From 45d021c7efa7ae90ba26d1b83923919903a52400 Mon Sep 17 00:00:00 2001
From: Ilya Lakhin <eliah.lakhin@gmail.com>
Date: Sat, 8 Aug 2020 17:55:58 +0700
Subject: [PATCH] Function names capturing as external variables bug

---
 src/parser.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/parser.rs b/src/parser.rs
index 8b3bf3ea..8c9c2940 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -1635,6 +1635,11 @@ fn parse_primary(
         Token::CharConstant(c) => Expr::CharConstant(Box::new((c, settings.pos))),
         Token::StringConstant(s) => Expr::StringConstant(Box::new((s.into(), settings.pos))),
         Token::Identifier(s) => {
+            // prevents capturing of the function call
+            #[cfg(not(feature = "no_closure"))]
+            if *next_token == Token::LeftParen || *next_token == Token::Bang {
+                state.allow_capture = false;
+            }
             let index = state.access_var(&s, settings.pos);
             Expr::Variable(Box::new(((s, settings.pos), None, 0, index)))
         }