mono/mono_gd/gd_mono_property.cpp

197 lines
6.8 KiB
C++

/**************************************************************************/
/* gd_mono_property.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "gd_mono_property.h"
#include "gd_mono_cache.h"
#include "gd_mono_class.h"
#include "gd_mono_marshal.h"
#include "gd_mono_utils.h"
#include <mono/metadata/attrdefs.h>
GDMonoProperty::GDMonoProperty(MonoProperty *p_mono_property, GDMonoClass *p_owner) {
owner = p_owner;
mono_property = p_mono_property;
name = String::utf8(mono_property_get_name(mono_property));
MonoMethod *prop_method = mono_property_get_get_method(mono_property);
if (prop_method) {
MonoMethodSignature *getter_sig = mono_method_signature(prop_method);
MonoType *ret_type = mono_signature_get_return_type(getter_sig);
type.type_encoding = mono_type_get_type(ret_type);
MonoClass *ret_type_class = mono_class_from_mono_type(ret_type);
type.type_class = GDMono::get_singleton()->get_class(ret_type_class);
} else {
prop_method = mono_property_get_set_method(mono_property);
MonoMethodSignature *setter_sig = mono_method_signature(prop_method);
void *iter = NULL;
MonoType *param_raw_type = mono_signature_get_params(setter_sig, &iter);
type.type_encoding = mono_type_get_type(param_raw_type);
MonoClass *param_type_class = mono_class_from_mono_type(param_raw_type);
type.type_class = GDMono::get_singleton()->get_class(param_type_class);
}
param_buffer_size = GDMonoMarshal::variant_get_managed_unboxed_size(type);
attrs_fetched = false;
attributes = NULL;
}
GDMonoProperty::~GDMonoProperty() {
if (attributes) {
mono_custom_attrs_free(attributes);
}
}
bool GDMonoProperty::is_static() {
MonoMethod *prop_method = mono_property_get_get_method(mono_property);
if (prop_method == NULL)
prop_method = mono_property_get_set_method(mono_property);
return mono_method_get_flags(prop_method, NULL) & MONO_METHOD_ATTR_STATIC;
}
IMonoClassMember::Visibility GDMonoProperty::get_visibility() {
MonoMethod *prop_method = mono_property_get_get_method(mono_property);
if (prop_method == NULL)
prop_method = mono_property_get_set_method(mono_property);
switch (mono_method_get_flags(prop_method, NULL) & MONO_METHOD_ATTR_ACCESS_MASK) {
case MONO_METHOD_ATTR_PRIVATE:
return IMonoClassMember::PRIVATE;
case MONO_METHOD_ATTR_FAM_AND_ASSEM:
return IMonoClassMember::PROTECTED_AND_INTERNAL;
case MONO_METHOD_ATTR_ASSEM:
return IMonoClassMember::INTERNAL;
case MONO_METHOD_ATTR_FAMILY:
return IMonoClassMember::PROTECTED;
case MONO_METHOD_ATTR_PUBLIC:
return IMonoClassMember::PUBLIC;
default:
ERR_FAIL_V(IMonoClassMember::PRIVATE);
}
}
bool GDMonoProperty::has_attribute(GDMonoClass *p_attr_class) {
ERR_FAIL_NULL_V(p_attr_class, false);
if (!attrs_fetched)
fetch_attributes();
if (!attributes)
return false;
return mono_custom_attrs_has_attr(attributes, p_attr_class->get_mono_ptr());
}
MonoObject *GDMonoProperty::get_attribute(GDMonoClass *p_attr_class) {
ERR_FAIL_NULL_V(p_attr_class, NULL);
if (!attrs_fetched)
fetch_attributes();
if (!attributes)
return NULL;
return mono_custom_attrs_get_attr(attributes, p_attr_class->get_mono_ptr());
}
void GDMonoProperty::fetch_attributes() {
ERR_FAIL_COND(attributes != NULL);
attributes = mono_custom_attrs_from_property(owner->get_mono_ptr(), mono_property);
attrs_fetched = true;
}
bool GDMonoProperty::has_getter() {
return mono_property_get_get_method(mono_property) != NULL;
}
bool GDMonoProperty::has_setter() {
return mono_property_get_set_method(mono_property) != NULL;
}
void GDMonoProperty::set_value_from_variant(MonoObject *p_object, const Variant &p_value, MonoException **r_exc) {
uint8_t *buffer = (uint8_t *)alloca(param_buffer_size);
unsigned int offset = 0;
void *params[1] = {
GDMonoMarshal::variant_to_managed_unboxed(p_value, type, buffer, offset)
};
#ifdef DEBUG_ENABLED
CRASH_COND(offset != param_buffer_size);
#endif
MonoException *exc = NULL;
GDMonoUtils::property_set_value(mono_property, p_object, params, &exc);
if (exc) {
if (r_exc) {
*r_exc = exc;
} else {
GDMonoUtils::set_pending_exception(exc);
}
}
}
MonoObject *GDMonoProperty::get_value(MonoObject *p_object, MonoException **r_exc) {
MonoException *exc = NULL;
MonoObject *ret = GDMonoUtils::property_get_value(mono_property, p_object, NULL, &exc);
if (exc) {
ret = NULL;
if (r_exc) {
*r_exc = exc;
} else {
GDMonoUtils::set_pending_exception(exc);
}
}
return ret;
}
bool GDMonoProperty::get_bool_value(MonoObject *p_object) {
return (bool)GDMonoMarshal::unbox<MonoBoolean>(get_value(p_object));
}
int GDMonoProperty::get_int_value(MonoObject *p_object) {
return GDMonoMarshal::unbox<int32_t>(get_value(p_object));
}
String GDMonoProperty::get_string_value(MonoObject *p_object) {
MonoObject *val = get_value(p_object);
return GDMonoMarshal::mono_string_to_godot((MonoString *)val);
}