private void VisitExpression(Expression expression, MethodProperties meth)
{
if (expression is IdentifierExpression)
{
VisitExpression((IdentifierExpression)expression, meth);
}
else if (expression is AssignmentExpression)
{
VisitExpression((AssignmentExpression)expression, meth);
}
else if (expression is PrimitiveExpression)
{
VisitExpression((PrimitiveExpression)expression, meth);
}
else if (expression is BinaryOperatorExpression)
{
VisitExpression((BinaryOperatorExpression)expression, meth);
}
else if (expression is MemberReferenceExpression)
{
//TODO something
}
else if (expression is ParenthesizedExpression)
{
VisitExpression((ParenthesizedExpression)expression, meth);
}
else if (expression is ConditionalExpression)
{
VisitExpression((ConditionalExpression)expression, meth);
}
else if (expression is InvocationExpression)
{
VisitExpression((InvocationExpression)expression, meth);
}
}
public void VisitStatement(ElseIfSection statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(statement.Condition, meth);
VisitStatement(statement.EmbeddedStatement, meth);
}
public void VisitStatement(BlockStatement statement, MethodProperties meth)
{
meth.LOCReal++;
foreach (var innerStatement in ((BlockStatement)statement).Children)
{
VisitStatement((Statement)innerStatement, meth);
}
}
public void VisitStatement(LocalVariableDeclaration statement, MethodProperties meth)
{
meth.NumberOfVariables += statement.Variables.Count;
foreach (VariableDeclaration variable in statement.Variables)
{
VisitExpression(variable.Initializer, meth);
}
}
public void VisitExpression(BinaryOperatorExpression expression, MethodProperties meth)
{
if (((BinaryOperatorExpression)expression).Op == BinaryOperatorType.LogicalAnd || ((BinaryOperatorExpression)expression).Op == BinaryOperatorType.LogicalOr)
{
meth.CyclometricComplexity++;
VisitExpression(((BinaryOperatorExpression)expression).Left, meth);
VisitExpression(((BinaryOperatorExpression)expression).Right, meth);
}
}
public void VisitStatement(DoLoopStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(statement.Condition, meth);
foreach (var innerStatement in statement.EmbeddedStatement.Children)
{
VisitStatement(innerStatement, meth);
}
}
public void VisitStatement(ForeachStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(((ForeachStatement)(statement)).Expression, meth);
VisitExpression(statement.NextExpression, meth);
foreach (var innerStatement in ((ForeachStatement)statement).EmbeddedStatement.Children)
{
VisitStatement((Statement)innerStatement, meth);
}
}
private static StringBuilder GenerateMethodMetricText(MethodProperties item)
{
StringBuilder results = new StringBuilder();
results.Append(GettextCatalog.GetString("\nName : " + item.FullName));
results.Append(GettextCatalog.GetString("\nTotal number of local variables : " + item.NumberOfVariables));
results.Append(GettextCatalog.GetString("\nTotal number of parameters : " + item.ParameterCount));
results.Append(GettextCatalog.GetString("\nAfferent Coupling : " + item.AfferentCoupling));
results.Append(GettextCatalog.GetString("\nEfferent Coupling : " + item.EfferentCoupling));
return(results);
}
public void VisitStatement(SwitchStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(((SwitchStatement)statement).SwitchExpression, meth);
foreach (SwitchSection innerSection in ((SwitchStatement)statement).SwitchSections)
{
meth.CyclometricComplexity++;
foreach (var caseLabel in innerSection.SwitchLabels)
{
VisitExpression(caseLabel.ToExpression, meth);
}
}
}
public void VisitExpression(IdentifierExpression expression, MethodProperties meth)
{
if (cls.Fields.ContainsKey(expression.Identifier))
{
cls.Fields[expression.Identifier].InternalAccessCount++;
}
else
{
foreach (var field in cls.Fields)
{
//TODO External access
}
}
}
internal static void EvaluateMethodLOC(MethodProperties prop, List <LineSegment> text, Mono.TextEditor.Document doc)
