80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
// Protocol Buffers - Google's data interchange format
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// Copyright 2023 Google LLC. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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// Users should include array.h or map.h instead.
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// IWYU pragma: private, include "upb/message/array.h"
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#ifndef UPB_MESSAGE_VALUE_H_
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#define UPB_MESSAGE_VALUE_H_
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#include <stdint.h>
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#include <string.h>
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#include "upb/base/string_view.h"
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#include "upb/message/internal/types.h"
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// Must be last.
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#include "upb/port/def.inc"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef union {
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bool bool_val;
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float float_val;
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double double_val;
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int32_t int32_val;
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int64_t int64_val;
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uint32_t uint32_val;
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uint64_t uint64_val;
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const struct upb_Array* array_val;
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const struct upb_Map* map_val;
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const struct upb_Message* msg_val;
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upb_StringView str_val;
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// EXPERIMENTAL: A tagged upb_Message*. Users must use this instead of
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// msg_val if unlinked sub-messages may possibly be in use. See the
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// documentation in kUpb_DecodeOption_ExperimentalAllowUnlinked for more
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// information.
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uintptr_t tagged_msg_val; // upb_TaggedMessagePtr
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// For an extension field, we are essentially treating ext->data (a
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// upb_MessageValue) as if it were a message with one field that lives at
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// offset 0. This works because upb_MessageValue is precisely one value that
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// can hold any type of data. Recall that an extension can be of any type
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// (scalar, repeated, or message). For a message extension, that will be a
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// single upb_Message* at offset 0 of the upb_MessageValue.
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struct upb_Message UPB_PRIVATE(ext_msg_val);
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} upb_MessageValue;
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UPB_API_INLINE upb_MessageValue upb_MessageValue_Zero(void) {
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upb_MessageValue zero;
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memset(&zero, 0, sizeof(zero));
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return zero;
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}
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typedef union {
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struct upb_Array* array;
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struct upb_Map* map;
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struct upb_Message* msg;
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} upb_MutableMessageValue;
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UPB_API_INLINE upb_MutableMessageValue upb_MutableMessageValue_Zero(void) {
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upb_MutableMessageValue zero;
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memset(&zero, 0, sizeof(zero));
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return zero;
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}
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#include "upb/port/undef.inc"
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#endif /* UPB_MESSAGE_VALUE_H_ */
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