Rotate module converted to ESM

4 Ops:
- ROT-13
- ROT-47
- Rotate left
- Rotate right
+ module containing common functions

src/core/operations/RotateLeft.mjs

@@ -0,0 +1,80 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import { rot, rotl, rotlCarry, ROTATE_AMOUNT, ROTATE_CARRY } from "../lib/Rotate";
+
+/**
+ * Rotate left operation.
+ */
+class RotateLeft extends Operation {
+
+    /**
+     * RotateLeft constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Rotate left";
+        this.module = "Default";
+        this.description = "Rotates each byte to the left by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values.";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                name: "Amount",
+                type: "number",
+                value: ROTATE_AMOUNT
+            },
+            {
+                name: "Carry through",
+                type: "boolean",
+                value: ROTATE_CARRY
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        if (args[1]) {
+            return rotlCarry(input, args[0]);
+        } else {
+            return rot(input, args[0], rotl);
+        }
+    }
+
+    /**
+     * Highlight rotate left
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight rotate left in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+}
+
+export default RotateLeft;