sourceEnumeratorType = TypeSystemServices.IEnumeratorType;
_sourceEnumerableType = TypeSystemServices.IEnumerableType;
_resultEnumeratorType = TypeSystemServices.IEnumeratorGenericType.GenericInfo.ConstructType(_skeleton.GeneratorItemType);
_enumerator = _collector.CreateSkeletonClass("Enumerator", _generator.LexicalInfo);
// use a generic enumerator for the source type if possible
_sourceItemType = TypeSystemServices.GetGenericEnumerableItemType(_generator.Iterator.ExpressionType);
if (_sourceItemType != null && _sourceItemType != TypeSystemServices.ObjectType)
{
_sourceEnumerableType = TypeSystemServices.IEnumerableGenericType.GenericInfo.ConstructType(_sourceItemType);
_sourceEnumeratorType = TypeSystemServices.IEnumeratorGenericType.GenericInfo.ConstructType(_sourceItemType);
}
else
{
_sourceItemType = TypeSystemServices.ObjectType;
}
// Add base types
_enumerator.AddBaseType(_resultEnumeratorType);
_enumerator.AddBaseType(TypeSystemServices.Map(typeof(ICloneable)));
_enumerator.AddBaseType(TypeSystemServices.IDisposableType);
// Add fields
_enumeratorField = _enumerator.AddField("$$enumerator", _sourceEnumeratorType);
_current = _enumerator.AddField("$$current", _skeleton.GeneratorItemType);
// Add methods
CreateReset();
CreateCurrent();
CreateMoveNext();
CreateClone();
CreateDispose();
EnumeratorConstructorMustCallReset();
_collector.AdjustReferences();
BooClassBuilder generatorClassBuilder = _skeleton.GeneratorClassBuilder;
_collector.DeclareFieldsAndConstructor(generatorClassBuilder);
CreateGetEnumerator();
generatorClassBuilder.ClassDefinition.Members.Add(_enumerator.ClassDefinition);
}
