930 lines
32 KiB
JavaScript
930 lines
32 KiB
JavaScript
'use strict';
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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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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// See: https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI
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var address_1 = require("./address");
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var bignumber_1 = require("./bignumber");
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var bytes_1 = require("./bytes");
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var utf8_1 = require("./utf8");
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var properties_1 = require("./properties");
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var errors = __importStar(require("./errors"));
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var paramTypeBytes = new RegExp(/^bytes([0-9]*)$/);
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var paramTypeNumber = new RegExp(/^(u?int)([0-9]*)$/);
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var paramTypeArray = new RegExp(/^(.*)\[([0-9]*)\]$/);
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exports.defaultCoerceFunc = function (type, value) {
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var match = type.match(paramTypeNumber);
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if (match && parseInt(match[2]) <= 48) {
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return value.toNumber();
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}
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return value;
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};
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///////////////////////////////////
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// Parsing for Solidity Signatures
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var regexParen = new RegExp("^([^)(]*)\\((.*)\\)([^)(]*)$");
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var regexIdentifier = new RegExp("^[A-Za-z_][A-Za-z0-9_]*$");
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function verifyType(type) {
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// These need to be transformed to their full description
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if (type.match(/^uint($|[^1-9])/)) {
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type = 'uint256' + type.substring(4);
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}
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else if (type.match(/^int($|[^1-9])/)) {
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type = 'int256' + type.substring(3);
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}
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return type;
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}
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function parseParam(param, allowIndexed) {
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function throwError(i) {
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throw new Error('unexpected character "' + param[i] + '" at position ' + i + ' in "' + param + '"');
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}
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var parent = { type: '', name: '', state: { allowType: true } };
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var node = parent;
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for (var i = 0; i < param.length; i++) {
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var c = param[i];
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switch (c) {
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case '(':
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if (!node.state.allowParams) {
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throwError(i);
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}
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node.state.allowType = false;
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node.type = verifyType(node.type);
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node.components = [{ type: '', name: '', parent: node, state: { allowType: true } }];
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node = node.components[0];
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break;
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case ')':
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delete node.state;
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if (allowIndexed && node.name === 'indexed') {
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node.indexed = true;
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node.name = '';
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}
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node.type = verifyType(node.type);
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var child = node;
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node = node.parent;
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if (!node) {
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throwError(i);
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}
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delete child.parent;
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node.state.allowParams = false;
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node.state.allowName = true;
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node.state.allowArray = true;
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break;
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case ',':
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delete node.state;
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if (allowIndexed && node.name === 'indexed') {
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node.indexed = true;
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node.name = '';
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}
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node.type = verifyType(node.type);
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var sibling = { type: '', name: '', parent: node.parent, state: { allowType: true } };
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node.parent.components.push(sibling);
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delete node.parent;
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node = sibling;
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break;
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// Hit a space...
