protected virtual void VisitSimpleBlock(SimpleBlock block, ExplodedGraphNode node)
{
var newProgramState = CleanStateAfterBlock(node.ProgramState, block);
var jumpBlock = block as JumpBlock;
if (jumpBlock != null &&
IsValueConsumingStatement(jumpBlock.JumpNode))
{
newProgramState = newProgramState.PopValue();
}
EnqueueAllSuccessors(block, newProgramState);
}
protected abstract void VisitInstruction(ExplodedGraphNode node);
protected virtual void VisitSingleSuccessorBinaryBranch(BinaryBranchingSimpleBlock block, ExplodedGraphNode node)
{
SymbolicValue sv;
var programState = node.ProgramState.PopValue(out sv);
foreach (var newProgramState in sv.TrySetConstraint(BoolConstraint.True, programState))
{
OnConditionEvaluated(block.BranchingInstruction, evaluationValue: true);
var nps = newProgramState.PushValue(SymbolicValue.True);
EnqueueNewNode(new ProgramPoint(block.SuccessorBlock), nps);
}
foreach (var newProgramState in sv.TrySetConstraint(BoolConstraint.False, programState))
{
OnConditionEvaluated(block.BranchingInstruction, evaluationValue: false);
var nps = newProgramState.PushValue(SymbolicValue.False);
EnqueueNewNode(new ProgramPoint(block.SuccessorBlock), nps);
}
}
protected abstract void VisitBinaryBranch(BinaryBranchBlock binaryBranchBlock, ExplodedGraphNode node);
