LV2Utils.h

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/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  @file LV2Utils.h
 
  @brief RAII for lv2 resources
 
  Paul Licameli split from LV2Symbols.h
 
*********************************************************************/
 
#ifndef __AUDACITY__LV2__UTILS__
#define __AUDACITY__LV2__UTILS__
 
#include <memory>
#include <wx/string.h>
#include "lilv/lilv.h" // for lilv_free
 
template<typename Type, void (*f)(Type*)>
struct Lilv_deleter { void operator()(Type *p) noexcept { f(p); } };
 
template<typename Type, void (*f)(Type*)>
using Lilv_ptr = std::unique_ptr<Type, Lilv_deleter<Type, f>>;
 
static inline void free_chars (char *p) { lilv_free(p); }
using LilvCharsPtr = Lilv_ptr<char, free_chars>;
 
using LilvNodePtr = Lilv_ptr<LilvNode, lilv_node_free>;
 
inline wxString LilvString(const LilvNode *node)
{
   return wxString::FromUTF8(lilv_node_as_string(node));
};
 
inline wxString LilvStringMove(LilvNode *node)
{
   LilvNodePtr temp{ node };
   wxString str = LilvString(node);
   return str;
};
 
#endif