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case ' ':
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// If reading type, the type is done and may read a param or name
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if (node.state.allowType) {
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if (node.type !== '') {
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node.type = verifyType(node.type);
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delete node.state.allowType;
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node.state.allowName = true;
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node.state.allowParams = true;
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}
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}
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// If reading name, the name is done
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if (node.state.allowName) {
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if (node.name !== '') {
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if (allowIndexed && node.name === 'indexed') {
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node.indexed = true;
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node.name = '';
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}
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else {
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node.state.allowName = false;
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}
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}
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}
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break;
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case '[':
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if (!node.state.allowArray) {
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throwError(i);
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}
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node.type += c;
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node.state.allowArray = false;
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node.state.allowName = false;
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node.state.readArray = true;
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break;
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case ']':
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if (!node.state.readArray) {
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throwError(i);
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}
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node.type += c;
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node.state.readArray = false;
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node.state.allowArray = true;
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node.state.allowName = true;
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break;
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default:
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if (node.state.allowType) {
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node.type += c;
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node.state.allowParams = true;
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node.state.allowArray = true;
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}
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else if (node.state.allowName) {
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node.name += c;
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delete node.state.allowArray;
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}
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else if (node.state.readArray) {
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node.type += c;
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}
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else {
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throwError(i);
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}
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}
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}
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if (node.parent) {
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throw new Error("unexpected eof");
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}
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delete parent.state;
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if (allowIndexed && node.name === 'indexed') {
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node.indexed = true;
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node.name = '';
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}
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parent.type = verifyType(parent.type);
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return parent;
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}
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// @TODO: Better return type
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function parseSignatureEvent(fragment) {
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var abi = {
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anonymous: false,
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inputs: [],
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name: '',
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type: 'event'
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};
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var match = fragment.match(regexParen);
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if (!match) {
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throw new Error('invalid event: ' + fragment);
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}
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abi.name = match[1].trim();
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splitNesting(match[2]).forEach(function (param) {
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param = parseParam(param, true);
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param.indexed = !!param.indexed;
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abi.inputs.push(param);
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});
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match[3].split(' ').forEach(function (modifier) {
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switch (modifier) {
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case 'anonymous':
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abi.anonymous = true;
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break;
