EcmaValue IGeneratorEnumerable.Resume(GeneratorResumeState state, EcmaValue value)
{
switch (state)
{
case GeneratorResumeState.Return:
throw new GeneratorClosedException(value);
case GeneratorResumeState.Throw:
throw EcmaException.FromValue(value);
}
if (MoveNext())
{
return(EcmaValueUtility.CreateIterResultObject(this.Current, false));
}
return(EcmaValueUtility.CreateIterResultObject(EcmaValue.Undefined, true));
}
public override EcmaValue Resume(GeneratorResumeState state, EcmaValue value)
{
if (this.State == GeneratorState.Running)
{
throw new EcmaTypeErrorException(InternalString.Error.GeneratorRunning);
}
nextState = state;
if (this.State != GeneratorState.SuspendedYield)
{
switch (state)
{
case GeneratorResumeState.Throw:
Close();
throw EcmaException.FromValue(value);
case GeneratorResumeState.Return:
Close();
return(EcmaValueUtility.CreateIterResultObject(value, true));
}
}
else
{
resumeValue = value;
}
if (this.State != GeneratorState.Closed)
{
try {
this.State = GeneratorState.Running;
if (TryYieldNext(out EcmaValue result))
{
return(EcmaValueUtility.CreateIterResultObject(result, false));
}
} catch {
if (nextState != GeneratorResumeState.Return)
{
Close();
throw;
}
} finally {
if (this.State != GeneratorState.Closed)
{
this.State = GeneratorState.SuspendedYield;
}
}
Close();
}
return(EcmaValueUtility.CreateIterResultObject(nextState == GeneratorResumeState.Return ? resumeValue : default, true));