protected override MethodInfo _Generate(DynamicMethodDefinition dmd, object context)
{
TypeBuilder typeBuilder = context as TypeBuilder;
MethodBuilder method = GenerateMethodBuilder(dmd, typeBuilder);
typeBuilder = (TypeBuilder)method.DeclaringType;
Type type = typeBuilder.CreateType();
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("MONOMOD_DMD_DUMP")))
{
string path = method.Module.FullyQualifiedName;
string name = Path.GetFileName(path);
string dir = Path.GetDirectoryName(path);
if (!string.IsNullOrEmpty(dir) && !Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
if (File.Exists(path))
{
File.Delete(path);
}
((AssemblyBuilder)typeBuilder.Assembly).Save(name);
}
return(type.GetMethod(method.Name, BindingFlags.DeclaredOnly | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static));
}
/// <summary>
/// Get a native function pointer for a given method. This matches an IL-level ldftn.
/// </summary>
/// <remarks>
/// ldftn doesn't JIT-compile the method on mono, which thus keeps the class constructor untouched.
/// On the other hand, its result thus doesn't always match that of MethodHandle.GetFunctionPointer().
/// </remarks>
/// <param name="m">The method to get a native function pointer for.</param>
/// <returns>The native function pointer.</returns>
public static IntPtr GetLdftnPointer(this MethodBase m) {
if (_GetLdftnPointerCache.TryGetValue(m, out Func<IntPtr> func))
return func();
DynamicMethodDefinition dmd = new DynamicMethodDefinition(
$"GetLdftnPointer<{m.GetID(simple: true)}>",
typeof(int), Type.EmptyTypes
);
ILProcessor il = dmd.GetILProcessor();
il.Emit(OpCodes.Ldftn, dmd.Definition.Module.ImportReference(m));
il.Emit(OpCodes.Ret);
lock (_GetLdftnPointerCache) {
return (_GetLdftnPointerCache[m] = dmd.Generate().CreateDelegate<Func<IntPtr>>() as Func<IntPtr>)();
}
}
/// <summary>
/// Fill the DynamicMethod with a stub.
/// </summary>
public static DynamicMethodDefinition Stub(this DynamicMethodDefinition dmd)
{
CIL.ILProcessor il = dmd.GetILProcessor();
for (int i = 0; i < 32; i++)
{
// Prevent mono from inlining the DynamicMethod.
il.Emit(CIL.OpCodes.Nop);
}
if (dmd.Definition.ReturnType != dmd.Definition.Module.TypeSystem.Void)
{
il.Body.Variables.Add(new CIL.VariableDefinition(dmd.Definition.ReturnType));
il.Emit(CIL.OpCodes.Ldloca_S, (sbyte)0);
il.Emit(CIL.OpCodes.Initobj, dmd.Definition.ReturnType);
il.Emit(CIL.OpCodes.Ldloc_0);
}
il.Emit(CIL.OpCodes.Ret);
return(dmd);
}
public static int GetManagedSize(this Type t)
{
if (_GetManagedSizeCache.TryGetValue(t, out int size))
{
return(size);
}
// Note: sizeof is more accurate for the "managed size" than Marshal.SizeOf (marshalled size)
// It also returns a value for types of which the size cannot be determined otherwise.
DynamicMethodDefinition dmd = new DynamicMethodDefinition(
$"GetSize<{t.FullName}>",
typeof(int), Type.EmptyTypes
);
ILProcessor il = dmd.GetILProcessor();
il.Emit(OpCodes.Sizeof, dmd.Definition.Module.ImportReference(t));
il.Emit(OpCodes.Ret);
lock (_GetManagedSizeCache) {
return(_GetManagedSizeCache[t] = (dmd.Generate().CreateDelegate(typeof(Func <int>)) as Func <int>)());
}
}
public static IntPtr GetLdftnPointer(this MethodBase m)
{
if (_GetLdftnPointerCache.TryGetValue(m, out Func <IntPtr> func))
{
return(func());
}
// Note: ldftn doesn't JIT the method on mono, keeping the class constructor untouched.