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case '':
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break;
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default:
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console.log('unknown modifier: ' + modifier);
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}
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});
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if (abi.name && !abi.name.match(regexIdentifier)) {
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throw new Error('invalid identifier: "' + abi.name + '"');
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}
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return abi;
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}
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function parseSignatureFunction(fragment) {
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var abi = {
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constant: false,
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inputs: [],
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name: '',
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outputs: [],
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payable: false,
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stateMutability: null,
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type: 'function'
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};
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var comps = fragment.split(' returns ');
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var left = comps[0].match(regexParen);
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if (!left) {
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throw new Error('invalid signature');
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}
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abi.name = left[1].trim();
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if (!abi.name.match(regexIdentifier)) {
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throw new Error('invalid identifier: "' + left[1] + '"');
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}
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splitNesting(left[2]).forEach(function (param) {
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abi.inputs.push(parseParam(param));
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});
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left[3].split(' ').forEach(function (modifier) {
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switch (modifier) {
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case 'constant':
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abi.constant = true;
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break;
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case 'payable':
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abi.payable = true;
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break;
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case 'pure':
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abi.constant = true;
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abi.stateMutability = 'pure';
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break;
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case 'view':
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abi.constant = true;
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abi.stateMutability = 'view';
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break;
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case '':
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break;
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default:
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console.log('unknown modifier: ' + modifier);
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}
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});
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// We have outputs
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if (comps.length > 1) {
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var right = comps[1].match(regexParen);
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if (right[1].trim() != '' || right[3].trim() != '') {
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throw new Error('unexpected tokens');
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}
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splitNesting(right[2]).forEach(function (param) {
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abi.outputs.push(parseParam(param));
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});
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}
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return abi;
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}
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function parseParamType(type) {
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return parseParam(type, true);
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}
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exports.parseParamType = parseParamType;
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// @TODO: Allow a second boolean to expose names
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function formatParamType(paramType) {
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return getParamCoder(exports.defaultCoerceFunc, paramType).type;
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}
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exports.formatParamType = formatParamType;
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// @TODO: Allow a second boolean to expose names and modifiers
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function formatSignature(fragment) {
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return fragment.name + '(' + fragment.inputs.map(function (i) { return formatParamType(i); }).join(',') + ')';
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}
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exports.formatSignature = formatSignature;
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function parseSignature(fragment) {
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if (typeof (fragment) === 'string') {
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// Make sure the "returns" is surrounded by a space and all whitespace is exactly one space
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fragment = fragment.replace(/\(/g, ' (').replace(/\)/g, ') ').replace(/\s+/g, ' ');
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fragment = fragment.trim();
