public static bool GenInternalMethod(MethodGenerator metGen, CodePrinter prt)
{
MethodX metX = metGen.CurrMethod;
GeneratorContext genContext = metGen.GenContext;
string typeName = metX.DeclType.GetNameKey();
string metName = metX.Def.Name;
string metSigName = metX.GetNameKey();
if (typeName == "Object")
{
if (metName == "GetInternalTypeID")
{
prt.AppendLine("return (int32_t)arg_0->TypeID;");
return(true);
}
}
else if (typeName == "String")
{
FieldX fldLen = metX.DeclType.Fields.FirstOrDefault(
fld => fld.FieldType.ElementType == dnlib.DotNet.ElementType.I4);
FieldX fldFirstChar = metX.DeclType.Fields.FirstOrDefault(
fld => fld.FieldType.ElementType == dnlib.DotNet.ElementType.Char);
if (metName == "get_Length")
{
prt.AppendFormatLine(@"return arg_0->{0};",
genContext.GetFieldName(fldLen));
return(true);
}
else if (metName == "get_Chars")
{
prt.AppendFormatLine("IL2CPP_CHECK_RANGE(0, arg_0->{0}, arg_1);",
genContext.GetFieldName(fldLen));
prt.AppendFormatLine("return ((uint16_t*)&arg_0->{0})[arg_1];",
genContext.GetFieldName(fldFirstChar));
return(true);
}
else if (metName == "InternalMarvin32HashString")
{
prt.AppendFormatLine("return il2cpp_HashString(&arg_0->{0}, arg_0->{1});",
genContext.GetFieldName(fldFirstChar),
genContext.GetFieldName(fldLen));
return(true);
}
else if (metName == "FastAllocateString")
{
prt.AppendFormatLine(
"cls_String* str = (cls_String*)IL2CPP_NEW(sizeof(cls_String) + sizeof(uint16_t) * arg_0, {0}, 1);",
genContext.GetStringTypeID());
prt.AppendFormatLine("str->{0} = arg_0;",
genContext.GetFieldName(fldLen));
prt.AppendLine("return str;");
return(true);
}
else if (metSigName == ".ctor|Void(Char*,Int32,Int32)|20")
{
prt.AppendFormatLine("arg_0->{0} = arg_3;",
genContext.GetFieldName(fldLen));
prt.AppendFormatLine("IL2CPP_MEMCPY(&arg_0->{0}, arg_1 + arg_2, sizeof(uint16_t) * arg_3);",
genContext.GetFieldName(fldFirstChar));
return(true);
}
}
else if (typeName == "System.Array")
{
if (metName == "get_Rank")
{
prt.AppendLine("if (arg_0->Rank == 0)");
++prt.Indents;
prt.AppendLine("return 1;");
--prt.Indents;
prt.AppendLine("return arg_0->Rank;");
return(true);
}
else if (metName == "get_Length")
{
prt.AppendLine("return il2cpp_Array__GetLength(arg_0);");
return(true);
}
else if (metName == "get_LongLength")
{
prt.AppendLine("return il2cpp_Array__GetLongLength(arg_0);");
return(true);
}
else if (metName == "GetLength")
{
prt.AppendLine("return il2cpp_Array__GetLength(arg_0, arg_1);");
return(true);
}
else if (metName == "GetLowerBound")
{
prt.AppendLine("return il2cpp_Array__GetLowerBound(arg_0, arg_1);");
return(true);
}
else if (metName == "GetUpperBound")
{
prt.AppendLine("return il2cpp_Array__GetUpperBound(arg_0, arg_1);");
return(true);
}
else if (metName == "Copy")
{
prt.AppendLine("return il2cpp_Array__Copy(arg_0, arg_1, arg_2, arg_3, arg_4);");
return(true);
}
else if (metName == "Clear")
{
prt.AppendLine("return il2cpp_Array__Clear(arg_0, arg_1, arg_2);");
return(true);
}
}
else if (typeName == "System.Runtime.CompilerServices.RuntimeHelpers")
{
