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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
/// <reference path="../../core/internal.d.ts" />
const core = globalThis.Deno.core;
const ops = core.ops;
import * as webidl from "ext:deno_webidl/00_webidl.js";
const primordials = globalThis.__bootstrap.primordials;
const {
SafeArrayIterator,
Symbol,
SymbolFor,
ObjectDefineProperty,
ObjectFromEntries,
ObjectEntries,
ReflectGet,
ReflectHas,
Proxy,
} = primordials;
const _persistent = Symbol("[[persistent]]");
class Storage {
[_persistent];
constructor() {
webidl.illegalConstructor();
}
get length() {
webidl.assertBranded(this, StoragePrototype);
return ops.op_webstorage_length(this[_persistent]);
}
key(index) {
webidl.assertBranded(this, StoragePrototype);
const prefix = "Failed to execute 'key' on 'Storage'";
webidl.requiredArguments(arguments.length, 1, prefix);
index = webidl.converters["unsigned long"](index, prefix, "Argument 1");
return ops.op_webstorage_key(index, this[_persistent]);
}
setItem(key, value) {
webidl.assertBranded(this, StoragePrototype);
const prefix = "Failed to execute 'setItem' on 'Storage'";
webidl.requiredArguments(arguments.length, 2, prefix);
key = webidl.converters.DOMString(key, prefix, "Argument 1");
value = webidl.converters.DOMString(value, prefix, "Argument 2");
ops.op_webstorage_set(key, value, this[_persistent]);
}
getItem(key) {
webidl.assertBranded(this, StoragePrototype);
const prefix = "Failed to execute 'getItem' on 'Storage'";
webidl.requiredArguments(arguments.length, 1, prefix);
key = webidl.converters.DOMString(key, prefix, "Argument 1");
return ops.op_webstorage_get(key, this[_persistent]);
}
removeItem(key) {
webidl.assertBranded(this, StoragePrototype);
const prefix = "Failed to execute 'removeItem' on 'Storage'";
webidl.requiredArguments(arguments.length, 1, prefix);
key = webidl.converters.DOMString(key, prefix, "Argument 1");
ops.op_webstorage_remove(key, this[_persistent]);
}
clear() {
webidl.assertBranded(this, StoragePrototype);
ops.op_webstorage_clear(this[_persistent]);
}
}
const StoragePrototype = Storage.prototype;
function createStorage(persistent) {
const storage = webidl.createBranded(Storage);
storage[_persistent] = persistent;
const proxy = new Proxy(storage, {
deleteProperty(target, key) {
if (typeof key == "symbol") {
delete target[key];
} else {
target.removeItem(key);
}
return true;
},
defineProperty(target, key, descriptor) {
if (typeof key == "symbol") {
ObjectDefineProperty(target, key, descriptor);
} else {
target.setItem(key, descriptor.value);
}
return true;
},
get(target, key) {
if (typeof key == "symbol") return target[key];
if (ReflectHas(target, key)) {
return ReflectGet(...new SafeArrayIterator(arguments));
} else {
return target.getItem(key) ?? undefined;
}
},
set(target, key, value) {
if (typeof key == "symbol") {
ObjectDefineProperty(target, key, {
value,
configurable: true,
});
} else {
target.setItem(key, value);
}
return true;
},
has(target, p) {
return p === SymbolFor("Deno.customInspect") ||
(typeof target.getItem(p)) === "string";
},
ownKeys() {
return ops.op_webstorage_iterate_keys(persistent);
},
getOwnPropertyDescriptor(target, key) {
if (arguments.length === 1) {
return undefined;
}
if (ReflectHas(target, key)) {
return undefined;
}
const value = target.getItem(key);
if (value === null) {
return undefined;
}
return {
value,
enumerable: true,
configurable: true,
writable: true,
};
},
});
proxy[SymbolFor("Deno.customInspect")] = function (inspect) {
return `${this.constructor.name} ${
inspect({
length: this.length,
...ObjectFromEntries(ObjectEntries(proxy)),
})
}`;
};
return proxy;
}
let localStorageStorage;
function localStorage() {
if (!localStorageStorage) {
localStorageStorage = createStorage(true);
}
return localStorageStorage;
}
let sessionStorageStorage;
function sessionStorage() {
if (!sessionStorageStorage) {
sessionStorageStorage = createStorage(false);
}
return sessionStorageStorage;
}
export { localStorage, sessionStorage, Storage };
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