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if (fragment.substring(0, 6) === 'event ') {
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return parseSignatureEvent(fragment.substring(6).trim());
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}
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else {
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if (fragment.substring(0, 9) === 'function ') {
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fragment = fragment.substring(9);
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}
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return parseSignatureFunction(fragment.trim());
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}
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}
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throw new Error('unknown signature');
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}
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exports.parseSignature = parseSignature;
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var Coder = /** @class */ (function () {
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function Coder(coerceFunc, name, type, localName, dynamic) {
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this.coerceFunc = coerceFunc;
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this.name = name;
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this.type = type;
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this.localName = localName;
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this.dynamic = dynamic;
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}
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return Coder;
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}());
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// Clones the functionality of an existing Coder, but without a localName
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var CoderAnonymous = /** @class */ (function (_super) {
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__extends(CoderAnonymous, _super);
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function CoderAnonymous(coder) {
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var _this = _super.call(this, coder.coerceFunc, coder.name, coder.type, undefined, coder.dynamic) || this;
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properties_1.defineReadOnly(_this, 'coder', coder);
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return _this;
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}
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CoderAnonymous.prototype.encode = function (value) { return this.coder.encode(value); };
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CoderAnonymous.prototype.decode = function (data, offset) { return this.coder.decode(data, offset); };
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return CoderAnonymous;
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}(Coder));
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var CoderNull = /** @class */ (function (_super) {
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__extends(CoderNull, _super);
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function CoderNull(coerceFunc, localName) {
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return _super.call(this, coerceFunc, 'null', '', localName, false) || this;
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}
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CoderNull.prototype.encode = function (value) {
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return bytes_1.arrayify([]);
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};
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CoderNull.prototype.decode = function (data, offset) {
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if (offset > data.length) {
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throw new Error('invalid null');
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}
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return {
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consumed: 0,
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value: this.coerceFunc('null', undefined)
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};
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};
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return CoderNull;
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}(Coder));
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var CoderNumber = /** @class */ (function (_super) {
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__extends(CoderNumber, _super);
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function CoderNumber(coerceFunc, size, signed, localName) {
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var _this = this;
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var name = ((signed ? 'int' : 'uint') + (size * 8));
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_this = _super.call(this, coerceFunc, name, name, localName, false) || this;
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_this.size = size;
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_this.signed = signed;
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return _this;
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}
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CoderNumber.prototype.encode = function (value) {
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try {
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var v = bignumber_1.bigNumberify(value);
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if (this.signed) {
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var bounds = bignumber_1.ConstantMaxUint256.maskn(this.size * 8 - 1);
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if (v.gt(bounds)) {
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throw new Error('out-of-bounds');
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}
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bounds = bounds.add(bignumber_1.ConstantOne).mul(bignumber_1.ConstantNegativeOne);
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if (v.lt(bounds)) {
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throw new Error('out-of-bounds');
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}
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}
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else if (v.lt(bignumber_1.ConstantZero) || v.gt(bignumber_1.ConstantMaxUint256.maskn(this.size * 8))) {
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throw new Error('out-of-bounds');
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}
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v = v.toTwos(this.size * 8).maskn(this.size * 8);
