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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#ifndef FUNCTION_H
#define FUNCTION_H
#include "base/i2-base.hpp"
#include "base/function-ti.hpp"
#include "base/value.hpp"
#include "base/functionwrapper.hpp"
#include "base/scriptglobal.hpp"
#include <vector>
namespace icinga
{
/**
* A script function that can be used to execute a script task.
*
* @ingroup base
*/
class Function final : public ObjectImpl<Function>
{
public:
DECLARE_OBJECT(Function);
typedef std::function<Value (const std::vector<Value>& arguments)> Callback;
template<typename F>
Function(const String& name, F function, const std::vector<String>& args = std::vector<String>(),
bool side_effect_free = false, bool deprecated = false)
: Function(name, WrapFunction(function), args, side_effect_free, deprecated)
{ }
Value Invoke(const std::vector<Value>& arguments = std::vector<Value>());
Value InvokeThis(const Value& otherThis, const std::vector<Value>& arguments = std::vector<Value>());
bool IsSideEffectFree() const
{
return GetSideEffectFree();
}
bool IsDeprecated() const
{
return GetDeprecated();
}
static Object::Ptr GetPrototype();
Object::Ptr Clone() const override;
private:
Callback m_Callback;
Function(const String& name, Callback function, const std::vector<String>& args,
bool side_effect_free, bool deprecated);
};
/* Ensure that the priority is lower than the basic namespace initialization in scriptframe.cpp. */
#define REGISTER_FUNCTION(ns, name, callback, args) \
INITIALIZE_ONCE_WITH_PRIORITY([]() { \
Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), false); \
Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
nsp->SetAttribute(#name, new ConstEmbeddedNamespaceValue(sf)); \
}, 10)
#define REGISTER_SAFE_FUNCTION(ns, name, callback, args) \
INITIALIZE_ONCE_WITH_PRIORITY([]() { \
Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), true); \
Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
nsp->SetAttribute(#name, new ConstEmbeddedNamespaceValue(sf)); \
}, 10)
#define REGISTER_FUNCTION_NONCONST(ns, name, callback, args) \
INITIALIZE_ONCE_WITH_PRIORITY([]() { \
Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), false); \
Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
nsp->SetAttribute(#name, new EmbeddedNamespaceValue(sf)); \
}, 10)
#define REGISTER_SAFE_FUNCTION_NONCONST(ns, name, callback, args) \
INITIALIZE_ONCE_WITH_PRIORITY([]() { \
Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), true); \
Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
nsp->SetAttribute(#name, new EmbeddedNamespaceValue(sf)); \
}, 10)
}
#endif /* FUNCTION_H */
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