public void GenDefineCode(
int splitLines,
out Dictionary <string, int> strSplitMap,
out Dictionary <int, StringBuilder> codeMap,
out string strTypeDefs)
{
List <string> sortedStrs = GetSortedStrings();
strSplitMap = new Dictionary <string, int>();
codeMap = new Dictionary <int, StringBuilder>();
HashSet <int> lenSet = new HashSet <int>();
uint strTypeID = TypeGen.TypeMgr.GetTypeByName("System.String").GetCppTypeID();
int index = 0;
int counter = 0;
StringBuilder currSb = new StringBuilder();
codeMap.Add(index, currSb);
foreach (var str in sortedStrs)
{
lenSet.Add(str.Length);
strSplitMap.Add(str, index);
currSb.Append(GenStringCode(str, strTypeID));
++counter;
if (counter >= splitLines)
{
counter = 0;
++index;
currSb = new StringBuilder();
codeMap.Add(index, currSb);
}
}
Reset();
var prt = new CodePrinter();
foreach (var len in lenSet)
{
prt.AppendFormatLine("struct il2cppString_{0}\n{{",
len + 1);
++prt.Indents;
prt.AppendLine("IL2CPP_OBJECT_BODY;");
prt.AppendFormatLine("int len;\nuint16_t str[{0}];",
len + 1);
--prt.Indents;
prt.AppendLine("};");
}
strTypeDefs = prt.ToString();
}
private void GenIsinstCode(TypeX currType, out string codeDecl, out string codeImpl)
{
List <TypeX> sortedTypes = new List <TypeX>();
if (currType.IsInstanced)
{
sortedTypes.Add(currType);
}
foreach (var tyX in currType.DerivedTypes)
{
if (tyX.IsInstanced)
{
sortedTypes.Add(tyX);
}
}
sortedTypes.Sort((x, y) => x.GetCppTypeID().CompareTo(y.GetCppTypeID()));
CodePrinter prt = new CodePrinter();
prt.AppendFormat("bool isinst_{0}(uint32_t typeID)",
currType.GetCppName());
codeDecl = prt + ";\n";
prt.AppendLine("\n{");
++prt.Indents;
prt.AppendLine("switch (typeID)\n{");
++prt.Indents;
foreach (var tyX in sortedTypes)
{
prt.AppendFormatLine("// {0}\ncase {1}:",
tyX.PrettyName(),
tyX.GetCppTypeID());
}
++prt.Indents;
prt.AppendLine("return true;");
prt.Indents -= 2;
prt.AppendLine("}");
prt.AppendLine("return false;");
--prt.Indents;
prt.AppendLine("}");
codeImpl = prt.ToString();
}
private CompileUnit GenInitUnit(Dictionary <string, string> transMap)
{
CompileUnit unit = new CompileUnit();
unit.Name = "il2cppInit";
CodePrinter prtGC = new CodePrinter();
CodePrinter prtInit = new CodePrinter();
bool addedRoots = false;
foreach (var kv in InitFldsMap)
{
unit.ImplDepends.Add(transMap[kv.Key]);
foreach (var item in kv.Value)
{
if (item.Item2)
{
prtGC.AppendFormatLine("IL2CPP_ADD_ROOT({0}),", item.Item1);
addedRoots = true;
}
prtInit.AppendFormatLine("{0} = {{}};", item.Item1);
}
}
CodePrinter prtFunc = new CodePrinter();
prtFunc.AppendLine("void il2cpp_InitVariables()\n{");
++prtFunc.Indents;
if (addedRoots)
{
prtFunc.AppendLine("il2cppRootItem roots[] =\n{");
++prtFunc.Indents;
prtFunc.Append(prtGC.ToString());
--prtFunc.Indents;
prtFunc.AppendLine("};");
prtFunc.AppendLine("il2cpp_CommitRoots(roots, sizeof(roots) / sizeof(roots[0]));");
}
prtFunc.Append(prtInit.ToString());
--prtFunc.Indents;
prtFunc.AppendLine("}");
unit.ImplCode = prtFunc.ToString();
return(unit);
