From 88284c124a0d930541f02ae9727118c0724f93f9 Mon Sep 17 00:00:00 2001
From: mlugg <mlugg@mlugg.co.uk>
Date: Mon, 26 Jun 2023 20:41:42 +0100
Subject: AstGen: fix result locations for elements of typed array init

Resolves: #16226
---
 test/behavior/array.zig | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'test/behavior/array.zig')

diff --git a/test/behavior/array.zig b/test/behavior/array.zig
index bc8176aa9c..82313cddc7 100644
--- a/test/behavior/array.zig
+++ b/test/behavior/array.zig
@@ -719,3 +719,32 @@ test "pointer to array has ptr field" {
     try std.testing.expect(arr.ptr[3] == 40);
     try std.testing.expect(arr.ptr[4] == 50);
 }
+
+test "discarded array init preserves result location" {
+    const S = struct {
+        fn f(p: *u32) u16 {
+            p.* += 1;
+            return 0;
+        }
+    };
+
+    var x: u32 = 0;
+    _ = [2]u8{
+        @intCast(S.f(&x)),
+        @intCast(S.f(&x)),
+    };
+
+    // Ensure function was run
+    try expect(x == 2);
+}
+
+test "array init with no result location has result type" {
+    const x = .{ .foo = [2]u16{
+        @intCast(10),
+        @intCast(20),
+    } };
+
+    try expect(x.foo.len == 2);
+    try expect(x.foo[0] == 10);
+    try expect(x.foo[1] == 20);
+}
-- 
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