check() — astro Function Reference

Architecture documentation for the check() function in server.ts from the astro codebase.

Function typescript CoreAstro CoreMiddleware

Entity Profile

CoreAstro→ CoreMiddleware→ check() — astro Function Reference

Dependency Diagram

graph TD
  be065432_7194_061e_9db9_7c1038799602["check()"]
  e59bec1a_ac20_e899_75d6_a672374af970["server.ts"]
  be065432_7194_061e_9db9_7c1038799602 -->|defined in| e59bec1a_ac20_e899_75d6_a672374af970
  style be065432_7194_061e_9db9_7c1038799602 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/integrations/svelte/src/server.ts lines 7–15

function check(Component: any) {
	if (typeof Component !== 'function') return false;
	// Svelte 5 generated components always accept a `$$renderer` prop (previously called `$$payload`).
	// This assumes that the SSR build does not minify it (which Astro enforces by default).
	// This isn't the best check, but the only other option otherwise is to try to render the
	// component, which is taxing. We'll leave it as a last resort for the future for now.
	const componentString = Component.toString();
	return componentString.includes('$$payload') || componentString.includes('$$renderer');
}