From aae063b9ad74071437d29baa20d6ba58f0d881e4 Mon Sep 17 00:00:00 2001
From: Henrixounez <henrix.ounez@yahoo.fr>
Date: Sun, 18 Aug 2019 17:45:56 +0200
Subject: [PATCH] repl: dont save line if last compilation errored

---
 compiler/main.v                       | 4 +++-
 compiler/tests/repl/error_nosave.repl | 5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 compiler/tests/repl/error_nosave.repl

diff --git a/compiler/main.v b/compiler/main.v
index d4bff60ac0..c2cb7026ae 100644
--- a/compiler/main.v
+++ b/compiler/main.v
@@ -1375,7 +1375,9 @@ fn run_repl() []string {
 			s := os.exec('$vexe run $temp_file -repl') or {
 				panic(err)
 			}
-			lines << line
+			if !s.exit_code {
+				lines << line
+			}
 			vals := s.output.split('\n')
 			for i:=0; i<vals.len; i++ {
 				println(vals[i])
diff --git a/compiler/tests/repl/error_nosave.repl b/compiler/tests/repl/error_nosave.repl
new file mode 100644
index 0000000000..6d197193d1
--- /dev/null
+++ b/compiler/tests/repl/error_nosave.repl
@@ -0,0 +1,5 @@
+a
+33
+===output===
+.vrepl_temp.v:2 undefined: `a`
+33