286 lines
12 KiB
JavaScript
286 lines
12 KiB
JavaScript
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'use strict';
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
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result["default"] = mod;
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var interface_js_1 = require("./interface.js");
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var bignumber_js_1 = require("../utils/bignumber.js");
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var properties_1 = require("../utils/properties");
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var errors = __importStar(require("../utils/errors"));
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var allowedTransactionKeys = {
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data: true, from: true, gasLimit: true, gasPrice: true, nonce: true, to: true, value: true
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};
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function copyObject(object) {
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var result = {};
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for (var key in object) {
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result[key] = object[key];
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}
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return result;
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}
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function runMethod(contract, functionName, estimateOnly) {
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var method = contract.interface.functions[functionName];
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return function () {
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var params = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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params[_i] = arguments[_i];
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}
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var transaction = {};
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// If 1 extra parameter was passed in, it contains overrides
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if (params.length === method.inputs.length + 1 && typeof (params[params.length - 1]) === 'object') {
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transaction = copyObject(params.pop());
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// Check for unexpected keys (e.g. using "gas" instead of "gasLimit")
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for (var key in transaction) {
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if (!allowedTransactionKeys[key]) {
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throw new Error('unknown transaction override ' + key);
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}
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}
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}
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if (params.length != method.inputs.length) {
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throw new Error('incorrect number of arguments');
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}
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// Check overrides make sense
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['data', 'to'].forEach(function (key) {
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if (transaction[key] != null) {
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throw new Error('cannot override ' + key);
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}
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});
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// Send to the contract address
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transaction.to = contract.addressPromise;
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transaction.data = method.encode(params);
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if (method.type === 'call') {
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// Call (constant functions) always cost 0 ether
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if (estimateOnly) {
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return Promise.resolve(bignumber_js_1.ConstantZero);
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}
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// Check overrides make sense
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['gasLimit', 'gasPrice', 'value'].forEach(function (key) {
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if (transaction[key] != null) {
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throw new Error('call cannot override ' + key);
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}
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});
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if (transaction.from == null && contract.signer) {
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if (contract.signer.address) {
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transaction.from = contract.signer.address;
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}
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else if (contract.signer.getAddress) {
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transaction.from = contract.signer.getAddress();
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}
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}
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return properties_1.resolveProperties(transaction).then(function (transaction) {
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return contract.provider.call(transaction).then(function (value) {
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try {
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var result = method.decode(value);
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if (method.outputs.length === 1) {
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result = result[0];
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}
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return result;
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}
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catch (error) {
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if (value === '0x' && method.outputs.length > 0) {
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errors.throwError('call exception', errors.CALL_EXCEPTION, {
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address: contract.address,
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method: method.signature,
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value: params
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});
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}
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throw error;
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}
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});
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});
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}
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else if (method.type === 'transaction') {
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if (!contract.signer) {
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return Promise.reject(new Error('missing signer'));
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}
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// Make sure they aren't overriding something they shouldn't
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if (transaction.from != null) {
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throw new Error('transaction cannot override from');
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}
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// Only computing the transaction estimate
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if (estimateOnly) {
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if (contract.signer.estimateGas) {
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return contract.signer.estimateGas(transaction);
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}
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if (contract.signer.address) {
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transaction.from = contract.signer.address;
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}
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else if (contract.signer.getAddress) {
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transaction.from = contract.signer.getAddress();
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}
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return properties_1.resolveProperties(transaction).then(function (transaction) {
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return contract.provider.estimateGas(transaction);
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});
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}
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// If the signer supports sendTrasaction, use it
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if (contract.signer.sendTransaction) {
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return contract.signer.sendTransaction(transaction);
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}
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if (!contract.signer.sign) {
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return Promise.reject(new Error('custom signer does not support signing'));
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}
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if (transaction.chainId == null) {
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transaction.chainId = contract.provider.getNetwork().then(function (network) {
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return network.chainId;
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});
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}
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if (transaction.gasLimit == null) {
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if (contract.signer.defaultGasLimit) {
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transaction.gasLimit = contract.signer.defaultGasLimit;
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}
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else {
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transaction.gasLimit = 200000;
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}
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}
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if (!transaction.nonce) {
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if (contract.signer.getTransactionCount) {
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transaction.nonce = contract.signer.getTransactionCount();
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}
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else if (contract.signer.address) {
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transaction.nonce = contract.provider.getTransactionCount(contract.signer.address);
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}
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else if (contract.signer.getAddress) {
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transaction.nonce = contract.provider.getTransactionCount(contract.signer.getAddress());
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}
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else {
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throw new Error('cannot determine nonce');
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}
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}
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if (!transaction.gasPrice) {
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if (contract.signer.defaultGasPrice) {
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transaction.gasPrice = contract.signer.defaultGasPrice;
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}
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else {
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transaction.gasPrice = contract.provider.getGasPrice();
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}
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}
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return properties_1.resolveProperties(transaction).then(function (transaction) {
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var signedTransaction = contract.signer.sign(transaction);
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return contract.provider.sendTransaction(signedTransaction);
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});
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}
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throw new Error('unsupport type - ' + method.type);
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};
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}
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var Contract = /** @class */ (function () {
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function Contract(addressOrName, contractInterface, signerOrProvider) {
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//if (!(this instanceof Contract)) { throw new Error('missing new'); }
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var _this = this;
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// @TODO: Maybe still check the addressOrName looks like a valid address or name?
