612 lines
24 KiB
C#
612 lines
24 KiB
C#
using dnlib.DotNet;
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using HybridCLR.Editor.ABI;
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using HybridCLR.Editor.Meta;
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using HybridCLR.Editor.Template;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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using UnityEditor;
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using UnityEngine;
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using TypeInfo = HybridCLR.Editor.ABI.TypeInfo;
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namespace HybridCLR.Editor.MethodBridge
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{
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public class Generator
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{
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public class Options
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{
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public string TemplateCode { get; set; }
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public string OutputFile { get; set; }
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public IReadOnlyCollection<GenericMethod> GenericMethods { get; set; }
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}
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private readonly List<GenericMethod> _genericMethods;
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private readonly string _templateCode;
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private readonly string _outputFile;
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private readonly TypeCreator _typeCreator;
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private readonly HashSet<MethodDesc> _managed2nativeMethodSet = new HashSet<MethodDesc>();
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private readonly HashSet<MethodDesc> _native2managedMethodSet = new HashSet<MethodDesc>();
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private readonly HashSet<MethodDesc> _adjustThunkMethodSet = new HashSet<MethodDesc>();
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public Generator(Options options)
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{
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List<(GenericMethod, string)> genericMethodInfo = options.GenericMethods.Select(m => (m, m.ToString())).ToList();
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genericMethodInfo.Sort((a, b) => string.CompareOrdinal(a.Item2, b.Item2));
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_genericMethods = genericMethodInfo.Select(m => m.Item1).ToList();
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_templateCode = options.TemplateCode;
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_outputFile = options.OutputFile;
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_typeCreator = new TypeCreator();
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}
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private MethodDesc CreateMethodDesc(MethodDef methodDef, bool forceRemoveThis, TypeSig returnType, List<TypeSig> parameters)
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{
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var paramInfos = new List<ParamInfo>();
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if (forceRemoveThis && !methodDef.IsStatic)
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{
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parameters.RemoveAt(0);
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}
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if (returnType.ContainsGenericParameter)
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{
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throw new Exception($"[PreservedMethod] method:{methodDef} has generic parameters");
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}
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foreach (var paramInfo in parameters)
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{
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if (paramInfo.ContainsGenericParameter)
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{
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throw new Exception($"[PreservedMethod] method:{methodDef} has generic parameters");
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}
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paramInfos.Add(new ParamInfo() { Type = _typeCreator.CreateTypeInfo(paramInfo) });
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}
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var mbs = new MethodDesc()
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{
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MethodDef = methodDef,
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ReturnInfo = new ReturnInfo() { Type = returnType != null ? _typeCreator.CreateTypeInfo(returnType) : TypeInfo.s_void },
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ParamInfos = paramInfos,
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};
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return mbs;
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}
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private void AddManaged2NativeMethod(MethodDesc method)
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{
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method.Init();
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_managed2nativeMethodSet.Add(method);
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}
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private void AddNative2ManagedMethod(MethodDesc method)
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{
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method.Init();
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_native2managedMethodSet.Add(method);
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}
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private void AddAdjustThunkMethod(MethodDesc method)
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{
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method.Init();
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_adjustThunkMethodSet.Add(method);
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}
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private void ProcessMethod(MethodDef method, List<TypeSig> klassInst, List<TypeSig> methodInst)
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{
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if (method.IsPrivate || (method.IsAssembly && !method.IsPublic && !method.IsFamily))
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{
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if (klassInst == null && methodInst == null)