// Its result thus doesn't always match MethodHandle.GetFunctionPointer().
DynamicMethodDefinition dmd = new DynamicMethodDefinition(
$"GetLdftnPointer<{m.GetFindableID(simple: true)}>",
typeof(int), Type.EmptyTypes
);
ILProcessor il = dmd.GetILProcessor();
il.Emit(OpCodes.Ldftn, dmd.Definition.Module.ImportReference(m));
il.Emit(OpCodes.Ret);
lock (_GetLdftnPointerCache) {
return((_GetLdftnPointerCache[m] = dmd.Generate().CreateDelegate(typeof(Func <IntPtr>)) as Func <IntPtr>)());
}
}
protected override MethodInfo _Generate(DynamicMethodDefinition dmd, object context)
{
MethodDefinition def = dmd.Definition;
TypeDefinition typeDef = context as TypeDefinition;
bool moduleIsTemporary = false;
ModuleDefinition module = typeDef?.Module;
HashSet <string> accessChecksIgnored = null;
if (typeDef == null)
{
moduleIsTemporary = true;
accessChecksIgnored = new HashSet <string>();
string name = dmd.GetDumpName("Cecil");
module = ModuleDefinition.CreateModule(name, new ModuleParameters()
{
Kind = ModuleKind.Dll,
#if !CECIL0_9
ReflectionImporterProvider = MMReflectionImporter.ProviderNoDefault
#endif
});
module.Assembly.CustomAttributes.Add(new CustomAttribute(module.ImportReference(DynamicMethodDefinition.c_UnverifiableCodeAttribute)));
if (dmd.Debug)
{
CustomAttribute caDebug = new CustomAttribute(module.ImportReference(DynamicMethodDefinition.c_DebuggableAttribute));
caDebug.ConstructorArguments.Add(new CustomAttributeArgument(
module.ImportReference(typeof(DebuggableAttribute.DebuggingModes)),
DebuggableAttribute.DebuggingModes.DisableOptimizations | DebuggableAttribute.DebuggingModes.Default
));
module.Assembly.CustomAttributes.Add(caDebug);
}
typeDef = new TypeDefinition(
"",
$"DMD<{dmd.OriginalMethod?.Name?.Replace('.', '_')}>?{GetHashCode()}",
Mono.Cecil.TypeAttributes.Public | Mono.Cecil.TypeAttributes.Abstract | Mono.Cecil.TypeAttributes.Sealed | Mono.Cecil.TypeAttributes.Class
)
{
BaseType = module.TypeSystem.Object
};
module.Types.Add(typeDef);
}
try {
#pragma warning disable IDE0039 // Use local function
Relinker relinker = (mtp, ctx) => {
return(module.ImportReference(mtp));
};
#pragma warning restore IDE0039 // Use local function
MethodDefinition clone = new MethodDefinition("_" + def.Name.Replace('.', '_'), def.Attributes, module.TypeSystem.Void)
{
MethodReturnType = def.MethodReturnType,
Attributes = Mono.Cecil.MethodAttributes.Public | Mono.Cecil.MethodAttributes.HideBySig | Mono.Cecil.MethodAttributes.Public | Mono.Cecil.MethodAttributes.Static,
ImplAttributes = Mono.Cecil.MethodImplAttributes.IL | Mono.Cecil.MethodImplAttributes.Managed,
DeclaringType = typeDef,
NoInlining = true
};
foreach (ParameterDefinition param in def.Parameters)
{
clone.Parameters.Add(param.Clone().Relink(relinker, clone));
}
clone.ReturnType = def.ReturnType.Relink(relinker, clone);
typeDef.Methods.Add(clone);
clone.HasThis = def.HasThis;
Mono.Cecil.Cil.MethodBody body = clone.Body = def.Body.Clone(clone);
foreach (VariableDefinition var in clone.Body.Variables)
{
var.VariableType = var.VariableType.Relink(relinker, clone);
}
foreach (ExceptionHandler handler in clone.Body.ExceptionHandlers)
{
if (handler.CatchType != null)
{
handler.CatchType = handler.CatchType.Relink(relinker, clone);
}
}
for (int instri = 0; instri < body.Instructions.Count; instri++)
{
Instruction instr = body.Instructions[instri];
object operand = instr.Operand;
// Import references.