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//address = getAddress(address);
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if (contractInterface instanceof interface_js_1.Interface) {
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properties_1.defineReadOnly(this, 'interface', contractInterface);
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}
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else {
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properties_1.defineReadOnly(this, 'interface', new interface_js_1.Interface(contractInterface));
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}
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if (!signerOrProvider) {
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throw new Error('missing signer or provider');
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}
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var signer = signerOrProvider;
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var provider = null;
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if (signerOrProvider.provider) {
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provider = signerOrProvider.provider;
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}
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else {
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provider = signerOrProvider;
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signer = null;
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}
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properties_1.defineReadOnly(this, 'address', addressOrName);
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properties_1.defineReadOnly(this, 'signer', signer);
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properties_1.defineReadOnly(this, 'provider', provider);
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properties_1.defineReadOnly(this, 'addressPromise', provider.resolveName(addressOrName));
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properties_1.defineReadOnly(this, 'estimate', {});
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properties_1.defineReadOnly(this, 'events', {});
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properties_1.defineReadOnly(this, 'functions', {});
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Object.keys(this.interface.functions).forEach(function (name) {
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var run = runMethod(_this, name, false);
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if (_this[name] == null) {
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properties_1.defineReadOnly(_this, name, run);
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}
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else {
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console.log('WARNING: Multiple definitions for ' + name);
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}
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if (_this.functions[name] == null) {
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properties_1.defineReadOnly(_this.functions, name, run);
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properties_1.defineReadOnly(_this.estimate, name, runMethod(_this, name, true));
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}
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});
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Object.keys(this.interface.events).forEach(function (eventName) {
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var eventInfo = _this.interface.events[eventName];
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var eventCallback = null;
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var addressPromise = _this.addressPromise;
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function handleEvent(log) {
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addressPromise.then(function (address) {
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// Not meant for us (the topics just has the same name)
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if (address != log.address) {
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return;
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}
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try {
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var result = eventInfo.decode(log.data, log.topics);
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// Some useful things to have with the log
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log.args = result;
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log.event = eventName;
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log.parse = eventInfo.parse;
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log.removeListener = function () {
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provider.removeListener(eventInfo.topics, handleEvent);
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};
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log.getBlock = function () { return provider.getBlock(log.blockHash); ; };
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log.getTransaction = function () { return provider.getTransaction(log.transactionHash); };
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log.getTransactionReceipt = function () { return provider.getTransactionReceipt(log.transactionHash); };
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log.eventSignature = eventInfo.signature;
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eventCallback.apply(log, Array.prototype.slice.call(result));
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}
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catch (error) {
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console.log(error);
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}
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});
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}
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var property = {
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enumerable: true,
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get: function () {
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return eventCallback;
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},
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set: function (value) {
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if (!value) {
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value = null;
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}
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if (!value && eventCallback) {
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provider.removeListener(eventInfo.topics, handleEvent);
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}
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else if (value && !eventCallback) {
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provider.on(eventInfo.topics, handleEvent);
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}
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eventCallback = value;
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}
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};
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var propertyName = 'on' + eventName.toLowerCase();
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if (_this[propertyName] == null) {
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Object.defineProperty(_this, propertyName, property);
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}
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Object.defineProperty(_this.events, eventName, property);
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}, this);
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}
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Contract.prototype.connect = function (signerOrProvider) {
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return new Contract(this.address, this.interface, signerOrProvider);
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};
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Contract.prototype.deploy = function (bytecode) {
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var args = [];
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for (var _i = 1; _i < arguments.length; _i++) {
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args[_i - 1] = arguments[_i];
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}
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if (this.signer == null) {
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throw new Error('missing signer'); // @TODO: errors.throwError
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}
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// @TODO: overrides of args.length = this.interface.deployFunction.inputs.length + 1
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return this.signer.sendTransaction({
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data: this.interface.deployFunction.encode(bytecode, args)
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});
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};
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return Contract;
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}());
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exports.Contract = Contract;
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