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{
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return;
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}
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else
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{
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//Debug.Log($"[PreservedMethod] method:{method}");
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}
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}
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ICorLibTypes corLibTypes = method.Module.CorLibTypes;
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TypeSig returnType;
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List<TypeSig> parameters;
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if (klassInst == null && methodInst == null)
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{
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if (method.HasGenericParameters)
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{
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throw new Exception($"[PreservedMethod] method:{method} has generic parameters");
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}
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returnType = MetaUtil.ToShareTypeSig(corLibTypes, method.ReturnType);
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parameters = method.Parameters.Select(p => MetaUtil.ToShareTypeSig(corLibTypes, p.Type)).ToList();
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}
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else
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{
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var gc = new GenericArgumentContext(klassInst, methodInst);
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returnType = MetaUtil.ToShareTypeSig(corLibTypes, MetaUtil.Inflate(method.ReturnType, gc));
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parameters = method.Parameters.Select(p => MetaUtil.ToShareTypeSig(corLibTypes, MetaUtil.Inflate(p.Type, gc))).ToList();
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}
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var m2nMethod = CreateMethodDesc(method, false, returnType, parameters);
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AddManaged2NativeMethod(m2nMethod);
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if (method.IsVirtual)
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{
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if (method.DeclaringType.IsInterface)
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{
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AddAdjustThunkMethod(m2nMethod);
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}
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//var adjustThunkMethod = CreateMethodDesc(method, true, returnType, parameters);
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AddNative2ManagedMethod(m2nMethod);
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}
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if (method.Name == "Invoke" && method.DeclaringType.IsDelegate)
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{
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var openMethod = CreateMethodDesc(method, true, returnType, parameters);
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AddNative2ManagedMethod(openMethod);
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}
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}
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public void PrepareMethods()
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{
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foreach(var method in _genericMethods)
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{
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ProcessMethod(method.Method, method.KlassInst, method.MethodInst);
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}
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}
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public void Generate()
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{
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var frr = new FileRegionReplace(_templateCode);
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List<string> lines = new List<string>(20_0000);
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List<MethodDesc> managed2NativeMethodList = _managed2nativeMethodSet.ToList();
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managed2NativeMethodList.Sort((a, b) => string.CompareOrdinal(a.Sig, b.Sig));
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List<MethodDesc> native2ManagedMethodList = _native2managedMethodSet.ToList();
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native2ManagedMethodList.Sort((a, b) => string.CompareOrdinal(a.Sig, b.Sig));
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List<MethodDesc> adjustThunkMethodList = _adjustThunkMethodSet.ToList();
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adjustThunkMethodList.Sort((a, b) => string.CompareOrdinal(a.Sig, b.Sig));
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Debug.LogFormat("== managed2native:{0} native2managed:{1} adjustThunk:{2}",
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managed2NativeMethodList.Count, native2ManagedMethodList.Count, adjustThunkMethodList.Count);
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var structTypeSet = new HashSet<TypeInfo>();
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CollectStructDefs(managed2NativeMethodList, structTypeSet);
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CollectStructDefs(native2ManagedMethodList, structTypeSet);
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CollectStructDefs(adjustThunkMethodList, structTypeSet);
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List<TypeInfo> structTypes = structTypeSet.ToList();
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structTypes.Sort((a, b) => a.TypeId - b.TypeId);
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var classInfos = new List<ClassInfo>();
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var classTypeSet = new HashSet<TypeInfo>();
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foreach (var type in structTypes)
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{
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GenerateClassInfo(type, classTypeSet, classInfos);
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}
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GenerateStructDefines(classInfos, lines);
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GenerateStructureSignatureStub(structTypes, lines);
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foreach(var method in managed2NativeMethodList)
