Added an explicit index type for object IDs.

diff --git a/didex/index.py b/didex/index.py
index 4906b46..65b1b12 100644 (file)
--- a/didex/index.py
+++ b/didex/index.py
@@ -2,7 +2,7 @@ import struct, contextlib, math
 from . import db, lib
 from .db import bd, txnfun, dloopfun
 
-__all__ = ["maybe", "t_int", "t_uint", "t_float", "t_str", "ordered"]
+__all__ = ["maybe", "t_int", "t_uint", "t_dbid", "t_float", "t_str", "ordered"]
 
 deadlock = bd.DBLockDeadlockError
 notfound = bd.DBNotFoundError
@@ -134,6 +134,7 @@ def floatcmp(a, b):
 
 t_int = simpletype.struct(">q")
 t_uint = simpletype.struct(">Q")
+t_dbid = t_uint
 t_float = simpletype.struct(">d")
 t_float.compare = floatcmp
 t_str = simpletype((lambda ob: ob.encode("utf-8")), (lambda dat: dat.decode("utf-8")))