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#ifndef HTABLE_H_
#define HTABLE_H_
#include <stdbool.h>
#include <stdint.h>
#include "type_alias.h"
struct hash_table {
void *buf;
char *flagbuf;
int64_t size;
int64_t cap;
int64_t taken;
int64_t elemsz;
};
typedef struct hash_table HashTable;
#define HASH_TABLE_DEF(K, V) \
typedef struct { \
K key; \
V val; \
} K##2##V##HashTableEntry; \
typedef K##2##V##HashTableEntry *K##2##V##HashTableIter; \
typedef struct { \
HashTable ht; \
} K##2##V##HashTable; \
void K##2##V##HashTable_init(K##2##V##HashTable *self); \
bool K##2##V##HashTable_insert(K##2##V##HashTable *self, K key, V value); \
void K##2##V##HashTable_remove(K##2##V##HashTable *ht, K##2##V##HashTableIter iter); \
V* K##2##V##HashTable_get(K##2##V##HashTable *self, K key); \
K##2##V##HashTableIter K##2##V##HashTable_find(K##2##V##HashTable *self, K key); \
K##2##V##HashTableIter K##2##V##HashTable_begin(K##2##V##HashTable *self); \
K##2##V##HashTableIter K##2##V##HashTable_next(K##2##V##HashTable *self, K##2##V##HashTableIter iter); \
void K##2##V##HashTable_free(K##2##V##HashTable *self); \
K##2##V##HashTable K##2##V##HashTable_move(K##2##V##HashTable *self); \
#define HASH_TABLE_IMPL(K, V) \
static uint64_t K##2##V##HashTable_hash(void *vk) { \
K *k = vk; \
return K##_hash(*k); \
} \
static bool K##2##V##HashTable_eq(void *vk1, void *vk2) { \
K *k1 = vk1, *k2 = vk2; \
return K##_eq(*k1, *k2); \
} \
void K##2##V##HashTable_init(K##2##V##HashTable *self) { \
init_hash_table(&self->ht, sizeof(K##2##V##HashTableEntry), 16); \
} \
bool K##2##V##HashTable_insert(K##2##V##HashTable *self, K key, V value) { \
K##2##V##HashTableEntry entry; \
entry.key = key; \
entry.val = value; \
return hash_table_insert(&self->ht, &entry, K##2##V##HashTable_hash, K##2##V##HashTable_eq); \
} \
K##2##V##HashTableIter K##2##V##HashTable_find(K##2##V##HashTable *self, K key) { \
return hash_table_find(&self->ht, &key, K##2##V##HashTable_hash, K##2##V##HashTable_eq); \
} \
V* K##2##V##HashTable_get(K##2##V##HashTable *self, K key) { \
K##2##V##HashTableEntry* entry = hash_table_find(&self->ht, &key, K##2##V##HashTable_hash, K##2##V##HashTable_eq); \
if (entry == NULL) return NULL; \
return &(entry->val); \
} \
void K##2##V##HashTable_remove(K##2##V##HashTable *self, K##2##V##HashTableIter iter) { \
hash_table_remove(&self->ht, iter); \
} \
K##2##V##HashTableIter K##2##V##HashTable_begin(K##2##V##HashTable *self) { \
return hash_table_begin(&self->ht); \
} \
K##2##V##HashTableIter K##2##V##HashTable_next(K##2##V##HashTable *self, K##2##V##HashTableIter iter) { \
return hash_table_next(&self->ht, iter); \
} \
void K##2##V##HashTable_free(K##2##V##HashTable *self) { \
destroy_hash_table(&self->ht); \
} \
K##2##V##HashTable K##2##V##HashTable_move(K##2##V##HashTable *self) { \
K##2##V##HashTable dup; \
dup.ht = self->ht; \
self->ht.buf = NULL; \
self->ht.flagbuf = NULL; \
self->ht.size = 0; \
self->ht.cap = 0; \
self->ht.taken = 0; \
return dup; \
} \
HASH_TABLE_DEF(String, Int);
HASH_TABLE_DEF(String, String);
HASH_TABLE_DEF(String, Double);
HASH_TABLE_DEF(String, VoidPtr);
HASH_TABLE_DEF(Int, Int);
HASH_TABLE_DEF(Int, Double);
HASH_TABLE_DEF(VoidPtr, Int);
HASH_TABLE_DEF(VoidPtr, String);
void init_hash_table(HashTable *ht, int64_t elemsz, int64_t cap);
bool hash_table_insert(HashTable *ht, void *elem, uint64_t (*hash)(void*), bool (*eq)(void*, void*));
void hash_table_remove(HashTable *ht, void *iter);
void *hash_table_find(HashTable *ht, void *elem, uint64_t (*hash)(void*), bool (*eq)(void*, void*));
void *hash_table_begin(HashTable *ht);
void *hash_table_next(HashTable *ht, void *iter);
void destroy_hash_table(HashTable *ht);
#endif
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