{
ulong totalLines = 0, totalRealLines = 0, totalCommentedLines = 0;
int realLines = 0;
bool isSingleLineComment = false;
bool isMultipleLineComment = false;
int startIndex = prop.StartLine;
int endIndex = prop.EndLine;
for (int i = startIndex; i < endIndex; i++)
{
string lineText = "";
try{
lineText = doc.GetTextAt(text[i]).Trim();
} catch (Exception e) {
continue;
}
if (isMultipleLineComment)
{
totalCommentedLines++;
if (lineText.EndsWith("*/"))
{
isMultipleLineComment = false;
}
continue;
}
if (lineText.StartsWith("/*"))
{
isMultipleLineComment = true;
totalCommentedLines++;
continue;
}
isSingleLineComment = lineText.StartsWith("//");
if (isSingleLineComment)
{
totalCommentedLines++;
}
if (lineText.Length > 0 && !isSingleLineComment)
{
realLines++;
}
}
totalLines += (ulong)(endIndex - startIndex + 1);
totalRealLines += (ulong)realLines;
((MethodProperties)prop).LOCComments = totalCommentedLines;
((MethodProperties)prop).LOCReal = totalRealLines + 1;
}
public void VisitStatement(ForNextStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(statement.LoopVariableExpression, meth);
foreach (Expression innerExpression in statement.NextExpressions)
{
VisitExpression(innerExpression, meth);
}
foreach (var innerStatement in statement.EmbeddedStatement.Children)
{
VisitStatement(innerStatement, meth);
}
}
private void VisitStatement(ICSharpCode.NRefactory.Ast.INode statement, MethodProperties meth)
{
try{
if (statement is BlockStatement)
{
VisitStatement((BlockStatement)statement, meth);
}
else if (statement is IfElseStatement)
{
VisitStatement((IfElseStatement)statement, meth);
}
else if (statement is ElseIfSection)
{
VisitStatement((ElseIfSection)statement, meth);
}
else if (statement is ForeachStatement)
{
VisitStatement((ForeachStatement)statement, meth);
}
else if (statement is ForStatement)
{
VisitStatement((ForStatement)statement, meth);
}
else if (statement is ForNextStatement)
{
VisitStatement((ForNextStatement)statement, meth);
}
else if (statement is DoLoopStatement)
{
VisitStatement((DoLoopStatement)statement, meth);
}
else if (statement is SwitchStatement)
{
VisitStatement((SwitchStatement)statement, meth);
}
else if (statement is LocalVariableDeclaration)
{
VisitStatement((LocalVariableDeclaration)statement, meth);
}
else if (statement is ExpressionStatement)
{
VisitStatement((ExpressionStatement)statement, meth);
}
}catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
//See other potential types to exploit
}
internal static void EvaluateComplexityMetrics (ICSharpCode.NRefactory.Ast.INode method, MethodProperties props)
{
props.CyclometricComplexity = 1;
props.LOCReal=0;
props.NumberOfVariables=0;
cls = props.ParentClass;
ASTVisitor ctxAstVisitor = new ASTVisitor();
if(method is MethodDeclaration) {
foreach (var statement in ((MethodDeclaration)method).Body.Children) {
ctxAstVisitor.VisitStatement(statement, props);
}
} else if (method is ConstructorDeclaration) {
foreach (var statement in ((ConstructorDeclaration)method).Body.Children) {
ctxAstVisitor.VisitStatement(statement, props);
}
}
cls.CyclometricComplexity += props.CyclometricComplexity;
}
public static string EvaluateMethodCoupling(InvocationExpression expression, MethodProperties meth)
{
Console.WriteLine(expression.ToString());
meth.EfferentCoupling++;
StringBuilder calleeName = new StringBuilder();
List <string> paramList = new List <string>();
MethodProperties methCallee = null;
lock (coupleLock)
{
if (expression.TargetObject is MemberReferenceExpression)
{
calleeName.Append(ExtractCalleeFullName((MemberReferenceExpression)(expression.TargetObject), meth));
paramList = ExtractParamList(expression, meth);
try {
methCallee = ComplexityMetrics.ProjProp.GetMethodReference(calleeName.ToString(), paramList);
methCallee.AfferentCoupling++;
} catch (Exception e) {
Console.WriteLine(e.ToString());
