47 lines
1.6 KiB
C#
47 lines
1.6 KiB
C#
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using dnlib.DotNet;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace HybridCLR.Editor.AOT
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{
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public class AOTAssemblyMetadataStripper
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{
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public static byte[] Strip(byte[] assemblyBytes)
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{
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var mod = ModuleDefMD.Load(assemblyBytes);
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foreach (var type in mod.GetTypes())
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{
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if (type.HasGenericParameters)
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{
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continue;
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}
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foreach (var method in type.Methods)
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{
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if (!method.HasBody || method.HasGenericParameters)
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{
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continue;
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}
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method.Body = null;
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}
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}
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var writer = new System.IO.MemoryStream();
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mod.Write(writer);
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writer.Flush();
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return writer.ToArray();
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}
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public static void Strip(string originalAssemblyPath, string strippedAssemblyPath)
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{
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byte[] originDllBytes = System.IO.File.ReadAllBytes(originalAssemblyPath);
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byte[] strippedDllBytes = Strip(originDllBytes);
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UnityEngine.Debug.Log($"aot dll:{originalAssemblyPath}, length: {originDllBytes.Length} -> {strippedDllBytes.Length}, stripping rate:{(originDllBytes.Length - strippedDllBytes.Length)/(double)originDllBytes.Length} ");
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Directory.CreateDirectory(System.IO.Path.GetDirectoryName(strippedAssemblyPath));
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System.IO.File.WriteAllBytes(strippedAssemblyPath, strippedDllBytes);
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}
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}
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}
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