129 lines
4.8 KiB
JavaScript
129 lines
4.8 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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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 (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.defineProperties = void 0;
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var assert_1 = __importDefault(require("assert"));
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var internal_1 = require("./internal");
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var rlp = __importStar(require("rlp"));
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var bytes_1 = require("./bytes");
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/**
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* Defines properties on a `Object`. It make the assumption that underlying data is binary.
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* @param self the `Object` to define properties on
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* @param fields an array fields to define. Fields can contain:
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* * `name` - the name of the properties
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* * `length` - the number of bytes the field can have
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* * `allowLess` - if the field can be less than the length
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* * `allowEmpty`
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* @param data data to be validated against the definitions
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* @deprecated
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*/
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var defineProperties = function (self, fields, data) {
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self.raw = [];
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self._fields = [];
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// attach the `toJSON`
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self.toJSON = function (label) {
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if (label === void 0) { label = false; }
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if (label) {
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var obj_1 = {};
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self._fields.forEach(function (field) {
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obj_1[field] = "0x" + self[field].toString('hex');
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});
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return obj_1;
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}
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return (0, bytes_1.baToJSON)(self.raw);
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};
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self.serialize = function serialize() {
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return rlp.encode(self.raw);
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};
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fields.forEach(function (field, i) {
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self._fields.push(field.name);
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function getter() {
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return self.raw[i];
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}
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function setter(v) {
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v = (0, bytes_1.toBuffer)(v);
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if (v.toString('hex') === '00' && !field.allowZero) {
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v = Buffer.allocUnsafe(0);
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}
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if (field.allowLess && field.length) {
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v = (0, bytes_1.unpadBuffer)(v);
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(0, assert_1.default)(field.length >= v.length, "The field " + field.name + " must not have more " + field.length + " bytes");
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}
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else if (!(field.allowZero && v.length === 0) && field.length) {
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(0, assert_1.default)(field.length === v.length, "The field " + field.name + " must have byte length of " + field.length);
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}
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self.raw[i] = v;
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}
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Object.defineProperty(self, field.name, {
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enumerable: true,
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configurable: true,
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get: getter,
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set: setter,
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});
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if (field.default) {
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self[field.name] = field.default;
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}
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// attach alias
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if (field.alias) {
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Object.defineProperty(self, field.alias, {
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enumerable: false,
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configurable: true,
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set: setter,
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get: getter,
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});
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}
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});
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// if the constuctor is passed data
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if (data) {
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if (typeof data === 'string') {
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data = Buffer.from((0, internal_1.stripHexPrefix)(data), 'hex');
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}
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if (Buffer.isBuffer(data)) {
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data = rlp.decode(data);
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}
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if (Array.isArray(data)) {
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if (data.length > self._fields.length) {
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throw new Error('wrong number of fields in data');
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}
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// make sure all the items are buffers
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data.forEach(function (d, i) {
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self[self._fields[i]] = (0, bytes_1.toBuffer)(d);
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});
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}
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else if (typeof data === 'object') {
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var keys_1 = Object.keys(data);
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fields.forEach(function (field) {
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if (keys_1.indexOf(field.name) !== -1)
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self[field.name] = data[field.name];
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if (keys_1.indexOf(field.alias) !== -1)
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self[field.alias] = data[field.alias];
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});
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}
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else {
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throw new Error('invalid data');
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}
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}
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};
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exports.defineProperties = defineProperties;
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//# sourceMappingURL=object.js.map
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