public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "Call");
Debug.Assert(target.Signature.Length > 0
&& target.Signature[0] == target.Context.GetWellKnownType(WellKnownType.IntPtr));
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// Load all the arguments except the first one (IntPtr address)
for (int i = 1; i < target.Signature.Length; i++)
{
codeStream.EmitLdArg(i);
}
// now load IntPtr address
codeStream.EmitLdArg(0);
// Create a signature for the calli by copying the signature of the containing method
// while skipping the first argument
MethodSignature template = target.Signature;
TypeDesc returnType = template.ReturnType;
TypeDesc[] parameters = new TypeDesc[template.Length - 1];
for (int i = 1; i < template.Length; i++)
{
parameters[i - 1] = template[i];
}
var signature = new MethodSignature(template.Flags, 0, returnType, parameters);
codeStream.Emit(ILOpcode.calli, emitter.NewToken(signature));
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "EETypePtrOf");
Debug.Assert(target.Signature.Length == 0
&& target.Signature.ReturnType == target.OwningType);
Debug.Assert(target.Instantiation.Length == 1);
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
TypeSystemContext context = target.Context;
TypeDesc runtimeTypeHandleType = context.GetWellKnownType(WellKnownType.RuntimeTypeHandle);
MethodDesc getValueInternalMethod = runtimeTypeHandleType.GetKnownMethod("GetValueInternal", null);
MethodDesc eetypePtrCtorMethod = context.SystemModule
.GetKnownType("System", "EETypePtr")
.GetKnownMethod(".ctor", new MethodSignature(0, 0, context.GetWellKnownType(WellKnownType.Void),
new TypeDesc[] { context.GetWellKnownType(WellKnownType.IntPtr) }));
// The sequence of these instructions is important. JIT is able to optimize out
// the LDTOKEN+GetValueInternal call into "load EEType pointer onto the evaluation stack".
codeStream.Emit(ILOpcode.ldtoken, emitter.NewToken(context.GetSignatureVariable(0, true)));
codeStream.Emit(ILOpcode.call, emitter.NewToken(getValueInternalMethod));
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(eetypePtrCtorMethod));
codeStream.Emit(ILOpcode.ret);
return emitter.Link(target);
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
MetadataType startup = Context.GetHelperType("StartupCodeHelpers");
// Initialize command line args
string initArgsName = (Context.Target.OperatingSystem == TargetOS.Windows)
? "InitializeCommandLineArgsW"
: "InitializeCommandLineArgs";
MethodDesc initArgs = startup.GetKnownMethod(initArgsName, null);
codeStream.Emit(ILOpcode.ldarg_0); // argc
codeStream.Emit(ILOpcode.ldarg_1); // argv
codeStream.Emit(ILOpcode.call, emitter.NewToken(initArgs));
// Call program Main
if (_mainMethod.Signature.Length > 0)
{
codeStream.Emit(ILOpcode.call, emitter.NewToken(startup.GetKnownMethod("GetMainMethodArguments", null)));
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(_mainMethod));
if (_mainMethod.Signature.ReturnType.IsVoid)
{
codeStream.EmitLdc(0);
}
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public static MethodIL EmitIL(MethodDesc method)
{
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
MethodDesc typeLoadExceptionHelper = method.Context.GetHelperEntryPoint("ThrowHelpers", "ThrowTypeLoadException");
codeStream.EmitCallThrowHelper(emit, typeLoadExceptionHelper);
return emit.Link();
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "Call");
Debug.Assert(target.Signature.Length > 0
&& target.Signature[0] == target.Context.GetWellKnownType(WellKnownType.IntPtr));
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// Load all the arguments except the first one (IntPtr address)
for (int i = 1; i < target.Signature.Length; i++)
{
codeStream.EmitLdArg(i);
}
// now load IntPtr address
codeStream.EmitLdArg(0);
// Create a signature for the calli by copying the signature of the containing method
// while skipping the first argument
MethodSignature template = target.Signature;
TypeDesc returnType = template.ReturnType;
TypeDesc[] parameters = new TypeDesc[template.Length - 1];
for (int i = 1; i < template.Length; i++)
{
parameters[i - 1] = template[i];
}
var signature = new MethodSignature(template.Flags, 0, returnType, parameters);
bool useTransformedCalli = true;
if ((signature.Flags & MethodSignatureFlags.UnmanagedCallingConventionMask) != 0)
{
// Fat function pointer only ever exist for managed targets.
useTransformedCalli = false;
}
if (((MetadataType)target.OwningType).Name == "RawCalliHelper")
{
// RawCalliHelper doesn't need the transform.
useTransformedCalli = false;
}
if (useTransformedCalli)
EmitTransformedCalli(emitter, codeStream, signature);
else
codeStream.Emit(ILOpcode.calli, emitter.NewToken(signature));
codeStream.Emit(ILOpcode.ret);
return emitter.Link(target);
}
private static MethodIL EmitSizeOf(MethodDesc method)
{
Debug.Assert(method.Signature.IsStatic && method.Signature.Length == 0);
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.Emit(ILOpcode.sizeof_, emit.NewToken(context.GetSignatureVariable(0, method: true)));
codeStream.Emit(ILOpcode.ret);
return emit.Link(method);
}
private static MethodIL EmitSizeOf(MethodDesc method)
{
Debug.Assert(method.Signature.IsStatic && method.Signature.Length == 0);
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.Emit(ILOpcode.sizeof_, emit.NewToken(context.GetSignatureVariable(0, method: true)));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
private MethodIL EmitIL()
{
PInvokeILCodeStreams pInvokeILCodeStreams = new PInvokeILCodeStreams();
ILEmitter emitter = pInvokeILCodeStreams.Emitter;
ILCodeStream marshallingCodestream = pInvokeILCodeStreams.MarshallingCodeStream;
ILCodeStream unmarshallingCodestream = pInvokeILCodeStreams.UnmarshallingCodestream;
ILCodeStream cleanupCodestream = pInvokeILCodeStreams.CleanupCodeStream;
// Marshalling is wrapped in a finally block to guarantee cleanup
ILExceptionRegionBuilder tryFinally = emitter.NewFinallyRegion();
marshallingCodestream.BeginTry(tryFinally);
cleanupCodestream.BeginHandler(tryFinally);
// Marshal the arguments
for (int i = 0; i < _marshallers.Length; i++)
{
_marshallers[i].EmitMarshallingIL(pInvokeILCodeStreams);
}
// make the call
switch (_targetMethod)
{
case DelegateMarshallingMethodThunk delegateMethod:
EmitDelegateCall(delegateMethod, pInvokeILCodeStreams);
break;
case CalliMarshallingMethodThunk calliMethod:
EmitCalli(pInvokeILCodeStreams, calliMethod);
break;
default:
EmitPInvokeCall(pInvokeILCodeStreams);
break;
}
ILCodeLabel lReturn = emitter.NewCodeLabel();
unmarshallingCodestream.Emit(ILOpcode.leave, lReturn);
unmarshallingCodestream.EndTry(tryFinally);
cleanupCodestream.Emit(ILOpcode.endfinally);
cleanupCodestream.EndHandler(tryFinally);
cleanupCodestream.EmitLabel(lReturn);
_marshallers[0].LoadReturnValue(cleanupCodestream);
cleanupCodestream.Emit(ILOpcode.ret);
return(new PInvokeILStubMethodIL((ILStubMethodIL)emitter.Link(_targetMethod), IsStubRequired()));
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "CompareExchange" || target.Name == "Exchange");
//
// Find non-generic method to forward the generic method to.
