1426cd3b3a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see". Backported from #70885.
557 lines
17 KiB
C++
557 lines
17 KiB
C++
/**************************************************************************/
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/* gd_mono_class.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "gd_mono_class.h"
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#include <mono/metadata/attrdefs.h>
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#include <mono/metadata/debug-helpers.h>
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#include "gd_mono_assembly.h"
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#include "gd_mono_cache.h"
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#include "gd_mono_marshal.h"
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String GDMonoClass::get_full_name(MonoClass *p_mono_class) {
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// mono_type_get_full_name is not exposed to embedders, but this seems to do the job
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MonoReflectionType *type_obj = mono_type_get_object(mono_domain_get(), get_mono_type(p_mono_class));
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MonoException *exc = NULL;
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MonoString *str = GDMonoUtils::object_to_string((MonoObject *)type_obj, &exc);
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UNHANDLED_EXCEPTION(exc);
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return GDMonoMarshal::mono_string_to_godot(str);
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}
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MonoType *GDMonoClass::get_mono_type(MonoClass *p_mono_class) {
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return mono_class_get_type(p_mono_class);
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}
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String GDMonoClass::get_full_name() const {
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return get_full_name(mono_class);
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}
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String GDMonoClass::get_type_desc() const {
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return GDMonoUtils::get_type_desc(get_mono_type());
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}
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MonoType *GDMonoClass::get_mono_type() const {
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// Careful, you cannot compare two MonoType*.
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// There is mono_metadata_type_equal, how is this different from comparing two MonoClass*?
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return get_mono_type(mono_class);
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}
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uint32_t GDMonoClass::get_flags() const {
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return mono_class_get_flags(mono_class);
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}
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bool GDMonoClass::is_static() const {
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uint32_t static_class_flags = MONO_TYPE_ATTR_ABSTRACT | MONO_TYPE_ATTR_SEALED;
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return (get_flags() & static_class_flags) == static_class_flags;
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}
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bool GDMonoClass::is_assignable_from(GDMonoClass *p_from) const {
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return mono_class_is_assignable_from(mono_class, p_from->mono_class);
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}
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StringName GDMonoClass::get_namespace() const {
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GDMonoClass *nesting_class = get_nesting_class();
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if (!nesting_class)
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return namespace_name;
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return nesting_class->get_namespace();
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}
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String GDMonoClass::get_name_for_lookup() const {
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GDMonoClass *nesting_class = get_nesting_class();
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if (!nesting_class)
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return class_name;
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return nesting_class->get_name_for_lookup() + "/" + class_name;
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}
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GDMonoClass *GDMonoClass::get_parent_class() const {
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MonoClass *parent_mono_class = mono_class_get_parent(mono_class);
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return parent_mono_class ? GDMono::get_singleton()->get_class(parent_mono_class) : NULL;
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}
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GDMonoClass *GDMonoClass::get_nesting_class() const {
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MonoClass *nesting_type = mono_class_get_nesting_type(mono_class);
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return nesting_type ? GDMono::get_singleton()->get_class(nesting_type) : NULL;
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}
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#ifdef TOOLS_ENABLED
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Vector<MonoClassField *> GDMonoClass::get_enum_fields() {
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bool class_is_enum = mono_class_is_enum(mono_class);
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ERR_FAIL_COND_V(!class_is_enum, Vector<MonoClassField *>());
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Vector<MonoClassField *> enum_fields;
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void *iter = NULL;
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MonoClassField *raw_field = NULL;
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while ((raw_field = mono_class_get_fields(get_mono_ptr(), &iter)) != NULL) {
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uint32_t field_flags = mono_field_get_flags(raw_field);
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// Enums have an instance field named value__ which holds the value of the enum.
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// Enum constants are static, so we will use this to ignore the value__ field.
