fake-indexeddb
Version:
Fake IndexedDB: a pure JS in-memory implementation of the IndexedDB API
62 lines (61 loc) • 1.93 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _errors = require("./errors.js");
// https://w3c.github.io/IndexedDB/#convert-value-to-key
const valueToKey = (input, seen) => {
if (typeof input === "number") {
if (isNaN(input)) {
throw new _errors.DataError();
}
return input;
} else if (Object.prototype.toString.call(input) === "[object Date]") {
const ms = input.valueOf();
if (isNaN(ms)) {
throw new _errors.DataError();
}
return new Date(ms);
} else if (typeof input === "string") {
return input;
} else if (input instanceof ArrayBuffer || typeof SharedArrayBuffer !== "undefined" && input instanceof SharedArrayBuffer || typeof ArrayBuffer !== "undefined" && ArrayBuffer.isView && ArrayBuffer.isView(input)) {
let arrayBuffer;
let offset = 0;
let length = 0;
if (input instanceof ArrayBuffer || typeof SharedArrayBuffer !== "undefined" && input instanceof SharedArrayBuffer) {
arrayBuffer = input;
length = input.byteLength;
} else {
arrayBuffer = input.buffer;
offset = input.byteOffset;
length = input.byteLength;
}
if (arrayBuffer.detached) {
return new ArrayBuffer(0);
}
return arrayBuffer.slice(offset, offset + length);
} else if (Array.isArray(input)) {
if (seen === undefined) {
seen = new Set();
} else if (seen.has(input)) {
throw new _errors.DataError();
}
seen.add(input);
const keys = [];
for (let i = 0; i < input.length; i++) {
const hop = Object.hasOwn(input, i);
if (!hop) {
throw new _errors.DataError();
}
const entry = input[i];
const key = valueToKey(entry, seen);
keys.push(key);
}
return keys;
} else {
throw new _errors.DataError();
}
};
var _default = exports.default = valueToKey;
module.exports = exports.default;