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https://github.com/sinai-dev/UnityExplorer.git
synced 2025-06-15 22:07:48 +08:00
Handle il2cpp primitives (not boxed)
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Sinai
parent
56875e0641
commit
2977fd4df5
@ -124,11 +124,6 @@ namespace UnityExplorer
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if (obj == null)
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return null;
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return DoGetActualType(obj);
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}
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internal Type DoGetActualType(object obj)
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{
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var type = obj.GetType();
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try
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@ -136,6 +131,9 @@ namespace UnityExplorer
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if (IsString(obj))
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return typeof(string);
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if (IsIl2CppPrimitive(type))
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return il2cppPrimitivesToMono[type.FullName];
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if (obj is Il2CppSystem.Object cppObject)
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{
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var cppType = cppObject.GetIl2CppType();
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@ -150,12 +148,15 @@ namespace UnityExplorer
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return GetTypeByName(cppType.FullName) ?? type;
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}
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if (AllTypes.TryGetValue(cppType.FullName, out Type primitive) && primitive.IsPrimitive)
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return primitive;
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return GetUnhollowedType(cppType) ?? type;
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}
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}
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catch //(Exception ex)
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catch (Exception ex)
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{
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//ExplorerCore.LogWarning("Exception in GetActualType: " + ex);
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ExplorerCore.LogWarning("Exception in IL2CPP GetActualType: " + ex);
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}
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return type;
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@ -175,10 +176,8 @@ namespace UnityExplorer
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return monoType;
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}
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#endregion
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#region Casting
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private static readonly Dictionary<string, IntPtr> cppClassPointers = new Dictionary<string, IntPtr>();
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@ -190,33 +189,48 @@ namespace UnityExplorer
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var type = obj.GetType();
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// If casting from ValueType or string to Il2CppSystem.Object...
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if (typeof(Il2CppSystem.Object).IsAssignableFrom(castTo))
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// from structs
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if (type.IsValueType)
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{
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if (type.IsValueType)
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return BoxIl2CppObject(obj);
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if (obj is string)
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// from il2cpp primitive to system primitive
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if (IsIl2CppPrimitive(type) && castTo.IsPrimitive)
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{
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BoxStringToType(ref obj, castTo);
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return obj;
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return MakeMonoPrimitive(obj);
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}
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// from system primitive to il2cpp primitive
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else if (IsIl2CppPrimitive(castTo))
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{
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return MakeIl2CppPrimitive(castTo, obj);
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}
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// from other structs to il2cpp object
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else if (typeof(Il2CppSystem.Object).IsAssignableFrom(castTo))
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{
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return BoxIl2CppObject(obj);
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}
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else
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return obj;
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}
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// from string to il2cpp.Object / il2cpp.String
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if (obj is string && typeof(Il2CppSystem.Object).IsAssignableFrom(castTo))
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{
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return BoxStringToType(obj, castTo);
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}
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// from il2cpp objects...
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if (!(obj is Il2CppSystem.Object cppObj))
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return obj;
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// If going from Il2CppSystem.Object to a ValueType or string...
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// from Il2CppSystem.Object to a struct
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if (castTo.IsValueType)
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{
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if (castTo.FullName.StartsWith("Il2CppSystem."))
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AllTypes.TryGetValue(cppObj.GetIl2CppType().FullName, out castTo);
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return Unbox(cppObj, castTo);
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}
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return UnboxCppObject(cppObj, castTo);
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// or to system string
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else if (castTo == typeof(string))
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return UnboxString(obj);
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// Casting from il2cpp object to il2cpp object...
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if (!Il2CppTypeNotNull(castTo, out IntPtr castToPtr))
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return obj;
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@ -248,29 +262,30 @@ namespace UnityExplorer
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// cached il2cpp unbox methods
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internal static readonly Dictionary<string, MethodInfo> unboxMethods = new Dictionary<string, MethodInfo>();
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public object Unbox(object obj, Type type)
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// Unbox an il2cpp object to a struct or System primitive.