}
}
else if (expression.TargetObject is IdentifierExpression)
{
calleeName.Append(((IdentifierExpression)expression.TargetObject).Identifier);
paramList = ExtractParamList(expression, meth);
try {
Console.WriteLine(calleeName.ToString());
methCallee = ComplexityMetrics.ProjProp.GetMethodReference(calleeName.ToString(), paramList);
methCallee.AfferentCoupling++;
} catch (Exception e) {
Console.WriteLine(e.ToString());
}
}
}
return(methCallee.Method.ReturnType.FullName);
}
public void VisitStatement(IfElseStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
//Process the conditions
VisitExpression(((IfElseStatement)statement).Condition, meth);
//Handle the true statement
foreach (Statement innerStatement in ((IfElseStatement)statement).TrueStatement)
{
VisitStatement(innerStatement, meth);
}
//Handle the false statement
foreach (Statement innerStatement in ((IfElseStatement)statement).FalseStatement)
{
meth.CyclometricComplexity++;
VisitStatement(innerStatement, meth);
}
//Handle the ElseIf statements
foreach (ElseIfSection elseIfSection in ((IfElseStatement)statement).ElseIfSections)
{
VisitStatement(elseIfSection, meth);
}
}
public static string EvaluateMethodCoupling(InvocationExpression expression, MethodProperties meth)
{
Console.WriteLine(expression.ToString());
meth.EfferentCoupling++;
StringBuilder calleeName = new StringBuilder();
List<string> paramList = new List<string>();
MethodProperties methCallee = null;
lock(coupleLock)
{
if(expression.Target is MemberReferenceExpression) {
calleeName.Append(ExtractCalleeFullName((MemberReferenceExpression)(expression.Target), meth));
paramList = ExtractParamList(expression, meth);
try {
// methCallee = ComplexityMetrics.ProjProp.GetMethodReference(calleeName.ToString(), paramList);
methCallee.AfferentCoupling++;
} catch (Exception e) {
Console.WriteLine(e.ToString());
}
} else if (expression.Target is IdentifierExpression) {
calleeName.Append(((IdentifierExpression)expression.Target).Identifier);
paramList = ExtractParamList(expression, meth);
try {
Console.WriteLine(calleeName.ToString());
// methCallee = ComplexityMetrics.ProjProp.GetMethodReference(calleeName.ToString(), paramList);
methCallee.AfferentCoupling++;
} catch (Exception e) {
Console.WriteLine(e.ToString());
}
}
}
return methCallee.Method.ReturnType.ToString ();
}
private void VisitExpression(Expression expression, MethodProperties meth)
{
if(expression is IdentifierExpression){
VisitExpression((IdentifierExpression)expression, meth);
} else if (expression is AssignmentExpression) {
VisitExpression((AssignmentExpression)expression, meth);
} else if (expression is PrimitiveExpression) {
VisitExpression((PrimitiveExpression)expression, meth);
} else if (expression is BinaryOperatorExpression) {
VisitExpression((BinaryOperatorExpression) expression, meth);
} else if (expression is MemberReferenceExpression) {
//TODO something
} else if (expression is ParenthesizedExpression) {
VisitExpression((ParenthesizedExpression)expression, meth);
} else if (expression is ConditionalExpression) {
VisitExpression((ConditionalExpression)expression, meth);
} else if (expression is InvocationExpression) {
VisitExpression((InvocationExpression)expression, meth);
}
}
public void VisitExpression(PrimitiveExpression expression, MethodProperties meth)
{
return;
}
public void VisitStatement (SwitchStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(((SwitchStatement)statement).SwitchExpression, meth);
foreach(SwitchSection innerSection in ((SwitchStatement)statement).SwitchSections){
meth.CyclometricComplexity++;
foreach(var caseLabel in innerSection.SwitchLabels)
VisitExpression(caseLabel.ToExpression, meth);
}
}
public void VisitStatement (ExpressionStatement statement, MethodProperties meth)
{
//TODO Ability to evaluate access count of external fields
