unicorn/qemu/qobject/qnull.c

/*
 * QNull
 *
 * Copyright (C) 2015 Red Hat, Inc.
 *
 * Authors:
 *  Markus Armbruster <armbru@redhat.com>
 *
 * This work is licensed under the terms of the GNU LGPL, version 2.1
 * or later.  See the COPYING.LIB file in the top-level directory.
 */

#include "qemu-common.h"
#include "qapi/qmp/qobject.h"

QNull qnull_ = {
    {
        QTYPE_QNULL,
        1,
    }
};
qobject: Add a special null QObject I'm going to fix the JSON parser to recognize null. The obvious representation of JSON null as (QObject *)NULL doesn't work, because the parser already uses it as an error value. Perhaps we should change it to free NULL for null, but that's more than I can do right now. Create a special null QObject instead. The existing QDict, QList, and QString all represent something that is a pointer in C and could therefore be associated with NULL. But right now, all three of these sub-types are always non-null once created, so the new null sentinel object is intentionally unrelated to them. Backports commit 481b002cc81ed7fc7b06e32e9d4d495d81739d14 from qemu 2018-02-20 02:22:11 +00:00			`/*`
			`* QNull`
			`*`
			`* Copyright (C) 2015 Red Hat, Inc.`
			`*`
			`* Authors:`
			`* Markus Armbruster <armbru@redhat.com>`
			`*`
			`* This work is licensed under the terms of the GNU LGPL, version 2.1`
			`* or later. See the COPYING.LIB file in the top-level directory.`
			`*/`

			`#include "qemu-common.h"`
			`#include "qapi/qmp/qobject.h"`

qapi: Separate type QNull from QObject Backports commit 006ca09f3027d86346fce707e9295975c6558f42 from qemu 2018-03-07 21:43:41 +00:00			`QNull qnull_ = {`
			`{`
			`QTYPE_QNULL,`
			`1,`
			`}`
qobject: Add a special null QObject I'm going to fix the JSON parser to recognize null. The obvious representation of JSON null as (QObject *)NULL doesn't work, because the parser already uses it as an error value. Perhaps we should change it to free NULL for null, but that's more than I can do right now. Create a special null QObject instead. The existing QDict, QList, and QString all represent something that is a pointer in C and could therefore be associated with NULL. But right now, all three of these sub-types are always non-null once created, so the new null sentinel object is intentionally unrelated to them. Backports commit 481b002cc81ed7fc7b06e32e9d4d495d81739d14 from qemu 2018-02-20 02:22:11 +00:00			`};`