if statements support comptime known test error, runtime payload

2018-02-08 22:18:13 -05:00
parent 54c06bf715
commit 0efe441dfd
3 changed files with 16 additions and 29 deletions
--- a/test/cases/error.zig
+++ b/test/cases/error.zig
@@ -123,3 +123,14 @@ fn testExplicitErrorSetCast(set1: Set1) void {
    var y = Set1(x);
    assert(y == error.A);
 }
+
+test "comptime test error for empty error set" {
+    testComptimeTestErrorEmptySet(1234);
+    comptime testComptimeTestErrorEmptySet(1234);
+}
+
+const EmptyErrorSet = error {};
+
+fn testComptimeTestErrorEmptySet(x: EmptyErrorSet!i32) void {
+    if (x) |v| assert(v == 1234) else |err| @compileError("bad");
+}