2025-07-03 12:53:49 +04:00

255 lines
10 KiB
C++

#include "il2cpp-config.h"
#include "metadata/GenericMetadata.h"
#include "os/Atomic.h"
#include "os/Mutex.h"
#include "utils/Memory.h"
#include "vm/Class.h"
#include "vm/GenericClass.h"
#include "vm/Exception.h"
#include "vm/MetadataAlloc.h"
#include "vm/MetadataCache.h"
#include "vm/MetadataLock.h"
#include "il2cpp-class-internals.h"
#include "il2cpp-runtime-metadata.h"
#include "il2cpp-runtime-stats.h"
namespace il2cpp
{
namespace vm
{
void GenericClass::SetupMethods(Il2CppClass* genericInstanceType)
{
Il2CppClass* genericTypeDefinition = GenericClass::GetTypeDefinition(genericInstanceType->generic_class);
uint16_t methodCount = genericTypeDefinition->method_count;
IL2CPP_ASSERT(genericTypeDefinition->method_count == genericInstanceType->method_count);
if (methodCount == 0)
{
genericInstanceType->methods = NULL;
return;
}
const MethodInfo** methods = (const MethodInfo**)MetadataCalloc(methodCount, sizeof(MethodInfo*));
for (uint16_t methodIndex = 0; methodIndex < methodCount; ++methodIndex)
{
const MethodInfo* methodDefinition = genericTypeDefinition->methods[methodIndex];
methods[methodIndex] = metadata::GenericMetadata::Inflate(methodDefinition, GenericClass::GetContext(genericInstanceType->generic_class));
}
genericInstanceType->methods = methods;
il2cpp_runtime_stats.method_count += methodCount;
}
static void InflatePropertyDefinition(const PropertyInfo* propertyDefinition, PropertyInfo* newProperty, Il2CppClass* declaringClass, Il2CppGenericContext* context)
{
newProperty->attrs = propertyDefinition->attrs;
newProperty->parent = declaringClass;
newProperty->name = propertyDefinition->name;
newProperty->token = propertyDefinition->token;
if (propertyDefinition->get)
newProperty->get = metadata::GenericMetadata::Inflate(propertyDefinition->get, context);
if (propertyDefinition->set)
newProperty->set = metadata::GenericMetadata::Inflate(propertyDefinition->set, context);
}
void GenericClass::SetupProperties(Il2CppClass* genericInstanceType)
{
Il2CppClass* genericTypeDefinition = GenericClass::GetTypeDefinition(genericInstanceType->generic_class);
uint16_t propertyCount = genericTypeDefinition->property_count;
IL2CPP_ASSERT(genericTypeDefinition->property_count == genericInstanceType->property_count);
if (propertyCount == 0)
{
genericInstanceType->properties = NULL;
return;
}
PropertyInfo* properties = (PropertyInfo*)MetadataCalloc(propertyCount, sizeof(PropertyInfo));
PropertyInfo* property = properties;
for (uint16_t propertyIndex = 0; propertyIndex < propertyCount; ++propertyIndex)
{
InflatePropertyDefinition(genericTypeDefinition->properties + propertyIndex, property, genericInstanceType, GenericClass::GetContext(genericInstanceType->generic_class));
property++;
}
genericInstanceType->properties = properties;
}
static void InflateEventDefinition(const EventInfo* eventDefinition, EventInfo* newEvent, Il2CppClass* declaringClass, Il2CppGenericContext* context)
{
newEvent->eventType = metadata::GenericMetadata::InflateIfNeeded(eventDefinition->eventType, context, false);
newEvent->name = eventDefinition->name;
newEvent->parent = declaringClass;
newEvent->token = eventDefinition->token;
if (eventDefinition->add)
newEvent->add = metadata::GenericMetadata::Inflate(eventDefinition->add, context);
if (eventDefinition->raise)
newEvent->raise = metadata::GenericMetadata::Inflate(eventDefinition->raise, context);
if (eventDefinition->remove)
newEvent->remove = metadata::GenericMetadata::Inflate(eventDefinition->remove, context);
}
void GenericClass::SetupEvents(Il2CppClass* genericInstanceType)
{
Il2CppClass* genericTypeDefinition = GenericClass::GetTypeDefinition(genericInstanceType->generic_class);
uint16_t eventCount = genericTypeDefinition->event_count;
IL2CPP_ASSERT(genericTypeDefinition->event_count == genericInstanceType->event_count);
if (eventCount == 0)
{
genericInstanceType->events = NULL;
return;
}
EventInfo* events = (EventInfo*)MetadataCalloc(eventCount, sizeof(EventInfo));
EventInfo* event = events;
for (uint16_t eventIndex = 0; eventIndex < eventCount; ++eventIndex)
{
InflateEventDefinition(genericTypeDefinition->events + eventIndex, event, genericInstanceType, GenericClass::GetContext(genericInstanceType->generic_class));
event++;
}
genericInstanceType->events = events;
}
static FieldInfo* InflateFieldDefinition(const FieldInfo* fieldDefinition, FieldInfo* newField, Il2CppClass* declaringClass, Il2CppGenericContext* context)
{