}
private string GenStringCode(List <string> strList, uint strTypeID)
{
CodePrinter prt = new CodePrinter();
foreach (string str in strList)
{
StringProp prop = StringMap[str];
string strAry = StringToArrayOrRaw(str, out bool isRaw);
prt.AppendFormatLine("// {0}", EscapeString(str));
prt.AppendFormatLine("static const struct {{ cls_Object obj; int32_t len; {5} str[{0}]; }} {1} {{ {{{2}}}, {3}, {4} }};",
str.Length + 1,
GetConstName(prop.ConstIndex),
strTypeID,
str.Length,
strAry,
isRaw ? "char16_t" : "uint16_t");
}
return(prt.ToString());
}
public CompileUnit Generate()
{
CompileUnit unit = new CompileUnit();
unit.Name = GenContext.GetTypeName(CurrType);
// 重排字段
var fields = LayoutFields(out var sfields);
// 生成类结构
CodePrinter prtDecl = new CodePrinter();
if (!CurrType.IsEnumType)
{
prtDecl.AppendFormatLine("// {0}", CurrType.GetNameKey());
var baseType = CurrType.BaseType;
// 值类型不继承任何基类
if (CurrType.IsValueType)
{
baseType = null;
}
// 接口类型继承 object
if (baseType == null && CurrType.Def.IsInterface)
{
baseType = GenContext.TypeMgr.GetTypeByName("Object");
}
if (baseType != null)
{
string strBaseTypeName = GenContext.GetTypeName(baseType);
unit.DeclDepends.Add(strBaseTypeName);
prtDecl.AppendFormatLine("struct {0} : {1}",
GenContext.GetTypeName(CurrType),
strBaseTypeName);
}
else
{
prtDecl.AppendFormatLine("struct {0}",
GenContext.GetTypeName(CurrType));
}
prtDecl.AppendLine("{");
++prtDecl.Indents;
// 生成对象内置字段
if (CurrType.IsArrayType)
{
var arrayInfo = CurrType.ArrayInfo;
if (arrayInfo.IsSZArray)
{
prtDecl.AppendLine("int32_t Length;");
}
else
{
uint rank = arrayInfo.Rank;
for (int i = 0; i < rank; ++i)
{
prtDecl.AppendFormatLine("int32_t LowerBound{0};\nint32_t Size{0};", i);
}
}
}
else
{
string nameKey = CurrType.GetNameKey();
if (nameKey == "Object")
{
prtDecl.AppendLine("uint32_t TypeID;");
}
else if (nameKey == "System.Array")
{
prtDecl.AppendLine("int32_t Rank;");
}
}
// 生成字段
foreach (var fldX in fields)
{
RefValueTypeDecl(unit, fldX.FieldType);
prtDecl.AppendLine("// " + fldX.GetReplacedNameKey());
prtDecl.AppendFormatLine("{0} {1};",
GenContext.GetTypeName(fldX.FieldType),
GenContext.GetFieldName(fldX));
}
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
CodePrinter prtImpl = new CodePrinter();
// 生成类型判断函数
GenerateIsType(prtDecl, prtImpl);
// 生成静态字段
foreach (var sfldX in sfields)
{
RefValueTypeDecl(unit, sfldX.FieldType);
string fldDecl = string.Format("{0} {1};",
GenContext.GetTypeName(sfldX.FieldType),
GenContext.GetFieldName(sfldX));
prtDecl.AppendFormatLine("// {0} -> {1}", sfldX.DeclType.GetNameKey(), sfldX.GetReplacedNameKey());
prtDecl.AppendLine("extern " + fldDecl);
prtImpl.AppendLine(fldDecl);
}
// 生成方法
foreach (MethodX metX in CurrType.Methods)
{
var metGen = new MethodGenerator(GenContext, metX);
metGen.Generate();
prtDecl.AppendFormatLine("// {0} -> {1}", metX.DeclType.GetNameKey(), metX.GetReplacedNameKey());
prtDecl.Append(metGen.DeclCode);
unit.DeclDepends.UnionWith(metGen.DeclDepends);
