[CI Skip] 1.4.1

* ss58Format option  for Keyring

* Expose setSS58Format everywhere

* Remove setAddressPrefix

* 1.4.0

CHANGELOG.md

@@ -1,3 +1,15 @@
+# 1.4.1
+
+- **Breaking change** To set the `ss58Format`, you should now use `setSS58Format` as opposed to the old `setAddressPrefix`
+- Renamed `keyring.setAddressPrefix` to `keyring.setSS58Format`
+- Deprecated `addressPrefix` on the keyring options, added the `ss58Format` as a replacement (aligning with chain properties - the old version is still accepted)
+- Added `stringToHex` and `hexToString` conversion utilities to `@polkadot/util`
+- Swap to [Babel 7.6.0](https://babeljs.io/) for all compilation, for latest improvements in code generation
+
+# 1.3.1
+
+- Remove the `ExtError` class, always prefer the standard JS `Error` object for errors. This would bre a breaking change for any applications using `ExtError`
+
 # 1.2.1
 
 - Keyring `addFromAddress` can now be used to store external accounts, for example those provided by external signers

lerna.json

@@ -9,5 +9,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "1.2.1"
+  "version": "1.4.1"
 }

package.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.2.1",
+  "version": "1.4.1",
   "private": true,
   "engines": {
     "yarn": "^1.10.1"
@@ -9,7 +9,7 @@
   ],
   "resolutions": {
     "babel-core": "^7.0.0-bridge.0",
-    "typescript": "^3.6.2"
+    "typescript": "^3.6.3"
   },
   "scripts": {
     "build": "polkadot-dev-build-ts && polkadot-dev-build-docs",
@@ -21,9 +21,9 @@
     "test:one": "jest"
   },
   "devDependencies": {
-    "@babel/core": "^7.5.5",
-    "@polkadot/dev": "^0.31.0-beta.7",
-    "@polkadot/ts": "^0.1.71",
+    "@babel/core": "^7.6.0",
+    "@polkadot/dev": "^0.31.0-beta.8",
+    "@polkadot/ts": "^0.1.72",
     "gh-pages": "^2.1.1"
   }
 }

packages/chainspec/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/chainspec",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "Contains chain specifications for known chains",
   "main": "index.js",
   "keywords": [
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/chainspec#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/util": "^1.2.1"
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/util": "^1.4.1"
   }
 }

packages/db/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/db",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "Implementation of a basic sync in-memory and on-disk databases with overlays",
   "main": "index.js",
   "keywords": [
@@ -25,9 +25,9 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/db#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/trie-hash": "^1.2.1",
-    "@polkadot/util": "^1.2.1",
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/trie-hash": "^1.4.1",
+    "@polkadot/util": "^1.4.1",
     "lru_map": "^0.3.3"
   }
 }

packages/keyring/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/keyring",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "Keyring management",
   "main": "index.js",
   "publishConfig": {
@@ -27,8 +27,8 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/keyring#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/util": "^1.2.1",
-    "@polkadot/util-crypto": "^1.2.1"
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/util": "^1.4.1",
+    "@polkadot/util-crypto": "^1.4.1"
   }
 }

packages/keyring/src/index.spec.ts

@@ -3,7 +3,7 @@
 // of the Apache-2.0 license. See the LICENSE file for details.
 
 import { hexToU8a, stringToU8a } from '@polkadot/util';
-import { cryptoWaitReady, setAddressPrefix } from '@polkadot/util-crypto';
+import { cryptoWaitReady, setSS58Format } from '@polkadot/util-crypto';
 
 import Keyring from '.';
 
@@ -25,6 +25,10 @@ describe('keypair', (): void => {
       keypair.addFromSeed(seedOne, {});
     });
 