if (operand is ParameterDefinition param)
{
operand = clone.Parameters[param.Index];
}
else if (operand is IMetadataTokenProvider mtp)
{
operand = mtp.Relink(relinker, clone);
}
if (operand is DynamicMethodReference dmref)
{
// TODO: Fix up DynamicMethod inline refs.
}
if (accessChecksIgnored != null && operand is MemberReference mref)
{
IMetadataScope asmRef = (mref as TypeReference)?.Scope ?? mref.DeclaringType.Scope;
if (!accessChecksIgnored.Contains(asmRef.Name))
{
CustomAttribute caAccess = new CustomAttribute(module.ImportReference(DynamicMethodDefinition.c_IgnoresAccessChecksToAttribute));
caAccess.ConstructorArguments.Add(new CustomAttributeArgument(
module.ImportReference(typeof(DebuggableAttribute.DebuggingModes)),
asmRef.Name
));
module.Assembly.CustomAttributes.Add(caAccess);
accessChecksIgnored.Add(asmRef.Name);
}
}
instr.Operand = operand;
}
clone.HasThis = false;
if (def.HasThis)
{
TypeReference type = def.DeclaringType;
if (type.IsValueType)
{
type = new ByReferenceType(type);
}
clone.Parameters.Insert(0, new ParameterDefinition("<>_this", Mono.Cecil.ParameterAttributes.None, type.Relink(relinker, clone)));
}
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("MONOMOD_DMD_DUMP")))
{
string dir = Path.GetFullPath(Environment.GetEnvironmentVariable("MONOMOD_DMD_DUMP"));
string name = module.Name + ".dll";
string path = Path.Combine(dir, name);
dir = Path.GetDirectoryName(path);
if (!string.IsNullOrEmpty(dir) && !Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
if (File.Exists(path))
{
File.Delete(path);
}
using (Stream fileStream = File.OpenWrite(path))
module.Write(fileStream);
}
Assembly asm = ReflectionHelper.Load(module);
return(asm.GetType(typeDef.FullName.Replace("+", "\\+"), false, false)
.GetMethod(clone.Name, BindingFlags.DeclaredOnly | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static));
} finally {
#if !CECIL0_9
if (moduleIsTemporary)
{
module.Dispose();
}
#endif
}
}
public static MethodBuilder GenerateMethodBuilder(DynamicMethodDefinition dmd, TypeBuilder typeBuilder)
{
MethodBase orig = dmd.OriginalMethod;
MethodDefinition def = dmd.Definition;
if (typeBuilder == null)
{
string dumpDir = Environment.GetEnvironmentVariable("MONOMOD_DMD_DUMP");
if (string.IsNullOrEmpty(dumpDir))
{
dumpDir = null;
}
else
{
dumpDir = Path.GetFullPath(dumpDir);
}
bool collect = string.IsNullOrEmpty(dumpDir) && _MBCanRunAndCollect;
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
new AssemblyName()
{
Name = dmd.GetDumpName("MethodBuilder")
},
collect ? (AssemblyBuilderAccess)9 : AssemblyBuilderAccess.RunAndSave,
dumpDir
);
ab.SetCustomAttribute(new CustomAttributeBuilder(DynamicMethodDefinition.c_UnverifiableCodeAttribute, new object[] {
}));
if (dmd.Debug)
{
ab.SetCustomAttribute(new CustomAttributeBuilder(DynamicMethodDefinition.c_DebuggableAttribute, new object[] {
DebuggableAttribute.DebuggingModes.DisableOptimizations | DebuggableAttribute.DebuggingModes.Default
}));
}
// Note: Debugging can fail on mono if Mono.CompilerServices.SymbolWriter.dll cannot be found,
// or if Mono.CompilerServices.SymbolWriter.SymbolWriterImpl can't be found inside of that.
