mirror of
https://github.com/yuzu-emu/unicorn
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9e999acc83
After recent changes, the only remaining use of
visit_start_implicit_struct() is for allocating the space needed
when visiting an alternate. Since the term 'implicit struct' is
hard to explain, rename the function to its current usage. While
at it, we can merge the functionality of visit_get_next_type()
into the same function, making it more like visit_start_struct().
Generated code is now slightly smaller:
| {
| Error *err = NULL;
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|- visit_start_implicit_struct(v, (void**) obj, sizeof(BlockdevRef), &err);
|+ visit_start_alternate(v, name, (GenericAlternate **)obj, sizeof(**obj),
|+ true, &err);
| if (err) {
| goto out;
| }
|- visit_get_next_type(v, name, &(*obj)->type, true, &err);
|- if (err) {
|- goto out_obj;
|- }
| switch ((*obj)->type) {
| case QTYPE_QDICT:
| visit_start_struct(v, name, NULL, 0, &err);
...
| }
|-out_obj:
|- visit_end_implicit_struct(v);
|+ visit_end_alternate(v);
| out:
| error_propagate(errp, err);
| }
Backports commit dbf11922622685934bfb41e7cf2be9bd4a0405c0 from qemu
72 lines
2.3 KiB
C
72 lines
2.3 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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/*
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* There are three classes of visitors; setting the class determines
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* how QAPI enums are visited, as well as what additional restrictions
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* can be asserted.
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*/
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typedef enum VisitorType {
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VISITOR_INPUT,
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VISITOR_OUTPUT,
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VISITOR_DEALLOC,
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} VisitorType;
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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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size_t size, Error **errp);
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void (*end_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, size_t size);
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void (*end_list)(Visitor *v);
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/* Optional, needed for input and dealloc visitors. */
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void (*start_alternate)(Visitor *v, const char *name,
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GenericAlternate **obj, size_t size,
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bool promote_int, Error **errp);
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/* Optional, needed for dealloc visitor. */
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void (*end_alternate)(Visitor *v);
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/* May be NULL; only needed for input visitors. */
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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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/* Must be set */
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VisitorType type;
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};
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#endif
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