84 lines
2.8 KiB
C#
84 lines
2.8 KiB
C#
// Copyright 2025 Code Philosophy
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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using System.Collections.Generic;
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using System.Text;
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namespace Obfuz.ObfusPasses.SymbolObfus.NameMakers
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{
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public abstract class NameScopeBase : INameScope
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{
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private readonly Dictionary<string, string> _nameMap = new Dictionary<string, string>();
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private readonly HashSet<string> _preservedNames = new HashSet<string>();
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public bool AddPreservedName(string name)
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{
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if (!string.IsNullOrEmpty(name))
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{
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return _preservedNames.Add(name);
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}
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return false;
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}
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public bool IsNamePreserved(string name)
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{
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return _preservedNames.Contains(name);
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}
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protected abstract void BuildNewName(StringBuilder nameBuilder, string originalName, string lastName);
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private string CreateNewName(string originalName)
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{
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var nameBuilder = new StringBuilder();
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string lastName = null;
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while (true)
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{
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nameBuilder.Clear();
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BuildNewName(nameBuilder, originalName, lastName);
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string newName = nameBuilder.ToString();
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lastName = newName;
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if (_preservedNames.Add(newName))
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{
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return newName;
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}
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}
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}
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public string GetNewName(string originalName, bool reuse)
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{
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if (!reuse)
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{
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return CreateNewName(originalName);
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}
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if (_nameMap.TryGetValue(originalName, out var newName))
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{
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return newName;
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}
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newName = CreateNewName(originalName);
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_nameMap[originalName] = newName;
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return newName;
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}
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}
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}
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