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if (this.signed) {
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v = v.fromTwos(this.size * 8).toTwos(256);
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}
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return bytes_1.padZeros(bytes_1.arrayify(v), 32);
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}
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catch (error) {
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errors.throwError('invalid number value', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: this.name,
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value: value
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});
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}
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return null;
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};
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CoderNumber.prototype.decode = function (data, offset) {
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if (data.length < offset + 32) {
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errors.throwError('insufficient data for ' + this.name + ' type', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: this.name,
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value: bytes_1.hexlify(data.slice(offset, offset + 32))
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});
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}
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var junkLength = 32 - this.size;
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var value = bignumber_1.bigNumberify(data.slice(offset + junkLength, offset + 32));
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if (this.signed) {
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value = value.fromTwos(this.size * 8);
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}
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else {
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value = value.maskn(this.size * 8);
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}
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return {
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consumed: 32,
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value: this.coerceFunc(this.name, value),
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};
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};
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return CoderNumber;
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}(Coder));
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var uint256Coder = new CoderNumber(function (type, value) { return value; }, 32, false, 'none');
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var CoderBoolean = /** @class */ (function (_super) {
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__extends(CoderBoolean, _super);
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function CoderBoolean(coerceFunc, localName) {
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return _super.call(this, coerceFunc, 'bool', 'bool', localName, false) || this;
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}
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CoderBoolean.prototype.encode = function (value) {
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return uint256Coder.encode(!!value ? 1 : 0);
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};
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CoderBoolean.prototype.decode = function (data, offset) {
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try {
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var result = uint256Coder.decode(data, offset);
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}
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catch (error) {
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if (error.reason === 'insufficient data for uint256 type') {
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errors.throwError('insufficient data for boolean type', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: 'boolean',
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value: error.value
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});
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}
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throw error;
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}
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return {
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consumed: result.consumed,
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value: this.coerceFunc('bool', !result.value.isZero())
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};
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};
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return CoderBoolean;
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}(Coder));
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var CoderFixedBytes = /** @class */ (function (_super) {
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__extends(CoderFixedBytes, _super);
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function CoderFixedBytes(coerceFunc, length, localName) {
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var _this = this;
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var name = ('bytes' + length);
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_this = _super.call(this, coerceFunc, name, name, localName, false) || this;
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_this.length = length;
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return _this;
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}
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CoderFixedBytes.prototype.encode = function (value) {
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var result = new Uint8Array(32);
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try {
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var data = bytes_1.arrayify(value);
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if (data.length !== this.length) {
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throw new Error('incorrect data length');
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}
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result.set(data);
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}
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catch (error) {
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errors.throwError('invalid ' + this.name + ' value', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: this.name,
