public override SyntaxNode VisitConstructorDeclaration(ConstructorDeclarationSyntax node)
{
ConstructorDeclarationSyntax processedDeclaration = (ConstructorDeclarationSyntax)base.VisitConstructorDeclaration(node);
// Make the constructor declaration private if it has other access modifier
SyntaxTokenList modifiers = processedDeclaration.Modifiers;
// Static constructors are different story
if (modifiers.Any(SyntaxKind.StaticKeyword))
{
return(processedDeclaration);
}
// If it is already declared as private, do nothing
if (!modifiers.Any(SyntaxKind.PrivateKeyword))
{
if (modifiers.Any(SyntaxKind.PublicKeyword) || modifiers.Any(SyntaxKind.ProtectedKeyword))
{
// If there is already access modified, replace it with `private' keyword.
// Considers:
// public A() {} -> private A() {}
// protected A() {} -> private A() {}
SyntaxToken accessKeyword = processedDeclaration.GetFirstToken(t => t.Kind == SyntaxKind.PublicKeyword || t.Kind == SyntaxKind.ProtectedKeyword);
// Copy leading and trailing trivia
SyntaxToken privateKeyword = Syntax.Token(SyntaxKind.PrivateKeyword)
.WithLeadingTrivia(accessKeyword.LeadingTrivia)
.WithTrailingTrivia(accessKeyword.TrailingTrivia);
// Replace the access modifier
ConstructorDeclarationSyntax newDeclaration = processedDeclaration.ReplaceToken(accessKeyword, privateKeyword);
return(newDeclaration);
}
else
{
// Otherwise, insert `private' at the beginning.
// Considers:
// A() {} -> private A() {}
// Copy trivia from first token
SyntaxToken firstToken = processedDeclaration.GetFirstToken();
// Copy leading and trailing trivia
SyntaxToken privateKeyword = Syntax.Token(SyntaxKind.PrivateKeyword)
.WithLeadingTrivia(firstToken.LeadingTrivia)
.WithTrailingTrivia(firstToken.TrailingTrivia);
// Remove the leading trivia from first token
ConstructorDeclarationSyntax newDeclaration = processedDeclaration.ReplaceToken(firstToken, firstToken.WithLeadingTrivia(Syntax.Whitespace(" ")));
// Insert the access modifier
newDeclaration = newDeclaration
.WithModifiers(newDeclaration.Modifiers.Insert(0, privateKeyword));
return(newDeclaration);
}
}
return(processedDeclaration);
}