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{
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GenerateManaged2NativeMethod(method, lines);
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}
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GenerateManaged2NativeStub(managed2NativeMethodList, lines);
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foreach (var method in native2ManagedMethodList)
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{
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GenerateNative2ManagedMethod(method, lines);
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}
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GenerateNative2ManagedStub(native2ManagedMethodList, lines);
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foreach (var method in adjustThunkMethodList)
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{
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GenerateAdjustThunkMethod(method, lines);
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}
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GenerateAdjustThunkStub(adjustThunkMethodList, lines);
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frr.Replace("CODE", string.Join("\n", lines));
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Directory.CreateDirectory(Path.GetDirectoryName(_outputFile));
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frr.Commit(_outputFile);
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}
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private void CollectStructDefs(List<MethodDesc> methods, HashSet<TypeInfo> structTypes)
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{
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foreach (var method in methods)
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{
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foreach(var paramInfo in method.ParamInfos)
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{
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if (paramInfo.Type.IsStruct)
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{
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structTypes.Add(paramInfo.Type);
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if (paramInfo.Type.Klass.ContainsGenericParameter)
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{
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throw new Exception($"[CollectStructDefs] method:{method.MethodDef} type:{paramInfo.Type.Klass} contains generic parameter");
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}
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}
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}
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if (method.ReturnInfo.Type.IsStruct)
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{
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structTypes.Add(method.ReturnInfo.Type);
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if (method.ReturnInfo.Type.Klass.ContainsGenericParameter)
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{
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throw new Exception($"[CollectStructDefs] method:{method.MethodDef} type:{method.ReturnInfo.Type.Klass} contains generic parameter");
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}
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}
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}
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}
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class FieldInfo
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{
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public FieldDef field;
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public TypeInfo type;
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}
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class ClassInfo
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{
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public TypeInfo type;
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public TypeDef typeDef;
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public List<FieldInfo> fields = new List<FieldInfo>();
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public ClassLayout layout;
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}
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private void GenerateClassInfo(TypeInfo type, HashSet<TypeInfo> typeSet, List<ClassInfo> classInfos)
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{
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if (!typeSet.Add(type))
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{
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return;
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}
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TypeSig typeSig = type.Klass;
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var fields = new List<FieldInfo>();
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TypeDef typeDef = typeSig.ToTypeDefOrRef().ResolveTypeDefThrow();
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List<TypeSig> klassInst = typeSig.ToGenericInstSig()?.GenericArguments?.ToList();
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GenericArgumentContext ctx = klassInst != null ? new GenericArgumentContext(klassInst, null) : null;
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ClassLayout sa = typeDef.ClassLayout;
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ICorLibTypes corLibTypes = typeDef.Module.CorLibTypes;
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foreach (FieldDef field in typeDef.Fields)
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{
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if (field.IsStatic)
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{
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continue;
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}
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TypeSig fieldType = ctx != null ? MetaUtil.Inflate(field.FieldType, ctx) : field.FieldType;
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fieldType = MetaUtil.ToShareTypeSig(corLibTypes, fieldType);
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var fieldTypeInfo = _typeCreator.CreateTypeInfo(fieldType);
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if (fieldTypeInfo.IsStruct)
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{
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GenerateClassInfo(fieldTypeInfo, typeSet, classInfos);
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}
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fields.Add(new FieldInfo { field = field, type = fieldTypeInfo });
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}
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classInfos.Add(new ClassInfo() { type = type, typeDef = typeDef, fields = fields, layout = sa });
