Sema: fix comparison between error set and comptime-known error union

Resolves: #20613
2025-02-05 20:13:56 +00:00
parent 9ba9f457be
commit cac814cf58
2 changed files with 19 additions and 1 deletions
--- a/test/behavior/error.zig
+++ b/test/behavior/error.zig
@@ -1100,3 +1100,14 @@ test "return error union with i65" {
 fn add(x: i65, y: i65) anyerror!i65 {
    return x + y;
 }
+
+test "compare error union to error set" {
+    const S = struct {
+        fn doTheTest(val: error{Foo}!i32) !void {
+            if (error.Foo == val) return error.Unexpected;
+            if (val == error.Foo) return error.Unexpected;
+        }
+    };
+    try S.doTheTest(0);
+    try comptime S.doTheTest(0);
+}