public static EventDeclarationSyntax AddStaticModifier(EventDeclarationSyntax eventDeclaration)
{
if (eventDeclaration == null)
{
throw new ArgumentNullException(nameof(eventDeclaration));
}
SyntaxTokenList modifiers = eventDeclaration.Modifiers;
if (!modifiers.Contains(SyntaxKind.StaticKeyword))
{
return(eventDeclaration.InsertModifier(SyntaxKind.StaticKeyword, ModifierComparer.Instance));
}
else
{
return(eventDeclaration);
}
}