@melonproject/protocol
Version:
Technology Regulated and Operated Investment Funds
47 lines (46 loc) • 2.73 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const isAddress_1 = require("../../../../utils/checks/isAddress");
const ensure_1 = require("../../../../utils/guards/ensure");
const ensureAccountAddress_1 = require("../../../../utils/environment/ensureAccountAddress");
const transactionFactory_1 = require("../../../../utils/solidity/transactionFactory");
const Contracts_1 = require("../../../../Contracts");
const ensureSufficientBalance_1 = require("../guards/ensureSufficientBalance");
const withContractAddressQuery_1 = require("../../../../utils/solidity/withContractAddressQuery");
const guard = (environment, { howMuch, spender }) => __awaiter(this, void 0, void 0, function* () {
ensureAccountAddress_1.ensureAccountAddress(environment);
ensure_1.ensure(isAddress_1.isAddress(spender), `Spender is not an address. Got: ${spender}`, spender);
ensure_1.ensure(isAddress_1.isAddress(howMuch.token.address), `Spend token needs to have an address. Got: ${howMuch.address}`, spender);
yield ensureSufficientBalance_1.ensureSufficientBalance(environment, howMuch, environment.wallet.address.toString());
});
const prepareArgs = (_, { howMuch, spender }) => __awaiter(this, void 0, void 0, function* () {
return [
spender.toString(),
howMuch.quantity.toString(),
];
});
const postProcess = () => __awaiter(this, void 0, void 0, function* () {
return true;
});
/**
* Approves the `spender` to spend `howMuch` of a specified token
* (as a `quantity`)
*
* @param environment The environment to execute this transaction on.
* It should contain an `environment.wallet` containing the subjects address
*
* @param params.howMuch The token quantity that is allowed to spend
* @param params.spender The address of the approved spender
*
* @returns A boolean indicating if the transaction went through
*/
const approve = withContractAddressQuery_1.withContractAddressQuery(['howMuch', 'token', 'address'], transactionFactory_1.transactionFactory('approve', Contracts_1.Contracts.StandardToken, guard, prepareArgs, postProcess));
exports.approve = approve;