implement FlagOperations for all integers using macro

src/lib.rs

@@ -1,4 +1,3 @@
-
 //region Clippy config
 #![warn(clippy::pedantic)]
 //disable silly rules
@@ -12,20 +11,26 @@ clippy::cast_lossless, clippy::cast_possible_wrap, //lossy casts are required to
 pub mod logging;
 pub mod key;
 
-//TODO generify this?
+macro_rules! impl_flag_operations {
-impl FlagOperations for u32 {
+    ($($ty:ty),*) => {
-    fn has_one_bit_set(&self) -> bool {
+        $(
-        *self > 0 && *self & (*self - 1) == 0
+            impl FlagOperations for $ty {
-    }
+                fn has_one_bit_set(&self) -> bool {
+                    *self > 0 && *self & (*self - 1) == 0
+                }
 
-    fn get_flag(&self, flag: Self) -> bool {
+                fn get_flag(&self, flag: Self) -> bool {
-        if flag.has_one_bit_set() {
+                    if flag.has_one_bit_set() {
-            self & flag != 0
+                        self & flag != 0
-        } else {
+                    } else {
-            panic!("flag must have 1 bit set")
+                        panic!("flag must have 1 bit set")
-        }
+                    }
-    }
+                }
+            }
+        )*
+    };
 }
+impl_flag_operations!(usize, u8, u16, u32, u64, u128, isize, i8, i16, i32, i64, i128);
 
 trait FlagOperations {
     ///true if exactly 1 bit of the given number is set
@@ -42,19 +47,19 @@ mod tests {
 
     #[test]
     fn get_flag() {
-        assert!(5u32.get_flag(1 << 2));
+        assert!(5.get_flag(1 << 2));
-        assert!(!3u32.get_flag(1 << 2));
+        assert!(!3.get_flag(1 << 2));
     }
 
     #[test]
     #[should_panic]
     fn get_flag_panic() {
-        0u32.get_flag(3);
+        0.get_flag(3);
     }
 
     #[test]
     fn has_one_bit_set() {
-        assert!(1u32.has_one_bit_set());
+        assert!(1.has_one_bit_set());
-        assert!(!3u32.has_one_bit_set());
+        assert!(!3.has_one_bit_set());
     }
 }