Function executeComponent

packages/qwik/src/core/render/execute-component.ts:28–103

(
  rCtx: RenderContext,
  elCtx: QContext,
  attempt?: number
)

}

export const executeComponent = (
  rCtx: RenderContext,
  elCtx: QContext,
  attempt?: number
): ValueOrPromise<ExecuteComponentOutput> => {
  elCtx.$flags$ &= ~HOST_FLAG_DIRTY;
  elCtx.$flags$ |= HOST_FLAG_MOUNTED;
  elCtx.$slots$ = [];
  elCtx.li.length = 0;

  const hostElement = elCtx.$element$;
  const componentQRL = elCtx.$componentQrl$;
  const props = elCtx.$props$;
  const iCtx = newInvokeContext(rCtx.$static$.$locale$, hostElement, undefined, RenderEvent);
  const waitOn: Promise<unknown>[] = (iCtx.$waitOn$ = []);
  assertDefined(componentQRL, `render: host element to render must have a $renderQrl$:`, elCtx);
  assertDefined(props, `render: host element to render must have defined props`, elCtx);

  // Set component context
  const newCtx = pushRenderContext(rCtx);
  newCtx.$cmpCtx$ = elCtx;
  newCtx.$slotCtx$ = undefined;

  // Invoke render hook
  iCtx.$subscriber$ = [0, hostElement];
  iCtx.$renderCtx$ = rCtx;

  // Resolve render function
  componentQRL.$setContainer$(rCtx.$static$.$containerState$.$containerEl$);
  const componentFn = componentQRL.getFn(iCtx);

  return safeCall(
    () => componentFn(props),
    (jsxNode) => {
      return maybeThen(
        isServerPlatform()
          ? maybeThen(promiseAllLazy(waitOn), () =>
              // Run dirty tasks before SSR output is generated.
              maybeThen(executeSSRTasks(rCtx.$static$.$containerState$, rCtx), () =>
                promiseAllLazy(waitOn)
              )
            )
          : promiseAllLazy(waitOn),
        () => {
          if (elCtx.$flags$ & HOST_FLAG_DIRTY) {
            if (attempt && attempt > 100) {
              logWarn(`Infinite loop detected. Element: ${elCtx.$componentQrl$?.$symbol$}`);
            } else {
              return executeComponent(rCtx, elCtx, attempt ? attempt + 1 : 1);
            }
          }
          return {
            node: jsxNode,
            rCtx: newCtx,
          };
        }
      );
    },