browserfs
Version:
A filesystem in your browser!
61 lines • 2.26 kB
JavaScript
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
exports.__esModule = true;
var key_value_filesystem_1 = require("../generic/key_value_filesystem");
/**
* A simple in-memory key-value store backed by a JavaScript object.
*/
var InMemoryStore = (function () {
function InMemoryStore() {
this.store = {};
}
InMemoryStore.prototype.name = function () { return InMemoryFileSystem.Name; };
InMemoryStore.prototype.clear = function () { this.store = {}; };
InMemoryStore.prototype.beginTransaction = function (type) {
return new key_value_filesystem_1.SimpleSyncRWTransaction(this);
};
InMemoryStore.prototype.get = function (key) {
return this.store[key];
};
InMemoryStore.prototype.put = function (key, data, overwrite) {
if (!overwrite && this.store.hasOwnProperty(key)) {
return false;
}
this.store[key] = data;
return true;
};
InMemoryStore.prototype.del = function (key) {
delete this.store[key];
};
return InMemoryStore;
}());
exports.InMemoryStore = InMemoryStore;
/**
* A simple in-memory file system backed by an InMemoryStore.
* Files are not persisted across page loads.
*/
var InMemoryFileSystem = (function (_super) {
__extends(InMemoryFileSystem, _super);
function InMemoryFileSystem() {
return _super.call(this, { store: new InMemoryStore() }) || this;
}
/**
* Creates an InMemoryFileSystem instance.
*/
InMemoryFileSystem.Create = function (options, cb) {
cb(null, new InMemoryFileSystem());
};
return InMemoryFileSystem;
}(key_value_filesystem_1.SyncKeyValueFileSystem));
InMemoryFileSystem.Name = "InMemory";
InMemoryFileSystem.Options = {};
exports["default"] = InMemoryFileSystem;
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