-/*
- * cominterop.c: COM Interop Support
+/**
+ * \file
+ * COM Interop Support
*
*
* (C) 2002 Ximian, Inc. http://www.ximian.com
}
}
- if (!ic)
- g_assert (ic);
- g_assert (MONO_CLASS_IS_INTERFACE (ic));
-
return ic;
}
+static void
+mono_cominterop_get_interface_missing_error (MonoError* error, MonoMethod* method)
+{
+ mono_error_set_invalid_operation (error, "Method '%s' in ComImport class '%s' must implement an interface method.", method->name, method->klass->name);
+}
+
/**
* cominterop_get_com_slot_for_method:
* @method: a method
+ * @error: set on error
*
* Returns: the method's slot in the COM interface vtable
*/
static int
-cominterop_get_com_slot_for_method (MonoMethod* method)
+cominterop_get_com_slot_for_method (MonoMethod* method, MonoError* error)
{
guint32 slot = method->slot;
MonoClass *ic = method->klass;
+ error_init (error);
+
/* if method is on a class, we need to look up interface method exists on */
if (!MONO_CLASS_IS_INTERFACE(ic)) {
int offset = 0;
int i = 0;
ic = cominterop_get_method_interface (method);
+ if (!ic || !MONO_CLASS_IS_INTERFACE (ic)) {
+ mono_cominterop_get_interface_missing_error (error, method);
+ return -1;
+ }
offset = mono_class_interface_offset (method->klass, ic);
g_assert(offset >= 0);
int mcount = mono_class_get_method_count (ic);
g_assert (ic);
g_assert (MONO_CLASS_IS_INTERFACE (ic));
- mono_error_init (error);
+ error_init (error);
mono_cominterop_lock ();
if (obj->itf_hash)
void
mono_cominterop_init (void)
{
- const char* com_provider_env;
+ char* com_provider_env;
mono_os_mutex_init_recursive (&cominterop_mutex);
com_provider_env = g_getenv ("MONO_COM");
if (com_provider_env && !strcmp(com_provider_env, "MS"))
com_provider = MONO_COM_MS;
+ if (com_provider_env)
+ g_free (com_provider_env);
register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
}
void
-mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
+mono_mb_emit_cominterop_get_function_pointer (MonoMethodBuilder *mb, MonoMethod *method)
{
#ifndef DISABLE_JIT
+ int slot;
+ MonoError error;
// get function pointer from 1st arg, the COM interface pointer
mono_mb_emit_ldarg (mb, 0);
- mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
- mono_mb_emit_icall (mb, cominterop_get_function_pointer);
+ slot = cominterop_get_com_slot_for_method (method, &error);
+ if (is_ok (&error)) {
+ mono_mb_emit_icon (mb, slot);
+ mono_mb_emit_icall (mb, cominterop_get_function_pointer);
+ /* Leaves the function pointer on top of the stack */
+ }
+ else {
+ mono_mb_emit_exception_for_error (mb, &error);
+ }
+ mono_error_cleanup (&error);
+#endif
+}
+void
+mono_mb_emit_cominterop_call_function_pointer (MonoMethodBuilder *mb, MonoMethodSignature *sig)
+{
+#ifndef DISABLE_JIT
mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
mono_mb_emit_calli (mb, sig);
#endif /* DISABLE_JIT */
}
+void
+mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
+{
+#ifndef DISABLE_JIT
+ mono_mb_emit_cominterop_get_function_pointer (mb, method);
+
+ mono_mb_emit_cominterop_call_function_pointer (mb, sig);
+#endif /* DISABLE_JIT */
+}
+
void
mono_cominterop_emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
{
/**
* mono_cominterop_get_native_wrapper:
- * @method: managed method
- *
- * Returns: the generated method to call
+ * \param method managed method
+ * \returns the generated method to call
*/
MonoMethod *
mono_cominterop_get_native_wrapper (MonoMethod *method)
mono_mb_emit_managed_call (mb, ctor, NULL);
mono_mb_emit_byte (mb, CEE_RET);
}
+ else if (method->flags & METHOD_ATTRIBUTE_STATIC) {
+ /*
+ * The method's class must implement an interface.
+ * However, no interfaces are allowed to have static methods.