prtImpl.Append(metGen.ImplCode);
unit.ImplDepends.UnionWith(metGen.ImplDepends);
unit.StringDepends.UnionWith(metGen.StringDepends);
}
unit.DeclCode = prtDecl.ToString();
unit.ImplCode = prtImpl.ToString();
return(unit);
}
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());
}
public CompileUnit Generate()
{
CompileUnit unit = new CompileUnit();
unit.Name = GenContext.GetTypeName(CurrType, false);
// 重排字段
var fields = LayoutFields(out var sfields);
string nameKey = CurrType.GetNameKey();
bool currIsObject = nameKey == "Object";
// 生成类结构
CodePrinter prtDecl = new CodePrinter();
if (!CurrType.IsEnumType)
{
prtDecl.AppendFormatLine("// {0}", nameKey);
var baseType = CurrType.BaseType;
// 值类型不继承任何基类
if (CurrType.IsValueType)
{
baseType = null;
}
// 接口类型继承 object
if (baseType == null && CurrType.Def.IsInterface)
{
baseType = GenContext.TypeMgr.GetTypeByName("Object");
}
if (baseType != null)
{
string strBaseTypeName = GenContext.GetTypeName(baseType);
unit.DeclDepends.Add(strBaseTypeName);
prtDecl.AppendFormatLine("struct {0} : {1}",
GenContext.GetTypeName(CurrType),
strBaseTypeName);
}
else
{
prtDecl.AppendFormatLine("struct {0}",
GenContext.GetTypeName(CurrType));
}
prtDecl.AppendLine("{");
++prtDecl.Indents;
// 生成对象内置字段
if (CurrType.IsArrayType)
{
var arrayInfo = CurrType.ArrayInfo;
if (!arrayInfo.IsSZArray)
{
uint rank = arrayInfo.Rank;
for (int i = 0; i < rank; ++i)
{
prtDecl.AppendFormatLine("int32_t LowerBound{0};\nuint32_t Size{0};", i);
}
}
}
else
{
if (currIsObject)
{
prtDecl.AppendLine("uint32_t TypeID;");
prtDecl.AppendLine("uint8_t Flags[4];");
}
else if (nameKey == "System.Array")
{
prtDecl.AppendLine("uintptr_t Length;");
prtDecl.AppendLine("uint32_t Rank;");
prtDecl.AppendLine("uint32_t ElemSize;");
}
}
bool isExplicitLayout = CurrType.Def.IsExplicitLayout;
uint classSize = CurrType.Def.ClassSize;
bool hasStructSize = CurrType.Def.HasClassLayout && classSize != 0;
if (isExplicitLayout || hasStructSize)
{
prtDecl.AppendLine("union\n{");
++prtDecl.Indents;
if (!isExplicitLayout && fields.Count != 0)
{
prtDecl.AppendLine("struct\n{");
++prtDecl.Indents;
}
}
int fldCounter = 0;
// 生成字段
foreach (var fldX in fields)
{
RefValueTypeDecl(unit, fldX.FieldType);
bool isFieldExLayout = isExplicitLayout && fldX.Def.FieldOffset != 0;
if (isFieldExLayout)
{
prtDecl.AppendLine("struct\n{");
++prtDecl.Indents;
prtDecl.AppendFormatLine("uint8_t padding_{0}[{1}];",
fldCounter,
fldX.Def.FieldOffset);
}
prtDecl.AppendLine("// " + fldX.GetReplacedNameKey());
prtDecl.AppendFormatLine("{0} {1};",
GenContext.GetTypeName(fldX.FieldType),
GenContext.GetFieldName(fldX));
if (isFieldExLayout)
{
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
++fldCounter;
}
if (isExplicitLayout || hasStructSize)
{
if (!isExplicitLayout && fields.Count != 0)
{
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
if (hasStructSize)
{
prtDecl.AppendFormatLine("uint8_t padding_struct[{0}];",
classSize);
}
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
