/*
Copyright (C) 2011-2014 de4dot@gmail.com
This file is part of de4dot.
de4dot is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
de4dot is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with de4dot. If not, see .
*/
using System;
using System.Collections.Generic;
using dnlib.DotNet;
namespace de4dot.code.renamer {
class ExistingNames {
Dictionary allNames = new Dictionary(StringComparer.Ordinal);
public void Add(string name) {
allNames[name] = true;
}
public bool Exists(string name) {
return allNames.ContainsKey(name);
}
public string GetName(UTF8String oldName, INameCreator nameCreator) {
return GetName(UTF8String.ToSystemStringOrEmpty(oldName), nameCreator);
}
public string GetName(string oldName, INameCreator nameCreator) {
return GetName(oldName, () => nameCreator.Create());
}
public string GetName(UTF8String oldName, Func createNewName) {
return GetName(UTF8String.ToSystemStringOrEmpty(oldName), createNewName);
}
public string GetName(string oldName, Func createNewName) {
string prevName = null;
while (true) {
var name = createNewName();
if (name == prevName)
throw new ApplicationException(string.Format("Could not rename symbol to {0}", Utils.ToCsharpString(name)));
if (!Exists(name) || name == oldName) {
allNames[name] = true;
return name;
}
prevName = name;
}
}
public void Merge(ExistingNames other) {
if (this == other)
return;
foreach (var key in other.allNames.Keys)
allNames[key] = true;
}
}
}