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public object UnboxCppObject(Il2CppSystem.Object cppObj, Type toType)
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{
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if (!type.IsValueType)
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if (!toType.IsValueType)
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return null;
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if (!(obj is Il2CppSystem.Object cppObj))
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return obj;
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try
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{
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if (type.IsEnum)
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return Enum.ToObject(type, Il2CppSystem.Enum.ToUInt64(cppObj));
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var x = new Il2CppSystem.Int32 { m_value = 5 };
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x.BoxIl2CppObject().Unbox<int>();
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var name = type.AssemblyQualifiedName;
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if (toType.IsEnum)
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return Enum.ToObject(toType, Il2CppSystem.Enum.ToUInt64(cppObj));
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if (!unboxMethods.ContainsKey(type.AssemblyQualifiedName))
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var name = toType.AssemblyQualifiedName;
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if (!unboxMethods.ContainsKey(toType.AssemblyQualifiedName))
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{
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unboxMethods.Add(name, typeof(Il2CppObjectBase)
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.GetMethod("Unbox")
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.MakeGenericMethod(type));
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.MakeGenericMethod(toType));
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}
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return unboxMethods[name].Invoke(obj, new object[0]);
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return unboxMethods[name].Invoke(cppObj, new object[0]);
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}
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catch (Exception ex)
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{
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@ -282,6 +297,13 @@ namespace UnityExplorer
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private static readonly Type[] emptyTypes = new Type[0];
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private static readonly object[] emptyArgs = new object[0];
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private static Il2CppSystem.Object BoxIl2CppObject(object cppStruct, Type structType)
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{
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return GetMethodInfo(structType, "BoxIl2CppObject", emptyTypes)
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.Invoke(cppStruct, emptyArgs)
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as Il2CppSystem.Object;
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}
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public Il2CppSystem.Object BoxIl2CppObject(object value)
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{
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if (value == null)
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@ -298,19 +320,10 @@ namespace UnityExplorer
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if (type.IsPrimitive && AllTypes.TryGetValue($"Il2Cpp{type.FullName}", out Type cppType))
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{
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// Create an Il2CppSystem representation of the value
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var cppStruct = Activator.CreateInstance(cppType);
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// set the 'm_value' field of the il2cpp struct to the system value
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GetFieldInfo(cppType, "m_value").SetValue(cppStruct, value);
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// set the cpp representations as our references
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value = cppStruct;
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type = cppType;
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return BoxIl2CppObject(MakeIl2CppPrimitive(cppType, value), cppType);
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}
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return (Il2CppSystem.Object)GetMethodInfo(type, "BoxIl2CppObject", emptyTypes)
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.Invoke(value, emptyArgs);
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return BoxIl2CppObject(value, type);
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}
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catch (Exception ex)
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{
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@ -319,6 +332,42 @@ namespace UnityExplorer
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}
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}
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// Helpers for Il2Cpp primitive <-> Mono
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internal static readonly Dictionary<string, Type> il2cppPrimitivesToMono = new Dictionary<string, Type>
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{
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{ "Il2CppSystem.Boolean", typeof(bool) },
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{ "Il2CppSystem.Byte", typeof(byte) },
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{ "Il2CppSystem.SByte", typeof(sbyte) },
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{ "Il2CppSystem.Char", typeof(char) },
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{ "Il2CppSystem.Double", typeof(double) },
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{ "Il2CppSystem.Single", typeof(float) },
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{ "Il2CppSystem.Int32", typeof(int) },
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{ "Il2CppSystem.UInt32", typeof(uint) },
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{ "Il2CppSystem.Int64", typeof(long) },
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{ "Il2CppSystem.UInt64", typeof(ulong) },
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{ "Il2CppSystem.Int16", typeof(short) },
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{ "Il2CppSystem.UInt16", typeof(ushort) },
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{ "Il2CppSystem.IntPtr", typeof(IntPtr) },
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{ "Il2CppSystem.UIntPtr", typeof(UIntPtr) }
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};
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public static bool IsIl2CppPrimitive(object obj) => IsIl2CppPrimitive(obj.GetType());
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public static bool IsIl2CppPrimitive(Type type) => il2cppPrimitivesToMono.ContainsKey(type.FullName);
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public object MakeMonoPrimitive(object cppPrimitive)
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{
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return GetFieldInfo(cppPrimitive.GetType(), "m_value").GetValue(cppPrimitive);
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}
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public object MakeIl2CppPrimitive(Type cppType, object monoValue)
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{
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var cppStruct = Activator.CreateInstance(cppType);
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GetFieldInfo(cppType, "m_value").SetValue(cppStruct, monoValue);
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return cppStruct;
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}
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#endregion
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#region Strings
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@ -340,12 +389,12 @@ namespace UnityExplorer
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return false;
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}
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public void BoxStringToType(ref object value, Type castTo)
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public object BoxStringToType(object value, Type castTo)
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{
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if (castTo == typeof(Il2CppSystem.String))
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value = (Il2CppSystem.String)(value as string);
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return (Il2CppSystem.String)(value as string);
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else
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value = (Il2CppSystem.Object)(value as string);
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return (Il2CppSystem.Object)(value as string);
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}
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public string UnboxString(object value)
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@ -137,9 +137,14 @@ namespace UnityExplorer.Tests
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public static Il2CppSystem.Object cppBoxedInt;
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public static Il2CppSystem.Int32 cppInt;
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public static Il2CppSystem.Decimal cppDecimal;
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public static Il2CppSystem.Object cppDecimalBoxed;
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public static Il2CppSystem.Object cppVector3Boxed;
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public static Il2CppSystem.Collections.Hashtable cppHashset;
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public static Dictionary<Il2CppSystem.String, Il2CppSystem.Object> CppBoxedDict;
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#endif
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static TestClass()
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@ -148,6 +153,16 @@ namespace UnityExplorer.Tests
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BigList.Add(i.ToString());
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#if CPP
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CppBoxedDict = new Dictionary<Il2CppSystem.String, Il2CppSystem.Object>();
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CppBoxedDict.Add("1", new Il2CppSystem.Int32 { m_value = 1 }.BoxIl2CppObject());
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CppBoxedDict.Add("2", new Il2CppSystem.Int32 { m_value = 2 }.BoxIl2CppObject());
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CppBoxedDict.Add("3", new Il2CppSystem.Int32 { m_value = 3 }.BoxIl2CppObject());
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CppBoxedDict.Add("4", new Il2CppSystem.Int32 { m_value = 4 }.BoxIl2CppObject());
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cppDecimal = new Il2CppSystem.Decimal(1f);
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cppDecimalBoxed = new Il2CppSystem.Decimal(1f).BoxIl2CppObject();
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cppVector3Boxed = Vector3.down.BoxIl2CppObject();
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CppBoxedList = new List<Il2CppSystem.Object>();
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CppBoxedList.Add((Il2CppSystem.String)"boxedString");
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