ethers.js/packages/properties/index.js
2019-06-12 01:01:04 -04:00

123 lines
3.8 KiB
JavaScript

"use strict";
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var errors = __importStar(require("@ethersproject/errors"));
function defineReadOnly(object, name, value) {
Object.defineProperty(object, name, {
enumerable: true,
value: value,
writable: false,
});
}
exports.defineReadOnly = defineReadOnly;
// Crawl up the constructor chain to find a static method
function getStatic(ctor, key) {
for (var i = 0; i < 32; i++) {
if (ctor[key]) {
return ctor[key];
}
if (!ctor.prototype || typeof (ctor.prototype) !== "object") {
break;
}
ctor = Object.getPrototypeOf(ctor.prototype).constructor;
}
return null;
}
exports.getStatic = getStatic;
function resolveProperties(object) {
var result = {};
var promises = [];
Object.keys(object).forEach(function (key) {
var value = object[key];
if (value instanceof Promise) {
promises.push(value.then(function (value) {
result[key] = value;
return null;
}));
}
else {
result[key] = value;
}
});
return Promise.all(promises).then(function () {
return result;
});
}
exports.resolveProperties = resolveProperties;
function checkProperties(object, properties) {
if (!object || typeof (object) !== "object") {
errors.throwError("invalid object", errors.INVALID_ARGUMENT, {
argument: "object",
value: object
});
}
Object.keys(object).forEach(function (key) {
if (!properties[key]) {
errors.throwError("invalid object key - " + key, errors.INVALID_ARGUMENT, {
argument: "transaction",
value: object,
key: key
});
}
});
}
exports.checkProperties = checkProperties;
function shallowCopy(object) {
var result = {};
for (var key in object) {
result[key] = object[key];
}
return result;
}
exports.shallowCopy = shallowCopy;
var opaque = { bigint: true, boolean: true, number: true, string: true };
// Returns a new copy of object, such that no properties may be replaced.
// New properties may be added only to objects.
function deepCopy(object) {
// Opaque objects are not mutable, so safe to copy by assignment
if (object === undefined || object === null || opaque[typeof (object)]) {
return object;
}
// Arrays are mutable, so we need to create a copy
if (Array.isArray(object)) {
return Object.freeze(object.map(function (item) { return deepCopy(item); }));
}
if (typeof (object) === "object") {
// Immutable objects are safe to just use
if (Object.isFrozen(object)) {
return object;
}
var result = {};
for (var key in object) {
var value = object[key];
if (value === undefined) {
continue;
}
defineReadOnly(result, key, deepCopy(value));
}
return result;
}
// The function type is also immutable, so safe to copy by assignment
if (typeof (object) === "function") {
return object;
}
throw new Error("Cannot deepCopy " + typeof (object));
}
exports.deepCopy = deepCopy;
var Description = /** @class */ (function () {
function Description(info) {
for (var key in info) {
this[key] = deepCopy(info[key]);
}
Object.freeze(this);
}
return Description;
}());
exports.Description = Description;