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// 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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#ifndef UPB_MESSAGE_ARRAY_H_
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#define UPB_MESSAGE_ARRAY_H_
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#include <stddef.h>
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#include "upb/base/descriptor_constants.h"
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#include "upb/mem/arena.h"
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#include "upb/message/value.h" // IWYU pragma: export
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// Must be last.
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#include "upb/port/def.inc"
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typedef struct upb_Array upb_Array;
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Creates a new array on the given arena that holds elements of this type.
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UPB_API upb_Array* upb_Array_New(upb_Arena* a, upb_CType type);
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// Returns the number of elements in the array.
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UPB_API size_t upb_Array_Size(const upb_Array* arr);
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// Returns the given element, which must be within the array's current size.
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UPB_API upb_MessageValue upb_Array_Get(const upb_Array* arr, size_t i);
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// Sets the given element, which must be within the array's current size.
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UPB_API void upb_Array_Set(upb_Array* arr, size_t i, upb_MessageValue val);
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// Appends an element to the array. Returns false on allocation failure.
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UPB_API bool upb_Array_Append(upb_Array* array, upb_MessageValue val,
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upb_Arena* arena);
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// Moves elements within the array using memmove().
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// Like memmove(), the source and destination elements may be overlapping.
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UPB_API void upb_Array_Move(upb_Array* array, size_t dst_idx, size_t src_idx,
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size_t count);
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// Inserts one or more empty elements into the array.
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// Existing elements are shifted right.
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// The new elements have undefined state and must be set with `upb_Array_Set()`.
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// REQUIRES: `i <= upb_Array_Size(arr)`
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UPB_API bool upb_Array_Insert(upb_Array* array, size_t i, size_t count,
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upb_Arena* arena);
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// Deletes one or more elements from the array.
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// Existing elements are shifted left.
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// REQUIRES: `i + count <= upb_Array_Size(arr)`
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UPB_API void upb_Array_Delete(upb_Array* array, size_t i, size_t count);
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// Changes the size of a vector. New elements are initialized to NULL/0.
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// Returns false on allocation failure.
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UPB_API bool upb_Array_Resize(upb_Array* array, size_t size, upb_Arena* arena);
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// Returns pointer to array data.
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UPB_API const void* upb_Array_DataPtr(const upb_Array* arr);
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// Returns mutable pointer to array data.
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UPB_API void* upb_Array_MutableDataPtr(upb_Array* arr);
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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_ARRAY_H_ */
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