From 26b0e7fd348a514c21c68bcdf960c36bb912886b Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Thu, 21 Apr 2022 23:20:32 +0800
Subject: [PATCH] fmt: remove extra parentheses (#14125)

---
 vlib/v/fmt/fmt.v                            | 6 +++++-
 vlib/v/fmt/tests/extra_par_expr_expected.vv | 6 ++++++
 vlib/v/fmt/tests/extra_par_expr_input.vv    | 6 ++++++
 3 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/fmt/tests/extra_par_expr_expected.vv
 create mode 100644 vlib/v/fmt/tests/extra_par_expr_input.vv

diff --git a/vlib/v/fmt/fmt.v b/vlib/v/fmt/fmt.v
index 5502b2d62c..c19e4a3f55 100644
--- a/vlib/v/fmt/fmt.v
+++ b/vlib/v/fmt/fmt.v
@@ -2315,7 +2315,11 @@ pub fn (mut f Fmt) par_expr(node ast.ParExpr) {
 		f.par_level++
 		f.write('(')
 	}
-	f.expr(node.expr)
+	mut expr := node.expr
+	for mut expr is ast.ParExpr {
+		expr = expr.expr
+	}
+	f.expr(expr)
 	if requires_paren {
 		f.par_level--
 		f.write(')')
diff --git a/vlib/v/fmt/tests/extra_par_expr_expected.vv b/vlib/v/fmt/tests/extra_par_expr_expected.vv
new file mode 100644
index 0000000000..3c953d7586
--- /dev/null
+++ b/vlib/v/fmt/tests/extra_par_expr_expected.vv
@@ -0,0 +1,6 @@
+fn main() {
+	_, _ := (22 > 11), (43 > 22)
+	_ := (10 + 11)
+	_ := (11 * 2)
+	_ := (11 * 2)
+}
diff --git a/vlib/v/fmt/tests/extra_par_expr_input.vv b/vlib/v/fmt/tests/extra_par_expr_input.vv
new file mode 100644
index 0000000000..449071e3d1
--- /dev/null
+++ b/vlib/v/fmt/tests/extra_par_expr_input.vv
@@ -0,0 +1,6 @@
+fn main() {
+	_, _ := (((22 > 11))), (43 > 22)
+	_ := ((10 + 11))
+	_ := ((((((11 * 2))))))
+	_ := ((11 * 2))
+}