// https://github.com/mono/mono/blob/f879e35e3ed7496d819bd766deb8be6992d068ed/mcs/class/corlib/System.Reflection.Emit/ModuleBuilder.cs#L146
ModuleBuilder module = ab.DefineDynamicModule($"{ab.GetName().Name}.dll", $"{ab.GetName().Name}.dll", dmd.Debug);
typeBuilder = module.DefineType(
$"DMD<{orig?.GetID(simple: true)?.Replace('.', '_')}>?{dmd.GetHashCode()}",
System.Reflection.TypeAttributes.Public | System.Reflection.TypeAttributes.Abstract | System.Reflection.TypeAttributes.Sealed | System.Reflection.TypeAttributes.Class
);
}
Type[] argTypes;
Type[][] argTypesModReq;
Type[][] argTypesModOpt;
if (orig != null)
{
ParameterInfo[] args = orig.GetParameters();
int offs = 0;
if (!orig.IsStatic)
{
offs++;
argTypes = new Type[args.Length + 1];
argTypesModReq = new Type[args.Length + 1][];
argTypesModOpt = new Type[args.Length + 1][];
argTypes[0] = orig.GetThisParamType();
argTypesModReq[0] = Type.EmptyTypes;
argTypesModOpt[0] = Type.EmptyTypes;
}
else
{
argTypes = new Type[args.Length];
argTypesModReq = new Type[args.Length][];
argTypesModOpt = new Type[args.Length][];
}
for (int i = 0; i < args.Length; i++)
{
argTypes[i + offs] = args[i].ParameterType;
argTypesModReq[i + offs] = args[i].GetRequiredCustomModifiers();
argTypesModOpt[i + offs] = args[i].GetOptionalCustomModifiers();
}
}
else
{
int offs = 0;
if (def.HasThis)
{
offs++;
argTypes = new Type[def.Parameters.Count + 1];
argTypesModReq = new Type[def.Parameters.Count + 1][];
argTypesModOpt = new Type[def.Parameters.Count + 1][];
Type type = def.DeclaringType.ResolveReflection();
if (type.IsValueType)
{
type = type.MakeByRefType();
}
argTypes[0] = type;
argTypesModReq[0] = Type.EmptyTypes;
argTypesModOpt[0] = Type.EmptyTypes;
}
else
{
argTypes = new Type[def.Parameters.Count];
argTypesModReq = new Type[def.Parameters.Count][];
argTypesModOpt = new Type[def.Parameters.Count][];
}
List <Type> modReq = new List <Type>();
List <Type> modOpt = new List <Type>();
for (int i = 0; i < def.Parameters.Count; i++)
{
_DMDEmit.ResolveWithModifiers(def.Parameters[i].ParameterType, out Type paramType, out Type[] paramTypeModReq, out Type[] paramTypeModOpt, modReq, modOpt);
public static void Generate(DynamicMethodDefinition dmd, MethodBase _mb, ILGenerator il)
{
MethodDefinition def = dmd.Definition;
DynamicMethod dm = _mb as DynamicMethod;
#if !NETSTANDARD
MethodBuilder mb = _mb as MethodBuilder;
ModuleBuilder moduleBuilder = mb?.Module as ModuleBuilder;
// moduleBuilder.Assembly sometimes avoids the .Assembly override under mysterious circumstances.