+ * Thus, calling it should invariably lead to an exception.
+ */
+ MonoError error;
+ error_init (&error);
+ mono_cominterop_get_interface_missing_error (&error, method);
+ mono_mb_emit_exception_for_error (mb, &error);
+ mono_error_cleanup (&error);
+ }
else {
static MonoMethod * ThrowExceptionForHR = NULL;
MonoMethod *adjusted_method;
/**
* mono_cominterop_get_invoke:
- * @method: managed method
- *
- * Returns: the generated method that calls the underlying __ComObject
+ * \param method managed method
+ * \returns the generated method that calls the underlying \c __ComObject
* rather than the proxy object.
*/
MonoMethod *
for (i = 1; i <= sig->param_count; i++)
mono_mb_emit_ldarg (mb, i);
- if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
+ if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || mono_class_is_interface (method->klass)) {
MonoMethod * native_wrapper = mono_cominterop_get_native_wrapper(method);
mono_mb_emit_managed_call (mb, native_wrapper, NULL);
}
static void*
cominterop_get_idispatch_for_object (MonoObject* object, MonoError *error)
{
- mono_error_init (error);
+ error_init (error);
if (!object)
return NULL;
ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
{
#ifndef DISABLE_COM
- return cominterop_get_com_slot_for_method (m->method);
+ MonoError error;
+ int slot = cominterop_get_com_slot_for_method (m->method, &error);
+ mono_error_assert_ok (&error);
+ return slot;
#else
g_assert_not_reached ();
#endif
GList *ccw_list, *ccw_list_item;
MonoCustomAttrInfo *cinfo = NULL;
- mono_error_init (error);
+ error_init (error);
if (!object)
return NULL;
/**
* mono_marshal_free_ccw:
- * @object: the mono object
- *
- * Returns: whether the object had a CCW
+ * \param object the mono object
+ * \returns whether the object had a CCW
*/
gboolean
mono_marshal_free_ccw (MonoObject* object)
static int
cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv, MonoError *error)
{
- mono_error_init (error);
+ error_init (error);
#ifdef HOST_WIN32
if (!ccw->free_marshaler) {
int ret = 0;
{
MonoString * res = NULL;
- mono_error_init (error);
+ error_init (error);
if (!bstr)
return NULL;
mono_string_from_bstr_checked (gpointer bstr, MonoError *error)
{
MonoString *res = NULL;
- mono_error_init (error);
+ error_init (error);
if (!bstr)
return NULL;
#ifdef HOST_WIN32
{
mono_free_bstr (ptr);
}
+
+void*
+mono_cominterop_get_com_interface (MonoObject *object, MonoClass *ic, MonoError *error)
+{
+ error_init (error);
+
+#ifndef DISABLE_COM
+ if (!object)
+ return NULL;
+
+ if (cominterop_object_is_rcw (object)) {
+ MonoClass *klass = NULL;
+ MonoRealProxy* real_proxy = NULL;
+ if (!object)
+ return NULL;
+ klass = mono_object_class (object);
+ if (!mono_class_is_transparent_proxy (klass)) {
+ mono_error_set_invalid_operation (error, "Class is not transparent");
+ return NULL;
+ }
+
+ real_proxy = ((MonoTransparentProxy*)object)->rp;
+ if (!real_proxy) {
+ mono_error_set_invalid_operation (error, "RealProxy is null");
+ return NULL;
+ }
+
+ klass = mono_object_class (real_proxy);
+ if (klass != mono_class_get_interop_proxy_class ()) {
+ mono_error_set_invalid_operation (error, "Object is not a proxy");
+ return NULL;
+ }
+
+ if (!((MonoComInteropProxy*)real_proxy)->com_object) {
+ mono_error_set_invalid_operation (error, "Proxy points to null COM object");
+ return NULL;
+ }
+
+ void* com_itf = cominterop_get_interface_checked (((MonoComInteropProxy*)real_proxy)->com_object, ic, error);
+ return com_itf;
+ }
+ else {
+ void* ccw_entry = cominterop_get_ccw_checked (object, ic, error);
+ return ccw_entry;
+ }
+#else
+ g_assert_not_reached ();
+#endif
+}
projects / mono.git / blobdiff