if (metName == "IsReferenceOrContainsReferences")
{
var targetType = GetMethodGenType(metX, genContext);
prt.AppendFormatLine("return {0};",
genContext.IsRefOrContainsRef(targetType) ? "1" : "0");
return(true);
}
else if (metName == "CanCompareBits")
{
var targetType = GetMethodGenType(metX, genContext);
bool canCompareBits = true;
foreach (var fldX in targetType.Fields)
{
if (!Helper.IsBasicValueType(fldX.FieldType.ElementType))
{
canCompareBits = false;
break;
}
}
prt.AppendFormatLine("return {0};",
canCompareBits ? "1" : "0");
return(true);
}
else if (metName == "GetInternalTypeID")
{
var targetType = GetMethodGenType(metX, genContext);
prt.AppendFormatLine("return {0};",
genContext.GetTypeID(targetType));
return(true);
}
else if (metName == "FastCompareBits")
{
var argTySig = metX.ParamTypes[0].Next;
metGen.RefValueTypeImpl(argTySig);
if (Helper.IsBasicValueType(argTySig.ElementType) ||
genContext.GetTypeBySig(argTySig).IsEnumType)
{
prt.AppendLine("return *arg_0 == *arg_1 ? 1 : 0;");
}
else
{
prt.AppendLine("return IL2CPP_MEMCMP(arg_0, arg_1, sizeof(*arg_0)) == 0 ? 1 : 0;");
}
return(true);
}
else if (metName == "InitializeArray")
{
TypeX tyArg1 = genContext.GetTypeBySig(metX.ParamTypes[1]);
Debug.Assert(tyArg1 != null);
FieldX rtFldX = tyArg1.Fields.First();
prt.AppendFormatLine("il2cpp_Array__Init(arg_0, (il2cppFieldInfo*)arg_1.{0});",
genContext.GetFieldName(rtFldX));
return(true);
}
else if (metName == "Equals")
{
prt.AppendLine("return arg_0 == arg_1 ? 1 : 0;");
return(true);
}
else if (metName == "GetHashCode")
{
prt.AppendLine("uintptr_t val = (uintptr_t)arg_0;");
prt.AppendLine("return (int32_t)((uint32_t)val ^ (uint32_t)(val >> 32) ^ (uint32_t)0x14AE055C);");
return(true);
}
}
else if (typeName == "System.Runtime.CompilerServices.JitHelpers")
{
if (metName == "GetRawSzArrayData")
{
prt.AppendLine("IL2CPP_ASSERT(arg_0->Rank == 0);");
prt.AppendLine("return (uint8_t*)&arg_0[1];");
return(true);
}
}
else if (typeName == "Internal.Runtime.CompilerServices.Unsafe")
{
if (metName == "As")
{
prt.AppendFormatLine("return ({0})arg_0;",
genContext.GetTypeName(metX.ReturnType));
return(true);
}
}
else if (typeName == "System.Buffer")
{
if (metName == "__Memmove")
{
prt.AppendLine("IL2CPP_MEMMOVE(arg_0, arg_1, arg_2);");
return(true);
}
}
else if (typeName == "System.Math")
{
if (metName == "Abs")
{
prt.AppendLine("return il2cpp_Abs(arg_0);");
return(true);
}
else if (metName == "Sqrt")
{
prt.AppendLine("return il2cpp_Sqrt(arg_0);");
return(true);
}
else if (metName == "Sin")
{
prt.AppendLine("return il2cpp_Sin(arg_0);");
return(true);
}
else if (metName == "Cos")
{
prt.AppendLine("return il2cpp_Cos(arg_0);");
return(true);
}
else if (metName == "Tan")
{
prt.AppendLine("return il2cpp_Tan(arg_0);");
return(true);
}
else if (metName == "Pow")
{
prt.AppendLine("return il2cpp_Pow(arg_0, arg_1);");
return(true);
}
}
else if (typeName == "System.Threading.Monitor")
{
if (metName == "ReliableEnter")
{
prt.AppendLine("il2cpp_SpinLock(arg_0->Flags[0]);");
prt.AppendLine("*arg_1 = 1;");
