protected override bool DoDefineMembers()
{
current_field = AddCompilerGeneratedField("$current", iterator_type_expr);
disposing_field = AddCompilerGeneratedField("$disposing", new TypeExpression(Compiler.BuiltinTypes.Bool, Location));
if (hoisted_params != null)
{
//
// Iterators are independent, each GetEnumerator call has to
// create same enumerator therefore we have to keep original values
// around for re-initialization
//
// TODO: Do it for assigned/modified parameters only
//
hoisted_params_copy = new List <HoistedParameter> (hoisted_params.Count);
foreach (HoistedParameter hp in hoisted_params)
{
hoisted_params_copy.Add(new HoistedParameter(hp, "<$>" + hp.Field.Name));
}
}
if (generic_enumerator_type != null)
{
Define_Current(true);
}
Define_Current(false);
new DisposeMethod(this);
Define_Reset();
if (Iterator.IsEnumerable)
{
FullNamedExpression explicit_iface = new TypeExpression(Compiler.BuiltinTypes.IEnumerable, Location);
var name = new MemberName("GetEnumerator", null, explicit_iface, Location.Null);
if (generic_enumerator_type != null)
{
explicit_iface = new TypeExpression(generic_enumerable_type, Location);
var gname = new MemberName("GetEnumerator", null, explicit_iface, Location.Null);
Method gget_enumerator = GetEnumeratorMethod.Create(this, new TypeExpression(generic_enumerator_type, Location), gname);
//
// Just call generic GetEnumerator implementation
//
var stmt = new Return(new Invocation(new DynamicMethodGroupExpr(gget_enumerator, Location), null), Location);
Method get_enumerator = GetEnumeratorMethod.Create(this, new TypeExpression(Compiler.BuiltinTypes.IEnumerator, Location), name, stmt);
Members.Add(get_enumerator);
Members.Add(gget_enumerator);
}
else
{
Members.Add(GetEnumeratorMethod.Create(this, new TypeExpression(Compiler.BuiltinTypes.IEnumerator, Location), name));
}
}
return(base.DoDefineMembers());
}