newField->type = metadata::GenericMetadata::InflateIfNeeded(fieldDefinition->type, context, false);
newField->name = fieldDefinition->name;
newField->parent = declaringClass;
newField->offset = fieldDefinition->offset;
newField->token = fieldDefinition->token;
return newField;
}
void GenericClass::SetupFields(Il2CppClass* genericInstanceType)
{
Il2CppClass* genericTypeDefinition = GenericClass::GetTypeDefinition(genericInstanceType->generic_class);
uint16_t fieldCount = genericTypeDefinition->field_count;
IL2CPP_ASSERT(genericTypeDefinition->field_count == genericInstanceType->field_count);
if (fieldCount == 0)
{
genericInstanceType->fields = NULL;
return;
}
FieldInfo* fields = (FieldInfo*)MetadataCalloc(fieldCount, sizeof(FieldInfo));
FieldInfo* field = fields;
for (uint16_t fieldIndex = 0; fieldIndex < fieldCount; ++fieldIndex)
{
InflateFieldDefinition(genericTypeDefinition->fields + fieldIndex, field, genericInstanceType, GenericClass::GetContext(genericInstanceType->generic_class));
field++;
}
genericInstanceType->fields = fields;
}
Il2CppClass* GenericClass::GetClass(Il2CppGenericClass* gclass, bool throwOnError)
{
Il2CppClass* cachedClass = os::Atomic::LoadPointerRelaxed(&gclass->cached_class);
if (cachedClass)
return cachedClass;
return CreateClass(gclass, throwOnError);
}
Il2CppClass* GenericClass::CreateClass(Il2CppGenericClass *gclass, bool throwOnError)
{
Il2CppClass* definition = GetTypeDefinition(gclass);
if (definition == NULL)
{
if (throwOnError)
vm::Exception::Raise(vm::Exception::GetMaximumNestedGenericsException());
return NULL;
}
os::FastAutoLock lock(&g_MetadataLock);
if (!gclass->cached_class)
{
Il2CppClass* klass = (Il2CppClass*)MetadataCalloc(1, sizeof(Il2CppClass) + (sizeof(VirtualInvokeData) * definition->vtable_count));
klass->klass = klass;
klass->name = definition->name;
klass->namespaze = definition->namespaze;
klass->image = definition->image;
klass->flags = definition->flags;
//klass->type_token = definition->type_token;
klass->generic_class = gclass;
Il2CppClass* genericTypeDefinition = GenericClass::GetTypeDefinition(klass->generic_class);
Il2CppGenericContext* context = &klass->generic_class->context;
if (genericTypeDefinition->parent)
klass->parent = Class::FromIl2CppType(metadata::GenericMetadata::InflateIfNeeded(&genericTypeDefinition->parent->byval_arg, context, false));
if (genericTypeDefinition->declaringType)
klass->declaringType = Class::FromIl2CppType(metadata::GenericMetadata::InflateIfNeeded(&genericTypeDefinition->declaringType->byval_arg, context, false));
klass->this_arg.type = klass->byval_arg.type = IL2CPP_TYPE_GENERICINST;
klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
klass->this_arg.byref = true;
klass->byval_arg.valuetype = genericTypeDefinition->byval_arg.valuetype;
klass->event_count = definition->event_count;
klass->field_count = definition->field_count;
klass->interfaces_count = definition->interfaces_count;
klass->method_count = definition->method_count;
klass->property_count = definition->property_count;
klass->enumtype = definition->enumtype;
klass->element_class = klass->castClass = klass;
klass->has_cctor = definition->has_cctor;
klass->cctor_finished_or_no_cctor = !definition->has_cctor;
klass->has_finalize = definition->has_finalize;
klass->native_size = klass->thread_static_fields_offset = -1;
klass->token = definition->token;
klass->interopData = MetadataCache::GetInteropDataForType(&klass->byval_arg);
if (GenericClass::GetTypeDefinition(klass->generic_class) == il2cpp_defaults.generic_nullable_class)
{
klass->element_class = klass->castClass = Class::FromIl2CppType(klass->generic_class->context.class_inst->type_argv[0]);
klass->nullabletype = true;
}
if (klass->enumtype)
klass->element_class = klass->castClass = definition->element_class;
klass->is_import_or_windows_runtime = definition->is_import_or_windows_runtime;
// Do not update gclass->cached_class until `klass` is fully initialized
// And do so with an atomic barrier so no threads observer the writes out of order
il2cpp::os::Atomic::ExchangePointer(&gclass->cached_class, klass);
}
return gclass->cached_class;
}
Il2CppGenericContext* GenericClass::GetContext(Il2CppGenericClass *gclass)
{
return &gclass->context;
}
Il2CppClass* GenericClass::GetTypeDefinition(Il2CppGenericClass *gclass)
{
return MetadataCache::GetTypeInfoFromType(gclass->type);
}
bool GenericClass::IsEnum(Il2CppGenericClass *gclass)
{
return IsValueType(gclass) && GetTypeDefinition(gclass)->enumtype;
}
} /* namespace vm */
} /* namespace il2cpp */