use template for int64-map

Author: realead

pandas/_libs/khash_for_primitive_helper.pxi.in

@@ -4,24 +4,34 @@ Template for wrapping khash-tables for each primitive `dtype`
 WARNING: DO NOT edit .pxi FILE directly, .pxi is generated from .pxi.in
 """
 
+{{py:
 
+# name, c_type
+primitive_types = [('int64', 'int64_t')]
+}}
+
+{{for name, c_type in primitive_types}}
 
 cdef extern from "khash_python.h":
-    ctypedef struct kh_int64_t:
+    ctypedef struct kh_{{name}}_t:
         khint_t n_buckets, size, n_occupied, upper_bound
         uint32_t *flags
-        int64_t *keys
+        {{c_type}} *keys
         size_t *vals
 
-    kh_int64_t* kh_init_int64() nogil
-    void kh_destroy_int64(kh_int64_t*) nogil
-    void kh_clear_int64(kh_int64_t*) nogil
-    khint_t kh_get_int64(kh_int64_t*, int64_t) nogil
-    void kh_resize_int64(kh_int64_t*, khint_t) nogil
-    khint_t kh_put_int64(kh_int64_t*, int64_t, int*) nogil
-    void kh_del_int64(kh_int64_t*, khint_t) nogil
+    kh_{{name}}_t* kh_init_{{name}}() nogil
+    void kh_destroy_{{name}}(kh_{{name}}_t*) nogil
+    void kh_clear_{{name}}(kh_{{name}}_t*) nogil
+    khint_t kh_get_{{name}}(kh_{{name}}_t*, {{c_type}}) nogil
+    void kh_resize_{{name}}(kh_{{name}}_t*, khint_t) nogil
+    khint_t kh_put_{{name}}(kh_{{name}}_t*, {{c_type}}, int*) nogil
+    void kh_del_{{name}}(kh_{{name}}_t*, khint_t) nogil
+
+    bint kh_exist_{{name}}(kh_{{name}}_t*, khiter_t) nogil
 
-    bint kh_exist_int64(kh_int64_t*, khiter_t) nogil
+{{endfor}}
+
+cdef extern from "khash_python.h":
 
     ctypedef uint64_t khuint64_t