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}
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private void GenerateStructDefines(List<ClassInfo> classInfos, List<string> lines)
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{
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foreach (var ci in classInfos)
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{
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lines.Add($"// {ci.type.Klass}");
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uint packingSize = ci.layout?.PackingSize ?? 0;
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if (packingSize != 0)
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{
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lines.Add($"#pragma pack(push, {packingSize})");
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}
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uint classSize = ci.layout?.ClassSize ?? 0;
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if (ci.typeDef.IsExplicitLayout)
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{
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lines.Add($"union {ci.type.GetTypeName()} {{");
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if (classSize > 0)
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{
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lines.Add($"\tstruct {{ char __fieldSize_offsetPadding[{classSize}];}};");
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}
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int index = 0;
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foreach (var field in ci.fields)
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{
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uint offset = field.field.FieldOffset.Value;
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string fieldName = $"__{field.field.Name.Replace('<', '_').Replace('>', '_')}_{index}";
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lines.Add("\t#pragma pack(push, 1)");
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lines.Add($"\tstruct {{ {(offset > 0 ? $"char {fieldName}_offsetPadding[{offset}];" : "")} {field.type.GetTypeName()} {fieldName};}};");
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lines.Add($"\t#pragma pack(pop)");
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lines.Add($"\tstruct {{ {field.type.GetTypeName()} {fieldName}_forAlignmentOnly;}};");
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++index;
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}
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}
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else
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{
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lines.Add($"{(classSize > 0 ? "union" : "struct")} {ci.type.GetTypeName()} {{");
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if (classSize > 0)
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{
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lines.Add($"\tstruct {{ char __fieldSize_offsetPadding[{classSize}];}};");
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lines.Add("\tstruct {");
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}
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int index = 0;
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foreach (var field in ci.fields)
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{
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string fieldName = $"__{field.field.Name.Replace('<', '_').Replace('>', '_')}_{index}";
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lines.Add($"\t{field.type.GetTypeName()} {fieldName};");
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++index;
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}
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if (classSize > 0)
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{
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lines.Add("\t};");
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}
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}
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lines.Add("};");
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if (packingSize != 0)
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{
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lines.Add($"#pragma pack(pop)");
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}
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}
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}
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public static string ToFullName(TypeSig type)
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{
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type = type.RemovePinnedAndModifiers();
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switch (type.ElementType)
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{
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case ElementType.Void: return "v";
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case ElementType.Boolean: return "u1";
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case ElementType.I1: return "i1";
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case ElementType.U1: return "u1";
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case ElementType.I2: return "i2";
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case ElementType.Char:
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case ElementType.U2: return "i2";
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case ElementType.I4: return "i4";
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case ElementType.U4: return "u4";
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case ElementType.I8: return "i8";
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case ElementType.U8: return "u8";
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case ElementType.R4: return "r4";
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case ElementType.R8: return "r8";
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case ElementType.U: return "u";
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case ElementType.I:
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case ElementType.String:
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case ElementType.Ptr:
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case ElementType.ByRef:
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case ElementType.Class:
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case ElementType.Array:
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case ElementType.SZArray:
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case ElementType.FnPtr:
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case ElementType.Object:
