internal static bool Process(System.Data.Entity.Core.Query.PlanCompiler.PlanCompiler compilerState, TransformationRulesGroup rulesGroup)
{
ReadOnlyCollection <ReadOnlyCollection <System.Data.Entity.Core.Query.InternalTrees.Rule> > rulesTable = (ReadOnlyCollection <ReadOnlyCollection <System.Data.Entity.Core.Query.InternalTrees.Rule> >)null;
switch (rulesGroup)
{
case TransformationRulesGroup.All:
rulesTable = TransformationRules.AllRulesTable;
break;
case TransformationRulesGroup.Project:
rulesTable = TransformationRules.ProjectRulesTable;
break;
case TransformationRulesGroup.PostJoinElimination:
rulesTable = TransformationRules.PostJoinEliminationRulesTable;
break;
case TransformationRulesGroup.NullSemantics:
rulesTable = TransformationRules.NullSemanticsRulesTable;
break;
}
bool projectionPruningRequired1;
if (TransformationRules.Process(compilerState, rulesTable, out projectionPruningRequired1))
{
bool projectionPruningRequired2;
TransformationRules.Process(compilerState, TransformationRules.NullabilityRulesTable, out projectionPruningRequired2);
projectionPruningRequired1 = projectionPruningRequired1 || projectionPruningRequired2;
}
return(projectionPruningRequired1);
}
// <summary>
// Helper method for applying transformation rules
// </summary>
private bool ApplyTransformations(ref string dumpString, TransformationRulesGroup rulesGroup)
{
if (MayApplyTransformationRules)
{
dumpString = SwitchToPhase(PlanCompilerPhase.Transformations);
return(TransformationRules.Process(this, rulesGroup));
}
return(false);
}