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if (field_flags & MONO_FIELD_ATTR_PUBLIC && field_flags & MONO_FIELD_ATTR_STATIC) {
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enum_fields.push_back(raw_field);
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}
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}
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return enum_fields;
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}
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#endif
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bool GDMonoClass::has_attribute(GDMonoClass *p_attr_class) {
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#ifdef DEBUG_ENABLED
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ERR_FAIL_NULL_V(p_attr_class, false);
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#endif
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if (!attrs_fetched)
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fetch_attributes();
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if (!attributes)
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return false;
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return mono_custom_attrs_has_attr(attributes, p_attr_class->get_mono_ptr());
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}
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MonoObject *GDMonoClass::get_attribute(GDMonoClass *p_attr_class) {
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#ifdef DEBUG_ENABLED
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ERR_FAIL_NULL_V(p_attr_class, NULL);
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#endif
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if (!attrs_fetched)
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fetch_attributes();
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if (!attributes)
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return NULL;
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return mono_custom_attrs_get_attr(attributes, p_attr_class->get_mono_ptr());
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}
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void GDMonoClass::fetch_attributes() {
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ERR_FAIL_COND(attributes != NULL);
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attributes = mono_custom_attrs_from_class(get_mono_ptr());
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attrs_fetched = true;
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}
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void GDMonoClass::fetch_methods_with_godot_api_checks(GDMonoClass *p_native_base) {
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CRASH_COND(!CACHED_CLASS(GodotObject)->is_assignable_from(this));
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if (methods_fetched)
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return;
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void *iter = NULL;
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MonoMethod *raw_method = NULL;
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while ((raw_method = mono_class_get_methods(get_mono_ptr(), &iter)) != NULL) {
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StringName name = String::utf8(mono_method_get_name(raw_method));
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// get_method implicitly fetches methods and adds them to this->methods
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GDMonoMethod *method = get_method(raw_method, name);
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ERR_CONTINUE(!method);
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if (method->get_name() != name) {
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#ifdef DEBUG_ENABLED
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String fullname = method->get_ret_type_full_name() + " " + name + "(" + method->get_signature_desc(true) + ")";
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WARN_PRINT("Method '" + fullname + "' is hidden by Godot API method. Should be '" +
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method->get_full_name_no_class() + "'. In class '" + namespace_name + "." + class_name + "'.");
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#endif
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continue;
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}
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#ifdef DEBUG_ENABLED
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// For debug builds, we also fetched from native base classes as well before if this is not a native base class.
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// This allows us to warn the user here if they are using snake_case by mistake.
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if (p_native_base != this) {
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GDMonoClass *native_top = p_native_base;
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while (native_top) {
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GDMonoMethod *m = native_top->get_method(name, method->get_parameters_count());
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if (m && m->get_name() != name) {
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// found
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String fullname = m->get_ret_type_full_name() + " " + name + "(" + m->get_signature_desc(true) + ")";
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WARN_PRINT("Method '" + fullname + "' should be '" + m->get_full_name_no_class() +
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"'. In class '" + namespace_name + "." + class_name + "'.");
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break;
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}
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if (native_top == CACHED_CLASS(GodotObject))
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break;
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native_top = native_top->get_parent_class();
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}
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}
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#endif
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uint32_t flags = mono_method_get_flags(method->mono_method, NULL);
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if (!(flags & MONO_METHOD_ATTR_VIRTUAL))
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continue;
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// Virtual method of Godot Object derived type, let's try to find GodotMethod attribute
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GDMonoClass *top = p_native_base;
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while (top) {
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GDMonoMethod *base_method = top->get_method(name, method->get_parameters_count());
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if (base_method && base_method->has_attribute(CACHED_CLASS(GodotMethodAttribute))) {
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// Found base method with GodotMethod attribute.
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// We get the original API method name from this attribute.
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// This name must point to the virtual method.
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MonoObject *attr = base_method->get_attribute(CACHED_CLASS(GodotMethodAttribute));
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StringName godot_method_name = CACHED_FIELD(GodotMethodAttribute, methodName)->get_string_value(attr);
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#ifdef DEBUG_ENABLED
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CRASH_COND(godot_method_name == StringName());
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#endif
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MethodKey key = MethodKey(godot_method_name, method->get_parameters_count());
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GDMonoMethod **existing_method = methods.getptr(key);
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if (existing_method)
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memdelete(*existing_method); // Must delete old one
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methods.set(key, method);
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break;
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}
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if (top == CACHED_CLASS(GodotObject))
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break;
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top = top->get_parent_class();
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}
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}
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methods_fetched = true;
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}
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GDMonoMethod *GDMonoClass::get_fetched_method_unknown_params(const StringName &p_name) {
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ERR_FAIL_COND_V(!methods_fetched, NULL);
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const MethodKey *k = NULL;
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while ((k = methods.next(k))) {
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if (k->name == p_name)
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return methods.get(*k);
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}
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return NULL;
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}
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bool GDMonoClass::has_fetched_method_unknown_params(const StringName &p_name) {
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return get_fetched_method_unknown_params(p_name) != NULL;
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}
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bool GDMonoClass::implements_interface(GDMonoClass *p_interface) {
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return mono_class_implements_interface(mono_class, p_interface->get_mono_ptr());
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}
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bool GDMonoClass::has_public_parameterless_ctor() {
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GDMonoMethod *ctor = get_method(".ctor", 0);
