deadcode elimination

Author: mightyaleksey

package.json

@@ -10,13 +10,11 @@
     "debug": "^2.2.0",
     "generic-names": "^1.0.0-beta",
     "icss-replace-symbols": "^1.0.2",
-    "lodash.assign": "^3.2.0",
     "lodash.foreach": "^3.0.3",
     "lodash.identity": "^3.0.0",
     "lodash.isarray": "^3.0.4",
     "lodash.isfunction": "^3.0.6",
-    "lodash.isstring": "^3.0.1",
-    "lodash.pick": "^3.1.0"
+    "lodash.isstring": "^3.0.1"
   },
   "devDependencies": {
     "babel": "^5.8.20",

src/utility.js

@@ -1,57 +1,13 @@
 import isArray from 'lodash.isarray';
 import isFunction from 'lodash.isfunction';
 import isString from 'lodash.isstring';
-import { format } from 'util';
 
 const check = {
   'array': isArray,
   'function': isFunction,
   'string': isString,
 };
 
-/**
- * @param  {string} prop
- * @param  {string[]} aliases
- * @param  {string} type
- * @param  {object} source
- * @return {*}
- */
-export function get(prop, aliases, type, source) {
-  if (source[prop]) {
-    if (isArray(type)) {
-      if (type.some(tp => is(tp, source[prop]))) {
-        return source[prop];
-      }
-
-      throw new Error(format('should specify %s for %s', type.join('|'), prop));
-    }
-
-    if (!is(type, source[prop])) {
-      throw new Error(format('should specify %s for %s', type, prop));
-    }
-
-    return source[prop];
-  }
-
-  if (!isArray(aliases)) {
-    return null;
-  }
-
-  let deprecatedProp;
-  const match = aliases.some(alias => Boolean(source[(deprecatedProp = alias)]));
-
-  if (match) {
-    if (!is(type, source[deprecatedProp])) {
-      throw new Error(format('should specify %s for %s', type, deprecatedProp));
-    }
-
-    // deprecated message
-    return source[deprecatedProp];
-  }
-
-  return null;
-}
-
 /**
  * @param  {string}  type
  * @param  {*}       value

test/utility.js

@@ -1,19 +1,7 @@
 import { ok, equal, throws } from 'assert';
-import { get, is, removeQuotes } from '../src/utility';
+import { is, removeQuotes } from '../src/utility';
 
 describe('utility', () => {
-  describe('get()', () => {
-    it('should return value for an existing property', () => equal(get('a', null, 'string', {a: 'val'}), 'val'));
-
-    it('should return value for an existing alias', () => equal(get('a', ['b'], 'string', {b: 'val'}), 'val'));
-
-    it('should return null for a non-existing property', () => equal(get('a', null, 'array', {}), null));
-
-    it('should throw an error for the specified key with wrong type of value', () => {
-      throws(() => get('a', null, 'string', {a: 5}));
-    });
-  });
-
   describe('is()', () => {
     it('should return true for an array', () => ok(is('array', [])));