145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#include "MEvent.h"
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#include "MType.h"
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#include "MClass.h"
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#if USE_MONO
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#include <ThirdParty/mono-2.0/mono/metadata/mono-debug.h>
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MEvent::MEvent(MonoEvent* monoEvent, const char* name, MClass* parentClass)
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: _monoEvent(monoEvent)
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, _addMethod(nullptr)
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, _removeMethod(nullptr)
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, _parentClass(parentClass)
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, _name(name)
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, _hasCachedAttributes(false)
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, _hasAddMonoMethod(true)
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, _hasRemoveMonoMethod(true)
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{
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#if BUILD_DEBUG
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// Validate input name
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ASSERT(StringUtils::Compare(name, mono_event_get_name(monoEvent)) == 0);
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#endif
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}
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#endif
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MType MEvent::GetType()
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{
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if (GetAddMethod() != nullptr)
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return GetAddMethod()->GetReturnType();
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if (GetRemoveMethod() != nullptr)
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return GetRemoveMethod()->GetReturnType();
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return MType();
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}
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MMethod* MEvent::GetAddMethod()
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{
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if (!_hasAddMonoMethod)
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return nullptr;
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if (_addMethod == nullptr)
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{
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#if USE_MONO
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auto addMonoMethod = mono_event_get_add_method(_monoEvent);
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if (addMonoMethod != nullptr)
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{
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_hasAddMonoMethod = true;
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return _addMethod = New<MMethod>(addMonoMethod, _parentClass);
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}
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#endif
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}
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return _addMethod;
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}
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MMethod* MEvent::GetRemoveMethod()
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{
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if (!_hasRemoveMonoMethod)
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return nullptr;
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if (_removeMethod == nullptr)
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{
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#if USE_MONO
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auto removeMonoMethod = mono_event_get_remove_method(_monoEvent);
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if (removeMonoMethod)
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{
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_hasRemoveMonoMethod = true;
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return _removeMethod = New<MMethod>(removeMonoMethod, _parentClass);
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}
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#endif
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}
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return _removeMethod;
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}
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bool MEvent::HasAttribute(MClass* monoClass) const
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{
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#if USE_MONO
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MonoClass* parentClass = mono_event_get_parent(_monoEvent);
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MonoCustomAttrInfo* attrInfo = mono_custom_attrs_from_event(parentClass, _monoEvent);
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if (attrInfo == nullptr)
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return false;
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const bool hasAttr = mono_custom_attrs_has_attr(attrInfo, monoClass->GetNative()) != 0;
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mono_custom_attrs_free(attrInfo);
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return hasAttr;
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#else
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return false;
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#endif
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}
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bool MEvent::HasAttribute() const
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{
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#if USE_MONO
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MonoClass* parentClass = mono_event_get_parent(_monoEvent);
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MonoCustomAttrInfo* attrInfo = mono_custom_attrs_from_event(parentClass, _monoEvent);
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if (attrInfo == nullptr)
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return false;
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if (attrInfo->num_attrs > 0)
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{
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mono_custom_attrs_free(attrInfo);
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return true;
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}
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mono_custom_attrs_free(attrInfo);
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return false;
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#else
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return false;
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#endif
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}
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MObject* MEvent::GetAttribute(MClass* monoClass) const
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{
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#if USE_MONO
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MonoClass* parentClass = mono_event_get_parent(_monoEvent);
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MonoCustomAttrInfo* attrInfo = mono_custom_attrs_from_event(parentClass, _monoEvent);
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if (attrInfo == nullptr)
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return nullptr;
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MonoObject* foundAttr = mono_custom_attrs_get_attr(attrInfo, monoClass->GetNative());
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mono_custom_attrs_free(attrInfo);
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return foundAttr;
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#else
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return nullptr;
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#endif
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}
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const Array<MObject*>& MEvent::GetAttributes()
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{
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if (_hasCachedAttributes)
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return _attributes;
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_hasCachedAttributes = true;
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#if USE_MONO
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MonoClass* parentClass = mono_event_get_parent(_monoEvent);
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MonoCustomAttrInfo* attrInfo = mono_custom_attrs_from_event(parentClass, _monoEvent);
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if (attrInfo == nullptr)
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return _attributes;
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MonoArray* monoAttributesArray = mono_custom_attrs_construct(attrInfo);
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const auto length = (uint32)mono_array_length(monoAttributesArray);
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_attributes.Resize(length);
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for (uint32 i = 0; i < length; i++)
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_attributes[i] = mono_array_get(monoAttributesArray, MonoObject *, i);
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mono_custom_attrs_free(attrInfo);
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#endif
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return _attributes;
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}
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