CodePrinter prtImpl = new CodePrinter();
// 生成类型判断函数
GenerateIsType(prtDecl, prtImpl, currIsObject);
// 生成静态字段
foreach (var sfldX in sfields)
{
RefValueTypeDecl(unit, sfldX.FieldType);
string fldDecl = string.Format("{0} {1};",
GenContext.GetTypeName(sfldX.FieldType),
GenContext.GetFieldName(sfldX));
prtDecl.AppendFormatLine("// {0} -> {1}", sfldX.DeclType.GetNameKey(), sfldX.GetReplacedNameKey());
prtDecl.AppendLine("extern " + fldDecl);
prtImpl.AppendLine(fldDecl);
}
// 生成方法
foreach (MethodX metX in CurrType.Methods)
{
var metGen = new MethodGenerator(GenContext, metX);
metGen.Generate();
AppendRuntimeFlags(metX, prtDecl);
prtDecl.AppendFormatLine("// {0}{1}{2} -> {3}",
!metX.Def.HasBody && !metX.Def.IsAbstract ? "extern " : null,
metX.Def.IsInternalCall ? "internalcall " : null,
metX.DeclType.GetNameKey(),
metX.GetReplacedNameKey());
prtDecl.Append(metGen.DeclCode);
unit.DeclDepends.UnionWith(metGen.DeclDepends);
prtImpl.Append(metGen.ImplCode);
unit.ImplDepends.UnionWith(metGen.ImplDepends);
unit.StringDepends.UnionWith(metGen.StringDepends);
}
unit.DeclCode = prtDecl.ToString();
unit.ImplCode = prtImpl.ToString();
return(unit);
}
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());
}
public CompileUnit Generate()
{
CompileUnit unit = new CompileUnit();
string strTypeName = GenContext.GetTypeName(CurrType, false);
unit.Name = strTypeName;
// 重排字段
var fields = LayoutFields(out var sfields);
string nameKey = CurrType.GetNameKey();
bool currIsObject = nameKey == "Object";
// 生成类结构
CodePrinter prtDecl = new CodePrinter();
if (!CurrType.IsEnumType)
{
prtDecl.AppendFormatLine("// {0}", Helper.EscapeString(nameKey));
ushort packSize = CurrType.Def.HasClassLayout ? CurrType.Def.PackingSize : (ushort)0;
if (packSize > 2 && !Helper.IsPowerOfTwo(packSize))
{
throw new TypeLoadException();
}
if (packSize != 0)
{
prtDecl.AppendLine("#if defined(IL2CPP_MSVC_LIKE)");
prtDecl.AppendFormatLine("#pragma pack(push, {0})", packSize);
prtDecl.AppendLine("#endif");
}
var baseType = CurrType.BaseType;
// 值类型不继承任何基类
if (CurrType.IsValueType)
{
baseType = null;
}
// 接口类型继承 object
if (baseType == null && CurrType.Def.IsInterface)
{
baseType = GenContext.GetTypeByName("Object");
}
if (baseType != null)
{
string strBaseTypeName = GenContext.GetTypeName(baseType);
unit.DeclDepends.Add(strBaseTypeName);
prtDecl.AppendFormatLine("struct {0} : {1}",
strTypeName,
strBaseTypeName);
}
else
{
prtDecl.AppendFormatLine("struct {0}",
strTypeName);
}
prtDecl.AppendLine("{");
++prtDecl.Indents;
// 生成对象内置字段
if (CurrType.IsArrayType)
{
var arrayInfo = CurrType.ArrayInfo;
if (!arrayInfo.IsSZArray)
{
uint rank = arrayInfo.Rank;
for (int i = 0; i < rank; ++i)
{
prtDecl.AppendFormatLine("int32_t LowerBound{0};\nuint32_t Size{0};", i);
}
}
}
else
{
if (currIsObject)
{
prtDecl.AppendLine("uint32_t TypeID;");
prtDecl.AppendLine("uint8_t Flags[4];");
}
else if (nameKey == "System.Array")
{
prtDecl.AppendLine("uint32_t Length;");
prtDecl.AppendLine("uint32_t ElemSize : 24;");