//
int parameterCount = target.Signature.Length;
Debug.Assert(parameterCount == 3 || parameterCount == 2);
var objectType = target.Context.GetWellKnownType(WellKnownType.Object);
var parameters = new TypeDesc[parameterCount];
parameters[0] = objectType.MakeByRefType();
for (int i = 1; i < parameters.Length; i++)
{
parameters[i] = objectType;
}
MethodSignature nonGenericSignature = new MethodSignature(MethodSignatureFlags.Static, 0, objectType, parameters);
MethodDesc nonGenericMethod = target.OwningType.GetMethod(target.Name, nonGenericSignature);
// TODO: Better exception type. Should be: "CoreLib doesn't have a required thing in it".
if (nonGenericMethod == null)
{
throw new NotImplementedException();
}
//
// Emit the forwarder
//
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// Reload all arguments
for (int i = 0; i < parameterCount; i++)
{
codeStream.EmitLdArg(i);
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(nonGenericMethod));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link());
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
ILCodeLabel returnNullLabel = emitter.NewCodeLabel();
ILCodeLabel[] labels = new ILCodeLabel[(int)DelegateThunkCollection.MaxThunkKind];
for (DelegateThunkKind i = 0; i < DelegateThunkCollection.MaxThunkKind; i++)
{
MethodDesc thunk = _delegateInfo.Thunks[i];
if (thunk != null)
{
labels[(int)i] = emitter.NewCodeLabel();
}
else
{
labels[(int)i] = returnNullLabel;
}
}
codeStream.EmitLdArg(1);
codeStream.EmitSwitch(labels);
codeStream.Emit(ILOpcode.br, returnNullLabel);
for (DelegateThunkKind i = 0; i < DelegateThunkCollection.MaxThunkKind; i++)
{
MethodDesc thunk = _delegateInfo.Thunks[i];
if (thunk == null)
{
continue;
}
MethodDesc targetMethod = thunk.InstantiateAsOpen();
codeStream.EmitLabel(labels[(int)i]);
codeStream.Emit(ILOpcode.ldftn, emitter.NewToken(targetMethod));
codeStream.Emit(ILOpcode.ret);
}
codeStream.EmitLabel(returnNullLabel);
codeStream.EmitLdc(0);
codeStream.Emit(ILOpcode.conv_i);
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(this));
}
public override MethodIL EmitIL()
{
const DelegateThunkKind maxThunkKind = DelegateThunkKind.ObjectArrayThunk;
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
ILCodeLabel returnNullLabel = emitter.NewCodeLabel();
ILCodeLabel[] labels = new ILCodeLabel[(int)maxThunkKind];
for (DelegateThunkKind i = 0; i < maxThunkKind; i++)
{
MethodDesc thunk = _delegateInfo.Thunks[i];
if (thunk != null)
{
labels[(int)i] = emitter.NewCodeLabel();
}
else
{
labels[(int)i] = returnNullLabel;
}
}
codeStream.EmitLdArg(1);
codeStream.EmitSwitch(labels);
codeStream.Emit(ILOpcode.br, returnNullLabel);
for (DelegateThunkKind i = 0; i < maxThunkKind; i++)
{
MethodDesc thunk = _delegateInfo.Thunks[i];
if (thunk != null)
{
codeStream.EmitLabel(labels[(int)i]);
codeStream.Emit(ILOpcode.ldftn, emitter.NewToken(thunk.InstantiateAsOpen()));
codeStream.Emit(ILOpcode.ret);
}
}
codeStream.EmitLabel(returnNullLabel);
codeStream.EmitLdc(0);
codeStream.Emit(ILOpcode.conv_i);
codeStream.Emit(ILOpcode.ret);
return(emitter.Link());
}
public override MethodIL EmitIL()
{
Debug.Assert(Signature.Length > 0);
var emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// Load all arguments except delegate's 'this'
TypeDesc boxThisType = null;
TypeDesc[] parameters = new TypeDesc[Signature.Length - 1];
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
if (i == 0)
{
// Ensure that we're working with an object type by boxing it here.
// This is to allow delegates which are generic over thier first parameter
// to have valid code in their thunk.
if (Signature[i].IsSignatureVariable)
{
boxThisType = Signature[i];
codeStream.Emit(ILOpcode.box, emitter.NewToken(boxThisType));
}
}
else
{
parameters[i - 1] = Signature[i];
}
}
// Call a helper to get the actual method target
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
if (boxThisType != null)
{
codeStream.Emit(ILOpcode.box, emitter.NewToken(boxThisType));
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(SystemDelegateType.GetKnownMethod("GetActualTargetFunctionPointer", null)));
MethodSignature targetSignature = new MethodSignature(0, 0, Signature.ReturnType, parameters);
codeStream.Emit(ILOpcode.calli, emitter.NewToken(targetSignature));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(this));
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(_target));
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(_target));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link());
}
private MethodIL EmitIL()
{
if (!_importMetadata.Flags.PreserveSig)
{
throw new NotSupportedException();
}
if (_targetMethod.HasCustomAttribute("System.Runtime.InteropServices", "LCIDConversionAttribute"))
{
throw new NotSupportedException();
}
PInvokeILCodeStreams pInvokeILCodeStreams = new PInvokeILCodeStreams();
ILEmitter emitter = pInvokeILCodeStreams.Emitter;
ILCodeStream marshallingCodestream = pInvokeILCodeStreams.MarshallingCodeStream;
ILCodeStream unmarshallingCodestream = pInvokeILCodeStreams.UnmarshallingCodestream;
ILCodeStream cleanupCodestream = pInvokeILCodeStreams.CleanupCodeStream;
// Marshalling is wrapped in a finally block to guarantee cleanup
ILExceptionRegionBuilder tryFinally = emitter.NewFinallyRegion();
marshallingCodestream.BeginTry(tryFinally);
cleanupCodestream.BeginHandler(tryFinally);
// Marshal the arguments
for (int i = 0; i < _marshallers.Length; i++)
{
_marshallers[i].EmitMarshallingIL(pInvokeILCodeStreams);
}
EmitPInvokeCall(pInvokeILCodeStreams);
ILCodeLabel lReturn = emitter.NewCodeLabel();
unmarshallingCodestream.Emit(ILOpcode.leave, lReturn);
unmarshallingCodestream.EndTry(tryFinally);
cleanupCodestream.Emit(ILOpcode.endfinally);
cleanupCodestream.EndHandler(tryFinally);
cleanupCodestream.EmitLabel(lReturn);
_marshallers[0].LoadReturnValue(cleanupCodestream);
cleanupCodestream.Emit(ILOpcode.ret);
return(new PInvokeILStubMethodIL((ILStubMethodIL)emitter.Link(_targetMethod)));
}
public override MethodIL EmitIL()
{
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
MethodDesc classlibHelper = Context.GetHelperEntryPoint("ReflectionHelpers", "GetExecutingAssembly");
// Use the global module type as "a type from the assembly that has metadata"
// Our reflection policy always makes sure this has metadata.
MetadataType moduleType = ((ModuleDesc)ExecutingAssembly).GetGlobalModuleType();
codeStream.Emit(ILOpcode.ldtoken, emit.NewToken(moduleType));
codeStream.Emit(ILOpcode.call, emit.NewToken(classlibHelper));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(this));
}
private static MethodIL EmitInitBlock(MethodDesc method, bool unaligned)
{
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.EmitLdArg(2);
if (unaligned)
{
codeStream.EmitUnaligned();
}
codeStream.Emit(ILOpcode.initblk);
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Signature.Length == 1);
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
TypeSystemContext context = target.Context;
TypeDesc runtimeTypeHandleType = context.GetWellKnownType(WellKnownType.RuntimeTypeHandle);
Debug.Assert(target.Signature.ReturnType == runtimeTypeHandleType);
if (context.SupportsCanon)
{
ILCodeLabel lNotCanon = emitter.NewCodeLabel();
codeStream.Emit(ILOpcode.ldarg_0);
codeStream.EmitLdc((int)CanonTypeKind.NormalCanon);
codeStream.Emit(ILOpcode.bne_un, lNotCanon);
codeStream.Emit(ILOpcode.ldtoken, emitter.NewToken(context.CanonType));
codeStream.Emit(ILOpcode.ret);
codeStream.EmitLabel(lNotCanon);
// We're not conditioning this on SupportsUniversalCanon because the runtime type loader
// does a lot of comparisons against UniversalCanon and not having a RuntimeTypeHandle
// for it makes these checks awkward.
// Would be nice if we didn't have to emit the EEType if universal canonical code wasn't enabled
// at the time of compilation.
ILCodeLabel lNotUniversalCanon = emitter.NewCodeLabel();
codeStream.Emit(ILOpcode.ldarg_0);
codeStream.EmitLdc((int)CanonTypeKind.UniversalCanon);
codeStream.Emit(ILOpcode.bne_un, lNotUniversalCanon);
codeStream.Emit(ILOpcode.ldtoken, emitter.NewToken(context.UniversalCanonType));
codeStream.Emit(ILOpcode.ret);
codeStream.EmitLabel(lNotUniversalCanon);
}
ILLocalVariable vNullTypeHandle = emitter.NewLocal(runtimeTypeHandleType);
codeStream.EmitLdLoca(vNullTypeHandle);
codeStream.Emit(ILOpcode.initobj, emitter.NewToken(runtimeTypeHandleType));
codeStream.EmitLdLoc(vNullTypeHandle);
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(target));
}
private static MethodIL EmitComparerAndEqualityComparerCreateCommon(MethodDesc methodBeingGenerated, string flavor, string interfaceName)
{
// We expect the method to be fully instantiated
Debug.Assert(!methodBeingGenerated.IsTypicalMethodDefinition);
TypeDesc owningType = methodBeingGenerated.OwningType;
TypeDesc comparedType = owningType.Instantiation[0];
// If the type is canonical, we use the default implementation provided by the class library.