+    afterEach((): void => {
+      setSS58Format(42);
+    });
+
     it('adds the pair', (): void => {
       expect(
         keypair.addFromSeed(seedTwo, {}).publicKey
@@ -40,7 +44,7 @@ describe('keypair', (): void => {
     });
 
     it('adds from a mnemonic', (): void => {
-      setAddressPrefix(68);
+      setSS58Format(68);
 
       expect(
         keypair.addFromMnemonic('moral movie very draw assault whisper awful rebuild speed purity repeat card', {}).address
@@ -93,6 +97,10 @@ describe('keypair', (): void => {
       keypair.addFromSeed(seedOne, {});
     });
 
+    afterEach((): void => {
+      setSS58Format(42);
+    });
+
     it('creates with dev phrase when only path specified', (): void => {
       expect(
         keypair.createFromUri('//Alice').address
@@ -106,7 +114,7 @@ describe('keypair', (): void => {
     });
 
     it('adds from a mnemonic', (): void => {
-      setAddressPrefix(68);
+      setSS58Format(68);
 
       expect(
         keypair.addFromMnemonic('moral movie very draw assault whisper awful rebuild speed purity repeat card', {}).address

packages/keyring/src/index.ts

@@ -3,7 +3,7 @@
 // of the Apache-2.0 license. See the LICENSE file for details.
 
 import { assertSingletonPackage } from '@polkadot/util';
-import { decodeAddress, encodeAddress, setAddressPrefix } from '@polkadot/util-crypto';
+import { decodeAddress, encodeAddress, setSS58Format } from '@polkadot/util-crypto';
 
 import Keyring from './keyring';
 
@@ -15,5 +15,5 @@ export {
   Keyring,
   decodeAddress,
   encodeAddress,
-  setAddressPrefix
+  setSS58Format
 };

packages/keyring/src/keyring.ts

@@ -6,7 +6,7 @@ import { KeypairType } from '@polkadot/util-crypto/types';
 import { KeyringInstance, KeyringPair, KeyringPair$Json, KeyringPair$Meta, KeyringOptions } from './types';
 
 import { assert, hexToU8a, isNumber, isHex, stringToU8a } from '@polkadot/util';
-import { decodeAddress, encodeAddress, keyExtractSuri, keyFromPath, naclKeypairFromSeed as naclFromSeed, schnorrkelKeypairFromSeed as schnorrkelFromSeed, mnemonicToMiniSecret, setAddressPrefix } from '@polkadot/util-crypto';
+import { decodeAddress, encodeAddress, keyExtractSuri, keyFromPath, naclKeypairFromSeed as naclFromSeed, schnorrkelKeypairFromSeed as schnorrkelFromSeed, mnemonicToMiniSecret, setSS58Format } from '@polkadot/util-crypto';
 
 import { DEV_PHRASE } from './defaults';
 import createPair from './pair';
@@ -37,17 +37,20 @@ export default class Keyring implements KeyringInstance {
 
   public encodeAddress = encodeAddress;
 
-  public setAddressPrefix = setAddressPrefix;
+  public setSS58Format = setSS58Format;
 
   public constructor (options: KeyringOptions = {}) {
     options.type = options.type || 'ed25519';
+    options.ss58Format = options.ss58Format || options.addressPrefix;
 
     assert(options && ['ed25519', 'sr25519'].includes(options.type || 'undefined'), `Expected a keyring type of either 'ed25519' or 'sr25519', found '${options.type}`);
 
     this._pairs = new Pairs();
     this._type = options.type;
 
-    setAddressPrefix(isNumber(options.addressPrefix) ? options.addressPrefix : 42);
+    if (isNumber(options.ss58Format)) {
+      setSS58Format(options.ss58Format);
+    }
   }
 
   /**

packages/keyring/src/pair/index.spec.ts

@@ -2,7 +2,7 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import { setAddressPrefix } from '@polkadot/util-crypto';
+import { setSS58Format } from '@polkadot/util-crypto';
 
 import testingPairs from '../testingPairs';
 import createPair from '.';
@@ -61,7 +61,7 @@ describe('pair', (): void => {
       '5GoKvZWG5ZPYL1WUovuHW3zJBWBP5eT8CbqjdRY4Q6iMaQua'
     );
 
