10235internal sealed partial class OperationCloner : OperationVisitor<object?, IOperation>

27internal sealed partial class ControlFlowGraphBuilder : OperationVisitor<int?, IOperation>

399OperationVisitor<(ImmutableDictionary<IFlowAnonymousFunctionOperation, (ControlFlowRegion region, int ordinal)>.Builder map, ControlFlowRegion region), IOperation>

11internal sealed partial class OperationCloner : OperationVisitor<object?, IOperation>

55public abstract class OperationWalker<TArgument> : OperationVisitor<TArgument, object?>

3681public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBlock(this, argument); 3736public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableDeclarationGroup(this, argument); 3806public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitch(this, argument); 3912public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitForEachLoop(this, argument); 4004public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitForLoop(this, argument); 4116public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitForToLoop(this, argument); 4140public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitWhileLoop(this, argument); 4193public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLabeled(this, argument); 4213public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBranch(this, argument); 4227public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEmpty(this, argument); 4279public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitReturn(this, argument); 4343public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLock(this, argument); 4422public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTry(this, argument); 4490public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUsing(this, argument); 4541public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitExpressionStatement(this, argument); 4605public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLocalFunction(this, argument); 4619public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitStop(this, argument); 4633public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEnd(this, argument); 4699public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRaiseEvent(this, argument); 4717public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLiteral(this, argument); 4777public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConversion(this, argument); 4850public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInvocation(this, argument); 4917public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArrayElementReference(this, argument); 4939public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLocalReference(this, argument); 4958public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitParameterReference(this, argument); 5023public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFieldReference(this, argument); 5079public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitMethodReference(this, argument); 5148public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPropertyReference(this, argument); 5202public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEventReference(this, argument); 5265public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUnaryOperator(this, argument); 5343public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBinaryOperator(this, argument); 5420public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConditional(this, argument); 5487public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCoalesce(this, argument); 5540public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAnonymousFunction(this, argument); 5610public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitObjectCreation(this, argument); 5662public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTypeParameterObjectCreation(this, argument); 5729public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArrayCreation(this, argument); 5748public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInstanceReference(this, argument); 5804public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIsType(this, argument); 5856public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAwait(this, argument); 5929public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSimpleAssignment(this, argument); 6004public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCompoundAssignment(this, argument); 6057public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitParenthesized(this, argument); 6122public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEventAssignment(this, argument); 6185public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConditionalAccess(this, argument); 6202public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConditionalAccessInstance(this, argument); 6259public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedString(this, argument); 6315public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAnonymousObjectCreation(this, argument); 6371public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitObjectOrCollectionInitializer(this, argument); 6434public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitMemberInitializer(this, argument); 6487public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitNameOf(this, argument); 6545public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTuple(this, argument); 6603public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDynamicMemberReference(this, argument); 6655public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTranslatedQuery(this, argument); 6707public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDelegateCreation(this, argument); 6725public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDefaultValue(this, argument); 6744public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTypeOf(this, argument); 6764public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSizeOf(this, argument); 6816public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAddressOf(this, argument); 6879public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIsPattern(this, argument); 6942public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIncrementOrDecrement(this, argument); 6994public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitThrow(this, argument); 7053public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDeconstructionAssignment(this, argument); 7105public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDeclarationExpression(this, argument); 7122public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitOmittedArgument(this, argument); 7184public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFieldInitializer(this, argument); 7231public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableInitializer(this, argument); 7282public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPropertyInitializer(this, argument); 7333public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitParameterInitializer(this, argument); 7388public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArrayInitializer(this, argument); 7456public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableDeclarator(this, argument); 7537public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableDeclaration(this, argument); 7598public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArgument(this, argument); 7675public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCatchClause(this, argument); 7749public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitchCase(this, argument); 7773public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDefaultCaseClause(this, argument); 7836public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPatternCaseClause(this, argument); 7898public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRangeCaseClause(this, argument); 7951public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRelationalCaseClause(this, argument); 8002public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSingleValueCaseClause(this, argument); 8058public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringText(this, argument); 8131public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolation(this, argument); 8193public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConstantPattern(this, argument); 8215public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDeclarationPattern(this, argument); 8280public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTupleBinaryOperator(this, argument); 8347public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitMethodBodyOperation(this, argument); 8418public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConstructorBodyOperation(this, argument); 8437public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDiscardOperation(this, argument); 8490public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFlowCapture(this, argument); 8512public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFlowCaptureReference(this, argument); 8565public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIsNull(this, argument); 8582public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCaughtException(this, argument); 8601public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitStaticLocalInitializationSemaphore(this, argument); 8660public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCoalesceAssignment(this, argument); 8727public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRangeOperation(this, argument); 8784public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitReDim(this, argument); 8850public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitReDimClause(this, argument); 8926public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRecursivePattern(this, argument); 8940public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDiscardPattern(this, argument); 9009public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitchExpression(this, argument); 9084public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitchExpressionArm(this, argument); 9146public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPropertySubpattern(this, argument); 9209public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAggregateQuery(this, argument); 9273public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFixed(this, argument); 9325public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitNoPiaObjectCreation(this, argument); 9344public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPlaceholder(this, argument); 9406public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitWithStatement(this, argument); 9461public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUsingDeclaration(this, argument); 9512public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitNegatedPattern(this, argument); 9576public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBinaryPattern(this, argument); 9594public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTypePattern(this, argument); 9647public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRelationalPattern(this, argument); 9712public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitWith(this, argument); 9779public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringHandlerCreation(this, argument); 9841public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringAddition(this, argument); 9893public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringAppend(this, argument); 9913public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringHandlerArgumentPlaceholder(this, argument); 9980public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFunctionPointerInvocation(this, argument); 10041public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitListPattern(this, argument); 10094public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSlicePattern(this, argument); 10161public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitImplicitIndexerReference(this, argument); 10180public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUtf8String(this, argument); 10231public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAttribute(this, argument);

65TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument);

136public abstract TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument);

73public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 144public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 176public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 326public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 408public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 490public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default

52/// Represents a <see cref="OperationVisitor{TArgument, TResult}"/> that descends an entire <see cref="IOperation"/> tree