// This will rely on the type loader to load the proper type at runtime.
if (comparedType.IsCanonicalSubtype(CanonicalFormKind.Any))
{
return(null);
}
TypeDesc comparerType = GetComparerForType(comparedType, flavor, interfaceName);
Debug.Assert(comparerType != null);
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
FieldDesc defaultField = owningType.GetKnownField("s_default");
TypeSystemContext context = comparerType.Context;
TypeDesc objectType = context.GetWellKnownType(WellKnownType.Object);
MethodDesc compareExchangeObject = context.SystemModule.
GetKnownType("System.Threading", "Interlocked").
GetKnownMethod("CompareExchange",
new MethodSignature(
MethodSignatureFlags.Static,
genericParameterCount: 0,
returnType: objectType,
parameters: new TypeDesc[] { objectType.MakeByRefType(), objectType, objectType }));
codeStream.Emit(ILOpcode.ldsflda, emitter.NewToken(defaultField));
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(comparerType.GetParameterlessConstructor()));
codeStream.Emit(ILOpcode.ldnull);
codeStream.Emit(ILOpcode.call, emitter.NewToken(compareExchangeObject));
codeStream.Emit(ILOpcode.pop);
codeStream.Emit(ILOpcode.ldsfld, emitter.NewToken(defaultField));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(methodBeingGenerated));
}
//TODO: https://github.com/dotnet/corert/issues/2675
// This exception messages need to localized
// TODO: Log as warning
public static MethodIL EmitExceptionBody(string message, MethodDesc method)
{
ILEmitter emitter = new ILEmitter();
TypeSystemContext context = method.Context;
MethodSignature ctorSignature = new MethodSignature(0, 0, context.GetWellKnownType(WellKnownType.Void),
new TypeDesc[] { context.GetWellKnownType(WellKnownType.String) });
MethodDesc exceptionCtor = method.Context.GetWellKnownType(WellKnownType.Exception).GetKnownMethod(".ctor", ctorSignature);
ILCodeStream codeStream = emitter.NewCodeStream();
codeStream.Emit(ILOpcode.ldstr, emitter.NewToken(message));
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(exceptionCtor));
codeStream.Emit(ILOpcode.throw_);
codeStream.Emit(ILOpcode.ret);
return(new PInvokeILStubMethodIL((ILStubMethodIL)emitter.Link(method), true, null));
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "AddrOf");
Debug.Assert(target.Signature.Length == 1
&& target.Signature.ReturnType == target.Context.GetWellKnownType(WellKnownType.IntPtr));
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
codeStream.EmitLdArg(0);
var fptrField = target.Context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType.GetKnownField("m_extraFunctionPointerOrData");
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(fptrField));
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
private static MethodIL EmitCopy(MethodDesc method)
{
Debug.Assert(method.Signature.IsStatic && method.Signature.Length == 2);
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
ILToken token = emit.NewToken(context.GetSignatureVariable(0, method: true));
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.Emit(ILOpcode.ldobj, token);
codeStream.Emit(ILOpcode.stobj, token);
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
public static MethodIL EmitIL(MethodDesc method)
{
Debug.Assert(((MetadataType)method.OwningType).Name == "MemoryMarshal");
string methodName = method.Name;
if (methodName == "GetArrayDataReference")
{
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldflda, emit.NewToken(method.Context.SystemModule.GetKnownType("System.Runtime.CompilerServices", "RawArrayData").GetField("Data")));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
// unknown method
return(null);
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "AddrOf");
Debug.Assert(target.Signature.Length == 1 &&
target.Signature.ReturnType == target.Context.GetWellKnownType(WellKnownType.IntPtr));
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
codeStream.EmitLdArg(0);
var fptrField = target.Context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType.GetKnownField("m_extraFunctionPointerOrData");
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(fptrField));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link());
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "Call" || target.Name == "StdCall");
Debug.Assert(target.Signature.Length > 0 &&
target.Signature[0] == target.Context.GetWellKnownType(WellKnownType.IntPtr));
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// Load all the arguments except the first one (IntPtr address)
for (int i = 1; i < target.Signature.Length; i++)
{
codeStream.EmitLdArg(i);
}
// now load IntPtr address
codeStream.EmitLdArg(0);
// Create a signature for the calli by copying the signature of the containing method
// while skipping the first argument
MethodSignature template = target.Signature;
TypeDesc returnType = template.ReturnType;
TypeDesc[] parameters = new TypeDesc[template.Length - 1];
for (int i = 1; i < template.Length; i++)
{
parameters[i - 1] = template[i];
}
MethodSignatureFlags flags = template.Flags;
if (target.Name == "StdCall")
{
flags |= MethodSignatureFlags.UnmanagedCallingConventionStdCall;
}
var signature = new MethodSignature(flags, 0, returnType, parameters);
codeStream.Emit(ILOpcode.calli, emitter.NewToken(signature));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(target));
}
public static MethodIL EmitIL(MethodDesc method)
{
Debug.Assert(((MetadataType)method.OwningType).Name == "Stream");
bool isRead = method.Name == "HasOverriddenBeginEndRead";
if (!isRead && method.Name != "HasOverriddenBeginEndWrite")
{
return(null);
}
TypeDesc streamClass = method.OwningType;
MethodDesc beginMethod = streamClass.GetMethod(isRead ? "BeginRead" : "BeginWrite", null);
MethodDesc endMethod = streamClass.GetMethod(isRead ? "EndRead" : "EndWrite", null);
ILEmitter emitter = new ILEmitter();
ILCodeStream codestream = emitter.NewCodeStream();
ILCodeLabel lOverriden = emitter.NewCodeLabel();
ILToken beginMethodToken = emitter.NewToken(beginMethod);
codestream.EmitLdArg(0);
codestream.Emit(ILOpcode.ldvirtftn, beginMethodToken);
codestream.Emit(ILOpcode.ldftn, beginMethodToken);
codestream.Emit(ILOpcode.bne_un, lOverriden);
ILToken endMethodToken = emitter.NewToken(endMethod);
codestream.EmitLdArg(0);
codestream.Emit(ILOpcode.ldvirtftn, endMethodToken);
codestream.Emit(ILOpcode.ldftn, endMethodToken);
codestream.Emit(ILOpcode.bne_un, lOverriden);
codestream.EmitLdc(0);
codestream.Emit(ILOpcode.ret);
codestream.EmitLabel(lOverriden);
codestream.EmitLdc(1);
codestream.Emit(ILOpcode.ret);
return(emitter.Link(method));
}
private MethodIL EmitIL()
{
switch (_method.Kind)
{
case ArrayMethodKind.Get:
case ArrayMethodKind.Set:
case ArrayMethodKind.AddressWithHiddenArg:
EmitILForAccessor();
break;
case ArrayMethodKind.Ctor:
// .ctor is implemented as a JIT helper and the JIT shouldn't be asking for the IL.
default:
// Asking for anything else is invalid.