-    setAddressPrefix(68);
+    setSS58Format(68);
 
     expect(keyring.alice.address).toEqual(
       '7sGUeMak588SPY2YMmmuKUuLz7u2WQpf74F9dCFtSLB2td9d'

packages/keyring/src/types.ts

@@ -7,7 +7,9 @@ import { Prefix } from '@polkadot/util-crypto/address/types';
 import { KeypairType } from '@polkadot/util-crypto/types';
 
 export interface KeyringOptions {
+  // @deprecated
   addressPrefix?: Prefix;
+  ss58Format?: Prefix;
   type?: KeypairType;
 }
 
@@ -61,7 +63,7 @@ export interface KeyringInstance {
 
   decodeAddress (encoded: string | Uint8Array, ignoreChecksum?: boolean): Uint8Array;
   encodeAddress (key: Uint8Array | string): string;
-  setAddressPrefix (prefix: Prefix): void;
+  setSS58Format (prefix: Prefix): void;
 
   addPair (pair: KeyringPair): KeyringPair;
   addFromAddress (address: string | Uint8Array, meta?: KeyringPair$Meta, encoded?: Uint8Array | null, type?: KeypairType, ignoreChecksum?: boolean): KeyringPair;

packages/trie-codec/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/trie-codec",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "This is an implementation of the codec for Substrate Trie",
   "main": "index.js",
   "keywords": [
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/trie-codec#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/util": "^1.2.1"
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/util": "^1.4.1"
   }
 }

packages/trie-db/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/trie-db",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "This is an implementation of the modified merkle patricia tree as specified in Ethereum's yellow paper, adapted for Polkadot",
   "main": "index.js",
   "keywords": [
@@ -25,16 +25,16 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/trie-db#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/db": "^1.2.1",
-    "@polkadot/trie-codec": "^1.2.1",
-    "@polkadot/trie-hash": "^1.2.1",
-    "@polkadot/util": "^1.2.1",
-    "@polkadot/util-crypto": "^1.2.1"
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/db": "^1.4.1",
+    "@polkadot/trie-codec": "^1.4.1",
+    "@polkadot/trie-hash": "^1.4.1",
+    "@polkadot/util": "^1.4.1",
+    "@polkadot/util-crypto": "^1.4.1"
   },
   "devDependencies": {
-    "@polkadot/chainspec": "^1.2.1",
-    "@polkadot/util-rlp": "^1.2.1",
+    "@polkadot/chainspec": "^1.4.1",
+    "@polkadot/util-rlp": "^1.4.1",
     "ethereumjs-testing": "1.0.4"
   }
 }

packages/trie-hash/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/trie-hash",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "Generates trie roots from key-value pairs",
   "main": "index.js",
   "keywords": [
@@ -25,10 +25,10 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/trie-hash#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/util": "^1.2.1"
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/util": "^1.4.1"
   },
   "devDependencies": {
-    "@polkadot/chainspec": "^1.2.1"
+    "@polkadot/chainspec": "^1.4.1"
   }
 }

packages/util-crypto/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/util-crypto",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "A collection of useful crypto utilities for @polkadot",
   "main": "index.js",
   "keywords": [
@@ -25,8 +25,8 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/util-crypto#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/util": "^1.2.1",
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/util": "^1.4.1",
     "@polkadot/wasm-crypto": "^0.14.1",
     "@types/bip39": "^2.4.2",
     "@types/bs58": "^4.0.0",

packages/util-crypto/src/address/encode.spec.ts

@@ -14,6 +14,12 @@ describe('encode', (): void => {
     ).toEqual('5GoKvZWG5ZPYL1WUovuHW3zJBWBP5eT8CbqjdRY4Q6iMaQua');
   });
 
