Memory hardening for AlsaDriver.

react/src/Rectangle.tsx

@@ -0,0 +1,32 @@
+
+
+export default class Rectangle {
+    top: number;
+    left: number;
+    width: number;
+    height: number;
+
+    constructor(top?: number, left?: number, width?: number, height?: number) {
+        this.top = top ? top: 0;
+        this.left = left ? left: 0;
+        this.width = width ? width: 0;
+        this.height = height ? height: 0;
+    }
+
+    get right(): number {
+        return this.left + this.width;
+    }
+
+    get bottom(): number {
+        return this.top + this.height;
+    }
+
+    set right(value: number) {
+        this.width = value - this.left;
+    }
+
+    set bottom(value: number) {
+        this.height = value - this.top;
+    }
+};
+