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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QJNITYPES_H
#define QJNITYPES_H
#if defined(Q_QDOC) || defined(Q_OS_ANDROID)
#include <QtCore/qjnitypes_impl.h>
#include <QtCore/qjniobject.h>
QT_BEGIN_NAMESPACE
namespace QtJniTypes
{
// A generic thin wrapper around jobject, convertible to jobject.
// We need this as a baseclass so that QJniObject can be implicitly
// constructed from the various subclasses. We can also pass instances
// of this type (or of any of the generated subclasses) as if it was
// a jobject.
struct Object
{
jobject _object;
constexpr operator jobject() const { return _object; }
operator QJniObject() const { return QJniObject(_object); }
};
} // namespace QtJniTypes
#define Q_DECLARE_JNI_TYPE_HELPER(Type) \
namespace QtJniTypes { \
struct Type : Object \
{ \
constexpr Type(jobject o) noexcept : Object{o} {} \
}; \
} \
#define Q_DECLARE_JNI_TYPE(Type, Signature) \
Q_DECLARE_JNI_TYPE_HELPER(Type) \
template<> \
struct QtJniTypes::Traits<QtJniTypes::Type> { \
static constexpr auto signature() \
{ \
static_assert((Signature[0] == 'L' \
|| Signature[0] == '[') \
&& Signature[sizeof(Signature) - 2] == ';', \
"Type signature needs to start with 'L' or" \
" '[' and end with ';'"); \
return QtJniTypes::CTString(Signature); \
} \
}; \
#define Q_DECLARE_JNI_CLASS(Type, Signature) \
Q_DECLARE_JNI_TYPE_HELPER(Type) \
template<> \
struct QtJniTypes::Traits<QtJniTypes::Type> { \
static constexpr auto className() \
{ \
return QtJniTypes::CTString(Signature); \
} \
static constexpr auto signature() \
{ \
return QtJniTypes::CTString("L") \
+ className() \
+ QtJniTypes::CTString(";"); \
} \
}; \
#define Q_DECLARE_JNI_NATIVE_METHOD(...) \
QT_OVERLOADED_MACRO(QT_DECLARE_JNI_NATIVE_METHOD, __VA_ARGS__) \
#define QT_DECLARE_JNI_NATIVE_METHOD_2(Method, Name) \
namespace QtJniMethods { \
static constexpr auto Method##_signature = \
QtJniTypes::nativeMethodSignature(Method); \
static const JNINativeMethod Method##_method = { \
#Name, Method##_signature.data(), \
reinterpret_cast<void *>(Method) \
}; \
} \
#define QT_DECLARE_JNI_NATIVE_METHOD_1(Method) \
QT_DECLARE_JNI_NATIVE_METHOD_2(Method, Method) \
#define Q_JNI_NATIVE_METHOD(Method) QtJniMethods::Method##_method
#define Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(...) \
QT_OVERLOADED_MACRO(QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE, __VA_ARGS__) \
#define QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_2(Method, Name) \
static inline constexpr auto Method##_signature = QtJniTypes::nativeMethodSignature(Method); \
static inline const JNINativeMethod Method##_method = { \
#Name, Method##_signature.data(), reinterpret_cast<void *>(Method) \
};
#define QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_1(Method) \
QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_2(Method, Method) \
#define Q_JNI_NATIVE_SCOPED_METHOD(Method, Scope) Scope::Method##_method
QT_END_NAMESPACE
#endif // defined(Q_QDOC) || defined(Q_OS_ANDROID)
#endif // QJNITYPES_H
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