public override void CheckCodeIssues(CheckCodeIssuesEventArgs ea)
{
IEnumerable<IElement> enumerable = ea.GetEnumerable(ea.Scope, new ElementTypeFilter(LanguageElementType.Class));
foreach (IElement element in enumerable)
{
IClassElement iClassElement = element as IClassElement;
if (iClassElement == null)
continue;
if (!PlugIn1.AlreadyImplementsIDisposable(iClassElement))
continue;
// We DO implement IDisposable! Let's make sure all the fields are disposed....
IIfStatement parentIfDisposing;
IList<IFieldElement> disposableFields = PlugIn1.GetDisposableFieldsThatHaveNotBeenDisposed(ea.ResolveScope(), ea.Scope as ISourceFile, iClassElement, out parentIfDisposing);
if (disposableFields.Count > 0)
foreach (IFieldElement disposableField in disposableFields)
ea.AddWarning(disposableField.FirstNameRange, "Fields should be disposed");
}
}
private void CheckIssuesForReferencedLocalOrField(CheckCodeIssuesEventArgs ea, IForStatement loop, IElement lambda, IElement element)
{
if (element.ElementType == LanguageElementType.ElementReferenceExpression)
{
IElement declaration = element.GetDeclaration();
if (declaration.ElementType == LanguageElementType.Variable || declaration.ElementType == LanguageElementType.InitializedVariable)
{
if (loop.Initializers.Contains(declaration) || !declaration.IsParentedBy(loop))
{
ea.AddWarning(element.ToLanguageElement().Range, "Possible unintended closure scope misuse");
}
}
return;
}
foreach (IElement child in element.Children)
{
CheckIssuesForReferencedLocalOrField(ea, loop, lambda, child);
}
}
private void CheckIssuesForReferencedLocalOrField(CheckCodeIssuesEventArgs ea, IForEachStatement loop, IAnonymousMethodExpression lambda, IElement element)
{
if (element.ElementType == LanguageElementType.ElementReferenceExpression)
{
IElement declaration = element.GetDeclaration();
if (declaration.ElementType == LanguageElementType.Variable || declaration.ElementType == LanguageElementType.InitializedVariable)
{
bool isLoopVariable = loop.LoopVariable == declaration;
bool declarationIsParentedByLoop = declaration.IsParentedBy(loop);
if (isLoopVariable || !declarationIsParentedByLoop)
{
ea.AddWarning(element.ToLanguageElement().Range, "Possible unintended closure scope misuse");
}
}
return;
}
foreach (IElement child in element.Children)
{
CheckIssuesForReferencedLocalOrField(ea, loop, lambda, child);
}
}
private void ipClassShouldImplementIDisposable_CheckCodeIssues(object sender, CheckCodeIssuesEventArgs ea)
{
IEnumerable<IElement> enumerable = ea.GetEnumerable(ea.Scope, new ElementTypeFilter(LanguageElementType.Class));
foreach (IElement element in enumerable)
{
IClassElement iClassElement = element as IClassElement;
if (iClassElement == null)
continue;
if (iClassElement.IsStatic)
continue;
if (AlreadyImplementsIDisposable(iClassElement))
continue;
// We do NOT implement IDisposable! Let's see if any of the fields implement IDisposable....
foreach (IElement child in iClassElement.AllChildren)
{
IFieldElement iBaseVariable = child as IFieldElement;
if (iBaseVariable == null)
continue;
if (iBaseVariable.IsStatic)
continue;
if (iBaseVariable.Is("System.IDisposable"))
{
TextRange issueRange = GetIssueRange(ea.Scope, iClassElement);
ea.AddWarning(issueRange, ipClassShouldImplementIDisposable.DisplayName);
break;
}
}
}
}
