Santhosh Janardhanan
de2d83092e
- Delete old Vite+Svelte frontend - Initialize new SvelteKit project with TypeScript - Configure Tailwind CSS v4 + DaisyUI - Implement JWT authentication with auto-refresh - Create login page with form validation (Zod) - Add protected route guards - Update Docker configuration for single-stage build - Add E2E tests with Playwright (6/11 passing) - Fix Svelte 5 reactivity with $state() runes Known issues: - 5 E2E tests failing (timing/async issues) - Token refresh implementation needs debugging - Validation error display timing
76 lines
2.8 KiB
JavaScript
76 lines
2.8 KiB
JavaScript
import { hasDomain } from "./domain.js";
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import { noSuggest } from "./errors.js";
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import { ancestorsOf } from "./objectKinds.js";
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import { NoopBase } from "./records.js";
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// even though the value we attach will be identical, we use this so classes
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// won't be treated as instanceof a Trait
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const implementedTraits = noSuggest("implementedTraits");
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export const hasTrait = (traitClass) => (o) => {
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if (!hasDomain(o, "object"))
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return false;
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if (implementedTraits in o.constructor &&
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o.constructor[implementedTraits].includes(traitClass))
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return true;
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// emulate standard instanceof behavior
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return ancestorsOf(o).includes(traitClass);
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};
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/** @ts-ignore required to extend NoopBase */
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export class Trait extends NoopBase {
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static get [Symbol.hasInstance]() {
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return hasTrait(this);
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}
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traitsOf() {
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return implementedTraits in this.constructor ?
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this.constructor[implementedTraits]
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: [];
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}
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}
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const collectPrototypeDescriptors = (trait) => {
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let proto = trait.prototype;
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let result = {};
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do {
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// ensure prototypes are sorted from lowest to highest precedence
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result = Object.assign(Object.getOwnPropertyDescriptors(proto), result);
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proto = Object.getPrototypeOf(proto);
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} while (proto !== Object.prototype && proto !== null);
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return result;
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};
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export const compose = ((...traits) => {
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const base = function (...args) {
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for (const trait of traits) {
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const instance = Reflect.construct(trait, args, this.constructor);
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Object.assign(this, instance);
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}
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};
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const flatImplementedTraits = [];
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for (const trait of traits) {
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// copy static properties
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Object.assign(base, trait);
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// flatten and copy prototype
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Object.defineProperties(base.prototype, collectPrototypeDescriptors(trait));
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if (implementedTraits in trait) {
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// add any ancestor traits from which the current trait was composed
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for (const innerTrait of trait[implementedTraits]) {
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if (!flatImplementedTraits.includes(innerTrait))
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flatImplementedTraits.push(innerTrait);
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}
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}
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if (!flatImplementedTraits.includes(trait))
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flatImplementedTraits.push(trait);
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}
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Object.defineProperty(base, implementedTraits, {
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value: flatImplementedTraits,
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enumerable: false
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});
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return base;
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});
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export const implement = (...args) => {
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if (args[args.length - 1] instanceof Trait)
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return compose(...args);
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const implementation = args[args.length - 1];
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const base = compose(...args.slice(0, -1));
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// copy implementation last since it overrides traits
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Object.defineProperties(base.prototype, Object.getOwnPropertyDescriptors(implementation));
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return base;
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};
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