public override void VisitYield(YieldStatement yield)
{
if (exceptionLevel > 0) {
report.Error(yield.Location,
"`yield' statements may not appear " +
"in `protect' statements.");
return;
}
if (yield.Value != null) {
ilGenerator.Emit(OpCodes.Ldarg_0);
yield.Value.Accept(this);
BoxIfNecessary(yield.Value.RawType,
currentIter.Current.FieldType);
ilGenerator.Emit(OpCodes.Stfld, currentIter.Current);
}
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Ldc_I4, yield.ResumePoint.Index);
ilGenerator.Emit(OpCodes.Stfld, currentIter.CurrentPosition);
ilGenerator.Emit(OpCodes.Ldc_I4_1);
ilGenerator.Emit(OpCodes.Br, returnLabel);
ilGenerator.MarkLabel(yield.ResumePoint.Label);
}
public override void VisitYield(YieldStatement yield)
{
if (currentIter == null) {
report.Error(yield.Location,
"`yield' statements may not appear in routines.");
return;
}
CheckReturnValue(yield);
yield.ResumePoint.Index = currentIter.ResumePoints.Count;
currentIter.ResumePoints.Add(yield.ResumePoint);
}
public virtual void VisitYield(YieldStatement yield)
{
}