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