From 8c67a430416c74470ff33fa408264094ed4ec43e Mon Sep 17 00:00:00 2001
From: Ashley Mannix <kodraus@hey.com>
Date: Wed, 4 May 2022 10:47:27 +1000
Subject: [PATCH] fix emission of some expected warnings

---
 src/lib.rs                           | 15 ++++++++-------
 tests/compile-pass/deprecated.rs     | 14 ++++++++++++++
 tests/compile-pass/non_snake_case.rs | 13 +++++++++++++
 3 files changed, 35 insertions(+), 7 deletions(-)
 create mode 100644 tests/compile-pass/deprecated.rs
 create mode 100644 tests/compile-pass/non_snake_case.rs

diff --git a/src/lib.rs b/src/lib.rs
index f2546a5b..979ff918 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -456,7 +456,14 @@ macro_rules! __impl_bitflags {
             }
         }
 
-        #[allow(dead_code)]
+        #[allow(
+            dead_code,
+            deprecated,
+            unused_doc_comments,
+            unused_attributes,
+            unused_mut,
+            non_upper_case_globals
+        )]
         impl $BitFlags {
             $(
                 $(#[$attr $($args)*])*
@@ -502,11 +509,9 @@ macro_rules! __impl_bitflags {
                     return Self { bits }
                 }
 
-                #[allow(unused_mut)]
                 let mut truncated = <$T as $crate::__private::Bits>::EMPTY;
 
                 $(
-                    #[allow(unused_doc_comments, unused_attributes)]
                     $(#[$attr $($args)*])*
                     if bits & Self::$Flag.bits == Self::$Flag.bits {
                         truncated |= Self::$Flag.bits
@@ -678,11 +683,9 @@ macro_rules! __impl_bitflags {
                 use $crate::__private::core::iter::Iterator as _;
 
                 const NUM_FLAGS: usize = {
-                    #[allow(unused_mut)]
                     let mut num_flags = 0;
 
                     $(
-                        #[allow(unused_doc_comments, unused_attributes)]
                         $(#[$attr $($args)*])*
                         {
                             num_flags += 1;
@@ -694,13 +697,11 @@ macro_rules! __impl_bitflags {
 
                 const OPTIONS: [$BitFlags; NUM_FLAGS] = [
                     $(
-                        #[allow(unused_doc_comments, unused_attributes)]
                         $(#[$attr $($args)*])*
                         $BitFlags::$Flag,
                     )*
                 ];
 
-                #[allow(unused_doc_comments, unused_attributes)]
                 const OPTIONS_NAMES: [&'static str; NUM_FLAGS] = [
                     $(
                         $(#[$attr $($args)*])*
diff --git a/tests/compile-pass/deprecated.rs b/tests/compile-pass/deprecated.rs
new file mode 100644
index 00000000..167ce44c
--- /dev/null
+++ b/tests/compile-pass/deprecated.rs
@@ -0,0 +1,14 @@
+#![deny(warnings)]
+
+#[macro_use]
+extern crate bitflags;
+
+bitflags! {
+    pub struct Flags: u32 {
+        #[deprecated = "Use something else"]
+        const A = 0b00000001;
+        const B = 0b00000010;
+    }
+}
+
+fn main() {}
diff --git a/tests/compile-pass/non_snake_case.rs b/tests/compile-pass/non_snake_case.rs
new file mode 100644
index 00000000..5a3b8103
--- /dev/null
+++ b/tests/compile-pass/non_snake_case.rs
@@ -0,0 +1,13 @@
+#![deny(warnings)]
+
+#[macro_use]
+extern crate bitflags;
+
+bitflags! {
+    pub struct Flags: u32 {
+        const CamelCase = 0b00000001;
+        const B = 0b00000010;
+    }
+}
+
+fn main() {}