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value: (error.value || value)
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});
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}
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return result;
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};
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CoderFixedBytes.prototype.decode = function (data, offset) {
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if (data.length < offset + 32) {
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errors.throwError('insufficient data for ' + name + ' type', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: this.name,
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value: bytes_1.hexlify(data.slice(offset, offset + 32))
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});
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}
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return {
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consumed: 32,
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value: this.coerceFunc(this.name, bytes_1.hexlify(data.slice(offset, offset + this.length)))
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};
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};
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return CoderFixedBytes;
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}(Coder));
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var CoderAddress = /** @class */ (function (_super) {
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__extends(CoderAddress, _super);
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function CoderAddress(coerceFunc, localName) {
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return _super.call(this, coerceFunc, 'address', 'address', localName, false) || this;
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}
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CoderAddress.prototype.encode = function (value) {
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var result = new Uint8Array(32);
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try {
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result.set(bytes_1.arrayify(address_1.getAddress(value)), 12);
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}
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catch (error) {
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errors.throwError('invalid address', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: 'address',
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value: value
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});
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}
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return result;
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};
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CoderAddress.prototype.decode = function (data, offset) {
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if (data.length < offset + 32) {
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errors.throwError('insufficuent data for address type', errors.INVALID_ARGUMENT, {
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arg: this.localName,
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coderType: 'address',
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value: bytes_1.hexlify(data.slice(offset, offset + 32))
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});
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}
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return {
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consumed: 32,
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value: this.coerceFunc('address', address_1.getAddress(bytes_1.hexlify(data.slice(offset + 12, offset + 32))))
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};
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};
|
|
return CoderAddress;
|
|
}(Coder));
|
|
function _encodeDynamicBytes(value) {
|
|
var dataLength = 32 * Math.ceil(value.length / 32);
|
|
var padding = new Uint8Array(dataLength - value.length);
|
|
return bytes_1.concat([
|
|
uint256Coder.encode(value.length),
|
|
value,
|
|
padding
|
|
]);
|
|
}
|
|
function _decodeDynamicBytes(data, offset, localName) {
|
|
if (data.length < offset + 32) {
|
|
errors.throwError('insufficient data for dynamicBytes length', errors.INVALID_ARGUMENT, {
|
|
arg: localName,
|
|
coderType: 'dynamicBytes',
|
|
value: bytes_1.hexlify(data.slice(offset, offset + 32))
|
|
});
|
|
}
|
|
var length = uint256Coder.decode(data, offset).value;
|
|
try {
|
|
length = length.toNumber();
|
|
}
|
|
catch (error) {
|
|
errors.throwError('dynamic bytes count too large', errors.INVALID_ARGUMENT, {
|
|
arg: localName,
|
|
coderType: 'dynamicBytes',
|
|
value: length.toString()
|
|
});
|
|
}
|
|
if (data.length < offset + 32 + length) {
|
|
errors.throwError('insufficient data for dynamicBytes type', errors.INVALID_ARGUMENT, {
|
|
arg: localName,
|
|
coderType: 'dynamicBytes',
|
|
value: bytes_1.hexlify(data.slice(offset, offset + 32 + length))
|
|
});
|
|
}
|
|
return {
|
|
consumed: 32 + 32 * Math.ceil(length / 32),
|
|
value: data.slice(offset + 32, offset + 32 + length),
|
|
};
|
|
}
|
|
var CoderDynamicBytes = /** @class */ (function (_super) {
|
|
__extends(CoderDynamicBytes, _super);
|
|
function CoderDynamicBytes(coerceFunc, localName) {
|
|
return _super.call(this, coerceFunc, 'bytes', 'bytes', localName, true) || this;
|
|
}
|
|
CoderDynamicBytes.prototype.encode = function (value) {
|
|
try {
|
|
return _encodeDynamicBytes(bytes_1.arrayify(value));
|
|
}
|
|
catch (error) {
|
|
errors.throwError('invalid bytes value', errors.INVALID_ARGUMENT, {
|
|
arg: this.localName,
|
|
coderType: 'bytes',
|
|
value: error.value
|
|
});
|
|
}
|
|
return null;
|
|
};
|
|
CoderDynamicBytes.prototype.decode = function (data, offset) {
|
|
var result = _decodeDynamicBytes(data, offset, this.localName);
|
|
result.value = this.coerceFunc('bytes', bytes_1.hexlify(result.value));
|
|
return result;
|
|
};
|
|
return CoderDynamicBytes;
|
|
}(Coder));
|
|
var CoderString = /** @class */ (function (_super) {
|
|
__extends(CoderString, _super);
|
|
function CoderString(coerceFunc, localName) {
|
|
return _super.call(this, coerceFunc, 'string', 'string', localName, true) || this;
|
|
}
|
|
CoderString.prototype.encode = function (value) {
|
|
if (typeof (value) !== 'string') {
|
|
errors.throwError('invalid string value', errors.INVALID_ARGUMENT, {
|
|
arg: this.localName,
|
|
coderType: 'string',
|
|
value: value
|
|
});
|
|
}
|
|
return _encodeDynamicBytes(utf8_1.toUtf8Bytes(value));
|
|
};
|
|
CoderString.prototype.decode = function (data, offset) {
|
|
