/// <summary>
/// Checks whether the fdef has a redefinition from the current not to the end of the method
/// </summary>
/// <param name="fdef"></param>
/// <param name="otherDefinedOffsets"></param>
/// <returns></returns>
private bool HasRedefinition(DUCoverStore dcs, FieldDefUseStore fdef, HashSet<int> otherDefinedOffsets)
{
DEFUSE_FEASIBILITY_TYPE feasibilityVal;
if (this.feasibilityDicCache.TryGetValue(fdef, out feasibilityVal))
{
if (feasibilityVal == DEFUSE_FEASIBILITY_TYPE.DEF_FEASIBLE)
return false;
else
return true;
}
InstructionGraph ig = dcs.GetInstructionGraph(fdef.Method);
DepthFirstTraversal dft = new DepthFirstTraversal(ig);
InstructionVertex iv = ig.GetVertex(fdef.Offset);
var result = dft.HasDefClearPathToEnd(iv, otherDefinedOffsets);
if (result)
this.feasibilityDicCache[fdef] = DEFUSE_FEASIBILITY_TYPE.DEF_FEASIBLE;
else
this.feasibilityDicCache[fdef] = DEFUSE_FEASIBILITY_TYPE.DEF_INFEASIBLE;
return !result;
}
