json-script.cpp

// SPDX-FileCopyrightText: 2012 Icinga GmbH <https://icinga.com>
// SPDX-License-Identifier: GPL-2.0-or-later

#include "base/dictionary.hpp"
#include "base/function.hpp"
#include "base/functionwrapper.hpp"
#include "base/scriptframe.hpp"
#include "base/initialize.hpp"
#include "base/json.hpp"

using namespace icinga;

static String JsonEncodeShim(const Value& value)
{
	return JsonEncode(value);
}

static Value JsonDecodeShim(const String& data)
{
	/* Wrap JsonDecode() so that the DSL function keeps its single-argument
	 * signature. JsonDecode()'s depthLimit parameter has a default value, but
	 * function pointers don't carry defaults, so binding it directly would make
	 * depthLimit a required argument and break Json.decode("..."). See #10913.
	 */
	return JsonDecode(data);
}

INITIALIZE_ONCE([]() {
	Namespace::Ptr jsonNS = new Namespace(true);

	/* Methods */
	jsonNS->Set("encode", new Function("Json#encode", JsonEncodeShim, { "value" }, true));
	jsonNS->Set("decode", new Function("Json#decode", JsonDecodeShim, { "value" }, true));

	jsonNS->Freeze();

	Namespace::Ptr systemNS = ScriptGlobal::Get("System");
	systemNS->Set("Json", jsonNS, true);
});