548 lines
17 KiB
C++
548 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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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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 = nullptr;
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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) : nullptr;
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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) : nullptr;
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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 = nullptr;
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MonoClassField *raw_field = nullptr;
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while ((raw_field = mono_class_get_fields(get_mono_ptr(), &iter)) != nullptr) {
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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, nullptr);
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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 nullptr;
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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 != nullptr);
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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 = nullptr;
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MonoMethod *raw_method = nullptr;
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while ((raw_method = mono_class_get_methods(get_mono_ptr(), &iter)) != nullptr) {
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StringName name = 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 he is 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, nullptr);
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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, nullptr);
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const MethodKey *k = nullptr;
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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 nullptr;
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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) != nullptr;
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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, int 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 nullptr;
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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 nullptr;
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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 = 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, int p_params_count) {
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ERR_FAIL_NULL_V(p_raw_method, nullptr);
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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 nullptr;
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ERR_FAIL_COND_V(mono_method_get_class(method) != mono_class, nullptr);
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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 nullptr;
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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 nullptr;
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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 = nullptr;
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MonoClassField *raw_field = nullptr;
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while ((raw_field = mono_class_get_fields(mono_class, &iter)) != nullptr) {
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StringName name = 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 nullptr;
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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 nullptr;
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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 = nullptr;
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MonoProperty *raw_property = nullptr;
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while ((raw_property = mono_class_get_properties(mono_class, &iter)) != nullptr) {
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StringName name = 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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void *iter = nullptr;
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MonoClass *raw_class = nullptr;
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while ((raw_class = mono_class_get_nested_types(mono_class, &iter)) != nullptr) {
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if (mono_class_is_delegate(raw_class)) {
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StringName name = 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(mono_class_get_namespace(raw_class), 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;
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return delegates_list;
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}
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const Vector<GDMonoMethod *> &GDMonoClass::get_all_methods() {
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if (!method_list_fetched) {
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void *iter = nullptr;
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MonoMethod *raw_method = nullptr;
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while ((raw_method = mono_class_get_methods(get_mono_ptr(), &iter)) != nullptr) {
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method_list.push_back(memnew(GDMonoMethod(mono_method_get_name(raw_method), raw_method)));
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}
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method_list_fetched = true;
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}
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return method_list;
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}
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GDMonoClass::GDMonoClass(const StringName &p_namespace, const StringName &p_name, MonoClass *p_class, GDMonoAssembly *p_assembly) {
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namespace_name = p_namespace;
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class_name = p_name;
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mono_class = p_class;
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assembly = p_assembly;
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attrs_fetched = false;
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attributes = nullptr;
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methods_fetched = false;
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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 = nullptr;
|
|
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]);
|
|
}
|
|
}
|