Add intersection()/intersect_with()

Manishearth · Manishearth · commit f15678118a57 · 2020-01-02T08:31:14.000+05:30
diff --git a/src/lib.rs b/src/lib.rs
@@ -45,10 +45,20 @@ impl ScriptExtension {
     ///
     /// "Common" (`Zyyy`) and "Inherited" (`Zinh`) are considered as intersecting
     /// everything.
-    pub fn intersect(self, other: Self) -> Self {
+    pub fn intersection(&mut self, other: Self) -> Self {
         self.inner_intersect(other)
     }
 
+    /// Intersect this ScriptExtension with another ScriptExtension. Produces Unknown if things
+    /// do not intersect. This is equivalent to [`ScriptExtension::intersection`] but it stores the result
+    /// in `self`
+    ///
+    /// "Common" (`Zyyy`) and "Inherited" (`Zinh`) are considered as intersecting
+    /// everything.
+    pub fn intersect_with(&mut self, other: Self) {
+        *self = self.inner_intersect(other)
+    }
+
     /// Checks if the script extension is empty (unknown)
     pub fn is_empty(self) -> bool {
         self == ScriptExtension::Single(Script::Unknown)
