RouteCache Class — astro Architecture

Source Code

packages/astro/src/core/render/route-cache.ts lines 89–122

export class RouteCache {
	private logger: Logger;
	private cache: Record<string, RouteCacheEntry> = {};
	private runtimeMode: RuntimeMode;

	constructor(logger: Logger, runtimeMode: RuntimeMode = 'production') {
		this.logger = logger;
		this.runtimeMode = runtimeMode;
	}

	/** Clear the cache. */
	clearAll() {
		this.cache = {};
	}

	set(route: RouteData, entry: RouteCacheEntry): void {
		const key = this.key(route);
		// NOTE: This shouldn't be called on an already-cached component.
		// Warn here so that an unexpected double-call of getStaticPaths()
		// isn't invisible and developer can track down the issue.
		if (this.runtimeMode === 'production' && this.cache[key]?.staticPaths) {
			this.logger.warn(null, `Internal Warning: route cache overwritten. (${key})`);
		}
		this.cache[key] = entry;
	}

	get(route: RouteData): RouteCacheEntry | undefined {
		return this.cache[this.key(route)];
	}

	key(route: RouteData) {
		return `${route.route}_${route.component}`;
	}
}