0b2a0d6bb2
As explained in the previous patches, matching argument order of 'name, &value' to JSON's "name":value makes sense. However, while the last two patches were easy with Coccinelle, I ended up doing this one all by hand. Now all the visitor callbacks match the main interface. The compiler is able to enforce that all clients match the changed interface in visitor-impl.h, even where two pointers are being swapped, because only one of the two pointers is const (if that were not the case, then C's looseness on treating 'char *' like 'void *' would have made review a bit harder). Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1454075341-13658-21-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
/*
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* Core Definitions for QAPI Visitor implementations
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*
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* Copyright (C) 2012-2016 Red Hat, Inc.
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*
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* Author: Paolo Bonizni <pbonzini@redhat.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#ifndef QAPI_VISITOR_IMPL_H
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#define QAPI_VISITOR_IMPL_H
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#include "qapi/error.h"
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#include "qapi/visitor.h"
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struct Visitor
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{
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/* Must be set */
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void (*start_struct)(Visitor *v, const char *name, void **obj,
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const char *kind, size_t size, Error **errp);
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void (*end_struct)(Visitor *v, Error **errp);
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void (*start_implicit_struct)(Visitor *v, void **obj, size_t size,
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Error **errp);
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void (*end_implicit_struct)(Visitor *v, Error **errp);
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void (*start_list)(Visitor *v, const char *name, Error **errp);
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GenericList *(*next_list)(Visitor *v, GenericList **list, Error **errp);
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void (*end_list)(Visitor *v, Error **errp);
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void (*type_enum)(Visitor *v, const char *name, int *obj,
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const char *const strings[], const char *kind,
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Error **errp);
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/* May be NULL; only needed for input visitors. */
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void (*get_next_type)(Visitor *v, const char *name, QType *type,
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bool promote_int, Error **errp);
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/* Must be set. */
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void (*type_int64)(Visitor *v, const char *name, int64_t *obj,
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Error **errp);
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/* Must be set. */
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void (*type_uint64)(Visitor *v, const char *name, uint64_t *obj,
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Error **errp);
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/* Optional; fallback is type_uint64(). */
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void (*type_size)(Visitor *v, const char *name, uint64_t *obj,
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Error **errp);
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/* Must be set. */
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void (*type_bool)(Visitor *v, const char *name, bool *obj, Error **errp);
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void (*type_str)(Visitor *v, const char *name, char **obj, Error **errp);
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void (*type_number)(Visitor *v, const char *name, double *obj,
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Error **errp);
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void (*type_any)(Visitor *v, const char *name, QObject **obj,
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Error **errp);
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/* May be NULL; most useful for input visitors. */
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void (*optional)(Visitor *v, const char *name, bool *present);
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bool (*start_union)(Visitor *v, bool data_present, Error **errp);
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};
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void input_type_enum(Visitor *v, const char *name, int *obj,
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const char *const strings[], const char *kind,
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Error **errp);
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void output_type_enum(Visitor *v, const char *name, int *obj,
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const char *const strings[], const char *kind,
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Error **errp);
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#endif
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