From 983163f8ed0547d8efdaa8700d87291c0a19415c Mon Sep 17 00:00:00 2001
From: Arsene Perard-Gayot <perard@cg.uni-saarland.de>
Date: Mon, 20 Nov 2017 18:24:33 +0100
Subject: [PATCH] Fix bug when parsing nested lambdas

---
 src/impala/parser.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/impala/parser.cpp b/src/impala/parser.cpp
index 9cd4dae1e..0ff29791e 100644
--- a/src/impala/parser.cpp
+++ b/src/impala/parser.cpp
@@ -1138,6 +1138,7 @@ const FnExpr* Parser::parse_fn_expr(bool nested) {
         });
         // special case for nested lambdas (e.g. |x||y| x + y)
         if (accept(Token::OROR)) {
+            params.emplace_back(parse_return_param());
             auto body = parse_fn_expr(true);
             return new FnExpr(tracker, pe_expr, std::move(params), body);
         }