private void AnalyzeDiagnostic(Diagnostic diagnostic, SuppressionAnalysisContext context)
{
var fieldDeclarationSyntax = context.GetSuppressibleNode <VariableDeclaratorSyntax>(diagnostic);
if (fieldDeclarationSyntax == null)
{
return;
}
var model = context.GetSemanticModel(diagnostic.Location.SourceTree);
if (!(model.GetDeclaredSymbol(fieldDeclarationSyntax) is IFieldSymbol fieldSymbol))
{
return;
}
if (!IsSuppressable(fieldSymbol))
{
return;
}
foreach (var descriptor in SupportedSuppressions.Where(d => d.SuppressedDiagnosticId == diagnostic.Id))
{
context.ReportSuppression(Suppression.Create(descriptor, diagnostic));
}
}
private void AnalyzeDiagnostic(Diagnostic diagnostic, SuppressionAnalysisContext context)
{
var binaryExpression = context.GetSuppressibleNode <BinaryExpressionSyntax>(diagnostic);
if (binaryExpression == null)
{
return;
}
AnalyzeBinaryExpression(diagnostic, context, binaryExpression);
}
private static void AnalyzeDiagnostic(Diagnostic diagnostic, SuppressionAnalysisContext context)
{
var model = context.GetSemanticModel(diagnostic.Location.SourceTree);
var methodDeclarationSyntax = context.GetSuppressibleNode <MethodDeclarationSyntax>(diagnostic);
// Reuse the same detection logic regarding decorated methods with *InitializeOnLoadMethodAttribute
if (InitializeOnLoadMethodAnalyzer.MethodMatches(methodDeclarationSyntax, model, out _, out _))
{
context.ReportSuppression(Suppression.Create(Rule, diagnostic));
}
}
public override void ReportSuppressions(SuppressionAnalysisContext context)
{
foreach (var diagnostic in context.ReportedDiagnostics)
{
var root = diagnostic.Location.SourceTree.GetRoot();
var node = root?.FindNode(diagnostic.Location.SourceSpan);
var classDeclaration = node?.FirstAncestorOrSelf <ClassDeclarationSyntax>();
if (classDeclaration is null)
{
continue;
}
var model = context.GetSemanticModel(diagnostic.Location.SourceTree);
var symbol = model?.GetDeclaredSymbol(classDeclaration);
if (symbol is null)
{
continue;
}
var scriptInfo = new ScriptInfo(symbol);
if (!scriptInfo.HasMessages)
{
continue;
}
var propertyDeclaration = node.FirstAncestorOrSelf <PropertyDeclarationSyntax>();
//handle properties before fields to minimize double checking of potential backing fields
if (!(propertyDeclaration is null))
{
AnalyzeProperties(propertyDeclaration, diagnostic, context, root);
continue;
}
var fieldDeclaration = context.GetSuppressibleNode <VariableDeclaratorSyntax>(diagnostic);
if (fieldDeclaration != null)
{
AnalyzeFields(fieldDeclaration, diagnostic, context, root);
}
//TODO handle nullable warnings for constructors => diagnostic location is now on constructor
//TODO handle other Unity objects that cannot be initialized => e.g. Unity's new Input system
}
}
private static void AnalyzeDiagnostic(Diagnostic diagnostic, SuppressionAnalysisContext context)
{
var sourceTree = diagnostic.Location.SourceTree;
var root = sourceTree.GetRoot(context.CancellationToken);
var methodDeclarationSyntax = context.GetSuppressibleNode <MethodDeclarationSyntax>(diagnostic);
if (methodDeclarationSyntax == null)
{
return;
}
var model = context.GetSemanticModel(diagnostic.Location.SourceTree);
if (!(model.GetDeclaredSymbol(methodDeclarationSyntax) is IMethodSymbol methodSymbol))
{
return;
}
var typeSymbol = methodSymbol.ContainingType;
if (!typeSymbol.Extends(typeof(UnityEngine.MonoBehaviour)))
{
return;
}
while (typeSymbol.ContainingType != null && typeSymbol.ContainingType.Extends(typeof(UnityEngine.MonoBehaviour)))
{
typeSymbol = typeSymbol.ContainingType;
}
var references = new List <InvocationExpressionSyntax>();
foreach (var typeNode in typeSymbol.Locations.Select(location => root.FindNode(location.SourceSpan)))
{
references.AddRange(typeNode.DescendantNodes()
.OfType <InvocationExpressionSyntax>()
.Where(e => MethodInvocationAnalyzer.InvocationMatches(e, out string argument) && argument == methodSymbol.Name));
}
if (references.Any())
{
context.ReportSuppression(Suppression.Create(Rule, diagnostic));
}
}
private void AnalyzeDiagnostic(Diagnostic diagnostic, SuppressionAnalysisContext context)
{
var location = diagnostic.Location;
var model = context.GetSemanticModel(location.SourceTree);
var symbols = new List <ISymbol>();
var node = context.GetSuppressibleNode <SyntaxNode>(diagnostic, n => n is MethodDeclarationSyntax || n is VariableDeclaratorSyntax || n is FieldDeclarationSyntax);
switch (node)
{
case MethodDeclarationSyntax method:
symbols.Add(model.GetDeclaredSymbol(method));
break;
case VariableDeclaratorSyntax vdec:
symbols.Add(model.GetDeclaredSymbol(vdec));
break;
case FieldDeclarationSyntax fdec:
symbols.AddRange(fdec.Declaration.Variables.Select(v => model.GetDeclaredSymbol(v)));
break;
}
var reportableSymbols = symbols
.Where(IsReportable)
.ToList();
if (!reportableSymbols.Any())
{
return;
}
if (reportableSymbols.FirstOrDefault() is IMethodSymbol)
{
context.ReportSuppression(Suppression.Create(ContextMenuRule, diagnostic));
}
else
{
foreach (var descriptor in SupportedSuppressions.Where(d => d.SuppressedDiagnosticId == diagnostic.Id))
{
context.ReportSuppression(Suppression.Create(descriptor, diagnostic));
}
}
}
private void AnalyzeDiagnostic(Diagnostic diagnostic, SuppressionAnalysisContext context)
{
var node = context.GetSuppressibleNode <SyntaxNode>(diagnostic, n => n is ParameterSyntax || n is MethodDeclarationSyntax);
if (node is ParameterSyntax)
{
node = node
.Ancestors()
.OfType <MethodDeclarationSyntax>()
.FirstOrDefault();
}
if (node == null)
{
return;
}
var model = context.GetSemanticModel(diagnostic.Location.SourceTree);
if (!(model.GetDeclaredSymbol(node) is IMethodSymbol methodSymbol))
{
return;
}
var scriptInfo = new ScriptInfo(methodSymbol.ContainingType);
if (!scriptInfo.IsMessage(methodSymbol))
{
return;
}
foreach (var suppression in SupportedSuppressions)
{
if (suppression.SuppressedDiagnosticId == diagnostic.Id)
{
context.ReportSuppression(Suppression.Create(suppression, diagnostic));
}
}
}