From c2a4e4effc81d8ab21bb014e34355643e5ca0da2 Mon Sep 17 00:00:00 2001
From: Damien George
Date: Mon, 11 May 2015 12:25:19 +0000
Subject: py: Convert hash API to use MP_UNARY_OP_HASH instead of ad-hoc
 function.

Hashing is now done using mp_unary_op function with MP_UNARY_OP_HASH as
the operator argument.  Hashing for int, str and bytes still go via
fast-path in mp_unary_op since they are the most common objects which
need to be hashed.

This lead to quite a bit of code cleanup, and should be more efficient
if anything.  It saves 176 bytes code space on Thumb2, and 360 bytes on
x86.

The only loss is that the error message "unhashable type" is now the
more generic "unsupported type for __hash__".
---
 py/runtime0.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'py/runtime0.h')

diff --git a/py/runtime0.h b/py/runtime0.h
index be9fc8d52..65c7df0ae 100644
--- a/py/runtime0.h
+++ b/py/runtime0.h
@@ -50,6 +50,7 @@
 typedef enum {
     MP_UNARY_OP_BOOL, // __bool__
     MP_UNARY_OP_LEN, // __len__
+    MP_UNARY_OP_HASH, // __hash__; must return a small int
     MP_UNARY_OP_POSITIVE,
     MP_UNARY_OP_NEGATIVE,
     MP_UNARY_OP_INVERT,
-- 
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