protected override bool ProcessCFG()
{
StateMachineDisposeAnalyzer disposeAnalyzer = new StateMachineDisposeAnalyzer(moveNextMethodContext.Method);
StateControllerRemover controllerRemover;
YieldStateMachineVersion machineVersion = disposeAnalyzer.ProcessDisposeMethod();
if (machineVersion == YieldStateMachineVersion.V1)
{
controllerRemover = new StateControllerRemover(moveNextMethodContext);
}
else if (machineVersion == YieldStateMachineVersion.V2)
{
controllerRemover = new DisposingStateControllerRemover(moveNextMethodContext, disposeAnalyzer.StateField, disposeAnalyzer.DisposingField);
StateMachineDoFinallyCheckRemover doFinallyCheckRemover = new StateMachineDoFinallyCheckRemover(moveNextMethodContext);
if (!doFinallyCheckRemover.MarkFinallyConditionsForRemoval())
{
return(false);
}
toBeRemoved.UnionWith(doFinallyCheckRemover.BlocksMarkedForRemoval);
}
else
{
return(false);
}
if (!controllerRemover.RemoveStateMachineController())
{
return(false);
}
toBeRemoved.UnionWith(controllerRemover.BlocksMarkedForRemoval);
SwitchData switchData = controllerRemover.SwitchData;
YieldStateMachineControlFlowRebuilder controlFlowRebuilder =
new YieldStateMachineControlFlowRebuilder(moveNextMethodContext, switchData, controllerRemover.StateField);
if (!controlFlowRebuilder.ProcessEndBlocks())
{
return(false);
}
toBeRemoved.UnionWith(controlFlowRebuilder.BlocksMarkedForRemoval);
StateMachineCFGCleaner cfgCleaner = new StateMachineCFGCleaner(theCFG, switchData, switchData.OrderedCasesArray[0]);
if (!cfgCleaner.CleanUpTheCFG(toBeRemoved))
{
return(false);
}
YieldFieldsInformation fieldsInfo = new YieldFieldsInformation(controllerRemover.StateField,
controlFlowRebuilder.CurrentItemField, controlFlowRebuilder.ReturnFlagVariable);
this.moveNextMethodContext.YieldData =
new YieldData(machineVersion, controlFlowRebuilder.YieldReturnBlocks,
controlFlowRebuilder.YieldBreakBlocks, fieldsInfo, disposeAnalyzer.YieldsExceptionData);
return(true);
}
protected override bool ProcessCFG()
{
if (!GetStateField() || !RemoveStateSavingBlocks())
{
return(false);
}
AsyncMoveNextMethodAnalyzer analyzer = new AsyncMoveNextMethodAnalyzer(this.moveNextMethodContext, this.stateField);
StateMachineFinallyCheckRemoverBase finallyCheckRemover;
if (analyzer.StateMachineVersion == AsyncStateMachineVersion.V1)
{
finallyCheckRemover = new StateMachineDoFinallyCheckRemover(this.moveNextMethodContext);
finallyCheckRemover.MarkFinallyConditionsForRemoval(analyzer.DoFinallyVariable);
}
else
{
finallyCheckRemover = new StateMachineFinallyStateCheckRemover(this.moveNextMethodContext);
finallyCheckRemover.MarkFinallyConditionsForRemoval(analyzer.StateVariable);
}
toBeRemoved.UnionWith(finallyCheckRemover.BlocksMarkedForRemoval);
AsyncStateControllerRemover asyncControllerRemover =
new AsyncStateControllerRemover(this.moveNextMethodContext, this.stateField, analyzer.DoFinallyVariable, analyzer.StateMachineVersion);
if (!asyncControllerRemover.RemoveStateMachineController() && asyncControllerRemover.FoundControllerBlocks)
{
return(false);
}
toBeRemoved.UnionWith(asyncControllerRemover.BlocksMarkedForRemoval);
SwitchData controllerSwitchData;
if (asyncControllerRemover.SwitchData != null)
{
controllerSwitchData = asyncControllerRemover.SwitchData;
}
else if (!CreateFakeSwitchData(out controllerSwitchData))
{
return(false);
}
StateMachineCFGCleaner cfgCleaner = new StateMachineCFGCleaner(this.theCFG, controllerSwitchData, controllerSwitchData.DefaultCase);
if (!cfgCleaner.CleanUpTheCFG(toBeRemoved))
{
return(false);
}
this.moveNextMethodContext.AsyncData = new Decompiler.AsyncData(stateField, awaiterVariables, analyzer.variableToFieldMap);
return(true);
}