/*
* Determine if a type is a sub-class of a specific class.
*/
static int IsSubClass(ILType *type, ILClass *classInfo)
{
ILClass *typeClass;
if(type == 0)
{
/* The type is "null", which is always a sub-class */
return 1;
}
else if(ILType_IsClass(type) || ILType_IsValueType(type))
{
typeClass = ILType_ToClass(type);
if(ILClassInheritsFrom(typeClass, classInfo) ||
ILClassImplements(typeClass, classInfo))
{
return 1;
}
return 0;
}
else if((typeClass = ILClassFromType(ILClassToImage(classInfo),
0, type, 0)) != 0)
{
if(ILClassInheritsFrom(typeClass, classInfo) ||
ILClassImplements(typeClass, classInfo))
{
return 1;
}
return 0;
}
else
{
return 0;
}
}
/*
* private static Object InternalGetUnitializaedObject(Type type);
*/
ILObject *_IL_FormatterServices_InternalGetUninitializedObject
(ILExecThread *_thread, ILObject *type)
{
ILClass *classInfo = _ILGetClrClass(_thread, type);
ILType *classType;
if(classInfo)
{
classType = ILClassToType(classInfo);
if(classType && (ILType_IsClass(classType) ||
ILType_IsValueType(classType) ||
ILType_IsPrimitive(classType)) &&
!ILTypeIsStringClass(classType))
{
return _ILEngineAllocObject(_thread, classInfo);
}
}
return 0;
}
/*
* Determine if a type is represented as an object reference.
*/
static int IsObjectRef(ILType *type)
{
if(type == 0)
{
/* This is the "null" type, which is always an object reference */
return 1;
}
else if(ILType_IsClass(type))
{
return 1;
}
else if(ILType_IsArray(type))
{
return 1;
}
else if(ILType_IsWith(type))
{
return IsObjectRef(ILTypeGetWithMain(type));
}
else
{
return 0;
}
}
/*
* Unpack the result of a delegate closure call.
*/
static void UnpackDelegateResult(ILExecThread *thread, ILMethod *method,
int isCtor, void *result, void *userData)
{
ILMethod *pinvokeInfo = ((PackDelegateUserData *)userData)->pinvokeInfo;
ILType *signature = ILMethod_Signature(method);
ILType *paramType;
ILUInt32 size, sizeInWords;
ILNativeFloat tempFloat;
ILUInt32 marshalType;
char *customName;
int customNameLen;
char *customCookie;
int customCookieLen;
/* Marshal return types that need special handling */
marshalType = ILPInvokeGetMarshalType
(0, pinvokeInfo, 0, &customName, &customNameLen,
&customCookie, &customCookieLen, ILTypeGetReturn(signature));
if(marshalType != IL_META_MARSHAL_DIRECT)
{
switch(marshalType)
{
case IL_META_MARSHAL_ANSI_STRING:
{
/* Marshal an ANSI string back to the native world */
*((char **)result) = ILStringToAnsi
(thread, (ILString *)(thread->stackTop[-1].ptrValue));
--(thread->stackTop);
}
return;
case IL_META_MARSHAL_UTF8_STRING:
{
/* Marshal a UTF-8 string back to the native world */
*((char **)result) = ILStringToUTF8
(thread, (ILString *)(thread->stackTop[-1].ptrValue));
--(thread->stackTop);
}
return;
case IL_META_MARSHAL_UTF16_STRING:
{
/* Marshal a UTF-16 string back to the native world */
*((ILUInt16 **)result) = ILStringToUTF16
(thread, (ILString *)(thread->stackTop[-1].ptrValue));
--(thread->stackTop);
}
return;
case IL_META_MARSHAL_FNPTR:
{