AssemblyBuilder assemblyBuilder = (mb?.DeclaringType as TypeBuilder)?.Assembly as AssemblyBuilder;
HashSet <Assembly> accessChecksIgnored = null;
if (mb != null)
{
accessChecksIgnored = new HashSet <Assembly>();
}
#endif
#if !CECIL0_9
MethodDebugInformation defInfo = dmd.Debug ? def.DebugInformation : null;
#endif
if (dm != null)
{
foreach (ParameterDefinition param in def.Parameters)
{
dm.DefineParameter(param.Index + 1, (System.Reflection.ParameterAttributes)param.Attributes, param.Name);
}
}
#if !NETSTANDARD
if (mb != null)
{
foreach (ParameterDefinition param in def.Parameters)
{
mb.DefineParameter(param.Index + 1, (System.Reflection.ParameterAttributes)param.Attributes, param.Name);
}
}
#endif
LocalBuilder[] locals = def.Body.Variables.Select(
var => {
LocalBuilder local = il.DeclareLocal(var.VariableType.ResolveReflection(), var.IsPinned);
#if !NETSTANDARD && !CECIL0_9
if (mb != null && defInfo != null && defInfo.TryGetName(var, out string name))
{
local.SetLocalSymInfo(name);
}
#endif
return(local);
}
).ToArray();
// Pre-pass - Set up label map.
Dictionary <Instruction, Label> labelMap = new Dictionary <Instruction, Label>();
foreach (Instruction instr in def.Body.Instructions)
{
if (instr.Operand is Instruction[] targets)
{
foreach (Instruction target in targets)
{
if (!labelMap.ContainsKey(target))
{
labelMap[target] = il.DefineLabel();
}
}
}
else if (instr.Operand is Instruction target)
{
if (!labelMap.ContainsKey(target))
{
labelMap[target] = il.DefineLabel();
}
}
}
#if !NETSTANDARD && !CECIL0_9
Dictionary <Document, ISymbolDocumentWriter> infoDocCache = mb == null ? null : new Dictionary <Document, ISymbolDocumentWriter>();
#endif
int paramOffs = def.HasThis ? 1 : 0;
object[] emitArgs = new object[2];
bool checkTryEndEarly = false;
foreach (Instruction instr in def.Body.Instructions)
{
if (labelMap.TryGetValue(instr, out Label label))
{
il.MarkLabel(label);
}
#if !NETSTANDARD && !CECIL0_9
SequencePoint instrInfo = defInfo?.GetSequencePoint(instr);
if (mb != null && instrInfo != null)
{
if (!infoDocCache.TryGetValue(instrInfo.Document, out ISymbolDocumentWriter infoDoc))
{
infoDocCache[instrInfo.Document] = infoDoc = moduleBuilder.DefineDocument(
instrInfo.Document.Url,
instrInfo.Document.LanguageGuid,
instrInfo.Document.LanguageVendorGuid,
instrInfo.Document.TypeGuid
);
}
il.MarkSequencePoint(infoDoc, instrInfo.StartLine, instrInfo.StartColumn, instrInfo.EndLine, instrInfo.EndColumn);
}
#endif
foreach (ExceptionHandler handler in def.Body.ExceptionHandlers)
{
if (checkTryEndEarly && handler.HandlerEnd == instr)
{
il.EndExceptionBlock();
}
if (handler.TryStart == instr)
{
il.BeginExceptionBlock();
}
else if (handler.FilterStart == instr)
{
il.BeginExceptFilterBlock();
}
else if (handler.HandlerStart == instr)
{
switch (handler.HandlerType)
{
case ExceptionHandlerType.Filter:
il.BeginCatchBlock(null);
break;
case ExceptionHandlerType.Catch:
il.BeginCatchBlock(handler.CatchType.ResolveReflection());
break;
case ExceptionHandlerType.Finally:
il.BeginFinallyBlock();
break;
case ExceptionHandlerType.Fault:
il.BeginFaultBlock();
break;
}
}
// Avoid duplicate endfilter / endfinally
if (handler.HandlerStart == instr.Next)
{
switch (handler.HandlerType)
{
case ExceptionHandlerType.Filter:
if (instr.OpCode == Mono.Cecil.Cil.OpCodes.Endfilter)
{
goto SkipEmit;
}
break;
case ExceptionHandlerType.Finally:
if (instr.OpCode == Mono.Cecil.Cil.OpCodes.Endfinally)
{
goto SkipEmit;
}
break;
}
}
}
if (instr.OpCode.OperandType == Mono.Cecil.Cil.OperandType.InlineNone)
{
il.Emit(_ReflOpCodes[instr.OpCode.Value]);
}
else
{
object operand = instr.Operand;
if (operand is Instruction[] targets)
{
operand = targets.Select(target => labelMap[target]).ToArray();
// Let's hope that the JIT treats the long forms identically to the short forms.