+  it('can re-encode an address', (): void => {
+    expect(
+      encode('5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY', 68)
+    ).toEqual('7sL6eNJj5ZGV5cn3hhV2deRUsivXfBfMH76wCALCqWj1EKzv');
+  });
+
   it('fails when non-valid publicKey provided', (): void => {
     expect(
       (): string => encode(

packages/util-crypto/src/address/encode.ts

@@ -7,13 +7,15 @@ import { Prefix } from './types';
 // Original implementation: https://github.com/paritytech/polka-ui/blob/4858c094684769080f5811f32b081dd7780b0880/src/polkadot.js#L34
 
 import bs58 from 'bs58';
-import { assert, u8aConcat, u8aToBuffer, u8aToU8a } from '@polkadot/util';
+import { assert, u8aConcat, u8aToBuffer } from '@polkadot/util';
 
+import decode from './decode';
 import defaults from './defaults';
 import sshash from './sshash';
 
 export default function encode (_key: Uint8Array | string, prefix: Prefix = defaults.prefix): string {
-  const key = u8aToU8a(_key);
+  // decode it, this means we can re-encode an address
+  const key = decode(_key);
 
   assert(defaults.allowedDecodedLengths.includes(key.length), `Expected a valid key to convert, with length ${defaults.allowedDecodedLengths}`);
 

packages/util-crypto/src/address/index.ts

@@ -5,11 +5,11 @@
 import checkAddress from './check';
 import decodeAddress from './decode';
 import encodeAddress from './encode';
-import setAddressPrefix from './setPrefix';
+import setSS58Format from './setSS58Format';
 
 export {
   checkAddress,
   decodeAddress,
   encodeAddress,
-  setAddressPrefix
+  setSS58Format
 };

packages/util-crypto/src/address/setSS58Format.spec.ts

@@ -3,11 +3,11 @@
 // of the Apache-2.0 license. See the LICENSE file for details.
 
 import encode from './encode';
-import setPrefix from './setPrefix';
+import setSS58Format from './setSS58Format';
 
-describe('setPrefix', (): void => {
+describe('setSS58Format', (): void => {
   beforeEach((): void => {
-    setPrefix(68);
+    setSS58Format(68);
   });
 
   it('sets and allows encoding using', (): void => {

packages/util-crypto/src/address/setSS58Format.ts

@@ -6,6 +6,6 @@ import { Prefix } from './types';
 
 import defaults from './defaults';
 
-export default function setPrefix (prefix: Prefix): void {
+export default function setSS58Format (prefix: Prefix): void {
   defaults.prefix = prefix;
 }

packages/util-rlp/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/util-rlp",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "RLP encoding and decoding",
   "main": "index.js",
   "keywords": [
@@ -27,8 +27,8 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/util-rlp#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
-    "@polkadot/util": "^1.2.1"
+    "@babel/runtime": "^7.6.0",
+    "@polkadot/util": "^1.4.1"
   },
   "devDependencies": {
     "ethereumjs-testing": "1.0.4"

packages/util/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/util",
-  "version": "1.2.1",
+  "version": "1.4.1",
   "description": "A collection of useful utilities for @polkadot",
   "main": "index.js",
   "keywords": [
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/polkadot-js/common/tree/master/packages/util#readme",
   "dependencies": {
-    "@babel/runtime": "^7.5.5",
+    "@babel/runtime": "^7.6.0",
     "@types/bn.js": "^4.11.5",
     "bn.js": "^4.11.8",
     "camelcase": "^5.3.1",

packages/util/src/assert.spec.ts

@@ -22,14 +22,4 @@ describe('assert', (): void => {
       (): boolean => assert(false, (): string => 'message from function')
     ).toThrow(/message from function/);
   });
-
-  it('throws a valid constructed ExtError', (): void => {
-    try {
-      assert(false, 'error', -666, 'data');
-    } catch (error) {
-      expect(error.code).toEqual(-666);
-      expect(error.data).toEqual('data');
-      expect(error.message).toEqual('error');
-    }
-  });
 });

packages/util/src/assert.ts

@@ -2,7 +2,6 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import ExtError from './ext/error';
 import isFunction from './is/function';
 
 type MessageFn = () => string;
@@ -11,9 +10,9 @@ type Falsy = null | undefined | false | 0 | ''; // No NaN type
 