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return ctor && ctor->get_visibility() == IMonoClassMember::PUBLIC;
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}
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GDMonoMethod *GDMonoClass::get_method(const StringName &p_name, uint16_t p_params_count) {
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MethodKey key = MethodKey(p_name, p_params_count);
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GDMonoMethod **match = methods.getptr(key);
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if (match)
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return *match;
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if (methods_fetched)
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return NULL;
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MonoMethod *raw_method = mono_class_get_method_from_name(mono_class, String(p_name).utf8().get_data(), p_params_count);
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if (raw_method) {
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GDMonoMethod *method = memnew(GDMonoMethod(p_name, raw_method));
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methods.set(key, method);
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return method;
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}
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return NULL;
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}
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GDMonoMethod *GDMonoClass::get_method(MonoMethod *p_raw_method) {
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MonoMethodSignature *sig = mono_method_signature(p_raw_method);
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int params_count = mono_signature_get_param_count(sig);
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StringName method_name = String::utf8(mono_method_get_name(p_raw_method));
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return get_method(p_raw_method, method_name, params_count);
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}
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GDMonoMethod *GDMonoClass::get_method(MonoMethod *p_raw_method, const StringName &p_name) {
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MonoMethodSignature *sig = mono_method_signature(p_raw_method);
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int params_count = mono_signature_get_param_count(sig);
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return get_method(p_raw_method, p_name, params_count);
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}
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GDMonoMethod *GDMonoClass::get_method(MonoMethod *p_raw_method, const StringName &p_name, uint16_t p_params_count) {
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ERR_FAIL_NULL_V(p_raw_method, NULL);
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MethodKey key = MethodKey(p_name, p_params_count);
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GDMonoMethod **match = methods.getptr(key);
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if (match)
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return *match;
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GDMonoMethod *method = memnew(GDMonoMethod(p_name, p_raw_method));
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methods.set(key, method);
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return method;
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}
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GDMonoMethod *GDMonoClass::get_method_with_desc(const String &p_description, bool p_include_namespace) {
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MonoMethodDesc *desc = mono_method_desc_new(p_description.utf8().get_data(), p_include_namespace);
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MonoMethod *method = mono_method_desc_search_in_class(desc, mono_class);
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mono_method_desc_free(desc);
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if (!method)
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return NULL;
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ERR_FAIL_COND_V(mono_method_get_class(method) != mono_class, NULL);
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return get_method(method);
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}
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GDMonoField *GDMonoClass::get_field(const StringName &p_name) {
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Map<StringName, GDMonoField *>::Element *result = fields.find(p_name);
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if (result)
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return result->value();
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if (fields_fetched)
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return NULL;
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MonoClassField *raw_field = mono_class_get_field_from_name(mono_class, String(p_name).utf8().get_data());
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if (raw_field) {
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GDMonoField *field = memnew(GDMonoField(raw_field, this));
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fields.insert(p_name, field);
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return field;
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}
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return NULL;
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}
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const Vector<GDMonoField *> &GDMonoClass::get_all_fields() {
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if (fields_fetched)
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return fields_list;
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void *iter = NULL;
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MonoClassField *raw_field = NULL;
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while ((raw_field = mono_class_get_fields(mono_class, &iter)) != NULL) {
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StringName name = String::utf8(mono_field_get_name(raw_field));
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Map<StringName, GDMonoField *>::Element *match = fields.find(name);
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if (match) {
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fields_list.push_back(match->get());
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} else {
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GDMonoField *field = memnew(GDMonoField(raw_field, this));
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fields.insert(name, field);
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fields_list.push_back(field);
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}
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}
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fields_fetched = true;
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return fields_list;
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}
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GDMonoProperty *GDMonoClass::get_property(const StringName &p_name) {
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Map<StringName, GDMonoProperty *>::Element *result = properties.find(p_name);
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if (result)
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return result->value();
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if (properties_fetched)
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return NULL;
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MonoProperty *raw_property = mono_class_get_property_from_name(mono_class, String(p_name).utf8().get_data());
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if (raw_property) {
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GDMonoProperty *property = memnew(GDMonoProperty(raw_property, this));
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properties.insert(p_name, property);
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return property;
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}
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return NULL;
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}
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const Vector<GDMonoProperty *> &GDMonoClass::get_all_properties() {
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if (properties_fetched)
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return properties_list;
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void *iter = NULL;
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MonoProperty *raw_property = NULL;
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while ((raw_property = mono_class_get_properties(mono_class, &iter)) != NULL) {
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StringName name = String::utf8(mono_property_get_name(raw_property));
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Map<StringName, GDMonoProperty *>::Element *match = properties.find(name);
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if (match) {
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properties_list.push_back(match->get());
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} else {
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GDMonoProperty *property = memnew(GDMonoProperty(raw_property, this));
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properties.insert(name, property);
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properties_list.push_back(property);
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}
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}
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properties_fetched = true;
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return properties_list;
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}
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const Vector<GDMonoClass *> &GDMonoClass::get_all_delegates() {
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if (delegates_fetched) {
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return delegates_list;
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}
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// If the class is generic we must use the generic type definition.