instr.OpCode = instr.OpCode.ToLongOp();
}
else if (operand is Instruction target)
{
operand = labelMap[target];
// Let's hope that the JIT treats the long forms identically to the short forms.
instr.OpCode = instr.OpCode.ToLongOp();
}
else if (operand is VariableDefinition var)
{
operand = locals[var.Index];
}
else if (operand is ParameterDefinition param)
{
operand = param.Index + paramOffs;
}
else if (operand is MemberReference mref)
{
MemberInfo member = mref.ResolveReflection();
operand = member;
#if !NETSTANDARD
if (mb != null && member != null)
{
Assembly asm = member.Module?.Assembly;
if (asm != null && !accessChecksIgnored.Contains(asm))
{
// while (member.DeclaringType != null)
// member = member.DeclaringType;
assemblyBuilder.SetCustomAttribute(new CustomAttributeBuilder(DynamicMethodDefinition.c_IgnoresAccessChecksToAttribute, new object[] {
asm.GetName().Name
}));
accessChecksIgnored.Add(asm);
}
}
#endif
}
else if (operand is CallSite csite)
{
if (dm != null)
{
// SignatureHelper in unmanaged contexts cannot be fully made use of for DynamicMethods.
_EmitCallSite(dm, il, _ReflOpCodes[instr.OpCode.Value], csite);
continue;
}
#if !NETSTANDARD
operand = csite.ResolveReflection(mb.Module);
#else
throw new NotSupportedException();
#endif
}
#if !NETSTANDARD
if (mb != null && operand is MethodBase called && called.DeclaringType == null)
{
// "Global" methods (f.e. DynamicMethods) cannot be tokenized.
if (instr.OpCode == Mono.Cecil.Cil.OpCodes.Call)
{
if (operand is DynamicMethod target)
{
// This should be heavily optimizable.
operand = _CreateMethodProxy(mb, target);
}
else
{
IntPtr ptr = called.GetLdftnPointer();
if (IntPtr.Size == 4)
{
il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, (int)ptr);
}
else
{
il.Emit(System.Reflection.Emit.OpCodes.Ldc_I8, (long)ptr);
}
il.Emit(System.Reflection.Emit.OpCodes.Conv_I);
instr.OpCode = Mono.Cecil.Cil.OpCodes.Calli;
operand = ((MethodReference)instr.Operand).ResolveReflectionSignature(mb.Module);
}
}
else
{
throw new NotSupportedException($"Unsupported global method operand on opcode {instr.OpCode.Name}");
}
}
#endif
if (operand == null)
{
throw new NullReferenceException($"Unexpected null in {def} @ {instr}");
}
il.DynEmit(_ReflOpCodes[instr.OpCode.Value], operand);
}
if (!checkTryEndEarly)
{
foreach (ExceptionHandler handler in def.Body.ExceptionHandlers)
{
if (handler.HandlerEnd == instr.Next)
{
il.EndExceptionBlock();
}
}
}
checkTryEndEarly = false;
continue;
SkipEmit:
checkTryEndEarly = true;
continue;
}
}
private static FastReflectionDelegate _CreateFastDelegate(MethodBase method, bool directBoxValueAccess = true)
{
DynamicMethodDefinition dmd = new DynamicMethodDefinition($"FastReflection<{method.GetID(simple: true)}>", typeof(object), _DynamicMethodDelegateArgs);
ILProcessor il = dmd.GetILProcessor();
ParameterInfo[] args = method.GetParameters();
bool generateLocalBoxValuePtr = true;
if (!method.IsStatic)
{
il.Emit(OpCodes.Ldarg_0);
if (method.DeclaringType.IsValueType)
{
il.Emit(OpCodes.Unbox_Any, method.DeclaringType);
}
}
for (int i = 0; i < args.Length; i++)
{
Type argType = args[i].ParameterType;
bool argIsByRef = argType.IsByRef;
if (argIsByRef)
{
argType = argType.GetElementType();
}
bool argIsValueType = argType.IsValueType;
if (argIsByRef && argIsValueType && !directBoxValueAccess)
{
// Used later when storing back the reference to the new box in the array.
