public static void MarshalToPcode(object value, ref StackElement pcode, DataTypes type)
{
#if DEBUG
pcode.AssertClear();
#endif
switch (type)
{
default:
Debug.Assert(false); // an unknown data type is a bug on our caller's part
throw new ArgumentException();
case DataTypes.eBoolean:
pcode.Data.Integer = (bool)value ? 1 : 0;
break;
case DataTypes.eInteger:
pcode.Data.Integer = (int)value;
break;
case DataTypes.eFloat:
pcode.Data.Float = (float)value;
break;
case DataTypes.eDouble:
pcode.Data.Double = (double)value;
break;
case DataTypes.eArrayOfBoolean:
case DataTypes.eArrayOfByte:
pcode.reference.arrayHandleByte = (ArrayHandleByte)value;
break;
case DataTypes.eArrayOfInteger:
pcode.reference.arrayHandleInt32 = (ArrayHandleInt32)value;
break;
case DataTypes.eArrayOfFloat:
pcode.reference.arrayHandleFloat = (ArrayHandleFloat)value;
break;
case DataTypes.eArrayOfDouble:
pcode.reference.arrayHandleDouble = (ArrayHandleDouble)value;
break;
}
}
public static void MarshalToManaged(ref StackElement value, DataTypes type, out object managed)
{
switch (type)
{
default:
Debug.Assert(false); // an unknown data type is a bug on our caller's part
throw new ArgumentException();
case DataTypes.eBoolean:
managed = value.Data.Integer != 0;
break;
case DataTypes.eInteger:
managed = value.Data.Integer;
break;
case DataTypes.eFloat:
managed = value.Data.Float;
break;
case DataTypes.eDouble:
managed = value.Data.Double;
break;
case DataTypes.eArrayOfBoolean:
case DataTypes.eArrayOfByte:
managed = value.reference.arrayHandleByte;
break;
case DataTypes.eArrayOfInteger:
managed = value.reference.arrayHandleInt32;
break;
case DataTypes.eArrayOfFloat:
managed = value.reference.arrayHandleFloat;
break;
case DataTypes.eArrayOfDouble:
managed = value.reference.arrayHandleDouble;
break;
}
}
public void CopyFrom(ref StackElement source)
{
Data.int64 = source.Data.int64;
reference.generic = source.reference.generic;
}
public CILObject(
ManagedFunctionLinkerRec managedFunctionLinker,
DataTypes[] argsTypes,
string[] argsNames,
DataTypes returnType,
Compiler.ASTExpression ast,
CILAssembly cilAssembly,
bool argsByRef)
{
this.argsTypes = argsTypes;
this.returnType = returnType;
this.cilAssembly = cilAssembly;
PcodeMarshal.GetManagedFunctionSignature(
argsTypes,
returnType,
out managedArgsTypes,
out managedReturnType);
int methodSequenceNumber = methodNameSequencer++;
methodName = String.Format("m{0}", methodSequenceNumber);
MethodBuilder methodBuilder;
if (!argsByRef)
{
methodBuilder = cilAssembly.typeBuilder.DefineMethod(
methodName,
MethodAttributes.Public | MethodAttributes.Static,
managedReturnType,
managedArgsTypes);
}
else
{
Type[] managedArgsTypesByRef = new Type[managedArgsTypes.Length];
for (int i = 0; i < managedArgsTypesByRef.Length; i++)
{
managedArgsTypesByRef[i] = managedArgsTypes[i].MakeByRefType();
}
methodBuilder = cilAssembly.typeBuilder.DefineMethod(
methodName,
MethodAttributes.Public | MethodAttributes.Static,
managedReturnType,
managedArgsTypesByRef);
}
ILGenerator ilGenerator = methodBuilder.GetILGenerator();
Dictionary <SymbolRec, LocalBuilder> variableTable = new Dictionary <SymbolRec, LocalBuilder>();
Dictionary <string, int> argumentTable = new Dictionary <string, int>();
Dictionary <string, LocalBuilder> localArgMap = new Dictionary <string, LocalBuilder>();
List <LocalBuilder> localArgs = new List <LocalBuilder>();
if (!argsByRef)
{
for (int i = 0; i < argsNames.Length; i++)
{
argumentTable.Add(argsNames[i], i);
}
}
else
{
for (int i = 0; i < argsNames.Length; i++)
{
LocalBuilder localForArg = ilGenerator.DeclareLocal(managedArgsTypes[i]);
localArgs.Add(localForArg);
localArgMap.Add(argsNames[i], localForArg);
ilGenerator.Emit(OpCodes.Ldarg, i);
switch (argsTypes[i])
{
default:
