From 50fb5de92609180c8a8a66260127100cdedd0a48 Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Sun, 25 Sep 2022 16:21:14 +0800
Subject: [PATCH] checker: fix dumping match expr (#15869)

---
 vlib/v/checker/checker.v               | 1 +
 vlib/v/tests/inout/dump_match_expr.out | 1 +
 vlib/v/tests/inout/dump_match_expr.vv  | 8 ++++++++
 3 files changed, 10 insertions(+)
 create mode 100644 vlib/v/tests/inout/dump_match_expr.out
 create mode 100644 vlib/v/tests/inout/dump_match_expr.vv

diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index 2eb3d85fe0..36cdf0f89c 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -2179,6 +2179,7 @@ pub fn (mut c Checker) expr(node_ ast.Expr) ast.Type {
 			return c.concat_expr(mut node)
 		}
 		ast.DumpExpr {
+			c.expected_type = ast.string_type
 			node.expr_type = c.expr(node.expr)
 			c.check_expr_opt_call(node.expr, node.expr_type)
 			etidx := node.expr_type.idx()
diff --git a/vlib/v/tests/inout/dump_match_expr.out b/vlib/v/tests/inout/dump_match_expr.out
new file mode 100644
index 0000000000..61d6143983
--- /dev/null
+++ b/vlib/v/tests/inout/dump_match_expr.out
@@ -0,0 +1 @@
+[vlib/v/tests/inout/dump_match_expr.vv:3] ast.MatchExpr: 1
diff --git a/vlib/v/tests/inout/dump_match_expr.vv b/vlib/v/tests/inout/dump_match_expr.vv
new file mode 100644
index 0000000000..359200ef8a
--- /dev/null
+++ b/vlib/v/tests/inout/dump_match_expr.vv
@@ -0,0 +1,8 @@
+fn main() {
+	i := 1
+	dump(match i {
+		0 { '0' }
+		1 { '1' }
+		else { '2' }
+	})
+}