// Currently we assume that MemberReferenceExpression is not called and that we directly go on to IdentifierExpression
VisitExpression(statement.Expression, meth);
}
public void VisitStatement (ElseIfSection statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(statement.Condition, meth);
VisitStatement(statement.EmbeddedStatement, meth);
}
public void VisitStatement (ForNextStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(statement.LoopVariableExpression, meth);
foreach(Expression innerExpression in statement.NextExpressions)
VisitExpression(innerExpression, meth);
foreach(var innerStatement in statement.EmbeddedStatement.Children)
VisitStatement(innerStatement, meth);
}
private static List<string> ExtractParamList(InvocationExpression expression, MethodProperties meth)
{
List<string> retVal = new List<string>();
foreach(Expression param in expression.Arguments)
{
if(param is PrimitiveExpression) {
retVal.Add(((PrimitiveExpression)param).Value.GetType().Name);
continue;
} else if(param is BinaryOperatorExpression) {
if(((BinaryOperatorExpression)param).Operator == BinaryOperatorType.ConditionalAnd || ((BinaryOperatorExpression)param).Operator == BinaryOperatorType.ConditionalOr)
retVal.Add("System.Boolean");
continue;
} else if (param is InvocationExpression) {
// TODO Deal with method calls within method calls
// Lots of cases
retVal.Add(EvaluateMethodCoupling((InvocationExpression)param, meth));
}
}
return retVal;
}
public void VisitStatement (BlockStatement statement, MethodProperties meth)
{
meth.LOCReal++;
foreach(var innerStatement in ((BlockStatement)statement).Children)
VisitStatement((Statement)innerStatement, meth);
}
public void VisitExpression(MemberReferenceExpression expression, MethodProperties meth)
{
return;
}
/// <summary>
/// Afferent coupling at field level
/// </summary>
/// <param name="expression">
/// A <see cref="IdentifierExpression"/>
/// </param>
/// <param name="meth">
/// A <see cref="MethodProperties"/>
/// </param>
public static void EvaluateFieldCoupling(IdentifierExpression expression, MethodProperties meth)
{
//TODO
}
public void VisitExpression(ParenthesizedExpression expression, MethodProperties meth)
{
VisitExpression(((ParenthesizedExpression)expression).Expression, meth);
}
public void VisitExpression(ConditionalExpression expression, MethodProperties meth)
{
VisitExpression(((ConditionalExpression)expression).Condition, meth);
VisitExpression(((ConditionalExpression)expression).TrueExpression, meth);
}
public void VisitExpression(AssignmentExpression expression, MethodProperties meth)
{
VisitExpression(expression.Left, meth);
VisitExpression(expression.Right, meth);
}
public void VisitExpression (PrimitiveExpression expression, MethodProperties meth)
{
return;
}
/// <summary>
/// Afferent coupling at field level
/// </summary>
/// <param name="expression">
/// A <see cref="IdentifierExpression"/>
/// </param>
/// <param name="meth">
/// A <see cref="MethodProperties"/>
/// </param>
public static void EvaluateFieldCoupling(IdentifierExpression expression, MethodProperties meth)
{
//TODO
}
public void VisitExpression (InvocationExpression expression, MethodProperties meth)
{
//Coupling.EvaluateMethodCoupling(expression, meth);
}
private static string ExtractCalleeFullName(MemberReferenceExpression expression, MethodProperties meth)
{
if (expression.TargetObject is MemberReferenceExpression)
{
return(ExtractCalleeFullName((MemberReferenceExpression)(expression.TargetObject), meth) + "." + expression.MemberName);
}
if (expression.TargetObject is IdentifierExpression)
{
return(((IdentifierExpression)(expression.TargetObject)).Identifier + "." + expression.MemberName);
}
return("");
}
public void VisitStatement (IfElseStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
//Process the conditions
VisitExpression(((IfElseStatement)statement).Condition, meth);
//Handle the true statement
