49 lines
1.4 KiB
TypeScript
49 lines
1.4 KiB
TypeScript
/*
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Copyright 2017 Jeremy Scheff
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Copyright 2019 Florian Dold
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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or implied. See the License for the specific language governing
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permissions and limitations under the License.
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*/
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import { IDBKeyPath, IDBValidKey } from "../idbtypes.js";
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import { extractKey } from "./extractKey.js";
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import { valueToKey } from "./valueToKey.js";
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export function getIndexKeys(
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value: any,
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keyPath: IDBKeyPath | IDBKeyPath[],
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multiEntry: boolean,
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): IDBValidKey[] {
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if (multiEntry && Array.isArray(keyPath)) {
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const keys = [];
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for (const subkeyPath of keyPath) {
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const key = extractKey(subkeyPath, value);
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try {
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const k = valueToKey(key);
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keys.push(k);
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} catch {
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// Ignore invalid subkeys
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}
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}
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return keys;
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} else if (typeof keyPath === "string" || Array.isArray(keyPath)) {
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let key = extractKey(keyPath, value);
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if (key == null) {
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return [];
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}
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return [valueToKey(key)];
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} else {
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throw Error(`unsupported key path: ${typeof keyPath}`);
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}
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}
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