protected async Task EvaluateUpToAsync(int to)
{
if (_store.ValidationError != null || _hasEvaluationError)
{
return;
}
try
{
await InitContextAsync();
while (_lastIndex < to && _blocks.State != BlockState.Done)
{
EvaluateResult result = await _blocks.EvaluateAsync();
if (result.Type == ResultType.Var)
{
_store.SaveVariable(_lastIndex, result.Data);
_lastIndex++;
}
}
}
catch (ExpressionEvaluationFailed ex)
{
ErrorVariableInformation error =
NatvisErrorUtils.LogAndGetExpandChildrenValidationError(
Optional ? NatvisLoggingLevel.WARNING : NatvisLoggingLevel.ERROR, _logger,
VisualizerName, _variable?.TypeName, ex.Message);
_hasEvaluationError = true;
if (_lastIndex != 0 || !Optional)
{
_store.SaveVariable(_lastIndex, error);
_lastIndex++;
}
}
}
public async Task <EvaluateResult> EvaluateAsync()
{
if (_position >= _blocks.Count)
{
State = BlockState.Done;
return(EvaluateResult.None());
}
State = BlockState.InProgress;
ICodeBlock currentBlock = _blocks[_position];
EvaluateResult result = await currentBlock.EvaluateAsync();
if (result.Type == ResultType.Break)
{
State = BlockState.Done;
}
else if (currentBlock.State == BlockState.Done)
{
_position++;
}
return(result);
}