public static TNode ChangeAccessibility <TNode>(
TNode node,
Accessibility newAccessibility,
IModifierComparer comparer = null) where TNode : SyntaxNode
{
return(ChangeAccessibility(node, AccessibilityInfo.Create(node.GetModifiers()), newAccessibility, comparer));
}
internal static TNode ChangeAccessibility <TNode>(
TNode node,
AccessibilityInfo info,
Accessibility newAccessibility,
IModifierComparer comparer = null) where TNode : SyntaxNode
{
Accessibility accessibility = info.Accessibility;
if (accessibility == newAccessibility)
{
return(node);
}
comparer = comparer ?? ModifierComparer.Instance;
if (IsSingleTokenAccessibility(accessibility) &&
IsSingleTokenAccessibility(newAccessibility))
{
int insertIndex = comparer.GetInsertIndex(info.Modifiers, GetKind(newAccessibility));
if (info.Index == insertIndex ||
info.Index == insertIndex - 1)
{
SyntaxToken newToken = CreateToken(newAccessibility).WithTriviaFrom(info.Token);
SyntaxTokenList newModifiers = info.Modifiers.Replace(info.Token, newToken);
return(node.WithModifiers(newModifiers));
}
}
if (accessibility != Accessibility.NotApplicable)
{
node = ModifierHelper.RemoveModifierAt(node, Math.Max(info.Index, info.AdditionalIndex));
if (accessibility == Accessibility.ProtectedOrInternal)
{
node = ModifierHelper.RemoveModifierAt(node, Math.Min(info.Index, info.AdditionalIndex));
}
}
if (newAccessibility != Accessibility.NotApplicable)
{
node = (TNode)InsertModifier(node, newAccessibility, comparer);
}
return(node);
}