foreach(Statement innerStatement in ((IfElseStatement)statement).TrueStatement)
VisitStatement(innerStatement, meth);
//Handle the false statement
foreach(Statement innerStatement in ((IfElseStatement)statement).FalseStatement) {
meth.CyclometricComplexity++;
VisitStatement(innerStatement, meth);
}
//Handle the ElseIf statements
foreach(ElseIfSection elseIfSection in ((IfElseStatement)statement).ElseIfSections)
VisitStatement(elseIfSection, meth);
}
public void VisitExpression (MemberReferenceExpression expression, MethodProperties meth)
{
return;
}
public void VisitStatement (ForeachStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(((ForeachStatement)(statement)).Expression, meth);
VisitExpression(statement.NextExpression, meth);
foreach(var innerStatement in ((ForeachStatement)statement).EmbeddedStatement.Children)
VisitStatement((Statement)innerStatement, meth);
}
public void VisitExpression (ParenthesizedExpression expression, MethodProperties meth)
{
VisitExpression(((ParenthesizedExpression)expression).Expression, meth);
}
public void VisitStatement (DoLoopStatement statement, MethodProperties meth)
{
meth.CyclometricComplexity++;
VisitExpression(statement.Condition, meth);
foreach(var innerStatement in statement.EmbeddedStatement.Children)
VisitStatement(innerStatement, meth);
}
public void VisitExpression (ConditionalExpression expression, MethodProperties meth)
{
VisitExpression(((ConditionalExpression)expression).Condition, meth);
VisitExpression(((ConditionalExpression)expression).TrueExpression, meth);
}
public void VisitStatement (LocalVariableDeclaration statement, MethodProperties meth)
{
meth.NumberOfVariables+=statement.Variables.Count;
foreach(VariableDeclaration variable in statement.Variables)
VisitExpression(variable.Initializer, meth);
}
public void VisitExpression (IdentifierExpression expression, MethodProperties meth)
{
if(cls.Fields.ContainsKey(expression.Identifier)){
cls.Fields[expression.Identifier].InternalAccessCount++;
} else {
foreach(var field in cls.Fields){
//TODO External access
}
}
}
private void VisitStatement(ICSharpCode.NRefactory.Ast.INode statement, MethodProperties meth)
{
try{
if(statement is BlockStatement){
VisitStatement((BlockStatement)statement, meth);
} else if (statement is IfElseStatement) {
VisitStatement((IfElseStatement)statement, meth);
} else if (statement is ElseIfSection) {
VisitStatement((ElseIfSection)statement, meth);
} else if (statement is ForeachStatement) {
VisitStatement((ForeachStatement)statement, meth);
} else if (statement is ForStatement) {
VisitStatement((ForStatement)statement,meth);
} else if (statement is ForNextStatement) {
VisitStatement((ForNextStatement)statement, meth);
} else if (statement is DoLoopStatement) {
VisitStatement((DoLoopStatement)statement, meth);
} else if (statement is SwitchStatement) {
VisitStatement((SwitchStatement)statement, meth);
} else if (statement is LocalVariableDeclaration) {
VisitStatement((LocalVariableDeclaration)statement, meth);
} else if (statement is ExpressionStatement) {
VisitStatement((ExpressionStatement)statement, meth);
}
}catch(Exception ex){
Console.WriteLine(ex.ToString());
}
//See other potential types to exploit
}
public void VisitExpression (AssignmentExpression expression, MethodProperties meth)
{
VisitExpression(expression.Left, meth);
VisitExpression(expression.Right, meth);
}
public void VisitStatement(ExpressionStatement statement, MethodProperties meth)
{
//TODO Ability to evaluate access count of external fields
// Currently we assume that MemberReferenceExpression is not called and that we directly go on to IdentifierExpression
VisitExpression(statement.Expression, meth);
}
public void VisitExpression(InvocationExpression expression, MethodProperties meth)
{
//Coupling.EvaluateMethodCoupling(expression, meth);
}