return(true);
}
else if (metName == "Exit")
{
prt.AppendLine("il2cpp_SpinUnlock(arg_0->Flags[0]);");
return(true);
}
}
else if (typeName == "System.Threading.Interlocked")
{
if (metName == "CompareExchange")
{
prt.AppendLine("return il2cpp_CompareExchange(arg_0, arg_1, arg_2);");
return(true);
}
}
else if (typeName == "System.GC")
{
if (metName == "_Collect")
{
prt.AppendLine("il2cpp_GC_Collect();");
return(true);
}
}
return(false);
}
private void GenerateIsType(CodePrinter prtDecl, CodePrinter prtImpl)
{
if (CurrType.IsValueType)
{
return;
}
CodePrinter prt = new CodePrinter();
prt.AppendFormat("uint8_t istype_{0}(uint32_t typeID)",
GenContext.GetTypeName(CurrType));
string strDecl = prt.ToString() + ";\n";
prt.AppendLine("\n{");
++prt.Indents;
var derivedRange = new List <TypeX>(CurrType.DerivedTypes);
derivedRange.Add(CurrType);
List <TypeX> derTypes = new List <TypeX>();
foreach (var derTyX in derivedRange)
{
// 跳过不分配在堆上的类型
if (!derTyX.IsInstantiated || derTyX.IsValueType || derTyX.Def.IsInterface)
{
continue;
}
derTypes.Add(derTyX);
}
if (derTypes.Count > 0)
{
prt.AppendLine("switch (typeID)\n{");
++prt.Indents;
derTypes.Sort((lhs, rhs) =>
GenContext.GetTypeID(lhs).CompareTo(GenContext.GetTypeID(rhs)));
foreach (var derTyX in derTypes)
{
prt.AppendFormatLine("// {0}",
derTyX.GetNameKey());
prt.AppendFormatLine("case {0}:",
GenContext.GetTypeID(derTyX));
}
++prt.Indents;
prt.AppendLine("return 1;");
--prt.Indents;
--prt.Indents;
prt.AppendLine("}");
}
prt.AppendLine("return 0;");
--prt.Indents;
prt.AppendLine("}");
prtDecl.Append(strDecl);
prtImpl.Append(prt.ToString());
}
private void GenIsTypeFunc(CodePrinter prtDecl, CodePrinter prtImpl, bool currIsObject)
{
if (CurrType.IsValueType || !CurrType.NeedGenIsType)
{
return;
}
CodePrinter prt = new CodePrinter();
prt.AppendFormat("uint8_t {0}(uint32_t typeID)",
GenContext.GetIsTypeFuncName(CurrType));
string strDecl = prt.ToString() + ";\n";
prt.AppendLine("\n{");
++prt.Indents;
var derivedRange = new List <TypeX>(CurrType.DerivedTypes);
derivedRange.Add(CurrType);
var derivedEnumTypes = CurrType.UnBoxedType?.DerivedEnumTypes;
if (derivedEnumTypes != null)
{
derivedRange.AddRange(derivedEnumTypes);
}
List <TypeX> derTypes = new List <TypeX>();
foreach (var derTyX in derivedRange)
{
// 跳过不分配在堆上的类型
if (!derTyX.IsInstantiated || derTyX.Def.IsInterface)
{
continue;
}
// 如果当前类型是 object, 则跳过值类型
if (currIsObject && derTyX.IsValueType)
{
continue;
}
derTypes.Add(derTyX);
}
if (derTypes.Count > 0)
{
prt.AppendLine("switch (typeID)\n{");
++prt.Indents;
derTypes.Sort((lhs, rhs) =>
GenContext.GetTypeID(lhs).CompareTo(GenContext.GetTypeID(rhs)));
foreach (var derTyX in derTypes)
{
prt.AppendFormatLine("// {0}",
Helper.EscapeString(derTyX.GetNameKey()));
prt.AppendFormatLine("case {0}:",
GenContext.GetTypeID(derTyX));
}
++prt.Indents;
prt.AppendLine("return 1;");
--prt.Indents;
--prt.Indents;
prt.AppendLine("}");
}
prt.AppendLine("return 0;");
--prt.Indents;
prt.AppendLine("}");
prtDecl.Append(strDecl);
prtImpl.Append(prt.ToString());
}