 /**
  * @name assert
- * @summary Checks for a valid test, if not ExtError is thrown.
+ * @summary Checks for a valid test, if not Error is thrown.
  * @description
- * Checks that `test` is a truthy value. If value is falsy (`null`, `undefined`, `false`, ...), it throws an ExtError with the supplied `message` and an optional `code` and `data`. When `test` passes, `true` is returned.
+ * Checks that `test` is a truthy value. If value is falsy (`null`, `undefined`, `false`, ...), it throws an Error with the supplied `message`. When `test` passes, `true` is returned.
  * @example
  * <BR>
  *
@@ -21,11 +20,11 @@ type Falsy = null | undefined | false | 0 | ''; // No NaN type
  * const { assert } from '@polkadot/util';
  *
  * assert(true, 'True should be true'); // true returned
- * assert(false, 'False should not be true'); // ExtError thrown
- * assert(false, () => 'message'); // ExtError with 'message'
+ * assert(false, 'False should not be true'); // Error thrown
+ * assert(false, () => 'message'); // Error with 'message'
  * ```
  */
-export default function assert<T> (test: Falsy | T, message: string | MessageFn, code: number = ExtError.CODES.ASSERT, data?: string | number): test is T {
+export default function assert<T> (test: Falsy | T, message: string | MessageFn): test is T {
   if (test) {
     return true;
   }
@@ -34,5 +33,5 @@ export default function assert<T> (test: Falsy | T, message: string | MessageFn,
     message = message();
   }
 
-  throw new ExtError(message, code, data);
+  throw new Error(message);
 }

packages/util/src/ext/error.spec.ts

@@ -1,102 +0,0 @@
-/* eslint-disable @typescript-eslint/unbound-method */
-// Copyright 2017-2019 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
-
-import isError from '../is/error';
-import { ExtError } from '.';
-
-describe('ExtError', (): void => {
-  describe('constructor', (): void => {
-    it('constructs an Error that is still an Error', (): void => {
-      expect(
-        isError(
-          new ExtError()
-        )
-      ).toEqual(true);
-    });
-  });
-
-  describe('static', (): void => {
-    it('exposes the .CODES as a static', (): void => {
-      expect(
-        Object.keys(ExtError.CODES)
-      ).not.toEqual(0);
-    });
-  });
-
-  describe('constructor properties', (): void => {
-    it('sets the .message property', (): void => {
-      expect(
-        new ExtError('test message').message
-      ).toEqual('test message');
-    });
-
-    it("sets the .message to '' when not set", (): void => {
-      expect(
-        new ExtError().message
-      ).toEqual('');
-    });
-
-    it('sets the .code property', (): void => {
-      expect(
-        new ExtError('test message', 1234).code
-      ).toEqual(1234);
-    });
-
-    it('sets the .code to UKNOWN when not set', (): void => {
-      expect(
-        new ExtError('test message').code
-      ).toEqual(ExtError.CODES.UNKNOWN);
-    });
-
-    it('sets the .data property', (): void => {
-      const data = 'here';
-
-      expect(
-        new ExtError('test message', 1234, data).data
-      ).toEqual(data);
-    });
-  });
-
-  describe('stack traces', (): void => {
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    let captureStackTrace: (targetObject: Record<string, any>, constructorOpt?: Function | undefined) => void;
-
-    beforeEach((): void => {
-      captureStackTrace = Error.captureStackTrace;
-
-      Error.captureStackTrace = function (error): void {
-        Object.defineProperty(error, 'stack', {
-          configurable: true,
-          get: function getStack (): string {
-            const value = 'some stack returned';
