protected sealed override void Initialize(SonarAnalysisContext context)
{
context.RegisterSyntaxNodeActionInNonGenerated(
c =>
{
var invocation = (InvocationExpressionSyntax)c.Node;
var calledMethod = c.SemanticModel.GetSymbolInfo(invocation).Symbol as IMethodSymbol;
if (calledMethod == null)
{
return;
}
var memberAccess = invocation.Expression as MemberAccessExpressionSyntax;
if (memberAccess == null)
{
return;
}
if (calledMethod.IsInType(KnownType.System_String) &&
CommonCultureSpecificMethodNames.Contains(calledMethod.Name) &&
!calledMethod.Parameters
.Any(param => param.Type.IsAny(StringCultureSpecifierNames)))
{
c.ReportDiagnostic(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageDefineLocale));
return;
}
if (calledMethod.IsInType(KnownType.System_String) &&
IndexLookupMethodNames.Contains(calledMethod.Name) &&
calledMethod.Parameters.Any(param => param.Type.SpecialType == SpecialType.System_String) &&
!calledMethod.Parameters.Any(param => param.Type.IsAny(StringCultureSpecifierNames)))
{
c.ReportDiagnostic(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageDefineLocale));
return;
}
if (IsMethodOnNonIntegralOrDateTime(calledMethod) &&
calledMethod.Name == ToStringMethodName &&
!calledMethod.Parameters.Any())
{
c.ReportDiagnostic(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageDefineLocale));
return;
}
if (calledMethod.IsInType(KnownType.System_String) &&
calledMethod.Name == CompareToMethodName)
{
c.ReportDiagnostic(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageChangeCompareTo));
return;
}
},
SyntaxKind.InvocationExpression);
}
private static void ReportOnViolation(SyntaxNodeAnalysisContext context)
{
var invocation = (InvocationExpressionSyntax)context.Node;
if (!(invocation.Expression is MemberAccessExpressionSyntax memberAccess))
{
return;
}
if (!(context.SemanticModel.GetSymbolInfo(invocation).Symbol is IMethodSymbol calledMethod))
{
return;
}
if (invocation.IsInExpressionTree(context.SemanticModel))
{
return; // We cannot specify the culture in an expression tree
}
if (calledMethod.IsInType(KnownType.System_String) &&
CommonCultureSpecificMethodNames.Contains(calledMethod.Name) &&
!calledMethod.Parameters.Any(param => param.Type.IsAny(StringCultureSpecifierNames)))
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageDefineLocale));
return;
}
if (calledMethod.IsInType(KnownType.System_String) &&
IndexLookupMethodNames.Contains(calledMethod.Name) &&
calledMethod.Parameters.Any(param => param.Type.SpecialType == SpecialType.System_String) &&
!calledMethod.Parameters.Any(param => param.Type.IsAny(StringCultureSpecifierNames)))
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageDefineLocale));
return;
}
if (IsMethodOnNonIntegralOrDateTime(calledMethod) &&
calledMethod.Name == ToStringMethodName &&
calledMethod.Parameters.Length == 0)
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageDefineLocale));
return;
}
if (calledMethod.IsInType(KnownType.System_String) &&
calledMethod.Name == CompareToMethodName)
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, memberAccess.Name.GetLocation(), MessageChangeCompareTo));
}
}