private void AnalyzeIntToLongSyntaxNode(SyntaxNodeAnalysisContext context)
{
var semanticModel = context.SemanticModel;
var node = context.Node;
var typeInfo = semanticModel.GetTypeInfo(node, cancellationToken: context.CancellationToken);
if (typeInfo.Type.SpecialType != SpecialType.System_Int32)
{
return;
}
Diagnostic diagnostic = node.Kind() switch
{
SyntaxKind.MultiplyExpression => DiagnosticDescriptors.AC0001_MultiplyOverflowInt32(context.Node),
SyntaxKind.LeftShiftExpression => DiagnosticDescriptors.AC0002_LeftShiftOverflowInt32(context.Node),
_ => throw new InvalidOperationException(),
};
for (; node is not null; node = GetParent(node))
{
if (semanticModel.GetTypeInfo(node, cancellationToken: context.CancellationToken)
.ConvertedType.SpecialType == SpecialType.System_Int64)
{
context.ReportDiagnostic(diagnostic);
return;
}
}