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return "i";
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case ElementType.Module:
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case ElementType.Var:
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case ElementType.MVar:
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throw new NotSupportedException($"ToFullName type:{type}");
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case ElementType.TypedByRef: return TypeInfo.strTypedByRef;
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case ElementType.ValueType:
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{
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TypeDef typeDef = type.ToTypeDefOrRef().ResolveTypeDef();
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if (typeDef == null)
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{
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throw new Exception($"type:{type} 未能找到定义。请尝试 `HybridCLR/Genergate/LinkXml`，然后Build一次生成AOT dll，再重新生成桥接函数");
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}
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if (typeDef.IsEnum)
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{
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return ToFullName(typeDef.GetEnumUnderlyingType());
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}
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return ToValueTypeFullName((ClassOrValueTypeSig)type);
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}
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case ElementType.GenericInst:
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{
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GenericInstSig gis = (GenericInstSig)type;
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if (!gis.GenericType.IsValueType)
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{
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return "i";
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}
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TypeDef typeDef = gis.GenericType.ToTypeDefOrRef().ResolveTypeDef();
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if (typeDef.IsEnum)
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{
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return ToFullName(typeDef.GetEnumUnderlyingType());
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}
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return $"{ToValueTypeFullName(gis.GenericType)}<{string.Join(",", gis.GenericArguments.Select(a => ToFullName(a)))}>";
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}
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default: throw new NotSupportedException($"{type.ElementType}");
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}
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}
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private static bool IsSystemOrUnityAssembly(ModuleDef module)
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{
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if (module.IsCoreLibraryModule == true)
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{
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return true;
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}
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string assName = module.Assembly.Name.String;
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return assName.StartsWith("System.") || assName.StartsWith("UnityEngine.");
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}
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private static string ToValueTypeFullName(ClassOrValueTypeSig type)
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{
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TypeDef typeDef = type.ToTypeDefOrRef().ResolveTypeDef();
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if (typeDef == null)
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{
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throw new Exception($"type:{type} resolve fail");
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}
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if (typeDef.DeclaringType != null)
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{
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return $"{ToValueTypeFullName((ClassOrValueTypeSig)typeDef.DeclaringType.ToTypeSig())}/{typeDef.Name}";
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}
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if (IsSystemOrUnityAssembly(typeDef.Module))
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{
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return type.FullName;
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}
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return $"{Path.GetFileNameWithoutExtension(typeDef.Module.Name)}:{typeDef.FullName}";
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}
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public void GenerateStructureSignatureStub(List<TypeInfo> types, List<string> lines)
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{
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lines.Add("FullName2Signature hybridclr::interpreter::g_fullName2SignatureStub[] = {");
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foreach (var type in types)
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{
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lines.Add($"\t{{\"{ToFullName(type.Klass)}\", \"{type.CreateSigName()}\"}},");
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}
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lines.Add("\t{ nullptr, nullptr},");
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lines.Add("};");
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}
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public void GenerateManaged2NativeStub(List<MethodDesc> methods, List<string> lines)
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{
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lines.Add($@"
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Managed2NativeMethodInfo hybridclr::interpreter::g_managed2nativeStub[] =
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{{
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");
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foreach (var method in methods)
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{
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lines.Add($"\t{{\"{method.CreateInvokeSigName()}\", __M2N_{method.CreateInvokeSigName()}}},");
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}
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lines.Add($"\t{{nullptr, nullptr}},");
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lines.Add("};");
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}