throw new InvalidOperationException();
}
return(_emitter.Link(_method));
}
private MethodIL EmitIL()
{
PInvokeILCodeStreams pInvokeILCodeStreams = new PInvokeILCodeStreams();
ILEmitter emitter = pInvokeILCodeStreams.Emitter;
ILCodeStream unmarshallingCodestream = pInvokeILCodeStreams.UnmarshallingCodestream;
// Marshal the arguments
for (int i = 0; i < _marshallers.Length; i++)
{
_marshallers[i].EmitMarshallingIL(pInvokeILCodeStreams);
}
EmitPInvokeCall(pInvokeILCodeStreams);
_marshallers[0].LoadReturnValue(unmarshallingCodestream);
unmarshallingCodestream.Emit(ILOpcode.ret);
return(new PInvokeILStubMethodIL((ILStubMethodIL)emitter.Link(_targetMethod), IsStubRequired()));
}
public static MethodIL EmitIL(MethodDesc method)
{
Debug.Assert(method.OwningType.IsDelegate);
Debug.Assert(method.IsRuntimeImplemented);
if (method.Name == "BeginInvoke" || method.Name == "EndInvoke")
{
// BeginInvoke and EndInvoke are not supported on .NET Core
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
MethodDesc notSupportedExceptionHelper = method.Context.GetHelperEntryPoint("ThrowHelpers", "ThrowPlatformNotSupportedException");
codeStream.EmitCallThrowHelper(emit, notSupportedExceptionHelper);
return(emit.Link(method));
}
if (method.Name == ".ctor")
{
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
TypeDesc delegateType = context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType;
MethodDesc objectCtorMethod = context.GetWellKnownType(WellKnownType.Object).GetDefaultConstructor();
FieldDesc functionPointerField = delegateType.GetKnownField("m_functionPointer");
FieldDesc firstParameterField = delegateType.GetKnownField("m_firstParameter");
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.call, emit.NewToken(objectCtorMethod));
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.Emit(ILOpcode.stfld, emit.NewToken(firstParameterField));
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(2);
codeStream.Emit(ILOpcode.stfld, emit.NewToken(functionPointerField));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
return(null);
}
public static MethodIL EmitIL(MethodDesc method)
{
Debug.Assert(method.OwningType.IsDelegate);
Debug.Assert(method.IsRuntimeImplemented);
if (method.Name == "BeginInvoke" || method.Name == "EndInvoke")
{
// BeginInvoke and EndInvoke are not supported on .NET Core
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
MethodDesc notSupportedExceptionHelper = method.Context.GetHelperEntryPoint("ThrowHelpers", "ThrowPlatformNotSupportedException");
codeStream.EmitCallThrowHelper(emit, notSupportedExceptionHelper);
return emit.Link(method);
}
if (method.Name == ".ctor")
{
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
TypeDesc delegateType = context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType;
MethodDesc objectCtorMethod = context.GetWellKnownType(WellKnownType.Object).GetDefaultConstructor();
FieldDesc functionPointerField = delegateType.GetKnownField("m_functionPointer");
FieldDesc firstParameterField = delegateType.GetKnownField("m_firstParameter");
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.call, emit.NewToken(objectCtorMethod));
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.Emit(ILOpcode.stfld, emit.NewToken(firstParameterField));
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(2);
codeStream.Emit(ILOpcode.stfld, emit.NewToken(functionPointerField));
codeStream.Emit(ILOpcode.ret);
return emit.Link(method);
}
return null;
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "CompareExchange" || target.Name == "Exchange");
//
// Find non-generic method to forward the generic method to.
//
int parameterCount = target.Signature.Length;
Debug.Assert(parameterCount == 3 || parameterCount == 2);
var objectType = target.Context.GetWellKnownType(WellKnownType.Object);
var parameters = new TypeDesc[parameterCount];
parameters[0] = objectType.MakeByRefType();
for (int i = 1; i < parameters.Length; i++)
parameters[i] = objectType;
MethodSignature nonGenericSignature = new MethodSignature(MethodSignatureFlags.Static, 0, objectType, parameters);
MethodDesc nonGenericMethod = target.OwningType.GetMethod(target.Name, nonGenericSignature);
// TODO: Better exception type. Should be: "CoreLib doesn't have a required thing in it".
if (nonGenericMethod == null)
throw new NotImplementedException();
//
// Emit the forwarder
//
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// Reload all arguments
for (int i = 0; i < parameterCount; i++)
codeStream.EmitLdArg(i);
codeStream.Emit(ILOpcode.call, emitter.NewToken(nonGenericMethod));
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
public static MethodIL EmitIL(MethodDesc method)
{
Debug.Assert(method.OwningType.IsDelegate);
Debug.Assert(method.IsRuntimeImplemented);
if (method.Name == "BeginInvoke" || method.Name == "EndInvoke")
{
// BeginInvoke and EndInvoke are not supported on .NET Core
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
MethodDesc notSupportedExceptionHelper = method.Context.GetHelperEntryPoint("ThrowHelpers", "ThrowPlatformNotSupportedException");
codeStream.EmitCallThrowHelper(emit, notSupportedExceptionHelper);
return emit.Link(method);
}
if (method.Name == ".ctor")
{
// TODO: this should be an assert that codegen never asks for this.
// This is just a workaround for https://github.com/dotnet/corert/issues/2102
// The code below is making a wild guess that we're creating a closed
// instance delegate. Without shared generics, this should only happen
// for virtual method (so we're fine there). With shared generics, this can
// happen for anything and might be pretty wrong.
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
TypeDesc delegateType = context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType;
MethodDesc initializeMethod = delegateType.GetKnownMethod("InitializeClosedInstanceSlow", null);
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.EmitLdArg(2);
codeStream.Emit(ILOpcode.call, emit.NewToken(initializeMethod));
codeStream.Emit(ILOpcode.ret);
return emit.Link(method);
}
return null;
}
public static MethodIL EmitIL(MethodDesc method)
{
Debug.Assert(method.OwningType.IsDelegate);
Debug.Assert(method.IsRuntimeImplemented);
if (method.Name == "BeginInvoke" || method.Name == "EndInvoke")
{
// BeginInvoke and EndInvoke are not supported on .NET Core
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
MethodDesc notSupportedExceptionHelper = method.Context.GetHelperEntryPoint("ThrowHelpers", "ThrowPlatformNotSupportedException");
codeStream.EmitCallThrowHelper(emit, notSupportedExceptionHelper);
return(emit.Link(method));
}
if (method.Name == ".ctor")
{
// TODO: this should be an assert that codegen never asks for this.
// This is just a workaround for https://github.com/dotnet/corert/issues/2102
// The code below is making a wild guess that we're creating a closed
// instance delegate. Without shared generics, this should only happen
// for virtual method (so we're fine there). With shared generics, this can
// happen for anything and might be pretty wrong.
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
TypeDesc delegateType = context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType;
MethodDesc initializeMethod = delegateType.GetKnownMethod("InitializeClosedInstanceSlow", null);
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.EmitLdArg(2);
codeStream.Emit(ILOpcode.call, emit.NewToken(initializeMethod));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
return(null);
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
ILLocalVariable returnValue = emitter.NewLocal(Context.GetWellKnownType(WellKnownType.Int32));
TypeDesc startup = Context.SystemModule.GetType("Internal.Runtime.CompilerHelpers", "StartupCodeHelpers");
codeStream.Emit(ILOpcode.call, emitter.NewToken(startup.GetMethod("Initialize", null)));
// Initialize command line args
// TODO: For Windows change to "InitializeCommandLineArgsW" with wmain wchar_t change.
string initArgsName = (Context.Target.OperatingSystem == TargetOS.Windows)
? "InitializeCommandLineArgs"
: "InitializeCommandLineArgs";
MethodDesc initArgs = startup.GetMethod(initArgsName, null);
codeStream.Emit(ILOpcode.ldarg_0); // argc
codeStream.Emit(ILOpcode.ldarg_1); // argv
codeStream.Emit(ILOpcode.call, emitter.NewToken(initArgs));
// Call program Main
if (_mainMethod.Signature.Length > 0)
{
TypeDesc environ = Context.SystemModule.GetType("System", "Environment");
codeStream.Emit(ILOpcode.call, emitter.NewToken(environ.GetMethod("GetCommandLineArgs", null)));
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(_mainMethod));
if (_mainMethod.Signature.ReturnType.IsVoid)
{
codeStream.EmitLdc(0);
}
codeStream.EmitStLoc(returnValue);
codeStream.Emit(ILOpcode.call, emitter.NewToken(startup.GetMethod("Shutdown", null)));
codeStream.EmitLdLoc(returnValue);
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "CreateInstanceIntrinsic");
Debug.Assert(target.Instantiation.Length == 1);
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// TODO: This won't work for shared generics
// https://github.com/dotnet/corert/issues/368
TypeDesc type = target.Instantiation[0];
MethodDesc ctorMethod = type.GetDefaultConstructor();
if (ctorMethod == null)
{
if (type.IsValueType)
{
var loc = emitter.NewLocal(type);
codeStream.EmitLdLoca(loc);
codeStream.Emit(ILOpcode.initobj, emitter.NewToken(type));
codeStream.EmitLdLoc(loc);
}
else
{
var missingCtor = type.Context.SystemModule.GetKnownType("System", "Activator").