-
-            Object.defineProperty(this, 'stack', { value });
-
-            return value;
-          }
-        });
-      };
-    });
-
-    afterEach((): void => {
-      Error.captureStackTrace = captureStackTrace;
-    });
-
-    it('captures via captureStackTrace when available', (): void => {
-      expect(
-        new ExtError().stack
-      ).toEqual('some stack returned');
-    });
-
-    it('captures via stack when captureStackTrace not available', (): void => {
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      Error.captureStackTrace = null as any;
-
-      expect(
-        new ExtError().stack.length
-      ).not.toEqual(0);
-    });
-  });
-});

packages/util/src/ext/error.ts

@@ -1,73 +0,0 @@
-// Copyright 2017-2019 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
-
-import { ExtErrorInterface } from '../types';
-
-import isFunction from '../is/function';
-
-const UNKNOWN = -99999;
-
-function extend (that: ExtError, name: string, value?: string | number): void {
-  Object.defineProperty(that, name, {
-    configurable: true,
-    enumerable: false,
-    value
-  });
-}
-
-/**
- * @name ExtError
- * @summary Extension to the basic JS Error.
- * @description
- * The built-in JavaScript Error class is extended by adding a code to allow for Error categorization. In addition to the normal `stack`, `message`, the numeric `code` and `data` (any types) parameters are available on the object.
- * @example
- * <BR>
- *
- * ```javascript
- * const { ExtError } from '@polkadot/util');
- *
- * throw new ExtError('some message', ExtError.CODES.METHOD_NOT_FOUND); // => error.code = -32601
- * ```
- */
-export default class ExtError extends Error implements ExtErrorInterface {
-  public code: number;
-
-  public data?: number | string;
-
-  public message: string;
-
-  public name: string;
-
-  public stack: string;
-
-  public constructor (message = '', code: number = UNKNOWN, data?: number | string) {
-    super();
-
-    // These are actually done via extend below to clean them up
-    this.code = code;
-    this.data = data;
-    this.name = name;
-    this.message = message;
-    this.stack = '';
-
-    extend(this, 'message', String(message));
-    extend(this, 'name', this.constructor.name);
-    extend(this, 'data', data);
-    extend(this, 'code', code);
-
-    // eslint-disable-next-line @typescript-eslint/unbound-method
-    if (isFunction(Error.captureStackTrace)) {
-      Error.captureStackTrace(this, this.constructor);
-    } else {
-      extend(this, 'stack', (new Error(message)).stack);
-    }
-  }
-
-  public static CODES = {
-    ASSERT: -90009,
-    UNKNOWN,
-    INVALID_JSONRPC: -99998,
-    METHOD_NOT_FOUND: -32601 // Rust client
-  };
-}

packages/util/src/ext/index.ts

@@ -1,9 +0,0 @@
-// Copyright 2017-2019 @polkadot/util authors & contributors
-// This software may be modified and distributed under the terms
-// of the Apache-2.0 license. See the LICENSE file for details.
-
-/**
- * @summary Extensions to basic classes
- */
-
-export { default as ExtError } from './error';

packages/util/src/hex/index.ts

@@ -12,4 +12,5 @@ export { default as hexHasPrefix } from './hasPrefix';
 export { default as hexStripPrefix } from './stripPrefix';
 export { default as hexToBn } from './toBn';
 export { default as hexToNumber } from './toNumber';
+export { default as hexToString } from './toString';
 export { default as hexToU8a } from './toU8a';

packages/util/src/hex/toString.spec.ts

@@ -0,0 +1,19 @@
+// Copyright 2017-2019 @polkadot/util authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { hexToString } from '.';
+
