[parser] storing address_parser_context on the parser struct itself so it doesn't have to be allocated every time

src/address_parser.c

@@ -287,6 +287,11 @@ bool address_parser_load(char *dir) {
 
     fclose(postal_codes_file);
 
+    parser->context = address_parser_context_new();
+    if (parser->context == NULL) {
+        goto exit_address_parser_created;
+    }
+
     char_array_destroy(path);
     return true;
 
@@ -305,6 +310,10 @@ void address_parser_destroy(address_parser_t *self) {
         crf_destroy(self->model.crf);
     }
 
+    if (self->context != NULL) {
+        address_parser_context_destroy(self->context);
+    }
+
     if (self->vocab != NULL) {
         trie_destroy(self->vocab);
     }
@@ -1642,15 +1651,17 @@ libpostal_address_parser_response_t *address_parser_response_new(void) {
     return response;
 }
 
-libpostal_address_parser_response_t *address_parser_parse(char *address, char *language, char *country, address_parser_context_t *context) {
-    if (address == NULL || context == NULL) return NULL;
+libpostal_address_parser_response_t *address_parser_parse(char *address, char *language, char *country) {
+    if (address == NULL) return NULL;
 
     address_parser_t *parser = get_address_parser();
-    if (parser == NULL) {
+    if (parser == NULL || parser->context == NULL) {
         log_error("parser is not setup, call libpostal_setup_address_parser()\n");
         return NULL;
     }
 
+    address_parser_context_t *context = parser->context;
+
     char *normalized = address_parser_normalize_string(address);
     bool is_normalized = normalized != NULL;
     if (!is_normalized) {