From 25497aabb372eb3ca2b6a8cf0564c307d1f7afa7 Mon Sep 17 00:00:00 2001
From: TrollerOfHolland <Larsygortmaker@gmail.com>
Date: Thu, 23 Jun 2022 01:16:41 +0200
Subject: [PATCH] ASTree.cpp bugfix on line 1757, preventing error 'front
 called on empty vector'

---
 ASTree.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ASTree.cpp b/ASTree.cpp
index 62bb4eb..55d9c2b 100644
--- a/ASTree.cpp
+++ b/ASTree.cpp
@@ -1754,7 +1754,7 @@ PycRef<ASTNode> BuildFromCode(PycRef<PycCode> code, PycModule* mod)
                      * If it's a comprehension, the only POP_TOP should be
                      * a call to append the iter to the list.
                      */
-                    if (value.type() == ASTNode::NODE_CALL) {
+                    if (value.type() == ASTNode::NODE_CALL && !value.cast<ASTCall>()->pparams().empty() ) {
                         PycRef<ASTNode> res = value.cast<ASTCall>()->pparams().front();
 
                         stack.push(new ASTComprehension(res));