Debug.Assert(false);
throw new ArgumentException();
case DataTypes.eBoolean:
case DataTypes.eInteger:
ilGenerator.Emit(OpCodes.Ldind_I4);
break;
case DataTypes.eFloat:
ilGenerator.Emit(OpCodes.Ldind_R4);
break;
case DataTypes.eDouble:
ilGenerator.Emit(OpCodes.Ldind_R8);
break;
case DataTypes.eArrayOfBoolean:
case DataTypes.eArrayOfByte:
case DataTypes.eArrayOfInteger:
case DataTypes.eArrayOfFloat:
case DataTypes.eArrayOfDouble:
ilGenerator.Emit(OpCodes.Ldind_Ref);
break;
}
ilGenerator.Emit(OpCodes.Stloc, localForArg);
}
}
ast.ILGen(
this,
new Compiler.ILGenContext(
ilGenerator,
argumentTable,
variableTable,
managedFunctionLinker,
argsByRef,
localArgMap));
if (argsByRef)
{
for (int i = 0; i < argsNames.Length; i++)
{
ilGenerator.Emit(OpCodes.Ldarg, i);
ilGenerator.Emit(OpCodes.Ldloc, localArgs[i]);
switch (argsTypes[i])
{
default:
Debug.Assert(false);
throw new ArgumentException();
case DataTypes.eBoolean:
case DataTypes.eInteger:
ilGenerator.Emit(OpCodes.Stind_I4);
break;
case DataTypes.eFloat:
ilGenerator.Emit(OpCodes.Stind_R4);
break;
case DataTypes.eDouble:
ilGenerator.Emit(OpCodes.Stind_R8);
break;
case DataTypes.eArrayOfBoolean:
case DataTypes.eArrayOfByte:
case DataTypes.eArrayOfInteger:
case DataTypes.eArrayOfFloat:
case DataTypes.eArrayOfDouble:
ilGenerator.Emit(OpCodes.Stind_Ref);
break;
}
}
}
ilGenerator.Emit(OpCodes.Ret);
// Generate shim (see explanation at InvokeShim)
methodNameShim = String.Format("s{0}", methodSequenceNumber);
MethodBuilder methodBuilderShim = cilAssembly.typeBuilder.DefineMethod(
methodNameShim,
MethodAttributes.Public | MethodAttributes.Static,
typeof(void),
new Type[0]);
ILGenerator ilGeneratorShim = methodBuilderShim.GetILGenerator();
ilGeneratorShim.Emit(OpCodes.Call, typeof(CILThreadLocalStorage).GetMethod("get_CurrentShimArg", BindingFlags.Public | BindingFlags.Static));
LocalBuilder localShimArg = ilGeneratorShim.DeclareLocal(typeof(StackElement[]));
ilGeneratorShim.Emit(OpCodes.Stloc, localShimArg);
// Compute pointer to last valid stack element (retval slot). In the process, provide a null check
// and a covering array bounds check. (Subsequent references are done by pointer arithmetic to avoid
// redundant bounds checks.)
LocalBuilder ptrToRetVal = null;
if (Environment.Is64BitProcess)
{
ptrToRetVal = ilGeneratorShim.DeclareLocal(typeof(StackElement).MakeByRefType());
ilGeneratorShim.Emit(OpCodes.Ldloc, localShimArg);
ilGeneratorShim.Emit(OpCodes.Ldc_I4, (int)argsTypes.Length); // retaddr/retval slot
ilGeneratorShim.Emit(OpCodes.Ldelema, typeof(StackElement));
ilGeneratorShim.Emit(OpCodes.Stloc, ptrToRetVal);
}
for (int i = 0; i < argsTypes.Length; i++)
{
if (Environment.Is64BitProcess)
{
ilGeneratorShim.Emit(OpCodes.Ldloc, ptrToRetVal);
ilGeneratorShim.Emit(OpCodes.Ldc_I4, (int)((i - argsTypes.Length) * StackElement.SizeOf()));
ilGeneratorShim.Emit(OpCodes.Add);
}
else
{
// pointer arithmetic only works on 64-bit -- suspect bug in 32-bit JIT; generated code is very strange
// so fall back to regular array refs
ilGeneratorShim.Emit(OpCodes.Ldloc, localShimArg);
ilGeneratorShim.Emit(OpCodes.Ldc_I4, (int)i);
ilGeneratorShim.Emit(OpCodes.Ldelema, typeof(StackElement));
}
LocalBuilder locElemAddr = ilGeneratorShim.DeclareLocal(typeof(StackElement).MakeByRefType());
ilGeneratorShim.Emit(OpCodes.Stloc, locElemAddr);
ilGeneratorShim.Emit(OpCodes.Ldloc, locElemAddr);
bool arrayType;
switch (argsTypes[i])
{
default:
Debug.Assert(false);
throw new ArgumentException();
case DataTypes.eBoolean:
case DataTypes.eInteger:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("Data"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ScalarOverlayType).GetField("Integer"));
arrayType = false;
break;