/* Convert a delegate into a function closure pointer */
*((void **)result) = _ILDelegateGetClosure
(thread, (ILObject *)(thread->stackTop[-1].ptrValue));
--(thread->stackTop);
}
return;
case IL_META_MARSHAL_ARRAY:
{
/* Convert an array into a pointer to its first member */
void *array = thread->stackTop[-1].ptrValue;
--(thread->stackTop);
if(array)
{
*((void **)result) = ArrayToBuffer(array);
}
else
{
*((void **)result) = 0;
}
}
return;
case IL_META_MARSHAL_CUSTOM:
{
/* Marshal a custom value to the native world */
*((void **)result) = _ILObjectToCustom
(thread, (ILObject *)(thread->stackTop[-1].ptrValue),
customName, customNameLen, customCookie, customCookieLen);
--(thread->stackTop);
}
return;
}
}
/* Copy the return value into place */
paramType = ILTypeGetEnumType(ILTypeGetReturn(signature));
if(ILType_IsPrimitive(paramType))
{
/* Process a primitive value */
switch(ILType_ToElement(paramType))
{
case IL_META_ELEMTYPE_VOID: break;
case IL_META_ELEMTYPE_BOOLEAN:
case IL_META_ELEMTYPE_I1:
case IL_META_ELEMTYPE_U1:
case IL_META_ELEMTYPE_I2:
case IL_META_ELEMTYPE_U2:
case IL_META_ELEMTYPE_CHAR:
case IL_META_ELEMTYPE_I4:
case IL_META_ELEMTYPE_U4:
#ifdef IL_NATIVE_INT32
case IL_META_ELEMTYPE_I:
case IL_META_ELEMTYPE_U:
#endif
{
*((ILInt32 *)result) = thread->stackTop[-1].intValue;
--(thread->stackTop);
}
break;
case IL_META_ELEMTYPE_I8:
case IL_META_ELEMTYPE_U8:
#ifdef IL_NATIVE_INT64
case IL_META_ELEMTYPE_I:
case IL_META_ELEMTYPE_U:
#endif
{
ILMemCpy(result,
thread->stackTop - CVM_WORDS_PER_LONG,
sizeof(ILInt64));
thread->stackTop -= CVM_WORDS_PER_LONG;
}
break;
case IL_META_ELEMTYPE_R4:
{
ILMemCpy(&tempFloat,
thread->stackTop - CVM_WORDS_PER_NATIVE_FLOAT,
sizeof(ILNativeFloat));
*((ILFloat *)result) = (ILFloat)tempFloat;
thread->stackTop -= CVM_WORDS_PER_NATIVE_FLOAT;
}
break;
case IL_META_ELEMTYPE_R8:
{
ILMemCpy(&tempFloat,
thread->stackTop - CVM_WORDS_PER_NATIVE_FLOAT,
sizeof(ILNativeFloat));
*((ILDouble *)result) = (ILDouble)tempFloat;
thread->stackTop -= CVM_WORDS_PER_NATIVE_FLOAT;
}
break;
case IL_META_ELEMTYPE_R:
{
ILMemCpy(result,
thread->stackTop - CVM_WORDS_PER_NATIVE_FLOAT,
sizeof(ILNativeFloat));
thread->stackTop -= CVM_WORDS_PER_NATIVE_FLOAT;
}
break;
case IL_META_ELEMTYPE_TYPEDBYREF:
{
ILMemCpy(result,
thread->stackTop - CVM_WORDS_PER_TYPED_REF,
sizeof(ILTypedRef));
thread->stackTop -= CVM_WORDS_PER_TYPED_REF;
}
break;
}
}
else if(ILType_IsClass(paramType))
{
/* Process an object reference */
*((void **)result) = thread->stackTop[-1].ptrValue;
--(thread->stackTop);
}
else if(ILType_IsValueType(paramType))
{
/* Process a value type */
size = ILSizeOfType(thread, paramType);
sizeInWords = ((size + sizeof(CVMWord) - 1) / sizeof(CVMWord));
ILMemCpy(result, thread->stackTop - sizeInWords, size);
thread->stackTop -= sizeInWords;
}
else
{
/* Assume that everything else is an object reference */
*((void **)result) = thread->stackTop[-1].ptrValue;
--(thread->stackTop);
}
}
/*
* Pack the parameters for a delegate closure call onto the CVM stack.
