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/*
* Copyright (c) 2009-2021, Google LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Google LLC nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "upb/collections/map.h"
#include <string.h>
#include "upb/collections/map_internal.h"
#include "upb/mem/arena.h"
// Must be last.
#include "upb/port/def.inc"
// Strings/bytes are special-cased in maps.
char _upb_Map_CTypeSizeTable[12] = {
[kUpb_CType_Bool] = 1,
[kUpb_CType_Float] = 4,
[kUpb_CType_Int32] = 4,
[kUpb_CType_UInt32] = 4,
[kUpb_CType_Enum] = 4,
[kUpb_CType_Message] = sizeof(void*),
[kUpb_CType_Double] = 8,
[kUpb_CType_Int64] = 8,
[kUpb_CType_UInt64] = 8,
[kUpb_CType_String] = UPB_MAPTYPE_STRING,
[kUpb_CType_Bytes] = UPB_MAPTYPE_STRING,
};
upb_Map* upb_Map_New(upb_Arena* a, upb_CType key_type, upb_CType value_type) {
return _upb_Map_New(a, _upb_Map_CTypeSize(key_type),
_upb_Map_CTypeSize(value_type));
}
size_t upb_Map_Size(const upb_Map* map) { return _upb_Map_Size(map); }
bool upb_Map_Get(const upb_Map* map, upb_MessageValue key,
upb_MessageValue* val) {
return _upb_Map_Get(map, &key, map->key_size, val, map->val_size);
}
void upb_Map_Clear(upb_Map* map) { _upb_Map_Clear(map); }
upb_MapInsertStatus upb_Map_Insert(upb_Map* map, upb_MessageValue key,
upb_MessageValue val, upb_Arena* arena) {
UPB_ASSERT(arena);
return (upb_MapInsertStatus)_upb_Map_Insert(map, &key, map->key_size, &val,
map->val_size, arena);
}
bool upb_Map_Delete(upb_Map* map, upb_MessageValue key, upb_MessageValue* val) {
upb_value v;
const bool removed = _upb_Map_Delete(map, &key, map->key_size, &v);
if (val) _upb_map_fromvalue(v, val, map->val_size);
return removed;
}
bool upb_Map_Next(const upb_Map* map, upb_MessageValue* key,
upb_MessageValue* val, size_t* iter) {
upb_StringView k;
upb_value v;
const bool ok = upb_strtable_next2(&map->table, &k, &v, (intptr_t*)iter);
if (ok) {
_upb_map_fromkey(k, key, map->key_size);
_upb_map_fromvalue(v, val, map->val_size);
}
return ok;
}
UPB_API void upb_Map_SetEntryValue(upb_Map* map, size_t iter,
upb_MessageValue val) {
upb_value v;
_upb_map_tovalue(&val, map->val_size, &v, NULL);
upb_strtable_setentryvalue(&map->table, iter, v);
}
bool upb_MapIterator_Next(const upb_Map* map, size_t* iter) {
return _upb_map_next(map, iter);
}
bool upb_MapIterator_Done(const upb_Map* map, size_t iter) {
upb_strtable_iter i;
UPB_ASSERT(iter != kUpb_Map_Begin);
i.t = &map->table;
i.index = iter;
return upb_strtable_done(&i);
}
// Returns the key and value for this entry of the map.
upb_MessageValue upb_MapIterator_Key(const upb_Map* map, size_t iter) {
upb_strtable_iter i;
upb_MessageValue ret;
i.t = &map->table;
i.index = iter;
_upb_map_fromkey(upb_strtable_iter_key(&i), &ret, map->key_size);
return ret;
}
upb_MessageValue upb_MapIterator_Value(const upb_Map* map, size_t iter) {
upb_strtable_iter i;
upb_MessageValue ret;
i.t = &map->table;
i.index = iter;
_upb_map_fromvalue(upb_strtable_iter_value(&i), &ret, map->val_size);
return ret;
}
// EVERYTHING BELOW THIS LINE IS INTERNAL - DO NOT USE /////////////////////////
upb_Map* _upb_Map_New(upb_Arena* a, size_t key_size, size_t value_size) {
upb_Map* map = upb_Arena_Malloc(a, sizeof(upb_Map));
if (!map) return NULL;
upb_strtable_init(&map->table, 4, a);
map->key_size = key_size;
map->val_size = value_size;
return map;
}
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