+describe('hexToString', (): void => {
+  it('converts an empty to ""', (): void => {
+    expect(
+      hexToString()
+    ).toEqual('');
+  });
+
+  it('converts to a string from hex', (): void => {
+    expect(
+      hexToString('0x68656c6c6f')
+    ).toEqual('hello');
+  });
+});

packages/util/src/hex/toString.ts

@@ -0,0 +1,26 @@
+// Copyright 2017-2019 @polkadot/util authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import u8aToString from '../u8a/toString';
+import hexToU8a from './toU8a';
+
+/**
+ * @name hexToU8a
+ * @summary Creates a Uint8Array object from a hex string.
+ * @description
+ * Hex input values return the actual bytes value converted to a string. Anything that is not a hex string (including the `0x` prefix) throws an error.
+ * @example
+ * <BR>
+ *
+ * ```javascript
+ * import { hexToString } from '@polkadot/util';
+ *
+ * hexToU8a('0x68656c6c6f'); // hello
+ * ```
+ */
+export default function hexToString (_value?: string | null): string {
+  return u8aToString(
+    hexToU8a(_value)
+  );
+}

packages/util/src/hex/toU8a.ts

@@ -8,7 +8,7 @@ import hexStripPrefix from './stripPrefix';
 
 /**
  * @name hexToU8a
- * @summary Creates a Buffer object from a hex string.
+ * @summary Creates a Uint8Array object from a hex string.
  * @description
  * `null` inputs returns an empty `Uint8Array` result. Hex input values return the actual bytes value converted to a Uint8Array. Anything that is not a hex string (including the `0x` prefix) throws an error.
  * @example

packages/util/src/index.ts

@@ -17,7 +17,6 @@ export * from './array';
 export * from './bn';
 export * from './buffer';
 export * from './compact';
-export * from './ext';
 export * from './format';
 export * from './hex';
 export * from './is';

packages/util/src/string/index.ts

@@ -9,5 +9,6 @@
 export { default as stringCamelCase } from './camelCase';
 export { default as stringLowerFirst } from './lowerFirst';
 export { default as stringShorten } from './shorten';
+export { default as stringToHex } from './toHex';
 export { default as stringToU8a } from './toU8a';
 export { default as stringUpperFirst } from './upperFirst';

packages/util/src/string/toHex.spec.ts

@@ -0,0 +1,19 @@
+// Copyright 2017-2019 @polkadot/util authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { stringToHex } from '.';
+
+describe('hexToString', (): void => {
+  it('converts an empty to ""', (): void => {
+    expect(
+      stringToHex()
+    ).toEqual('0x');
+  });
+
+  it('converts to a hex from string', (): void => {
+    expect(
+      stringToHex('hello')
+    ).toEqual('0x68656c6c6f');
+  });
+});

packages/util/src/string/toHex.ts

@@ -0,0 +1,26 @@
+// Copyright 2017-2019 @polkadot/util authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import u8aToHex from '../u8a/toHex';
+import stringToU8a from './toU8a';
+
+/**
+ * @name stringToHex
+ * @summary Creates a hex string from a utf-8 string
+ * @description
+ * String input values return the actual encoded hex value.
+ * @example
+ * <BR>
+ *
+ * ```javascript
+ * import { stringToHex } from '@polkadot/util';
+ *
+ * stringToU8a('hello'); // 0x68656c6c6f
+ * ```
+ */
+export default function stringToHex (value?: string): string {
+  return u8aToHex(
+    stringToU8a(value)
+  );
+}

packages/util/src/types.ts

@@ -8,13 +8,6 @@ export interface ToBn {
   toBn: () => BN;
 }
 
-export interface ExtErrorInterface {
-  code: number;
-  data?: string | number;
-  message: string;
-  stack: string;
-}
-
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 type Logger$Data$Fn = () => any[];
 // eslint-disable-next-line @typescript-eslint/no-explicit-any