public override Object Visit(WhileStatement node, Object obj)
{
Object aux = null;
SSAMap map1 = this.map.Clone();
if ((aux = node.Condition.Accept(this, false)) is SingleIdentifierExpression)
{
node.Condition = (SingleIdentifierExpression)aux;
}
SSAMap map2 = this.map.Clone();
this.map.SetScope();
node.Statements.Accept(this, obj);
this.addLocalVariable(this.map.ResetScope(), node.Statements);
// map3 = this.map
List <MoveStatement> mvSt = map1.GetMoveStatements(this.map, node.Location.FileName, node.Location.Line);
if (mvSt.Count != 0)
{
node.InitWhile = mvSt;
}
List <ThetaStatement> thSt = map1.GetThetaStatements(map2, ref this.map, node.Location.FileName, node.Condition.Location.Line);
if (thSt.Count != 0)
{
node.BeforeCondition = thSt;
}
mvSt = map1.GetMoveStatements(map2, this.map, node.Location.FileName, node.Condition.Location.Line);
if (mvSt.Count != 0)
{
node.AfterCondition = mvSt;
}
SSAInfo info = new SSAInfo(null, null, map1, this.map);
node.Condition.Accept(new VisitorSSA2(), info);
info = new SSAInfo(this.map, null, map1, this.map);
node.Statements.Accept(new VisitorSSA2(), info);
return(null);
}
public override Object Visit(SwitchStatement node, Object obj)
{
Object aux = null;
List <SSAMap> mapsSwitch = new List <SSAMap>();
int indexDefaultMap = -1;
if ((aux = node.Condition.Accept(this, false)) is SingleIdentifierExpression)
{
node.Condition = (SingleIdentifierExpression)aux;
}
SSAMap map0 = this.map.Clone();
IList <SingleIdentifierExpression> previousCaseReferences = this.referencesUsedInCaseBody;
for (int i = 0; i < node.SwitchBlockCount; i++)
{
// * Updates the current if statatement body being analyzed
IList <SingleIdentifierExpression> caseReferences = new List <SingleIdentifierExpression>();
node.ReferencesUsedCases[node.GetSwitchSectionElement(i).SwitchBlock] = caseReferences;
IList <SingleIdentifierExpression> previousReferencesUsedInCaseBody = this.referencesUsedInCaseBody;
this.referencesUsedInCaseBody = caseReferences;
this.map.SetScope();
node.GetSwitchSectionElement(i).Accept(this, false);
if (node.GetSwitchSectionElement(i).IsDefaultCase())
{
indexDefaultMap = i;
}
this.addLocalVariable(this.map.ResetScope(), node.GetSwitchSectionElement(i).SwitchBlock);
mapsSwitch.Add(this.map.Clone());
}
this.referencesUsedInCaseBody = previousCaseReferences;
// lastMap => this.map
List <MoveStatement> mvSt;
if (indexDefaultMap == -1)
{
mvSt = map0.GetMoveStatements(this.map, node.Location.FileName, node.Location.Line);
}
else
{
mvSt = map0.GetMoveStatementsForSwitch(mapsSwitch, node.Location.FileName, node.Location.Line);
}
if (mvSt.Count != 0)
{
node.AfterCondition = mvSt;
}
for (int i = 0; i < node.SwitchBlockCount; i++)
{
SSAInfo info;
if (i > 0)
{
info = new SSAInfo(mapsSwitch[i], this.map, mapsSwitch[i - 1], map0);
}
else
{
info = new SSAInfo(mapsSwitch[i], this.map, null, null);
}
node.GetSwitchSectionElement(i).Accept(new VisitorSSA2(), info);
}
List <ThetaStatement> thSt;
if (indexDefaultMap != -1)
{
thSt = map0.GetThetaStatements(mapsSwitch, ref this.map, true, node.Location.FileName, node.GetSwitchSectionElement(node.SwitchBlockCount - 1).SwitchBlock.Location.Line);
}
else
{
thSt = map0.GetThetaStatements(mapsSwitch, ref this.map, false, node.Location.FileName, node.GetSwitchSectionElement(node.SwitchBlockCount - 1).SwitchBlock.Location.Line);
}
if (thSt.Count != 0)
{
node.ThetaStatements = thSt;
}
return(null);
}
public override Object Visit(IfElseStatement node, Object obj)
{
Object aux = null;
if ((aux = node.Condition.Accept(this, false)) is SingleIdentifierExpression)
{
node.Condition = (SingleIdentifierExpression)aux;
}
SSAMap map1 = this.map.Clone();
this.map.SetScope();
// * Updates the current if statatement body being analyzed
IList <SingleIdentifierExpression> previousReferencesUsedInIfElseBody = this.referencesUsedInIfElseBody;
this.referencesUsedInIfElseBody = node.ReferencesUsedInTrueBranch;
node.TrueBranch.Accept(this, obj);
this.addLocalVariable(this.map.ResetScope(), node.TrueBranch);
SSAMap map2 = this.map.Clone();
this.map.SetScope();
this.referencesUsedInIfElseBody = node.ReferencesUsedInFalseBranch;
node.FalseBranch.Accept(this, obj);
// * Updates the previous if statatement being analyzed
this.referencesUsedInIfElseBody = previousReferencesUsedInIfElseBody;
this.addLocalVariable(this.map.ResetScope(), node.FalseBranch);
// map3 = this.map
List <MoveStatement> mvSt = map1.GetMoveStatementsForIf(map2, this.map, node.Location.FileName, node.Condition.Location.Line);
if (mvSt.Count != 0)
{
node.AfterCondition = mvSt;
}
SSAInfo info = new SSAInfo(map2, this.map, null, null);
node.TrueBranch.Accept(new VisitorSSA2(), info);
info = new SSAInfo(this.map, this.map, map2, map1);
node.FalseBranch.Accept(new VisitorSSA2(), info);
List <ThetaStatement> thSt;
if (node.HaveElseBlock())
{
thSt = map2.GetThetaStatements(ref this.map, map1, node.Location.FileName, node.FalseBranch.Location.Line);
}
else
{
thSt = map1.GetThetaStatements(ref this.map, node.Location.FileName, node.FalseBranch.Location.Line);
}
if (thSt.Count != 0)
{
node.ThetaStatements = thSt;
}
return(null);
}