GetNestedType("ClassWithMissingConstructor").GetDefaultConstructor();
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(missingCtor));
}
}
else
{
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(ctorMethod));
}
codeStream.Emit(ILOpcode.ret);
return emitter.Link(target);
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "CreateInstanceIntrinsic");
Debug.Assert(target.Instantiation.Length == 1);
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
// TODO: This won't work for shared generics
// https://github.com/dotnet/corert/issues/368
TypeDesc type = target.Instantiation[0];
MethodDesc ctorMethod = type.GetDefaultConstructor();
if (ctorMethod == null)
{
if (type.IsValueType)
{
var loc = emitter.NewLocal(type);
codeStream.EmitLdLoca(loc);
codeStream.Emit(ILOpcode.initobj, emitter.NewToken(type));
codeStream.EmitLdLoc(loc);
}
else
{
var missingCtor = type.Context.SystemModule.GetKnownType("System", "Activator").
GetNestedType("ClassWithMissingConstructor").GetDefaultConstructor();
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(missingCtor));
}
}
else
{
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(ctorMethod));
}
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(target));
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// InstantiateAsOpen covers the weird case of generic enums
TypeDesc owningTypeAsOpen = _owningType.InstantiateAsOpen();
ILCodeLabel lNotEqual = emitter.NewCodeLabel();
// if (!(obj is {enumtype}))
// return false;
codeStream.EmitLdArg(1);
codeStream.Emit(ILOpcode.isinst, emitter.NewToken(owningTypeAsOpen));
codeStream.Emit(ILOpcode.dup);
codeStream.Emit(ILOpcode.brfalse, lNotEqual);
// return ({underlyingtype})this == ({underlyingtype})obj;
// PREFER: ILOpcode.unbox, but the codegen for that is pretty bad
codeStream.Emit(ILOpcode.ldflda, emitter.NewToken(Context.GetWellKnownType(WellKnownType.Object).GetKnownField("m_pEEType")));
codeStream.EmitLdc(Context.Target.PointerSize);
codeStream.Emit(ILOpcode.add);
codeStream.EmitLdInd(owningTypeAsOpen);
codeStream.EmitLdArg(0);
codeStream.EmitLdInd(owningTypeAsOpen);
codeStream.Emit(ILOpcode.ceq);
codeStream.Emit(ILOpcode.ret);
codeStream.EmitLabel(lNotEqual);
codeStream.Emit(ILOpcode.pop);
codeStream.EmitLdc(0);
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(this));
}
private MethodIL EmitCleanupIL(PInvokeILCodeStreams pInvokeILCodeStreams)
{
ILEmitter emitter = pInvokeILCodeStreams.Emitter;
ILCodeStream codeStream = pInvokeILCodeStreams.MarshallingCodeStream;
IEnumerator <FieldDesc> nativeEnumerator = NativeType.GetFields().GetEnumerator();
for (int i = 0; i < _marshallers.Length; i++)
{
bool valid = nativeEnumerator.MoveNext();
Debug.Assert(valid);
if (_marshallers[i].CleanupRequired)
{
LoadFieldValueFromArg(0, nativeEnumerator.Current, pInvokeILCodeStreams);
_marshallers[i].EmitElementCleanup(codeStream, emitter);
}
}
pInvokeILCodeStreams.UnmarshallingCodestream.Emit(ILOpcode.ret);
return(emitter.Link(this));
}
public static MethodIL EmitIL(
#if READYTORUN
ILCompiler.CompilationModuleGroup compilationModuleGroup,
#endif // READYTORUN
MethodDesc method)
{
Debug.Assert(((MetadataType)method.OwningType).Name == "Interlocked");
if (method.HasInstantiation && method.Name == "CompareExchange")
{
#if READYTORUN
// Check to see if the tokens needed to describe the CompareExchange are naturally present within
// the compilation. The current implementation of stable tokens used by cross module inlining is not
// compatible with rewriting the IL of a compiler generated intrinsic. Fortunately, it turns out
// that the managed implementation of this intrinsic is correct, just a few more IL instructions.
if (compilationModuleGroup.ContainsType(method.OwningType))
#endif // READYTORUN
{
TypeDesc objectType = method.Context.GetWellKnownType(WellKnownType.Object);
MethodDesc compareExchangeObject = method.OwningType.GetKnownMethod("CompareExchange",
new MethodSignature(
MethodSignatureFlags.Static,
genericParameterCount: 0,
returnType: objectType,
parameters: new TypeDesc[] { objectType.MakeByRefType(), objectType, objectType }));
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
codeStream.EmitLdArg(1);
codeStream.EmitLdArg(2);
codeStream.Emit(ILOpcode.call, emit.NewToken(compareExchangeObject));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
}
return(null);
}
public override MethodIL EmitIL()
{
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
Debug.Assert(Signature[0] == _helperMethod.Signature[0]);
codeStream.EmitLdArg(0);
Debug.Assert(_helperMethod.Signature[1].IsString);
codeStream.Emit(ILOpcode.ldstr, emit.NewToken(DefaultAssemblyName));
for (int i = 2; i < _helperMethod.Signature.Length; i++)
{
// The helper method could be expecting more arguments than what we have - check for that
// The thunk represents one of the 6 possible overloads:
// (String), (String, bool), (String, bool, bool)
// (String, Func<...>, Func<...>), (String, Func<...>, Func<...>, bool), (String, Func<...>, Func<...>, bool, bool)
// We only need 2 helpers to support all 6 overloads. The default value for the bools is false.
if (i - 1 < Signature.Length)
{
// Pass user's parameter
Debug.Assert(_helperMethod.Signature[i] == Signature[i - 1]);
codeStream.EmitLdArg(i - 1);
}
else
{
// Pass a default value
Debug.Assert(_helperMethod.Signature[i].IsWellKnownType(WellKnownType.Boolean));
codeStream.EmitLdc(0);
}
}
codeStream.Emit(ILOpcode.call, emit.NewToken(_helperMethod));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(this));
}
private static MethodIL EmitReadWrite(MethodDesc method, bool write, bool unaligned = false)
{
Debug.Assert(method.Signature.IsStatic && method.Signature.Length == (write ? 2 : 1));
TypeSystemContext context = method.Context;
ILEmitter emit = new ILEmitter();
ILCodeStream codeStream = emit.NewCodeStream();
codeStream.EmitLdArg(0);
if (write)
{
codeStream.EmitLdArg(1);
}
if (unaligned)
{
codeStream.EmitUnaligned();
}
codeStream.Emit(write ? ILOpcode.stobj : ILOpcode.ldobj,
emit.NewToken(context.GetSignatureVariable(0, method: true)));
codeStream.Emit(ILOpcode.ret);
return(emit.Link(method));
}
public override MethodIL EmitIL()
{
TypeDesc[] targetMethodParameters = new TypeDesc[Signature.Length + 1];
targetMethodParameters[0] = Context.GetWellKnownType(WellKnownType.Object);
for (int i = 0; i < Signature.Length; i++)
{
targetMethodParameters[i + 1] = Signature[i];
}
var targetMethodSignature = new MethodSignature(
Signature.Flags | MethodSignatureFlags.Static, 0, Signature.ReturnType, targetMethodParameters);
var emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// Load the stored 'this'
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(HelperObjectField));
// Load all arguments except 'this'
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
// Indirectly call the delegate target static method.
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(ExtraFunctionPointerOrDataField));
EmitTransformedCalli(emitter, codeStream, targetMethodSignature);
//codeStream.Emit(ILOpcode.calli, emitter.NewToken(targetMethodSignature));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(this));
}
public override MethodIL EmitIL()
{
// Target has the same signature as the Invoke method, except it's static.
MethodSignatureBuilder builder = new MethodSignatureBuilder(Signature);
builder.Flags = Signature.Flags | MethodSignatureFlags.Static;
var emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// Load all arguments except 'this'
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
// Indirectly call the delegate target static method.
