/// <summary>
/// Creates a new <see cref="ModifierListInfo"/> with accessibility modifiers updated.
/// </summary>
/// <param name="newAccessibility"></param>
/// <param name="comparer"></param>
/// <returns></returns>
public ModifierListInfo WithExplicitAccessibility(Accessibility newAccessibility, IComparer <SyntaxKind> comparer = null)
{
ThrowInvalidOperationIfNotInitialized();
Accessibility accessibility = ExplicitAccessibility;
if (accessibility == newAccessibility)
{
return(this);
}
comparer = comparer ?? ModifierKindComparer.Default;
SyntaxNode declaration = Parent;
if (accessibility.IsSingleTokenAccessibility() &&
newAccessibility.IsSingleTokenAccessibility())
{
int insertIndex = ModifierList.GetInsertIndex(Modifiers, GetTokenKind(), comparer);
int tokenIndex = GetFirstTokenIndex();
if (tokenIndex == insertIndex ||
tokenIndex == insertIndex - 1)
{
SyntaxToken token = Modifiers[tokenIndex];
SyntaxToken newToken = SyntaxFactory.Token(GetTokenKind()).WithTriviaFrom(token);
SyntaxTokenList newModifiers = Modifiers.Replace(token, newToken);
return(WithModifiers(newModifiers));
}
}
if (accessibility != Accessibility.NotApplicable)
{
(int tokenIndex, int secondTokenIndex) = GetTokenIndexes();
declaration = ModifierList.RemoveAt(declaration, Math.Max(tokenIndex, secondTokenIndex));
if (secondTokenIndex != -1)
{
declaration = ModifierList.RemoveAt(declaration, Math.Min(tokenIndex, secondTokenIndex));
}
}
if (newAccessibility != Accessibility.NotApplicable)
{
declaration = ModifierList.Insert(declaration, newAccessibility, comparer);
}
return(SyntaxInfo.ModifierListInfo(declaration));
SyntaxKind GetTokenKind()
{
switch (newAccessibility)
{
case Accessibility.Private:
return(SyntaxKind.PrivateKeyword);
case Accessibility.Protected:
return(SyntaxKind.ProtectedKeyword);
case Accessibility.Internal:
return(SyntaxKind.InternalKeyword);
case Accessibility.Public:
return(SyntaxKind.PublicKeyword);
case Accessibility.NotApplicable:
return(SyntaxKind.None);
default:
throw new ArgumentException("", nameof(newAccessibility));
}
}
}