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldc_I4, i);
}
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldc_I4, i);
if (argIsByRef && !argIsValueType)
{
il.Emit(OpCodes.Ldelema, typeof(object));
}
else
{
il.Emit(OpCodes.Ldelem_Ref);
if (argIsValueType)
{
if (!argIsByRef || !directBoxValueAccess)
{
// if !directBoxValueAccess, create a new box if required
il.Emit(OpCodes.Unbox_Any, argType);
if (argIsByRef)
{
// box back
il.Emit(OpCodes.Box, argType);
// store new box value address to local 0
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Unbox, argType);
if (generateLocalBoxValuePtr)
{
generateLocalBoxValuePtr = false;
dmd.Definition.Body.Variables.Add(new VariableDefinition(new PinnedType(new PointerType(dmd.Definition.Module.TypeSystem.Void))));
}
il.Emit(OpCodes.Stloc_0);
// arr and index set up already
il.Emit(OpCodes.Stelem_Ref);
// load address back to stack
il.Emit(OpCodes.Ldloc_0);
}
}
else
{
// if directBoxValueAccess, emit unbox (get value address)
il.Emit(OpCodes.Unbox, argType);
}
}
}
}
if (method.IsConstructor)
{
il.Emit(OpCodes.Newobj, method as ConstructorInfo);
}
else if (method.IsFinal || !method.IsVirtual)
{
il.Emit(OpCodes.Call, method as MethodInfo);
}
else
{
il.Emit(OpCodes.Callvirt, method as MethodInfo);
}
Type returnType = method.IsConstructor ? method.DeclaringType : (method as MethodInfo).ReturnType;
if (returnType != typeof(void))
{
if (returnType.IsValueType)
{
il.Emit(OpCodes.Box, returnType);
}
}
else
{
il.Emit(OpCodes.Ldnull);
}
il.Emit(OpCodes.Ret);
return((FastReflectionDelegate)dmd.Generate().CreateDelegate(typeof(FastReflectionDelegate)));
}
public static MethodInfo Generate(DynamicMethodDefinition dmd, object context = null) => _Postbuild((_Instance ?? (_Instance = new TSelf()))._Generate(dmd, context));
MethodInfo _IDMDGenerator.Generate(DynamicMethodDefinition dmd, object context)
{
return(_Postbuild(_Generate(dmd, context)));
}
protected abstract MethodInfo _Generate(DynamicMethodDefinition dmd, object context);
protected override MethodInfo _Generate(DynamicMethodDefinition dmd, object context)
{
MethodBase orig = dmd.OriginalMethod;
MethodDefinition def = dmd.Definition;
Type[] argTypes;
if (orig != null)
{
ParameterInfo[] args = orig.GetParameters();
int offs = 0;
if (!orig.IsStatic)
{
offs++;
argTypes = new Type[args.Length + 1];
argTypes[0] = orig.GetThisParamType();
}
else
{
argTypes = new Type[args.Length];
}
for (int i = 0; i < args.Length; i++)
{
argTypes[i + offs] = args[i].ParameterType;
}
}
else
{
int offs = 0;
if (def.HasThis)
{
offs++;
argTypes = new Type[def.Parameters.Count + 1];
Type type = def.DeclaringType.ResolveReflection();
if (type.IsValueType)
{
type = type.MakeByRefType();
}
argTypes[0] = type;
}
else
{
argTypes = new Type[def.Parameters.Count];
}
for (int i = 0; i < def.Parameters.Count; i++)
{
argTypes[i + offs] = def.Parameters[i].ParameterType.ResolveReflection();
}
}
DynamicMethod dm = new DynamicMethod(
$"DMD<{orig?.GetID(simple: true) ?? def.GetID(simple: true)}>",
typeof(void), argTypes,
orig?.DeclaringType ?? typeof(DynamicMethodDefinition),
true // If any random errors pop up, try setting this to false first.