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(ExtraFunctionPointerOrDataField));
codeStream.Emit(ILOpcode.calli, emitter.NewToken(builder.ToSignature()));
codeStream.Emit(ILOpcode.ret);
return(emitter.Link(this));
}
public static MethodIL EmitIL(MethodDesc target)
{
Debug.Assert(target.Name == "AddrOf");
Debug.Assert(target.Signature.Length == 1
&& target.Signature.ReturnType == target.Context.GetWellKnownType(WellKnownType.IntPtr));
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
codeStream.EmitLdArg(0);
var fptrField = target.Context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType.GetField("m_extraFunctionPointerOrData");
if (fptrField == null)
{
// TODO: Better exception type. Should be: "CoreLib doesn't have a required thing in it".
throw new NotImplementedException();
}
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(fptrField));
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
ModuleDesc developerExperience = Context.ResolveAssembly(new AssemblyName("System.Private.DeveloperExperience.Console"), false);
if (developerExperience != null)
{
TypeDesc connectorType = developerExperience.GetKnownType("Internal.DeveloperExperience", "DeveloperExperienceConnectorConsole");
MethodDesc initializeMethod = connectorType.GetKnownMethod("Initialize", null);
codeStream.Emit(ILOpcode.call, emitter.NewToken(initializeMethod));
}
MetadataType startup = Context.GetHelperType("StartupCodeHelpers");
// Initialize command line args if the class library supports this
string initArgsName = (Context.Target.OperatingSystem == TargetOS.Windows)
? "InitializeCommandLineArgsW"
: "InitializeCommandLineArgs";
MethodDesc initArgs = startup.GetMethod(initArgsName, null);
if (initArgs != null)
{
codeStream.Emit(ILOpcode.ldarg_0); // argc
codeStream.Emit(ILOpcode.ldarg_1); // argv
codeStream.Emit(ILOpcode.call, emitter.NewToken(initArgs));
}
// Call program Main
if (_mainMethod.Signature.Length > 0)
{
// TODO: better exception
if (initArgs == null)
throw new Exception("Main() has parameters, but the class library doesn't support them");
codeStream.Emit(ILOpcode.call, emitter.NewToken(startup.GetKnownMethod("GetMainMethodArguments", null)));
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(_mainMethod));
if (_mainMethod.Signature.ReturnType.IsVoid)
{
codeStream.EmitLdc(0);
}
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public static MethodIL EmitIL(MethodDesc method)
{
if (!RequiresMarshalling(method))
return null;
try
{
return new PInvokeMarshallingILEmitter(method).EmitIL();
}
catch (NotSupportedException)
{
ILEmitter emitter = new ILEmitter();
string message = "Method '" + method.ToString() +
"' requires non-trivial marshalling that is not yet supported by this compiler.";
TypeSystemContext context = method.Context;
MethodSignature ctorSignature = new MethodSignature(0, 0, context.GetWellKnownType(WellKnownType.Void),
new TypeDesc[] { context.GetWellKnownType(WellKnownType.String) });
MethodDesc exceptionCtor = method.Context.GetWellKnownType(WellKnownType.Exception).GetKnownMethod(".ctor", ctorSignature);
ILCodeStream codeStream = emitter.NewCodeStream();
codeStream.Emit(ILOpcode.ldstr, emitter.NewToken(message));
codeStream.Emit(ILOpcode.newobj, emitter.NewToken(exceptionCtor));
codeStream.Emit(ILOpcode.throw_);
codeStream.Emit(ILOpcode.ret);
return emitter.Link();
}
}
public MethodIL EmitIL()
{
MethodSignature targetMethodSignature = _targetMethod.Signature;
// We have 4 code streams:
// - _marshallingCodeStream is used to convert each argument into a native type and
// store that into the local
// - callsiteSetupCodeStream is used to used to load each previously generated local
// and call the actual target native method.
// - _returnValueMarshallingCodeStream is used to convert the native return value
// to managed one.
// - _unmarshallingCodestream is used to propagate [out] native arguments values to
// managed ones.
_emitter = new ILEmitter();
_marshallingCodeStream = _emitter.NewCodeStream();
ILCodeStream callsiteSetupCodeStream = _emitter.NewCodeStream();
_returnValueMarshallingCodeStream = _emitter.NewCodeStream();
_unmarshallingCodestream = _emitter.NewCodeStream();
TypeDesc[] nativeParameterTypes = new TypeDesc[targetMethodSignature.Length];
//
// Parameter marshalling
//
//
// Convert each argument to something we can pass to native and store it in a local.
// Then load the local in the second code stream.
//
for (int i = 0; i < targetMethodSignature.Length; i++)
{
// TODO: throw if there's custom marshalling
_marshallingCodeStream.EmitLdArg(i);
TypeDesc nativeType = MarshalArgument(targetMethodSignature[i]);
nativeParameterTypes[i] = nativeType;
ILLocalVariable vMarshalledTypeTemp = _emitter.NewLocal(nativeType);
_marshallingCodeStream.EmitStLoc(vMarshalledTypeTemp);
callsiteSetupCodeStream.EmitLdLoc(vMarshalledTypeTemp);
}
//
// Return value marshalling
//
// TODO: throw if SetLastError is true
// TODO: throw if there's custom marshalling
TypeDesc nativeReturnType = MarshalReturnValue(targetMethodSignature.ReturnType);
MethodSignature nativeSig = new MethodSignature(
targetMethodSignature.Flags, 0, nativeReturnType, nativeParameterTypes);
MethodDesc nativeMethod =
new PInvokeTargetNativeMethod(_targetMethod.OwningType, nativeSig, _importMetadata);
// Call the native method
callsiteSetupCodeStream.Emit(ILOpcode.call, _emitter.NewToken(nativeMethod));
_unmarshallingCodestream.Emit(ILOpcode.ret);
return _emitter.Link();
}
public static MethodIL EmitIL(MethodDesc methodThatShouldThrow, TypeSystemException exception)
{
TypeSystemContext context = methodThatShouldThrow.Context;
MethodDesc helper;
Type exceptionType = exception.GetType();
if (exceptionType == typeof(TypeSystemException.TypeLoadException))
{
//
// There are two ThrowTypeLoadException helpers. Find the one which matches the number of
// arguments "exception" was initialized with.
//
helper = context.GetHelperEntryPoint("ThrowHelpers", "ThrowTypeLoadException");
if (helper.Signature.Length != exception.Arguments.Count + 1)
{
helper = context.GetHelperEntryPoint("ThrowHelpers", "ThrowTypeLoadExceptionWithArgument");
}
}
else if (exceptionType == typeof(TypeSystemException.MissingFieldException))
{
helper = context.GetHelperEntryPoint("ThrowHelpers", "ThrowMissingFieldException");
}
else if (exceptionType == typeof(TypeSystemException.MissingMethodException))
{
helper = context.GetHelperEntryPoint("ThrowHelpers", "ThrowMissingMethodException");
}
else if (exceptionType == typeof(TypeSystemException.FileNotFoundException))
{
helper = context.GetHelperEntryPoint("ThrowHelpers", "ThrowFileNotFoundException");
}
else if (exceptionType == typeof(TypeSystemException.InvalidProgramException))
{
helper = context.GetHelperEntryPoint("ThrowHelpers", "ThrowInvalidProgramException");
}
else
{
throw new NotImplementedException();
}
Debug.Assert(helper.Signature.Length == exception.Arguments.Count + 1);
var emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
var infinityLabel = emitter.NewCodeLabel();
codeStream.EmitLabel(infinityLabel);
codeStream.EmitLdc((int)exception.StringID);
foreach (var arg in exception.Arguments)
{
codeStream.Emit(ILOpcode.ldstr, emitter.NewToken(arg));
}
codeStream.Emit(ILOpcode.call, emitter.NewToken(helper));
// The call will never return, but we still need to emit something. Emit a jump so that
// we don't have to bother balancing the stack if the method returns something.
codeStream.Emit(ILOpcode.br, infinityLabel);
return emitter.Link(methodThatShouldThrow);
}
public override MethodIL EmitIL()
{
var emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// Load the stored 'this'
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(HelperObjectField));
// Load all arguments except 'this'
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
// Indirectly call the delegate target
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(ExtraFunctionPointerOrDataField));
CalliIntrinsic.EmitTransformedCalli(emitter, codeStream, Signature);
//codeStream.Emit(ILOpcode.calli, emitter.NewToken(Signature));
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public override MethodIL EmitIL()
{
const DelegateThunkKind maxThunkKind = DelegateThunkKind.ObjectArrayThunk;
ILEmitter emitter = new ILEmitter();
var codeStream = emitter.NewCodeStream();
ILCodeLabel returnNullLabel = emitter.NewCodeLabel();
ILCodeLabel[] labels = new ILCodeLabel[(int)maxThunkKind];
for (DelegateThunkKind i = 0; i < maxThunkKind; i++)
{
MethodDesc thunk = _delegateInfo.Thunks[i];
if (thunk != null)
labels[(int)i] = emitter.NewCodeLabel();
else
labels[(int)i] = returnNullLabel;
}
codeStream.EmitLdArg(1);
codeStream.EmitSwitch(labels);
codeStream.Emit(ILOpcode.br, returnNullLabel);
for (DelegateThunkKind i = 0; i < maxThunkKind; i++)
{
MethodDesc thunk = _delegateInfo.Thunks[i];
if (thunk != null)
{
codeStream.EmitLabel(labels[(int)i]);
codeStream.Emit(ILOpcode.ldftn, emitter.NewToken(thunk.InstantiateAsOpen()));
codeStream.Emit(ILOpcode.ret);
}
}
codeStream.EmitLabel(returnNullLabel);
codeStream.EmitLdc(0);
codeStream.Emit(ILOpcode.conv_i);
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public MethodIL EmitIL()
{
MethodSignature targetMethodSignature = _targetMethod.Signature;
// We have 4 code streams:
// - _marshallingCodeStream is used to convert each argument into a native type and
// store that into the local
// - callsiteSetupCodeStream is used to used to load each previously generated local
// and call the actual target native method.