case DataTypes.eFloat:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("Data"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ScalarOverlayType).GetField("Float"));
arrayType = false;
break;
case DataTypes.eDouble:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("Data"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ScalarOverlayType).GetField("Double"));
arrayType = false;
break;
case DataTypes.eArrayOfBoolean:
case DataTypes.eArrayOfByte:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ReferenceOverlayType).GetField("arrayHandleByte"));
arrayType = true;
break;
case DataTypes.eArrayOfInteger:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ReferenceOverlayType).GetField("arrayHandleInt32"));
arrayType = true;
break;
case DataTypes.eArrayOfFloat:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ReferenceOverlayType).GetField("arrayHandleFloat"));
arrayType = true;
break;
case DataTypes.eArrayOfDouble:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(!argsByRef ? OpCodes.Ldfld : OpCodes.Ldflda, typeof(ReferenceOverlayType).GetField("arrayHandleDouble"));
arrayType = true;
break;
}
if (!argsByRef)
{
ilGeneratorShim.Emit(OpCodes.Ldloc, locElemAddr);
if (arrayType)
{
ilGeneratorShim.Emit(OpCodes.Call, typeof(StackElement).GetMethod("ClearArray"));
}
else
{
ilGeneratorShim.Emit(OpCodes.Call, typeof(StackElement).GetMethod("ClearScalar"));
}
}
}
ilGeneratorShim.Emit(OpCodes.Call, methodBuilder);
LocalBuilder retVal = ilGeneratorShim.DeclareLocal(managedReturnType);
ilGeneratorShim.Emit(OpCodes.Stloc, retVal);
if (Environment.Is64BitProcess)
{
ilGeneratorShim.Emit(OpCodes.Ldloc, ptrToRetVal);
ilGeneratorShim.Emit(OpCodes.Ldc_I4, (int)((!argsByRef ? 0 : argsTypes.Length) - argsTypes.Length) * StackElement.SizeOf());
ilGeneratorShim.Emit(OpCodes.Add);
}
else
{
// pointer arithmetic only works on 64-bit -- suspect bug in 32-bit JIT; generated code is very strange
// so fall back to regular array refs
ilGeneratorShim.Emit(OpCodes.Ldloc, localShimArg);
ilGeneratorShim.Emit(OpCodes.Ldc_I4, (int)(!argsByRef ? 0 : argsTypes.Length));
ilGeneratorShim.Emit(OpCodes.Ldelema, typeof(StackElement));
}
switch (returnType)
{
default:
Debug.Assert(false);
throw new ArgumentException();
case DataTypes.eBoolean:
case DataTypes.eInteger:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("Data"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ScalarOverlayType).GetField("Integer"));
break;
case DataTypes.eFloat:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("Data"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ScalarOverlayType).GetField("Float"));
break;
case DataTypes.eDouble:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("Data"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ScalarOverlayType).GetField("Double"));
break;
case DataTypes.eArrayOfBoolean:
case DataTypes.eArrayOfByte:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ReferenceOverlayType).GetField("arrayHandleByte"));
break;
case DataTypes.eArrayOfInteger:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ReferenceOverlayType).GetField("arrayHandleInt32"));
break;
case DataTypes.eArrayOfFloat:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ReferenceOverlayType).GetField("arrayHandleFloat"));
break;
case DataTypes.eArrayOfDouble:
ilGeneratorShim.Emit(OpCodes.Ldflda, typeof(StackElement).GetField("reference"));
ilGeneratorShim.Emit(OpCodes.Ldloc, retVal);
ilGeneratorShim.Emit(OpCodes.Stfld, typeof(ReferenceOverlayType).GetField("arrayHandleDouble"));
break;
}
if (!argsByRef)
{
ilGeneratorShim.Emit(OpCodes.Ldc_I4_0);
ilGeneratorShim.Emit(OpCodes.Call, typeof(CILThreadLocalStorage).GetMethod("set_CurrentShimStackPtr", BindingFlags.Public | BindingFlags.Static));
}
ilGeneratorShim.Emit(OpCodes.Ret);
}
