openethereum/js/packages/abi/encoder/encoder.js
Jaco Greeff 49fdd23d58 Ui 2 move to packages/* (#6113)
* Move secureApi to shell

* Extract isTestnet test

* Use mobx + subscriptions for status

* Re-add status indicator

* Add lerna

* Move intial packages to js/packages

* Move 3rdparty/{email,sms}-verification to correct location

* Move package.json & README to library src

* Move tests for library packages

* Move views & dapps to packages

* Move i18n to root

* Move shell to actual src (main app)

* Remove ~ references

* Change ~ to root (explicit imports)

* Finalise convert of ~

* Move views into dapps as well

* Move dapps to packages/

* Fix references

* Update css

* Update test spec locations

* Update tests

* Case fix

* Skip flakey tests

* Update enzyme

* Skip previously ignored tests

* Allow empty api for hw

* Re-add theme for embed
2017-07-21 15:46:53 +02:00

76 lines
2.5 KiB
JavaScript

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import { padAddress, padBool, padBytes, padFixedBytes, padU32, padString } from '../util/pad';
import Mediate from './mediate';
import Token from '../token/token';
import { isArray, isInstanceOf } from '../util/types';
export default class Encoder {
static encode (tokens) {
if (!isArray(tokens)) {
throw new Error('tokens should be array of Token');
}
const mediates = tokens.map((token, index) => Encoder.encodeToken(token, index));
const inits = mediates
.map((mediate, idx) => mediate.init(Mediate.offsetFor(mediates, idx)))
.join('');
const closings = mediates
.map((mediate, idx) => mediate.closing(Mediate.offsetFor(mediates, idx)))
.join('');
return `${inits}${closings}`;
}
static encodeToken (token, index = 0) {
if (!isInstanceOf(token, Token)) {
throw new Error('token should be instanceof Token');
}
try {
switch (token.type) {
case 'address':
return new Mediate('raw', padAddress(token.value));
case 'int':
case 'uint':
return new Mediate('raw', padU32(token.value));
case 'bool':
return new Mediate('raw', padBool(token.value));
case 'fixedBytes':
return new Mediate('raw', padFixedBytes(token.value));
case 'bytes':
return new Mediate('prefixed', padBytes(token.value));
case 'string':
return new Mediate('prefixed', padString(token.value));
case 'fixedArray':
case 'array':
return new Mediate(token.type, token.value.map((token) => Encoder.encodeToken(token)));
}
} catch (e) {
throw new Error(`Cannot encode token #${index} [${token.type}: ${token.value}]. ${e.message}`);
}
throw new Error(`Invalid token type ${token.type} in encodeToken`);
}
}