From 353de601585d69989a5fd76e56795dbcb12badc6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Pei=C3=9Fl?= <7underlines@gmail.com>
Date: Tue, 2 May 2023 21:54:57 +0200
Subject: [PATCH] examples: fix unset reader notice for the smtp/mail example
 (#17998)

---
 examples/smtp/mail.v | 4 ++--
 vlib/net/smtp/smtp.v | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/examples/smtp/mail.v b/examples/smtp/mail.v
index c26be33bdd..dddce815ec 100644
--- a/examples/smtp/mail.v
+++ b/examples/smtp/mail.v
@@ -31,6 +31,6 @@ fn main() {
 		body_type: .html
 		body: body
 	}
-	mut client := smtp.new_client(client_cfg) or { panic('Error configuring smtp') }
-	client.send(send_cfg) or { panic('Error resolving email address') }
+	mut client := smtp.new_client(client_cfg) or { panic('Error with configuring smtp: ${err}') }
+	client.send(send_cfg) or { panic('Error resolving email address: ${err}') }
 }
diff --git a/vlib/net/smtp/smtp.v b/vlib/net/smtp/smtp.v
index 5724583c18..399c416d8b 100644
--- a/vlib/net/smtp/smtp.v
+++ b/vlib/net/smtp/smtp.v
@@ -33,7 +33,7 @@ pub struct Client {
 mut:
 	conn     net.TcpConn
 	ssl_conn &ssl.SSLConn = unsafe { nil }
-	reader   io.BufferedReader
+	reader   ?&io.BufferedReader
 pub:
 	server   string
 	port     int = 25
@@ -139,7 +139,7 @@ fn (mut c Client) connect_ssl() ! {
 fn (mut c Client) expect_reply(expected ReplyCode) ! {
 	mut str := ''
 	for {
-		str = c.reader.read_line()!
+		str = c.reader or { return error('the Client.reader field is not set') }.read_line()!
 		if str.len < 4 {
 			return error('Invalid SMTP response: ${str}')
 		}