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/*
* Copyright (C) 2018 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef YAJL_CALLBACKS_HXX
#define YAJL_CALLBACKS_HXX
#include "util/Cast.hxx"
#include "util/StringView.hxx"
#include <yajl/yajl_parse.h>
namespace Yajl {
/**
* Helper template which allows implementing callbacks as regular
* methods. The "ctx" parameter is casted to the enclosing class.
*/
template<class T>
struct CallbacksWrapper {
static T &Cast(void *ctx) {
return *(T *)ctx;
}
static int Integer(void *ctx, long long integerVal) noexcept {
return Cast(ctx).Integer(integerVal);
}
static int String(void *ctx, const unsigned char *stringVal,
size_t stringLen) noexcept {
return Cast(ctx).String(StringView((const char *)stringVal,
stringLen));
}
static int StartMap(void *ctx) noexcept {
return Cast(ctx).StartMap();
}
static int MapKey(void *ctx, const unsigned char *key,
size_t stringLen) noexcept {
return Cast(ctx).MapKey(StringView((const char *)key,
stringLen));
}
static int EndMap(void *ctx) noexcept {
return Cast(ctx).EndMap();
}
static int StartArray(void *ctx) noexcept {
return Cast(ctx).StartArray();
}
static int EndArray(void *ctx) noexcept {
return Cast(ctx).EndArray();
}
};
} // namespace Yajl
#endif