From 6fcba26ea6c695628fa701aee0e8cf78141ba8d0 Mon Sep 17 00:00:00 2001
From: Nikolaj Bjorner <nbjorner@microsoft.com>
Date: Sun, 12 Feb 2017 09:56:49 -0800
Subject: [PATCH] make parameters accessible from expressions. Issue #896

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
---
 src/api/python/z3/z3.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/api/python/z3/z3.py b/src/api/python/z3/z3.py
index f1fde1720..6729d99b5 100644
--- a/src/api/python/z3/z3.py
+++ b/src/api/python/z3/z3.py
@@ -868,6 +868,9 @@ class ExprRef(AstRef):
         _args, sz = _to_ast_array((a, b))
         return BoolRef(Z3_mk_distinct(self.ctx_ref(), 2, _args), self.ctx)
 
+    def params(self):
+        return self.decl().params()
+
     def decl(self):
         """Return the Z3 function declaration associated with a Z3 application.