*/
static int PackDelegateParams(ILExecThread *thread, ILMethod *method,
int isCtor, void *_this, void *userData)
{
void **args = ((PackDelegateUserData *)userData)->args;
ILMethod *pinvokeInfo = ((PackDelegateUserData *)userData)->pinvokeInfo;
ILType *signature = ILMethod_Signature(method);
CVMWord *stacktop, *stacklimit;
ILUInt32 param, numParams;
ILType *paramType;
void *ptr;
ILUInt32 size, sizeInWords;
ILNativeFloat tempFloat;
ILUInt32 marshalType;
char *customName;
int customNameLen;
char *customCookie;
int customCookieLen;
char *strValue;
/* Get the top and extent of the stack */
stacktop = thread->stackTop;
stacklimit = thread->stackLimit;
/* Push the arguments onto the evaluation stack */
if(ILType_HasThis(signature))
{
/* Push the "this" argument */
CHECK_SPACE(1);
if(((PackDelegateUserData *)userData)->needThis)
{
/* We get the "this" value from the incoming arguments */
stacktop->ptrValue = *((void **)(*args));
++args;
}
else
{
/* We get the "this" value from the delegate object */
stacktop->ptrValue = _this;
}
++stacktop;
}
numParams = ILTypeNumParams(signature);
for(param = 1; param <= numParams; ++param)
{
/* Marshal parameters that need special handling */
marshalType = ILPInvokeGetMarshalType(0, pinvokeInfo, param,
&customName, &customNameLen,
&customCookie, &customCookieLen,
ILTypeGetParam(signature, param));
if(marshalType != IL_META_MARSHAL_DIRECT)
{
switch(marshalType)
{
case IL_META_MARSHAL_ANSI_STRING:
{
/* Marshal an ANSI string from the native world */
CHECK_SPACE(1);
strValue = *((char **)(*args));
if(strValue)
{
stacktop->ptrValue = ILStringCreate(thread, strValue);
/* Free the native string */
ILFreeNativeString(strValue);
if(!(stacktop->ptrValue))
{
return 1;
}
}
else
{
stacktop->ptrValue = 0;
}
++args;
++stacktop;
}
continue;
case IL_META_MARSHAL_UTF8_STRING:
{
/* Marshal a UTF-8 string from the native world */
CHECK_SPACE(1);
strValue = *((char **)(*args));
if(strValue)
{
stacktop->ptrValue =
ILStringCreateUTF8(thread, strValue);
/* Free the native string */
ILFreeNativeString(strValue);
if(!(stacktop->ptrValue))
{
return 1;
}
}
else
{
stacktop->ptrValue = 0;
}
++args;
++stacktop;
}
continue;
case IL_META_MARSHAL_UTF16_STRING:
{
/* Marshal a UTF-16 string from the native world */
CHECK_SPACE(1);
strValue = *((char **)(*args));
if(strValue)
{
stacktop->ptrValue =
ILStringWCreate(thread, (ILUInt16 *)strValue);
/* Free the native string */
ILFreeNativeString(strValue);
if(!(stacktop->ptrValue))
{
return 1;
}
}
else
{
stacktop->ptrValue = 0;
}
++args;
++stacktop;
}
continue;
case IL_META_MARSHAL_CUSTOM:
{
/* Marshal a custom value from the native world */
CHECK_SPACE(1);
stacktop->ptrValue = _ILCustomToObject
(thread, *((void **)(*args)),
customName, customNameLen,
customCookie, customCookieLen);
