Derive more traits for events::ModifiersState (#411)

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Unreleased
 
+- Impl `Hash`, `PartialEq`, and `Eq` for `events::ModifiersState`.
+
 # Version 0.11.1 (2018-02-19)
 
 - Fixed windows not receiving mouse events when click-dragging the mouse outside the client area of a window, on Windows platforms.

src/events.rs

@@ -433,7 +433,7 @@ pub enum VirtualKeyCode {
 /// Represents the current state of the keyboard modifiers
 ///
 /// Each field of this struct represents a modifier and is `true` if this modifier is active.
-#[derive(Default, Debug, Clone, Copy)]
+#[derive(Default, Debug, Hash, PartialEq, Eq, Clone, Copy)]
 pub struct ModifiersState {
     /// The "shift" key
     pub shift: bool,