);
// DynamicMethods don't officially "support" certain return types, such as ByRef types.
_DynamicMethod_returnType.SetValue(dm, (orig as MethodInfo)?.ReturnType ?? def.ReturnType?.ResolveReflection());
ILGenerator il = dm.GetILGenerator();
_DMDEmit.Generate(dmd, dm, il);
return(dm);
}
protected override MethodInfo _Generate(DynamicMethodDefinition dmd, object context)
{
MethodBase orig = dmd.OriginalMethod;
MethodDefinition def = dmd.Definition;
Type[] argTypes;
if (orig != null)
{
ParameterInfo[] args = orig.GetParameters();
int offs = 0;
if (!orig.IsStatic)
{
offs++;
argTypes = new Type[args.Length + 1];
argTypes[0] = orig.GetThisParamType();
}
else
{
argTypes = new Type[args.Length];
}
for (int i = 0; i < args.Length; i++)
{
argTypes[i + offs] = args[i].ParameterType;
}
}
else
{
int offs = 0;
if (def.HasThis)
{
offs++;
argTypes = new Type[def.Parameters.Count + 1];
Type type = def.DeclaringType.ResolveReflection();
if (type.IsValueType)
{
type = type.MakeByRefType();
}
argTypes[0] = type;
}
else
{
argTypes = new Type[def.Parameters.Count];
}
for (int i = 0; i < def.Parameters.Count; i++)
{
argTypes[i + offs] = def.Parameters[i].ParameterType.ResolveReflection();
}
}
string name = dmd.Name ?? $"DMD<{orig?.GetID(simple: true) ?? def.GetID(simple: true)}>";
Type retType = (orig as MethodInfo)?.ReturnType ?? def.ReturnType?.ResolveReflection();
MMDbgLog.Log($"new DynamicMethod: {retType} {name}({string.Join(",", argTypes.Select(type => type?.ToString()).ToArray())})");
if (orig != null)
{
MMDbgLog.Log($"orig: {(orig as MethodInfo)?.ReturnType?.ToString() ?? "NULL"} {orig.Name}({string.Join(",", orig.GetParameters().Select(arg => arg?.ParameterType?.ToString() ?? "NULL").ToArray())})");
}
MMDbgLog.Log($"mdef: {def.ReturnType?.ToString() ?? "NULL"} {name}({string.Join(",", def.Parameters.Select(arg => arg?.ParameterType?.ToString() ?? "NULL").ToArray())})");
DynamicMethod dm = new DynamicMethod(
name,
typeof(void), argTypes,
orig?.DeclaringType ?? dmd.OwnerType ?? typeof(DynamicMethodDefinition),
true // If any random errors pop up, try setting this to false first.
);
// DynamicMethods don't officially "support" certain return types, such as ByRef types.
_DynamicMethod_returnType.SetValue(dm, retType);
ILGenerator il = dm.GetILGenerator();
_DMDEmit.Generate(dmd, dm, il);
return(dm);
}
