private static string SafeParameterName(IParameterSymbol parameter, IdentifierNameSyntax context)
{
if (context.TryFirstAncestor <MemberDeclarationSyntax>(out var ancestor))
{
using (var walker = IdentifierTokenWalker.Borrow(ancestor))
{
var name = parameter.Name;
while (walker.TryFind(name, out _))
{
name += "_";
}
return(name);
}
}
return(parameter.Name);
}
public static void Test()
{
var syntaxTree = CSharpSyntaxTree.ParseText(@"
namespace N
{
public class C
{
public C()
{
var i = 1;
}
}
}");
var node = syntaxTree.FindTypeDeclaration("C");
using var walker = IdentifierTokenWalker.Borrow(node);
CollectionAssert.AreEqual(new[] { "C", "C", "var", "i" }, walker.IdentifierTokens.Select(x => x.ValueText));
Assert.AreEqual(true, walker.TryFind("i", out var match));
Assert.AreEqual("i", match.ValueText);
Assert.AreEqual(false, walker.TryFind("missing", out _));
}