public override ControlFlowNode VisitIfElseStatement(IfElseStatement ifElseStatement, ControlFlowNode data)
{
bool?cond = builder.EvaluateCondition(ifElseStatement.Condition);
ControlFlowNode trueBegin = builder.CreateStartNode(ifElseStatement.TrueStatement);
if (cond != false)
{
Connect(data, trueBegin, ControlFlowEdgeType.ConditionTrue);
}
ControlFlowNode trueEnd = ifElseStatement.TrueStatement.AcceptVisitor(this, trueBegin);
ControlFlowNode falseBegin = builder.CreateStartNode(ifElseStatement.FalseStatement);
if (cond != true)
{
Connect(data, falseBegin, ControlFlowEdgeType.ConditionFalse);
}
ControlFlowNode falseEnd = ifElseStatement.FalseStatement.AcceptVisitor(this, falseBegin);
// (if no else statement exists, both falseBegin and falseEnd will be null)
ControlFlowNode end = builder.CreateEndNode(ifElseStatement);
Connect(trueEnd, end);
if (falseEnd != null)
{
Connect(falseEnd, end);
}
else if (cond != true)
{
Connect(data, end, ControlFlowEdgeType.ConditionFalse);
}
return(end);
}
public override ControlFlowNode VisitIfElseStatement(IfElseStatement ifElseStatement, ControlFlowNode data)
{
bool?cond = ifElseStatement.Condition.IsNull ? true : builder.EvaluateCondition(ifElseStatement.Condition);
if (ifElseStatement.TrueStatement.IsNull)
{
return(data);
}
ControlFlowNode trueBegin;
if (ifElseStatement.TrueStatement.IsNull)
{
trueBegin = null;
}
else
{
trueBegin = builder.CreateStartNode(ifElseStatement.TrueStatement);
}
if (cond != false && trueBegin != null)
{
Connect(data, trueBegin, ControlFlowEdgeType.ConditionTrue);
}
ControlFlowNode trueEnd = trueBegin != null?ifElseStatement.TrueStatement.AcceptVisitor(this, trueBegin) : null;
ControlFlowNode falseEnd;
if (ifElseStatement.FalseStatement.IsNull)
{
falseEnd = null;
}
else
{
ControlFlowNode falseBegin = builder.CreateStartNode(ifElseStatement.FalseStatement);
if (cond != true)
{
Connect(data, falseBegin, ControlFlowEdgeType.ConditionFalse);
}
falseEnd = ifElseStatement.FalseStatement.AcceptVisitor(this, falseBegin);
}
ControlFlowNode end = builder.CreateEndNode(ifElseStatement);
if (trueEnd != null)
{
Connect(trueEnd, end);
}
if (falseEnd != null)
{
Connect(falseEnd, end);
}
else if (cond != true)
{
Connect(data, end, ControlFlowEdgeType.ConditionFalse);
}
return(end);
}