// - _returnValueMarshallingCodeStream is used to convert the native return value
// to managed one.
// - _unmarshallingCodestream is used to propagate [out] native arguments values to
// managed ones.
_emitter = new ILEmitter();
ILCodeStream fnptrLoadStream = _emitter.NewCodeStream();
_marshallingCodeStream = _emitter.NewCodeStream();
ILCodeStream callsiteSetupCodeStream = _emitter.NewCodeStream();
_returnValueMarshallingCodeStream = _emitter.NewCodeStream();
_unmarshallingCodestream = _emitter.NewCodeStream();
TypeDesc[] nativeParameterTypes = new TypeDesc[targetMethodSignature.Length];
//
// Parameter marshalling
//
//
// Convert each argument to something we can pass to native and store it in a local.
// Then load the local in the second code stream.
//
for (int i = 0; i < targetMethodSignature.Length; i++)
{
// TODO: throw if there's custom marshalling
_marshallingCodeStream.EmitLdArg(i);
TypeDesc nativeType = MarshalArgument(targetMethodSignature[i]);
nativeParameterTypes[i] = nativeType;
ILLocalVariable vMarshalledTypeTemp = _emitter.NewLocal(nativeType);
_marshallingCodeStream.EmitStLoc(vMarshalledTypeTemp);
callsiteSetupCodeStream.EmitLdLoc(vMarshalledTypeTemp);
}
//
// Return value marshalling
//
// TODO: throw if SetLastError is true
// TODO: throw if there's custom marshalling
TypeDesc nativeReturnType = MarshalReturnValue(targetMethodSignature.ReturnType);
if (UseLazyResolution(_targetMethod, _importMetadata.Module))
{
MetadataType lazyHelperType = _targetMethod.Context.GetHelperType("InteropHelpers");
FieldDesc lazyDispatchCell = new PInvokeLazyFixupField((DefType)_targetMethod.OwningType, _importMetadata);
fnptrLoadStream.Emit(ILOpcode.ldsflda, _emitter.NewToken(lazyDispatchCell));
fnptrLoadStream.Emit(ILOpcode.call, _emitter.NewToken(lazyHelperType.GetKnownMethod("ResolvePInvoke", null)));
MethodSignatureFlags unmanagedCallConv = PInvokeMetadata.GetUnmanagedCallingConvention(_importMetadata.Attributes);
MethodSignature nativeCalliSig = new MethodSignature(
targetMethodSignature.Flags | unmanagedCallConv, 0, nativeReturnType, nativeParameterTypes);
ILLocalVariable vNativeFunctionPointer = _emitter.NewLocal(_targetMethod.Context.GetWellKnownType(WellKnownType.IntPtr));
fnptrLoadStream.EmitStLoc(vNativeFunctionPointer);
callsiteSetupCodeStream.EmitLdLoc(vNativeFunctionPointer);
callsiteSetupCodeStream.Emit(ILOpcode.calli, _emitter.NewToken(nativeCalliSig));
}
else
{
// Eager call
PInvokeMetadata nativeImportMetadata =
new PInvokeMetadata(_importMetadata.Module, _importMetadata.Name ?? _targetMethod.Name, _importMetadata.Attributes);
MethodSignature nativeSig = new MethodSignature(
targetMethodSignature.Flags, 0, nativeReturnType, nativeParameterTypes);
MethodDesc nativeMethod =
new PInvokeTargetNativeMethod(_targetMethod.OwningType, nativeSig, nativeImportMetadata);
callsiteSetupCodeStream.Emit(ILOpcode.call, _emitter.NewToken(nativeMethod));
}
_unmarshallingCodestream.Emit(ILOpcode.ret);
return _emitter.Link(_targetMethod);
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
ArrayType invocationListArrayType = SystemDelegateType.MakeArrayType();
ILLocalVariable delegateArrayLocal = emitter.NewLocal(invocationListArrayType);
ILLocalVariable invocationCountLocal = emitter.NewLocal(Context.GetWellKnownType(WellKnownType.Int32));
ILLocalVariable iteratorLocal = emitter.NewLocal(Context.GetWellKnownType(WellKnownType.Int32));
ILLocalVariable delegateToCallLocal = emitter.NewLocal(SystemDelegateType);
ILLocalVariable returnValueLocal = 0;
if (Signature.ReturnType is SignatureVariable || !Signature.ReturnType.IsVoid)
{
returnValueLocal = emitter.NewLocal(Signature.ReturnType);
}
// Fill in delegateArrayLocal
// Delegate[] delegateArrayLocal = (Delegate[])this.m_helperObject
// ldarg.0 (this pointer)
// ldfld Delegate.HelperObjectField
// castclass Delegate[]
// stloc delegateArrayLocal
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(HelperObjectField));
codeStream.Emit(ILOpcode.castclass, emitter.NewToken(invocationListArrayType));
codeStream.EmitStLoc(delegateArrayLocal);
// Fill in invocationCountLocal
// int invocationCountLocal = this.m_extraFunctionPointerOrData
// ldarg.0 (this pointer)
// ldfld Delegate.m_extraFunctionPointerOrData
// stloc invocationCountLocal
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(ExtraFunctionPointerOrDataField));
codeStream.EmitStLoc(invocationCountLocal);
// Fill in iteratorLocal
// int iteratorLocal = 0;
// ldc.0
// stloc iteratorLocal
codeStream.EmitLdc(0);
codeStream.EmitStLoc(iteratorLocal);
// Loop across every element of the array.
ILCodeLabel startOfLoopLabel = emitter.NewCodeLabel();
codeStream.EmitLabel(startOfLoopLabel);
// Implement as do/while loop. We only have this stub in play if we're in the multicast situation
// Find the delegate to call
// Delegate = delegateToCallLocal = delegateArrayLocal[iteratorLocal];
// ldloc delegateArrayLocal
// ldloc iteratorLocal
// ldelem System.Delegate
// stloc delegateToCallLocal
codeStream.EmitLdLoc(delegateArrayLocal);
codeStream.EmitLdLoc(iteratorLocal);
codeStream.Emit(ILOpcode.ldelem, emitter.NewToken(SystemDelegateType));
codeStream.EmitStLoc(delegateToCallLocal);
// Call the delegate
// returnValueLocal = delegateToCallLocal(...);
// ldloc delegateToCallLocal
// ldfld System.Delegate.m_firstParameter
// ldarg 1, n
// ldloc delegateToCallLocal
// ldfld System.Delegate.m_functionPointer
// calli returnValueType thiscall (all the params)
// IF there is a return value
// stloc returnValueLocal
codeStream.EmitLdLoc(delegateToCallLocal);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(FirstParameterField));
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
codeStream.EmitLdLoc(delegateToCallLocal);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(FunctionPointerField));
codeStream.Emit(ILOpcode.calli, emitter.NewToken(Signature));
if (returnValueLocal != 0)
codeStream.EmitStLoc(returnValueLocal);
// Increment iteratorLocal
// ++iteratorLocal;
// ldloc iteratorLocal
// ldc.i4.1
// add
// stloc iteratorLocal
codeStream.EmitLdLoc(iteratorLocal);
codeStream.EmitLdc(1);
codeStream.Emit(ILOpcode.add);
codeStream.EmitStLoc(iteratorLocal);
// Check to see if the loop is done
codeStream.EmitLdLoc(invocationCountLocal);
codeStream.EmitLdLoc(iteratorLocal);
codeStream.Emit(ILOpcode.bne_un, startOfLoopLabel);
// Return to caller. If the delegate has a return value, be certain to return that.
