From b1fefc5e0c5f2a4185da77bdbab62249bab89043 Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Mon, 19 May 2025 19:02:32 +0800
Subject: [PATCH] repl: fix typeof(a) with warning (fix #24499) (#24515)

---
 cmd/tools/vrepl.v                             |  8 ++--
 .../slow_tests/repl/print_output_warning.repl | 44 +++++++++++++++++++
 2 files changed, 49 insertions(+), 3 deletions(-)
 create mode 100644 vlib/v/slow_tests/repl/print_output_warning.repl

diff --git a/cmd/tools/vrepl.v b/cmd/tools/vrepl.v
index 94b1366b1..4c5eb3623 100644
--- a/cmd/tools/vrepl.v
+++ b/cmd/tools/vrepl.v
@@ -533,7 +533,7 @@ fn run_repl(workdir string, vrepl_prefix string) int {
 			if s.output.len > r.last_output.len {
 				cur_line_output := s.output[r.last_output.len..]
 				print_output(cur_line_output)
-				if s.exit_code == 0 {
+				if s.exit_code == 0 && !cur_line_output.contains('warning:') {
 					r.last_output = s.output.clone()
 					r.lines << r.line
 				}
@@ -583,8 +583,10 @@ fn run_repl(workdir string, vrepl_prefix string) int {
 					if s.output.len > r.last_output.len {
 						cur_line_output := s.output[r.last_output.len..]
 						print_output(cur_line_output)
-						r.last_output = s.output.clone()
-						r.lines << print_line
+						if !cur_line_output.contains('warning:') {
+							r.last_output = s.output.clone()
+							r.lines << print_line
+						}
 					}
 					continue
 				} else {
diff --git a/vlib/v/slow_tests/repl/print_output_warning.repl b/vlib/v/slow_tests/repl/print_output_warning.repl
new file mode 100644
index 000000000..a5c79e098
--- /dev/null
+++ b/vlib/v/slow_tests/repl/print_output_warning.repl
@@ -0,0 +1,44 @@
+a := error('hi')
+typeof(a)
+typeof(a)
+typeof(a)
+print(typeof(a))
+print(typeof(a))
+print(typeof(a))
+===output===
+warning: use e.g. `typeof(expr).name` or `sum_type_instance.type_name()` instead
+    6 | 
+    7 | a := error('hi')
+    8 | println(typeof(a))
+      |         ~~~~~~
+IError
+warning: use e.g. `typeof(expr).name` or `sum_type_instance.type_name()` instead
+    6 | 
+    7 | a := error('hi')
+    8 | println(typeof(a))
+      |         ~~~~~~
+IError
+warning: use e.g. `typeof(expr).name` or `sum_type_instance.type_name()` instead
+    6 | 
+    7 | a := error('hi')
+    8 | println(typeof(a))
+      |         ~~~~~~
+IError
+warning: use e.g. `typeof(expr).name` or `sum_type_instance.type_name()` instead
+    6 | 
+    7 | a := error('hi')
+    8 | print(typeof(a))
+      |       ~~~~~~
+IError
+warning: use e.g. `typeof(expr).name` or `sum_type_instance.type_name()` instead
+    6 | 
+    7 | a := error('hi')
+    8 | print(typeof(a))
+      |       ~~~~~~
+IError
+warning: use e.g. `typeof(expr).name` or `sum_type_instance.type_name()` instead
+    6 | 
+    7 | a := error('hi')
+    8 | print(typeof(a))
+      |       ~~~~~~
+IError
\ No newline at end of file
-- 
2.39.5