godot/modules/mono/mono_gd/gd_mono_cache.cpp

/*************************************************************************/
/*  gd_mono_cache.cpp                                                    */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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#include "gd_mono_cache.h"

#include "core/error/error_macros.h"

namespace GDMonoCache {

ManagedCallbacks managed_callbacks;
bool godot_api_cache_updated = false;

void update_godot_api_cache(const ManagedCallbacks &p_managed_callbacks) {
	int checked_count = 0;

#define CHECK_CALLBACK_NOT_NULL_IMPL(m_var, m_class, m_method)                             \
	{                                                                                      \
		ERR_FAIL_COND_MSG(m_var == nullptr,                                                \
				"Mono Cache: Managed callback for '" #m_class "_" #m_method "' is null."); \
		checked_count += 1;                                                                \
	}

#define CHECK_CALLBACK_NOT_NULL(m_class, m_method) CHECK_CALLBACK_NOT_NULL_IMPL(p_managed_callbacks.m_class##_##m_method, m_class, m_method)

	CHECK_CALLBACK_NOT_NULL(SignalAwaiter, SignalCallback);
	CHECK_CALLBACK_NOT_NULL(DelegateUtils, InvokeWithVariantArgs);
	CHECK_CALLBACK_NOT_NULL(DelegateUtils, DelegateEquals);
	CHECK_CALLBACK_NOT_NULL(DelegateUtils, TrySerializeDelegateWithGCHandle);
	CHECK_CALLBACK_NOT_NULL(DelegateUtils, TryDeserializeDelegateWithGCHandle);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, FrameCallback);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, CreateManagedForGodotObjectBinding);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, CreateManagedForGodotObjectScriptInstance);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, GetScriptNativeName);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, SetGodotObjectPtr);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, RaiseEventSignal);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, ScriptIsOrInherits);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, AddScriptBridge);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, GetOrCreateScriptBridgeForPath);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, RemoveScriptBridge);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, TryReloadRegisteredScriptWithClass);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, UpdateScriptClassInfo);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, SwapGCHandleForType);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, GetPropertyInfoList);
	CHECK_CALLBACK_NOT_NULL(ScriptManagerBridge, GetPropertyDefaultValues);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, Call);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, Set);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, Get);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, CallDispose);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, CallToString);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, HasMethodUnknownParams);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, SerializeState);
	CHECK_CALLBACK_NOT_NULL(CSharpInstanceBridge, DeserializeState);
	CHECK_CALLBACK_NOT_NULL(GCHandleBridge, FreeGCHandle);
	CHECK_CALLBACK_NOT_NULL(DebuggingUtils, GetCurrentStackInfo);
	CHECK_CALLBACK_NOT_NULL(DisposablesTracker, OnGodotShuttingDown);
	CHECK_CALLBACK_NOT_NULL(GD, OnCoreApiAssemblyLoaded);

	managed_callbacks = p_managed_callbacks;

	// It's easy to forget to add new callbacks here, so this should help
	if (checked_count * sizeof(void *) != sizeof(ManagedCallbacks)) {
		int missing_count = (sizeof(ManagedCallbacks) / sizeof(void *)) - checked_count;
		WARN_PRINT("The presence of " + itos(missing_count) + " callback(s) was not validated");
	}

	godot_api_cache_updated = true;
}
} // namespace GDMonoCache