From 380d3c075020e57dbac08afc5d3f9247acdf5ab9 Mon Sep 17 00:00:00 2001
From: konsumlamm <konsumlamm@gmail.com>
Date: Thu, 11 Feb 2021 18:07:37 +0100
Subject: [PATCH] Add test for `bitflags! {}`

---
 src/lib.rs                                     |  5 +++++
 test_suite/tests/compile-fail/private_flags.rs |  3 +--
 .../tests/compile-fail/private_flags.stderr    | 18 ++++++++++--------
 3 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 7234e8f0..906ec986 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1455,4 +1455,9 @@ mod tests {
         assert_eq!(format!("{:?}", Flags::empty()), "NONE");
         assert_eq!(format!("{:?}", Flags::SOME), "SOME");
     }
+
+    #[test]
+    fn test_empty_bitflags() {
+        bitflags! {}
+    }
 }
diff --git a/test_suite/tests/compile-fail/private_flags.rs b/test_suite/tests/compile-fail/private_flags.rs
index 35089bc0..0532246a 100644
--- a/test_suite/tests/compile-fail/private_flags.rs
+++ b/test_suite/tests/compile-fail/private_flags.rs
@@ -6,8 +6,7 @@ mod example {
         pub struct Flags1: u32 {
             const FLAG_A = 0b00000001;
         }
-    }
-    bitflags! {
+
         struct Flags2: u32 {
             const FLAG_B = 0b00000010;
         }
diff --git a/test_suite/tests/compile-fail/private_flags.stderr b/test_suite/tests/compile-fail/private_flags.stderr
index c72b6ff6..2bdf1acb 100644
--- a/test_suite/tests/compile-fail/private_flags.stderr
+++ b/test_suite/tests/compile-fail/private_flags.stderr
@@ -1,16 +1,18 @@
 error[E0603]: struct `Flags2` is private
-  --> $DIR/private_flags.rs:19:26
+  --> $DIR/private_flags.rs:18:26
    |
-19 |     let flag2 = example::Flags2::FLAG_B;
+18 |     let flag2 = example::Flags2::FLAG_B;
    |                          ^^^^^^ private struct
    |
 note: the struct `Flags2` is defined here
-  --> $DIR/private_flags.rs:10:5
+  --> $DIR/private_flags.rs:5:5
    |
-10 | /     bitflags! {
-11 | |         struct Flags2: u32 {
-12 | |             const FLAG_B = 0b00000010;
-13 | |         }
-14 | |     }
+5  | /     bitflags! {
+6  | |         pub struct Flags1: u32 {
+7  | |             const FLAG_A = 0b00000001;
+8  | |         }
+...  |
+12 | |         }
+13 | |     }
    | |_____^
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)