public NodeStateTable <TOutput> UpdateStateTable(DriverStateTable.Builder builder, NodeStateTable <TOutput> previousTable, CancellationToken cancellationToken)
{
// grab the source inputs
var sourceTable = builder.GetLatestStateTableForNode(_sourceNode);
if (sourceTable.IsCached)
{
if (builder.DriverState.TrackIncrementalSteps)
{
return(previousTable.CreateCachedTableWithUpdatedSteps(sourceTable, _name));
}
return(previousTable);
}
// Semantics of a transform:
// Element-wise comparison of upstream table
// - Cached or Removed: no transform, just use previous values
// - Added: perform transform and add
// - Modified: perform transform and do element wise comparison with previous results
var newTable = builder.CreateTableBuilder(previousTable, _name);
foreach (var entry in sourceTable)
{
var inputs = newTable.TrackIncrementalSteps ? ImmutableArray.Create((entry.Step !, entry.OutputIndex)) : default;
public NodeStateTable <TOutput> UpdateStateTable(DriverStateTable.Builder graphState, NodeStateTable <TOutput> previousTable, CancellationToken cancellationToken)
{
string stepName = Kind == IncrementalGeneratorOutputKind.Source ? WellKnownGeneratorOutputs.SourceOutput : WellKnownGeneratorOutputs.ImplementationSourceOutput;
var sourceTable = graphState.GetLatestStateTableForNode(_source);
if (sourceTable.IsCached)
{
if (graphState.DriverState.TrackIncrementalSteps)
{
return(previousTable.CreateCachedTableWithUpdatedSteps(sourceTable, stepName));
}
return(previousTable);
}
var nodeTable = graphState.CreateTableBuilder(previousTable, stepName);
foreach (var entry in sourceTable)
{
var inputs = nodeTable.TrackIncrementalSteps ? ImmutableArray.Create((entry.Step !, entry.OutputIndex)) : default;
