public static void ReplaceNullWithDefaultValue(
CodeFixContext context,
Diagnostic diagnostic,
ExpressionSyntax expression,
ITypeSymbol typeSymbol,
string additionalKey = null)
{
if (!typeSymbol.SupportsExplicitDeclaration())
{
return;
}
CodeAction codeAction = CodeActionFactory.ReplaceNullWithDefaultValue(context.Document, expression, typeSymbol, equivalenceKey: EquivalenceKey.Create(diagnostic, additionalKey));
context.RegisterCodeFix(codeAction, diagnostic);
}