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MonoClass *klass = mono_class;
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if (mono_type_get_type(get_mono_type()) == MONO_TYPE_GENERICINST) {
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MonoReflectionType *reftype = mono_type_get_object(mono_domain_get(), get_mono_type());
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GDMonoUtils::Marshal::get_generic_type_definition(reftype, &reftype);
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MonoType *type = mono_reflection_type_get_type(reftype);
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klass = mono_class_from_mono_type(type);
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}
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void *iter = NULL;
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MonoClass *raw_class = NULL;
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while ((raw_class = mono_class_get_nested_types(klass, &iter)) != NULL) {
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if (mono_class_is_delegate(raw_class)) {
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StringName name = String::utf8(mono_class_get_name(raw_class));
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Map<StringName, GDMonoClass *>::Element *match = delegates.find(name);
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if (match) {
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delegates_list.push_back(match->get());
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} else {
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GDMonoClass *delegate = memnew(GDMonoClass(String::utf8(mono_class_get_namespace(raw_class)), String::utf8(mono_class_get_name(raw_class)), raw_class, assembly));
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delegates.insert(name, delegate);
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delegates_list.push_back(delegate);
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}
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}
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}
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|
delegates_fetched = true;
|
|
|
|
return delegates_list;
|
|
}
|
|
|
|
const Vector<GDMonoMethod *> &GDMonoClass::get_all_methods() {
|
|
if (!method_list_fetched) {
|
|
void *iter = NULL;
|
|
MonoMethod *raw_method = NULL;
|
|
while ((raw_method = mono_class_get_methods(get_mono_ptr(), &iter)) != NULL) {
|
|
method_list.push_back(memnew(GDMonoMethod(String::utf8(mono_method_get_name(raw_method)), raw_method)));
|
|
}
|
|
|
|
method_list_fetched = true;
|
|
}
|
|
|
|
return method_list;
|
|
}
|
|
|
|
GDMonoClass::GDMonoClass(const StringName &p_namespace, const StringName &p_name, MonoClass *p_class, GDMonoAssembly *p_assembly) {
|
|
namespace_name = p_namespace;
|
|
class_name = p_name;
|
|
mono_class = p_class;
|
|
assembly = p_assembly;
|
|
|
|
attrs_fetched = false;
|
|
attributes = NULL;
|
|
|
|
methods_fetched = false;
|
|
method_list_fetched = false;
|
|
fields_fetched = false;
|
|
properties_fetched = false;
|
|
delegates_fetched = false;
|
|
}
|
|
|
|
GDMonoClass::~GDMonoClass() {
|
|
if (attributes) {
|
|
mono_custom_attrs_free(attributes);
|
|
}
|
|
|
|
for (Map<StringName, GDMonoField *>::Element *E = fields.front(); E; E = E->next()) {
|
|
memdelete(E->value());
|
|
}
|
|
|
|
for (Map<StringName, GDMonoProperty *>::Element *E = properties.front(); E; E = E->next()) {
|
|
memdelete(E->value());
|
|
}
|
|
|
|
{
|
|
// Ugly workaround...
|
|
// We may have duplicated values, because we redirect snake_case methods to PascalCasel (only Godot API methods).
|
|
// This way, we end with both the snake_case name and the PascalCasel name paired with the same method.
|
|
// Therefore, we must avoid deleting the same pointer twice.
|
|
|
|
int offset = 0;
|
|
Vector<GDMonoMethod *> deleted_methods;
|
|
deleted_methods.resize(methods.size());
|
|
|
|
const MethodKey *k = NULL;
|
|
while ((k = methods.next(k))) {
|
|
GDMonoMethod *method = methods.get(*k);
|
|
|
|
if (method) {
|
|
for (int i = 0; i < offset; i++) {
|
|
if (deleted_methods[i] == method) {
|
|
// Already deleted
|
|
goto already_deleted;
|
|
}
|
|
}
|
|
|
|
deleted_methods.write[offset] = method;
|
|
++offset;
|
|
|
|
memdelete(method);
|
|
}
|
|
|
|
already_deleted:;
|
|
}
|
|
|
|
methods.clear();
|
|
}
|
|
|
|
for (int i = 0; i < method_list.size(); ++i) {
|
|
memdelete(method_list[i]);
|
|
}
|
|
}
|