var result = _decodeDynamicBytes(data, offset, this.localName);
|
|
result.value = this.coerceFunc('string', utf8_1.toUtf8String(result.value));
|
|
return result;
|
|
};
|
|
return CoderString;
|
|
}(Coder));
|
|
function alignSize(size) {
|
|
return 32 * Math.ceil(size / 32);
|
|
}
|
|
function pack(coders, values) {
|
|
if (Array.isArray(values)) {
|
|
// do nothing
|
|
}
|
|
else if (values && typeof (values) === 'object') {
|
|
var arrayValues = [];
|
|
coders.forEach(function (coder) {
|
|
arrayValues.push(values[coder.localName]);
|
|
});
|
|
values = arrayValues;
|
|
}
|
|
else {
|
|
errors.throwError('invalid tuple value', errors.INVALID_ARGUMENT, {
|
|
coderType: 'tuple',
|
|
value: values
|
|
});
|
|
}
|
|
if (coders.length !== values.length) {
|
|
errors.throwError('types/value length mismatch', errors.INVALID_ARGUMENT, {
|
|
coderType: 'tuple',
|
|
value: values
|
|
});
|
|
}
|
|
var parts = [];
|
|
coders.forEach(function (coder, index) {
|
|
parts.push({ dynamic: coder.dynamic, value: coder.encode(values[index]) });
|
|
});
|
|
var staticSize = 0, dynamicSize = 0;
|
|
parts.forEach(function (part) {
|
|
if (part.dynamic) {
|
|
staticSize += 32;
|
|
dynamicSize += alignSize(part.value.length);
|
|
}
|
|
else {
|
|
staticSize += alignSize(part.value.length);
|
|
}
|
|
});
|
|
var offset = 0, dynamicOffset = staticSize;
|
|
var data = new Uint8Array(staticSize + dynamicSize);
|
|
parts.forEach(function (part) {
|
|
if (part.dynamic) {
|
|
//uint256Coder.encode(dynamicOffset).copy(data, offset);
|
|
data.set(uint256Coder.encode(dynamicOffset), offset);
|
|
offset += 32;
|
|
//part.value.copy(data, dynamicOffset); @TODO
|
|
data.set(part.value, dynamicOffset);
|
|
dynamicOffset += alignSize(part.value.length);
|
|
}
|
|
else {
|
|
//part.value.copy(data, offset); @TODO
|
|
data.set(part.value, offset);
|
|
offset += alignSize(part.value.length);
|
|
}
|
|
});
|
|
return data;
|
|
}
|
|
function unpack(coders, data, offset) {
|
|
var baseOffset = offset;
|
|
var consumed = 0;
|
|
var value = [];
|
|
coders.forEach(function (coder) {
|
|
if (coder.dynamic) {
|
|
var dynamicOffset = uint256Coder.decode(data, offset);
|
|
var result = coder.decode(data, baseOffset + dynamicOffset.value.toNumber());
|
|
// The dynamic part is leap-frogged somewhere else; doesn't count towards size
|
|
result.consumed = dynamicOffset.consumed;
|
|
}
|
|
else {
|
|
var result = coder.decode(data, offset);
|
|
}
|
|
if (result.value != undefined) {
|
|
value.push(result.value);
|
|
}
|
|
offset += result.consumed;
|
|
consumed += result.consumed;
|
|
});
|
|
coders.forEach(function (coder, index) {
|
|
var name = coder.localName;
|
|
if (!name) {
|
|
return;
|
|
}
|
|
if (name === 'length') {
|
|
name = '_length';
|
|
}
|
|
if (value[name] != null) {
|
|
return;
|
|
}
|
|
value[name] = value[index];
|
|
});
|
|
return {
|
|
value: value,
|
|
consumed: consumed
|
|
};
|
|
}
|
|
var CoderArray = /** @class */ (function (_super) {
|
|
__extends(CoderArray, _super);
|
|
function CoderArray(coerceFunc, coder, length, localName) {
|
|
var _this = this;
|
|
var type = (coder.type + '[' + (length >= 0 ? length : '') + ']');
|
|
var dynamic = (length === -1 || coder.dynamic);
|
|
_this = _super.call(this, coerceFunc, 'array', type, localName, dynamic) || this;
|
|
_this.coder = coder;
|
|
_this.length = length;
|
|
return _this;
|
|
}
|
|
CoderArray.prototype.encode = function (value) {
|
|
if (!Array.isArray(value)) {
|
|
errors.throwError('expected array value', errors.INVALID_ARGUMENT, {
|
|
arg: this.localName,
|
|
coderType: 'array',
|
|
value: value
|
|
});
|
|
}
|
|
var count = this.length;
|
|
var result = new Uint8Array(0);
|
|
if (count === -1) {
|
|
count = value.length;
|
|
result = uint256Coder.encode(count);
|
|
}
|
|
errors.checkArgumentCount(count, value.length, 'in coder array' + (this.localName ? (" " + this.localName) : ""));
|
|
var coders = [];
|
|
for (var i = 0; i < value.length; i++) {
|
|
coders.push(this.coder);
|
|
}
|
|
return bytes_1.concat([result, pack(coders, value)]);
|
|
};
|
|
CoderArray.prototype.decode = function (data, offset) {
|
|
// @TODO:
|
|
//if (data.length < offset + length * 32) { throw new Error('invalid array'); }
|
|
var consumed = 0;
|
|
var count = this.length;
|
|
if (count === -1) {
|
|
try {
|
|
var decodedLength = uint256Coder.decode(data, offset);
|
|
}
|
|
catch (error) {
|
|
errors.throwError('insufficient data for dynamic array length', errors.INVALID_ARGUMENT, {
|
|
arg: this.localName,
|
|
coderType: 'array',
|
|
value: error.value
|
|
});
|
|
}
|
|
try {
|
|
count = decodedLength.value.toNumber();
|
|
}
|
|
catch (error) {
|
|
errors.throwError('array count too large', errors.INVALID_ARGUMENT, {
|
|
arg: this.localName,
|
|
coderType: 'array',
|
|
value: decodedLength.value.toString()
|
|
});
|
|
}
|
|
consumed += decodedLength.consumed;
|
|
offset += decodedLength.consumed;
|
|
}
|
|
var coders = [];
|
|
for (var i = 0; i < count; i++) {
|
|
coders.push(new CoderAnonymous(this.coder));
|
|
}
|
|
var result = unpack(coders, data, offset);
|
|
result.consumed += consumed;
|
|
result.value = this.coerceFunc(this.type, result.value);
|
|
return result;
|
|
};
|
|
return CoderArray;
|
|
}(Coder));
|
|
var CoderTuple = /** @class */ (function (_super) {
|
|
__extends(CoderTuple, _super);
|
|
function CoderTuple(coerceFunc, coders, localName) {
|
|
var _this = this;
|
|
var dynamic = false;
|
|
var types = [];
|
|
coders.forEach(function (coder) {
|
|
if (coder.dynamic) {
|
|
dynamic = true;
|
|
}
|
|
types.push(coder.type);
|
|
});
|
|
var type = ('tuple(' + types.join(',') + ')');
|
|
_this = _super.call(this, coerceFunc, 'tuple', type, localName, dynamic) || this;
|
|
_this.coders = coders;
|
|
return _this;
|
|
}
|
|
CoderTuple.prototype.encode = function (value) {
|
|
return pack(this.coders, value);
|
|
};
|
|
CoderTuple.prototype.decode = function (data, offset) {
|
|
var result = unpack(this.coders, data, offset);
|
|
result.value = this.coerceFunc(this.type, result.value);
|
|
return result;
|
|
};
|
|
return CoderTuple;
|
|
}(Coder));
|
|
/*
|
|
function getTypes(coders) {
|
|
var type = coderTuple(coders).type;
|
|
return type.substring(6, type.length - 1);
|
|
}
|
|
*/
|
|
function splitNesting(value) {
|
|
var result = [];
|
|
var accum = '';
|
|
var depth = 0;
|
|
for (var offset = 0; offset < value.length; offset++) {
|
|
var c = value[offset];
|
|
if (c === ',' && depth === 0) {
|
|
result.push(accum);
|
|
accum = '';
|
|
}
|
|
else {
|
|
accum += c;
|
|
if (c === '(') {
|
|
depth++;
|
|
}
|
|
else if (c === ')') {
|
|
depth--;
|
|
if (depth === -1) {
|
|
throw new Error('unbalanced parenthsis');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
result.push(accum);
|
|
return result;
|
|
}
|
|
// @TODO: Is there a way to return "class"?
