ESM: Ported Bit shift, MAC address and Morse Code operations.

src/core/operations/BitShiftLeft.mjs

@@ -0,0 +1,75 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Bit shift left operation
+ */
+class BitShiftLeft extends Operation {
+
+    /**
+     * BitShiftLeft constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bit shift left";
+        this.module = "Default";
+        this.description = "Shifts the bits in each byte towards the left by the specified amount.";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                "name": "Amount",
+                "type": "number",
+                "value": 1
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const amount = args[0];
+
+        return input.map(b => {
+            return (b << amount) & 0xff;
+        });
+    }
+
+    /**
+     * Highlight Bit shift left
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Bit shift 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 BitShiftLeft;