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Текущая директория: /opt/BitGoJS/node_modules/ethereumjs-abi/node_modules/ethereumjs-util/dist
Просмотр файла: object.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.defineProperties = void 0;
var assert = require('assert');
var ethjsUtil = require('ethjs-util');
var rlp = require("rlp");
var bytes_1 = require("./bytes");
/**
* Defines properties on a `Object`. It make the assumption that underlying data is binary.
* @param self the `Object` to define properties on
* @param fields an array fields to define. Fields can contain:
* * `name` - the name of the properties
* * `length` - the number of bytes the field can have
* * `allowLess` - if the field can be less than the length
* * `allowEmpty`
* @param data data to be validated against the definitions
* @deprecated
*/
exports.defineProperties = function (self, fields, data) {
self.raw = [];
self._fields = [];
// attach the `toJSON`
self.toJSON = function (label) {
if (label === void 0) { label = false; }
if (label) {
var obj_1 = {};
self._fields.forEach(function (field) {
obj_1[field] = "0x" + self[field].toString('hex');
});
return obj_1;
}
return bytes_1.baToJSON(self.raw);
};
self.serialize = function serialize() {
return rlp.encode(self.raw);
};
fields.forEach(function (field, i) {
self._fields.push(field.name);
function getter() {
return self.raw[i];
}
function setter(v) {
v = bytes_1.toBuffer(v);
if (v.toString('hex') === '00' && !field.allowZero) {
v = Buffer.allocUnsafe(0);
}
if (field.allowLess && field.length) {
v = bytes_1.stripZeros(v);
assert(field.length >= v.length, "The field " + field.name + " must not have more " + field.length + " bytes");
}
else if (!(field.allowZero && v.length === 0) && field.length) {
assert(field.length === v.length, "The field " + field.name + " must have byte length of " + field.length);
}
self.raw[i] = v;
}
Object.defineProperty(self, field.name, {
enumerable: true,
configurable: true,
get: getter,
set: setter,
});
if (field.default) {
self[field.name] = field.default;
}
// attach alias
if (field.alias) {
Object.defineProperty(self, field.alias, {
enumerable: false,
configurable: true,
set: setter,
get: getter,
});
}
});
// if the constuctor is passed data
if (data) {
if (typeof data === 'string') {
data = Buffer.from(ethjsUtil.stripHexPrefix(data), 'hex');
}
if (Buffer.isBuffer(data)) {
data = rlp.decode(data);
}
if (Array.isArray(data)) {
if (data.length > self._fields.length) {
throw new Error('wrong number of fields in data');
}
// make sure all the items are buffers
data.forEach(function (d, i) {
self[self._fields[i]] = bytes_1.toBuffer(d);
});
}
else if (typeof data === 'object') {
var keys_1 = Object.keys(data);
fields.forEach(function (field) {
if (keys_1.indexOf(field.name) !== -1)
self[field.name] = data[field.name];
if (keys_1.indexOf(field.alias) !== -1)
self[field.alias] = data[field.alias];
});
}
else {
throw new Error('invalid data');
}
}
};
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