|
|
var paramTypeSimple = {
|
|
address: CoderAddress,
|
|
bool: CoderBoolean,
|
|
string: CoderString,
|
|
bytes: CoderDynamicBytes,
|
|
};
|
|
function getTupleParamCoder(coerceFunc, components, localName) {
|
|
if (!components) {
|
|
components = [];
|
|
}
|
|
var coders = [];
|
|
components.forEach(function (component) {
|
|
coders.push(getParamCoder(coerceFunc, component));
|
|
});
|
|
return new CoderTuple(coerceFunc, coders, localName);
|
|
}
|
|
function getParamCoder(coerceFunc, param) {
|
|
var coder = paramTypeSimple[param.type];
|
|
if (coder) {
|
|
return new coder(coerceFunc, param.name);
|
|
}
|
|
var match = param.type.match(paramTypeNumber);
|
|
if (match) {
|
|
var size = parseInt(match[2] || "256");
|
|
if (size === 0 || size > 256 || (size % 8) !== 0) {
|
|
errors.throwError('invalid ' + match[1] + ' bit length', errors.INVALID_ARGUMENT, {
|
|
arg: 'param',
|
|
value: param
|
|
});
|
|
}
|
|
return new CoderNumber(coerceFunc, size / 8, (match[1] === 'int'), param.name);
|
|
}
|
|
var match = param.type.match(paramTypeBytes);
|
|
if (match) {
|
|
var size = parseInt(match[1]);
|
|
if (size === 0 || size > 32) {
|
|
errors.throwError('invalid bytes length', errors.INVALID_ARGUMENT, {
|
|
arg: 'param',
|
|
value: param
|
|
});
|
|
}
|
|
return new CoderFixedBytes(coerceFunc, size, param.name);
|
|
}
|
|
var match = param.type.match(paramTypeArray);
|
|
if (match) {
|
|
var size = parseInt(match[2] || "-1");
|
|
param = properties_1.jsonCopy(param);
|
|
param.type = match[1];
|
|
return new CoderArray(coerceFunc, getParamCoder(coerceFunc, param), size, param.name);
|
|
}
|
|
if (param.type.substring(0, 5) === 'tuple') {
|
|
return getTupleParamCoder(coerceFunc, param.components, param.name);
|
|
}
|
|
if (param.type === '') {
|
|
return new CoderNull(coerceFunc, param.name);
|
|
}
|
|
errors.throwError('invalid type', errors.INVALID_ARGUMENT, {
|
|
arg: 'type',
|
|
value: param.type
|
|
});
|
|
return null;
|
|
}
|
|
var AbiCoder = /** @class */ (function () {
|
|
function AbiCoder(coerceFunc) {
|
|
errors.checkNew(this, AbiCoder);
|
|
if (!coerceFunc) {
|
|
coerceFunc = exports.defaultCoerceFunc;
|
|
}
|
|
properties_1.defineReadOnly(this, 'coerceFunc', coerceFunc);
|
|
}
|
|
AbiCoder.prototype.encode = function (types, values) {
|
|
if (types.length !== values.length) {
|
|
errors.throwError('types/values length mismatch', errors.INVALID_ARGUMENT, {
|
|
count: { types: types.length, values: values.length },
|
|
value: { types: types, values: values }
|
|
});
|
|
}
|
|
var coders = [];
|
|
types.forEach(function (type) {
|
|
// Convert types to type objects
|
|
// - "uint foo" => { type: "uint", name: "foo" }
|
|
// - "tuple(uint, uint)" => { type: "tuple", components: [ { type: "uint" }, { type: "uint" }, ] }
|
|
var typeObject = null;
|
|
if (typeof (type) === 'string') {
|
|
typeObject = parseParam(type);
|
|
}
|
|
else {
|
|
typeObject = type;
|
|
}
|
|
coders.push(getParamCoder(this.coerceFunc, typeObject));
|
|
}, this);
|
|
return bytes_1.hexlify(new CoderTuple(this.coerceFunc, coders, '_').encode(values));
|
|
};
|
|
AbiCoder.prototype.decode = function (types, data) {
|
|
var coders = [];
|
|
types.forEach(function (type) {
|
|
// See encode for details
|
|
var typeObject = null;
|
|
if (typeof (type) === 'string') {
|
|
typeObject = parseParam(type);
|
|
}
|
|
else {
|
|
typeObject = properties_1.jsonCopy(type);
|
|
}
|
|
coders.push(getParamCoder(this.coerceFunc, typeObject));
|
|
}, this);
|
|
return new CoderTuple(this.coerceFunc, coders, '_').decode(bytes_1.arrayify(data), 0).value;
|
|
};
|
|
return AbiCoder;
|
|
}());
|
|
exports.AbiCoder = AbiCoder;
|
|
exports.defaultAbiCoder = new AbiCoder();
|