PHP WebShell
Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@polkadot/util/cjs
Просмотр файла: lazy.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.lazyMethod = lazyMethod;
exports.lazyMethods = lazyMethods;
/**
* @name lazyMethod
* @description
* Creates a lazy, on-demand getter for the specific value. Upon get the value will be evaluated.
*/
function lazyMethod(result, item, creator, getName, index = 0) {
const name = getName
? getName(item, index)
: item.toString();
let value;
Object.defineProperty(result, name, {
// This allows for re-configuration with the embedded defineProperty below
// and ensures that on tested browsers and Node, it _will_ be redefined
// and thus short-circuited for future access
configurable: true,
enumerable: true,
// Use a function here, we don't want to capture the outer this, i.e.
// don't use arrow functions in this context since we have a this inside
get: function () {
// This check should _always_ be false and unneeded, since we override
// with a value below ... however we ensure we are quire vigilant against
// all environment failures, so we are rather be safe than sorry
if (value === undefined) {
value = creator(item, index, this);
try {
// re-define the property as a value, next time around this
// getter will only return the computed value
Object.defineProperty(this, name, { value });
}
catch {
// ignore any errors, since this _should_ not happen due to
// the "configurable" property above. But if it ever does
// from here-on we will be the cached value the next time
// around (with a very slight dip in performance)
}
}
return value;
}
});
}
/**
* @name lazyMethods
* @description
* Creates lazy, on-demand getters for the specific values.
*/
function lazyMethods(result, items, creator, getName) {
for (let i = 0, count = items.length; i < count; i++) {
lazyMethod(result, items[i], creator, getName, i);
}
return result;
}
Выполнить команду
Для локальной разработки. Не используйте в интернете!