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public void GenerateNative2ManagedStub(List<MethodDesc> methods, List<string> lines)
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{
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lines.Add($@"
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Native2ManagedMethodInfo hybridclr::interpreter::g_native2managedStub[] =
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{{
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");
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foreach (var method in methods)
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{
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lines.Add($"\t{{\"{method.CreateInvokeSigName()}\", (Il2CppMethodPointer)__N2M_{method.CreateInvokeSigName()}}},");
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}
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lines.Add($"\t{{nullptr, nullptr}},");
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lines.Add("};");
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}
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public void GenerateAdjustThunkStub(List<MethodDesc> methods, List<string> lines)
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{
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lines.Add($@"
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NativeAdjustThunkMethodInfo hybridclr::interpreter::g_adjustThunkStub[] =
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{{
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");
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foreach (var method in methods)
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{
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lines.Add($"\t{{\"{method.CreateInvokeSigName()}\", (Il2CppMethodPointer)__N2M_AdjustorThunk_{method.CreateCallSigName()}}},");
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}
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lines.Add($"\t{{nullptr, nullptr}},");
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lines.Add("};");
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}
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private string GetManaged2NativePassParam(TypeInfo type, string varName)
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{
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return $"M2NFromValueOrAddress<{type.GetTypeName()}>({varName})";
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}
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private string GetNative2ManagedPassParam(TypeInfo type, string varName)
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{
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return type.NeedExpandValue() ? $"(uint64_t)({varName})" : $"N2MAsUint64ValueOrAddress<{type.GetTypeName()}>({varName})";
|
||
}
|
||
|
||
public void GenerateManaged2NativeMethod(MethodDesc method, List<string> lines)
|
||
{
|
||
string paramListStr = string.Join(", ", method.ParamInfos.Select(p => $"{p.Type.GetTypeName()} __arg{p.Index}").Concat(new string[] { "const MethodInfo* method" }));
|
||
string paramNameListStr = string.Join(", ", method.ParamInfos.Select(p => GetManaged2NativePassParam(p.Type, $"localVarBase+argVarIndexs[{p.Index}]")).Concat(new string[] { "method" }));
|
||
|
||
lines.Add($@"
|
||
static void __M2N_{method.CreateCallSigName()}(const MethodInfo* method, uint16_t* argVarIndexs, StackObject* localVarBase, void* ret)
|
||
{{
|
||
typedef {method.ReturnInfo.Type.GetTypeName()} (*NativeMethod)({paramListStr});
|
||
{(!method.ReturnInfo.IsVoid ? $"*({method.ReturnInfo.Type.GetTypeName()}*)ret = " : "")}((NativeMethod)(method->methodPointerCallByInterp))({paramNameListStr});
|
||
}}
|
||
");
|
||
}
|
||
|
||
public string GenerateArgumentSizeAndOffset(List<ParamInfo> paramInfos)
|
||
{
|
||
StringBuilder s = new StringBuilder();
|
||
int index = 0;
|
||
foreach (var param in paramInfos)
|
||
{
|
||
s.AppendLine($"\tconstexpr int __ARG_OFFSET_{index}__ = {(index > 0 ? $"__ARG_OFFSET_{index - 1}__ + __ARG_SIZE_{index-1}__" : "0")};");
|
||
s.AppendLine($"\tconstexpr int __ARG_SIZE_{index}__ = (sizeof(__arg{index}) + 7)/8;");
|
||
index++;
|
||
}
|
||
s.AppendLine($"\tconstexpr int __TOTAL_ARG_SIZE__ = {(paramInfos.Count > 0 ? $"__ARG_OFFSET_{index-1}__ + __ARG_SIZE_{index-1}__" : "1")};");
|
||
return s.ToString();
|
||
}
|
||
|
||
public string GenerateCopyArgumentToInterpreterStack(List<ParamInfo> paramInfos, bool adjustorThunk)
|
||
{
|
||
StringBuilder s = new StringBuilder();
|
||
int index = 0;
|
||
foreach (var param in paramInfos)
|
||
{
|
||
if (param.Type.IsPrimitiveType)
|
||
{
|
||
if (param.Type.NeedExpandValue())
|
||
{
|
||
s.AppendLine($"\targs[__ARG_OFFSET_{index}__].u64 = {(index == 0 && adjustorThunk ? $"(uint64_t)((uintptr_t)__arg{index} + sizeof(Il2CppObject))" : $"__arg{index}")};");
|
||
}
|
||
else
|
||
{
|
||
s.AppendLine($"\t*({param.Type.GetTypeName()}*)(args + __ARG_OFFSET_{index}__) = {(index == 0 && adjustorThunk ? $"(uintptr_t)__arg{index} + sizeof(Il2CppObject)" : $"__arg{index}")};");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
s.AppendLine($"\t*({param.Type.GetTypeName()}*)(args + __ARG_OFFSET_{index}__) = __arg{index};");
|
||
}
|
||
index++;
|
||
}
|
||
return s.ToString();
|
||
}
|
||
|
||
public void GenerateNative2ManagedMethod(MethodDesc method, List<string> lines)
|
||
{
|
||
string paramListStr = string.Join(", ", method.ParamInfos.Select(p => $"{p.Type.GetTypeName()} __arg{p.Index}").Concat(new string[] { "const MethodInfo* method" }));
|
||
lines.Add($@"
|
||
static {method.ReturnInfo.Type.GetTypeName()} __N2M_{method.CreateCallSigName()}({paramListStr})
|
||
{{
|
||
{GenerateArgumentSizeAndOffset(method.ParamInfos)}
|
||
StackObject args[__TOTAL_ARG_SIZE__];
|
||
{GenerateCopyArgumentToInterpreterStack(method.ParamInfos, false)}
|
||
{(method.ReturnInfo.IsVoid ? "Interpreter::Execute(method, args, nullptr);" : $"{method.ReturnInfo.Type.GetTypeName()} ret; Interpreter::Execute(method, args, &ret); return ret;")}
|
||
}}
|
||
");
|
||
}
|
||
|
||
public void GenerateAdjustThunkMethod(MethodDesc method, List<string> lines)
|
||
{
|
||
string paramListStr = string.Join(", ", method.ParamInfos.Select(p => $"{p.Type.GetTypeName()} __arg{p.Index}").Concat(new string[] { "const MethodInfo* method" }));
|
||
|
||
lines.Add($@"
|
||
static {method.ReturnInfo.Type.GetTypeName()} __N2M_AdjustorThunk_{method.CreateCallSigName()}({paramListStr})
|
||
{{
|
||
{GenerateArgumentSizeAndOffset(method.ParamInfos)}
|
||
StackObject args[__TOTAL_ARG_SIZE__];
|
||
{GenerateCopyArgumentToInterpreterStack(method.ParamInfos, true)}
|
||
{(method.ReturnInfo.IsVoid ? "Interpreter::Execute(method, args, nullptr);" : $"{method.ReturnInfo.Type.GetTypeName()} ret; Interpreter::Execute(method, args, &ret); return ret;")}
|
||
}}
|
||
");
|
||
}
|
||
}
|
||
}
|