// return returnValueLocal;
// ldloc returnValueLocal
// ret
if (returnValueLocal != 0)
codeStream.EmitLdLoc(returnValueLocal);
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public override MethodIL EmitIL()
{
TypeDesc[] targetMethodParameters = new TypeDesc[Signature.Length + 1];
targetMethodParameters[0] = Context.GetWellKnownType(WellKnownType.Object);
for (int i = 0; i < Signature.Length; i++)
{
targetMethodParameters[i + 1] = Signature[i];
}
var targetMethodSignature = new MethodSignature(
Signature.Flags | MethodSignatureFlags.Static, 0, Signature.ReturnType, targetMethodParameters);
var emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// Load the stored 'this'
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(HelperObjectField));
// Load all arguments except 'this'
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
// Indirectly call the delegate target static method.
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(ExtraFunctionPointerOrDataField));
codeStream.Emit(ILOpcode.calli, emitter.NewToken(targetMethodSignature));
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public override MethodIL EmitIL()
{
// Target has the same signature as the Invoke method, except it's static.
MethodSignatureBuilder builder = new MethodSignatureBuilder(Signature);
builder.Flags = Signature.Flags | MethodSignatureFlags.Static;
var emitter = new ILEmitter();
ILCodeStream codeStream = emitter.NewCodeStream();
// Load all arguments except 'this'
for (int i = 0; i < Signature.Length; i++)
{
codeStream.EmitLdArg(i + 1);
}
// Indirectly call the delegate target static method.
codeStream.EmitLdArg(0);
codeStream.Emit(ILOpcode.ldfld, emitter.NewToken(ExtraFunctionPointerOrDataField));
codeStream.Emit(ILOpcode.calli, emitter.NewToken(builder.ToSignature()));
codeStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public override MethodIL EmitIL()
{
ILEmitter emitter = new ILEmitter();
ILCodeStream argSetupStream = emitter.NewCodeStream();
ILCodeStream callSiteSetupStream = emitter.NewCodeStream();
// This function will look like
//
// !For each parameter to the delegate
// !if (parameter is In Parameter)
// localX is TypeOfParameterX&
// ldtoken TypeOfParameterX
// call DynamicInvokeParamHelperIn(RuntimeTypeHandle)
// stloc localX
// !else
// localX is TypeOfParameter
// ldtoken TypeOfParameterX
// call DynamicInvokeParamHelperRef(RuntimeTypeHandle)
// stloc localX
// ldarg.3
// call DynamicInvokeArgSetupComplete(ref ArgSetupState)
// *** Second instruction stream starts here ***
// ldarg.1 // Load this pointer
// !For each parameter
// !if (parameter is In Parameter)
// ldloc localX
// ldobj TypeOfParameterX
// !else
// ldloc localX
// ldarg.1
// calli ReturnType thiscall(TypeOfParameter1, ...)
// !if ((ReturnType == void)
// ldnull
// !else if (ReturnType is a byref)
// ldobj StripByRef(ReturnType)
// box StripByRef(ReturnType)
// !else
// box ReturnType
// ret
callSiteSetupStream.EmitLdArg(1);
MethodSignature delegateSignature = _delegateInfo.Signature;
TypeDesc[] targetMethodParameters = new TypeDesc[delegateSignature.Length];
for (int paramIndex = 0; paramIndex < delegateSignature.Length; paramIndex++)
{
TypeDesc paramType = delegateSignature[paramIndex];
TypeDesc localType = paramType;
targetMethodParameters[paramIndex] = paramType;
if (localType.IsByRef)
{
// Strip ByRef
localType = ((ByRefType)localType).ParameterType;
}
else
{
// Only if this is not a ByRef, convert the parameter type to something boxable.
// Everything but pointer types are boxable.
localType = ConvertToBoxableType(localType);
}
ILLocalVariable local = emitter.NewLocal(localType.MakeByRefType());
callSiteSetupStream.EmitLdLoc(local);
argSetupStream.Emit(ILOpcode.ldtoken, emitter.NewToken(localType));
if (paramType.IsByRef)
{
argSetupStream.Emit(ILOpcode.call, emitter.NewToken(InvokeUtilsType.GetKnownMethod("DynamicInvokeParamHelperRef", null)));
}
else
{
argSetupStream.Emit(ILOpcode.call, emitter.NewToken(InvokeUtilsType.GetKnownMethod("DynamicInvokeParamHelperIn", null)));
callSiteSetupStream.Emit(ILOpcode.ldobj, emitter.NewToken(paramType));
}
argSetupStream.EmitStLoc(local);
}
argSetupStream.EmitLdArg(3);
argSetupStream.Emit(ILOpcode.call, emitter.NewToken(InvokeUtilsType.GetKnownMethod("DynamicInvokeArgSetupComplete", null)));
callSiteSetupStream.EmitLdArg(2);
MethodSignature targetMethodSig = new MethodSignature(0, 0, delegateSignature.ReturnType, targetMethodParameters);
callSiteSetupStream.Emit(ILOpcode.calli, emitter.NewToken(targetMethodSig));
if (delegateSignature.ReturnType.IsVoid)
{
callSiteSetupStream.Emit(ILOpcode.ldnull);
}
else if (delegateSignature.ReturnType.IsByRef)
{
TypeDesc targetType = ((ByRefType)delegateSignature.ReturnType).ParameterType;
callSiteSetupStream.Emit(ILOpcode.ldobj, emitter.NewToken(targetType));
callSiteSetupStream.Emit(ILOpcode.box, emitter.NewToken(targetType));
}
else
{
callSiteSetupStream.Emit(ILOpcode.box, emitter.NewToken(delegateSignature.ReturnType));
}
callSiteSetupStream.Emit(ILOpcode.ret);
return emitter.Link(this);
}
public MethodIL EmitIL()
{
MethodSignature targetMethodSignature = _targetMethod.Signature;
// We have two code streams - one is used to convert each argument into a native type
// and store that into the local. The other is used to load each previously generated local
// and call the actual target native method.
_emitter = new ILEmitter();
_marshallingCodeStream = _emitter.NewCodeStream();
ILCodeStream callsiteSetupCodeStream = _emitter.NewCodeStream();
_returnValueMarshallingCodeStream = _emitter.NewCodeStream();
TypeDesc[] nativeParameterTypes = new TypeDesc[targetMethodSignature.Length];
//
// Parameter marshalling
//
//
// Convert each argument to something we can pass to native and store it in a local.
// Then load the local in the second code stream.
//
for (int i = 0; i < targetMethodSignature.Length; i++)
{
// TODO: throw if there's custom marshalling
TypeDesc parameterType = targetMethodSignature[i];
_marshallingCodeStream.EmitLdArg(i);
TypeDesc nativeType;
if (parameterType.IsSzArray)
{
nativeType = EmitArrayMarshalling((ArrayType)parameterType);
}
else if (parameterType.IsByRef)
{
nativeType = EmitByRefMarshalling((ByRefType)parameterType);
}
else if (parameterType.IsString)
{
nativeType = EmitStringMarshalling();
}
else if (parameterType.Category == TypeFlags.Boolean)
{
nativeType = EmitBooleanMarshalling();
}
else
{
if (!IsBlittableType(parameterType))
throw new NotSupportedException();
nativeType = parameterType.UnderlyingType;
}
nativeParameterTypes[i] = nativeType;
ILLocalVariable vMarshalledTypeTemp = _emitter.NewLocal(nativeType);
_marshallingCodeStream.EmitStLoc(vMarshalledTypeTemp);
callsiteSetupCodeStream.EmitLdLoc(vMarshalledTypeTemp);
}
//
// Return value marshalling
//
// TODO: throw if SetLastError is true
// TODO: throw if there's custom marshalling
TypeDesc returnType = targetMethodSignature.ReturnType;
TypeDesc nativeReturnType;
if (returnType.IsVoid)
{
nativeReturnType = returnType;
}
else if (returnType.Category == TypeFlags.Boolean)
{
nativeReturnType = EmitBooleanReturnValueMarshalling();
}
else
{
if (!IsBlittableType(returnType))
throw new NotSupportedException();
nativeReturnType = returnType;
}
MethodSignature nativeSig = new MethodSignature(
targetMethodSignature.Flags, 0, nativeReturnType, nativeParameterTypes);
MethodDesc nativeMethod =
new PInvokeTargetNativeMethod(_targetMethod.OwningType, nativeSig, _importMetadata);
// Call the native method
callsiteSetupCodeStream.Emit(ILOpcode.call, _emitter.NewToken(nativeMethod));
callsiteSetupCodeStream.Emit(ILOpcode.ret);
return _emitter.Link();
}