From bb2223c8b01771720bfb8241255cba708e2c7ad1 Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Wed, 6 Jul 2022 15:43:36 +0800
Subject: [PATCH] checker: fix shared_element_lock.vv test (#14960)

---
 vlib/pg/pg.v                                 | 15 +++++++++------
 vlib/v/checker/tests/shared_element_lock.out |  2 +-
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/vlib/pg/pg.v b/vlib/pg/pg.v
index a5d77b0a0..5f77254b5 100644
--- a/vlib/pg/pg.v
+++ b/vlib/pg/pg.v
@@ -188,13 +188,16 @@ pub fn (db DB) exec_one(query string) ?Row {
 
 // exec_param_many executes a query with the provided parameters
 pub fn (db DB) exec_param_many(query string, params []string) ?[]Row {
-	mut param_vals := []&char{len: params.len}
-	for i in 0 .. params.len {
-		param_vals[i] = params[i].str
-	}
+	unsafe {
+		mut param_vals := []&char{len: params.len}
+		for i in 0 .. params.len {
+			param_vals[i] = params[i].str
+		}
 
-	res := C.PQexecParams(db.conn, query.str, params.len, 0, param_vals.data, 0, 0, 0)
-	return db.handle_error_or_result(res, 'exec_param_many')
+		res := C.PQexecParams(db.conn, query.str, params.len, 0, param_vals.data, 0, 0,
+			0)
+		return db.handle_error_or_result(res, 'exec_param_many')
+	}
 }
 
 pub fn (db DB) exec_param2(query string, param string, param2 string) ?[]Row {
diff --git a/vlib/v/checker/tests/shared_element_lock.out b/vlib/v/checker/tests/shared_element_lock.out
index 63b6a905b..3867d2af3 100644
--- a/vlib/v/checker/tests/shared_element_lock.out
+++ b/vlib/v/checker/tests/shared_element_lock.out
@@ -1,4 +1,4 @@
-vlib/v/checker/tests/shared_element_lock.vv:43:11: warning: arrays of references need to be initialized right away (unless used inside `unsafe`)
+vlib/v/checker/tests/shared_element_lock.vv:43:11: warning: arrays of references need to be initialized right away, therefore `len:` cannot be used (unless inside `unsafe`)
    41 |     shared g := Pro{}
    42 |     g.pers.age = 42
    43 |     mut h := []shared Pro{len: 3}
-- 
2.30.2