internal static void EvaluateMethodLOC(MethodProperties prop, List<LineSegment> text, Mono.TextEditor.Document doc)
{
ulong totalLines = 0, totalRealLines = 0, totalCommentedLines = 0;
int realLines = 0;
bool isSingleLineComment = false;
bool isMultipleLineComment = false;
int startIndex=prop.StartLine;
int endIndex=prop.EndLine;
for(int i=startIndex;i< endIndex;i++)
{
string lineText = "";
try{
lineText = doc.GetTextAt(text[i]).Trim();
} catch (Exception e) {
continue;
}
if(isMultipleLineComment){
totalCommentedLines++;
if(lineText.EndsWith("*/"))
isMultipleLineComment = false;
continue;
}
if(lineText.StartsWith ("/*")){
isMultipleLineComment = true;
totalCommentedLines++;
continue;
}
isSingleLineComment = lineText.StartsWith ("//");
if(isSingleLineComment)
totalCommentedLines++;
if (lineText.Length > 0 && !isSingleLineComment)
realLines++;
}
totalLines += (ulong)(endIndex-startIndex+1);
totalRealLines += (ulong)realLines;
((MethodProperties)prop).LOCComments = totalCommentedLines;
((MethodProperties)prop).LOCReal = totalRealLines + 1;
}
internal static void EvaluateComplexityMetrics(ICSharpCode.OldNRefactory.Ast.INode method, MethodProperties props)
{
props.CyclometricComplexity = 1;
props.LOCReal = 0;
props.NumberOfVariables = 0;
cls = props.ParentClass;
ASTVisitor ctxAstVisitor = new ASTVisitor();
if (method is MethodDeclaration)
{
foreach (var statement in ((MethodDeclaration)method).Body.Children)
{
ctxAstVisitor.VisitStatement(statement, props);
}
}
else if (method is ConstructorDeclaration)
{
foreach (var statement in ((ConstructorDeclaration)method).Body.Children)
{
ctxAstVisitor.VisitStatement(statement, props);
}
}
cls.CyclometricComplexity += props.CyclometricComplexity;
}
private static string ExtractCalleeFullName(MemberReferenceExpression expression, MethodProperties meth)
{
if(expression.Target is MemberReferenceExpression)
{
return ExtractCalleeFullName((MemberReferenceExpression)(expression.Target), meth)+"."+expression.MemberName;
}
if(expression.Target is IdentifierExpression)
{
return ((IdentifierExpression)(expression.Target)).Identifier+"."+expression.MemberName;
}
return "";
}
private static StringBuilder GenerateMethodMetricText(MethodProperties item)
{
StringBuilder results = new StringBuilder();
results.Append(GettextCatalog.GetString("\nName : " + item.FullName));
results.Append(GettextCatalog.GetString("\nTotal number of local variables : " + item.NumberOfVariables));
results.Append(GettextCatalog.GetString("\nTotal number of parameters : " + item.ParameterCount));
results.Append(GettextCatalog.GetString("\nAfferent Coupling : " + item.AfferentCoupling));
results.Append(GettextCatalog.GetString("\nEfferent Coupling : " + item.EfferentCoupling));
return results;
}
public void VisitExpression (BinaryOperatorExpression expression, MethodProperties meth)
{
if(((BinaryOperatorExpression)expression).Op==BinaryOperatorType.LogicalAnd||((BinaryOperatorExpression)expression).Op==BinaryOperatorType.LogicalOr) {
meth.CyclometricComplexity++;
VisitExpression(((BinaryOperatorExpression)expression).Left , meth);
VisitExpression(((BinaryOperatorExpression)expression).Right, meth);
}
}
private static List <string> ExtractParamList(InvocationExpression expression, MethodProperties meth)
{
List <string> retVal = new List <string>();
foreach (Expression param in expression.Arguments)
{
if (param is PrimitiveExpression)
{
retVal.Add(((PrimitiveExpression)param).Value.GetType().Name);
continue;
}
else if (param is BinaryOperatorExpression)
{
if (((BinaryOperatorExpression)param).Op == BinaryOperatorType.LogicalAnd || ((BinaryOperatorExpression)param).Op == BinaryOperatorType.LogicalOr)
{
retVal.Add("System.Boolean");
}
continue;
}
else if (param is InvocationExpression)
{
// TODO Deal with method calls within method calls
// Lots of cases
retVal.Add(EvaluateMethodCoupling((InvocationExpression)param, meth));
}
}
return(retVal);
}