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97a591e738
* introduce extension service * deprecate legacy forwarder types * eliminate repeat algorithm emissions * extend logging to preference management * align forwarder ids with vendor ids * fix duplicate policy emissions; debugging required logger enhancements ----- Co-authored-by: Daniel James Smith <2670567+djsmith85@users.noreply.github.com>
34 lines
1.0 KiB
TypeScript
34 lines
1.0 KiB
TypeScript
import { I18nKeyOrLiteral } from "./types";
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/** Recursively freeze an object's own keys
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* @param value the value to freeze
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* @returns `value`
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* @remarks this function is derived from MDN's `deepFreeze`, which
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* has been committed to the public domain.
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*/
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export function deepFreeze<T extends object>(value: T): Readonly<T> {
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const keys = Reflect.ownKeys(value) as (keyof T)[];
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for (const key of keys) {
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const own = value[key];
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if (own && typeof own === "object") {
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deepFreeze(own);
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}
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}
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return Object.freeze(value);
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}
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/** Type guard that returns `true` when the value is an i18n key. */
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export function isI18nKey(value: I18nKeyOrLiteral): value is string {
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return typeof value === "string";
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}
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/** Type guard that returns `true` when the value requires no translation.
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* @remarks the literal value can be accessed using the `.literal` property.
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*/
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export function isLiteral(value: I18nKeyOrLiteral): value is { literal: string } {
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return typeof value === "object" && "literal" in value;
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}
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