refactor: split cargo workspace

crates/utils/src/bitflags.rs

@@ -0,0 +1,32 @@
+pub trait BitflagsExt {
+    fn contains(self, other: Self) -> bool;
+    fn not_contains(self, other: Self) -> bool;
+    fn intersects(self, other: Self) -> bool;
+}
+
+macro_rules! num {
+    ($ty:ident) => {
+        impl BitflagsExt for $ty {
+            fn contains(self, other: Self) -> bool {
+                self & other == other
+            }
+
+            fn not_contains(self, other: Self) -> bool {
+                self & other != other
+            }
+
+            fn intersects(self, other: Self) -> bool {
+                self & other != 0
+            }
+        }
+    };
+}
+
+num!(u8);
+num!(u16);
+num!(u32);
+num!(u64);
+num!(i8);
+num!(i16);
+num!(i32);
+num!(i64);