if(_ILExecThreadHasException(thread))
{
return 1;
}
++args;
++stacktop;
}
continue;
}
}
/* Marshal the parameter directly */
paramType = ILTypeGetEnumType(ILTypeGetParam(signature, param));
if(ILType_IsPrimitive(paramType))
{
/* Process a primitive value */
switch(ILType_ToElement(paramType))
{
case IL_META_ELEMTYPE_VOID: break;
case IL_META_ELEMTYPE_BOOLEAN:
case IL_META_ELEMTYPE_I1:
case IL_META_ELEMTYPE_U1:
case IL_META_ELEMTYPE_I2:
case IL_META_ELEMTYPE_U2:
case IL_META_ELEMTYPE_CHAR:
case IL_META_ELEMTYPE_I4:
case IL_META_ELEMTYPE_U4:
#ifdef IL_NATIVE_INT32
case IL_META_ELEMTYPE_I:
case IL_META_ELEMTYPE_U:
#endif
{
CHECK_SPACE(1);
stacktop->intValue = *((ILInt32 *)(*args));
++args;
++stacktop;
}
break;
case IL_META_ELEMTYPE_I8:
case IL_META_ELEMTYPE_U8:
#ifdef IL_NATIVE_INT64
case IL_META_ELEMTYPE_I:
case IL_META_ELEMTYPE_U:
#endif
{
CHECK_SPACE(CVM_WORDS_PER_LONG);
ILMemCpy(stacktop, *args, sizeof(ILInt64));
++args;
stacktop += CVM_WORDS_PER_LONG;
}
break;
case IL_META_ELEMTYPE_R4:
{
CHECK_SPACE(CVM_WORDS_PER_NATIVE_FLOAT);
tempFloat = (ILNativeFloat)(*((ILFloat *)(*args)));
ILMemCpy(stacktop, &tempFloat, sizeof(ILNativeFloat));
++args;
stacktop += CVM_WORDS_PER_NATIVE_FLOAT;
}
break;
case IL_META_ELEMTYPE_R8:
{
CHECK_SPACE(CVM_WORDS_PER_NATIVE_FLOAT);
tempFloat = (ILNativeFloat)(*((ILDouble *)(*args)));
ILMemCpy(stacktop, &tempFloat, sizeof(ILNativeFloat));
++args;
stacktop += CVM_WORDS_PER_NATIVE_FLOAT;
}
break;
case IL_META_ELEMTYPE_R:
{
CHECK_SPACE(CVM_WORDS_PER_NATIVE_FLOAT);
ILMemCpy(stacktop, *args, sizeof(ILNativeFloat));
++args;
stacktop += CVM_WORDS_PER_NATIVE_FLOAT;
}
break;
case IL_META_ELEMTYPE_TYPEDBYREF:
{
CHECK_SPACE(CVM_WORDS_PER_TYPED_REF);
ILMemCpy(stacktop, *args, sizeof(ILTypedRef));
++args;
stacktop += CVM_WORDS_PER_TYPED_REF;
}
break;
}
}
else if(ILType_IsClass(paramType))
{
/* Process an object reference */
CHECK_SPACE(1);
stacktop->ptrValue = *((void **)(*args));
++args;
++stacktop;
}
else if(ILType_IsValueType(paramType))
{
/* Process a value type which was passed by value */
ptr = *args;
++args;
size = ILSizeOfType(thread, paramType);
sizeInWords = ((size + sizeof(CVMWord) - 1) / sizeof(CVMWord));
CHECK_SPACE(sizeInWords);
ILMemCpy(stacktop, ptr, size);
stacktop += sizeInWords;
}
else if(paramType != 0 && ILType_IsComplex(paramType) &&
(ILType_Kind(paramType) == IL_TYPE_COMPLEX_BYREF ||
ILType_Kind(paramType) == IL_TYPE_COMPLEX_PTR))
{
/* Process a value that is being passed by reference */
CHECK_SPACE(1);
stacktop->ptrValue = *((void **)(*args));
++args;
++stacktop;
}
else
{
/* Assume that everything else is an object reference */
CHECK_SPACE(1);
stacktop->ptrValue = *args;
++args;
++stacktop;
}
}
/* Update the stack top */
thread->stackTop = stacktop;
return 0;
}