prtDecl.AppendLine("uint32_t Rank : 8;");
}
}
bool isExplicitLayout = CurrType.Def.IsExplicitLayout;
uint classSize = CurrType.Def.ClassSize;
bool hasStructSize = CurrType.Def.HasClassLayout && classSize != 0;
if (isExplicitLayout || hasStructSize)
{
prtDecl.AppendLine("union\n{");
++prtDecl.Indents;
if (!isExplicitLayout && fields.Count != 0)
{
prtDecl.AppendLine("struct\n{");
++prtDecl.Indents;
}
}
int fldCounter = 0;
// 生成字段
foreach (var fldX in fields)
{
RefValueTypeDecl(unit, fldX.FieldType);
bool isFieldExLayout = isExplicitLayout && fldX.Def.FieldOffset != 0;
if (isFieldExLayout)
{
prtDecl.AppendLine("struct\n{");
++prtDecl.Indents;
prtDecl.AppendFormatLine("uint8_t padding_{0}[{1}];",
fldCounter,
fldX.Def.FieldOffset);
}
prtDecl.AppendLine("// " + fldX.GetReplacedNameKey());
prtDecl.AppendFormatLine("{0} {1};",
GenContext.GetTypeName(fldX.FieldType),
GenContext.GetFieldName(fldX));
if (isFieldExLayout)
{
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
++fldCounter;
}
if (isExplicitLayout || hasStructSize)
{
if (!isExplicitLayout && fields.Count != 0)
{
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
if (hasStructSize)
{
prtDecl.AppendFormatLine("uint8_t padding_struct[{0}];",
classSize);
}
--prtDecl.Indents;
prtDecl.AppendLine("};");
}
--prtDecl.Indents;
if (packSize != 0)
{
prtDecl.AppendFormatLine("}} IL2CPP_PACKED_TAIL({0});",
packSize);
}
else
{
prtDecl.AppendLine("};");
}
if (packSize != 0)
{
prtDecl.AppendLine("#if defined(IL2CPP_MSVC_LIKE)");
prtDecl.AppendLine("#pragma pack(pop)");
prtDecl.AppendLine("#endif");
}
}
CodePrinter prtImpl = new CodePrinter();
// 生成静态字段
foreach (var sfldX in sfields)
{
RefValueTypeDecl(unit, sfldX.FieldType);
string sfldName = GenContext.GetFieldName(sfldX);
string fldDecl = string.Format("{0} {1};",
GenContext.GetTypeName(sfldX.FieldType),
sfldName);
prtDecl.AppendFormatLine("// {0} -> {1}",
Helper.EscapeString(sfldX.DeclType.GetNameKey()),
Helper.EscapeString(sfldX.GetReplacedNameKey()));
prtDecl.AppendLine("extern " + fldDecl);
prtImpl.AppendLine(fldDecl);
bool hasRef = GenContext.IsRefOrContainsRef(GenContext.GetTypeBySig(sfldX.FieldType));
GenContext.AddStaticField(strTypeName, sfldName, hasRef);
}
// 生成类型判断函数
GenIsTypeFunc(prtDecl, prtImpl, currIsObject);
// 生成方法
foreach (MethodX metX in CurrType.Methods)
{
var metGen = new MethodGenerator(GenContext, metX);
metGen.Generate();
AppendRuntimeFlags(metX, prtDecl);
prtDecl.AppendFormatLine("// {0}{1}{2} -> {3}",
Helper.IsExtern(metX.Def) ? "extern " : null,
metX.Def.IsInternalCall ? "internalcall " : null,
Helper.EscapeString(metX.DeclType.GetNameKey()),
Helper.EscapeString(metX.GetReplacedNameKey()));
prtDecl.Append(metGen.DeclCode);
unit.DeclDepends.UnionWith(metGen.DeclDepends);
prtImpl.Append(metGen.ImplCode);
unit.ImplDepends.UnionWith(metGen.ImplDepends);
unit.StringDepends.UnionWith(metGen.StringDepends);
}
GenerateMetadata(prtDecl, prtImpl);
unit.DeclCode = prtDecl.ToString();
unit.ImplCode = prtImpl.ToString();
return(unit);
}