type alias for hash table

1 files changed, 40 insertions, 36 deletions

diff --git a/hash_table.h b/hash_table.h
index 24814e4..4d52063 100644
--- a/hash_table.h
+++ b/hash_table.h
@@ -16,71 +16,73 @@ struct hash_table {
 };
 typedef struct hash_table HashTable;
 
-#define HASH_TABLE_DEF(K, V) \
+#define HASH_TABLE_DEF_AS(K, V, A) \
     typedef struct { \
         K key; \
         V val; \
-    } K##2##V##HashTableEntry; \
-    typedef K##2##V##HashTableEntry *K##2##V##HashTableIter; \
+    } A##Entry_; \
+    typedef A##Entry_ *A##Iter; \
     typedef struct { \
         HashTable ht; \
-    } K##2##V##HashTable; \
-    void K##2##V##HashTable_init(K##2##V##HashTable *self); \
-    K##2##V##HashTable K##2##V##HashTable_create(); \
-    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); \
+    } A; \
+    void A##_init(A *self); \
+    A A##_create(); \
+    bool A##_insert(A *self, K key, V value); \
+    void A##_remove(A *ht, A##Iter iter); \
+    V* A##_get(A *self, K key); \
+    A##Iter A##_find(A *self, K key); \
+    A##Iter A##_begin(A *self); \
+    A##Iter A##_next(A *self, A##Iter iter); \
+    void A##_free(A *self); \
+    A A##_move(A *self);
 
-#define HASH_TABLE_IMPL(K, V) \
-    static uint64_t K##2##V##HashTable_hash(void *vk) { \
+#define HASH_TABLE_DEF(K, V) HASH_TABLE_DEF_AS(K, V, K##2##V##HashTable)
+
+#define HASH_TABLE_IMPL_AS(K, V, A) \
+    static uint64_t A##_hash(void *vk) { \
         K *k = vk; \
         return K##_hash(*k); \
     } \
-    static bool K##2##V##HashTable_eq(void *vk1, void *vk2) { \
+    static bool A##_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); \
+    void A##_init(A *self) { \
+        init_hash_table(&self->ht, sizeof(A##Entry_), 16); \
     } \
-    K##2##V##HashTable K##2##V##HashTable_create() { \
-        K##2##V##HashTable self; \
-        K##2##V##HashTable_init(&self); \
+    A A##_create() { \
+        A self; \
+        A##_init(&self); \
         return self; \
     } \
-    bool K##2##V##HashTable_insert(K##2##V##HashTable *self, K key, V value) { \
-        K##2##V##HashTableEntry entry; \
+    bool A##_insert(A *self, K key, V value) { \
+        A##Entry_ entry; \
         entry.key = key; \
         entry.val = value; \
-        return hash_table_insert(&self->ht, &entry, K##2##V##HashTable_hash, K##2##V##HashTable_eq); \
+        return hash_table_insert(&self->ht, &entry, A##_hash, A##_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); \
+    A##Iter A##_find(A *self, K key) { \
+        return hash_table_find(&self->ht, &key, A##_hash, A##_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); \
+    V* A##_get(A *self, K key) { \
+        A##Entry_* entry = hash_table_find(&self->ht, &key, A##_hash, A##_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) { \
+    void A##_remove(A *self, A##Iter iter) { \
         hash_table_remove(&self->ht, iter); \
     } \
-    K##2##V##HashTableIter K##2##V##HashTable_begin(K##2##V##HashTable *self) { \
+    A##Iter A##_begin(A *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) { \
+    A##Iter A##_next(A *self, A##Iter iter) { \
         return hash_table_next(&self->ht, iter); \
     } \
-    void K##2##V##HashTable_free(K##2##V##HashTable *self) { \
+    void A##_free(A *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; \
+    A A##_move(A *self) { \
+        A dup; \
         dup.ht = self->ht; \
         self->ht.buf = NULL; \
         self->ht.flagbuf = NULL; \
@@ -88,7 +90,9 @@ typedef struct hash_table HashTable;
         self->ht.cap = 0; \
         self->ht.taken = 0; \
         return dup; \
-    } \
+    }
+
+#define HASH_TABLE_IMPL(K, V) HASH_TABLE_IMPL_AS(K, V, K##2##V##HashTable)
 
 HASH_TABLE_DEF(String, Int);
 HASH_TABLE_DEF(String, String);