Function withScope

packages/core/src/currentScopes.ts:73–91

(
  ...rest: [callback: (scope: Scope) => T] | [scope: Scope | undefined, callback: (scope: Scope) => T]
)

 * Either creates a new active scope, or sets the given scope as active scope in the given callback.
 */
export function withScope<T>(
  ...rest: [callback: (scope: Scope) => T] | [scope: Scope | undefined, callback: (scope: Scope) => T]
): T {
  const carrier = getMainCarrier();
  const acs = getAsyncContextStrategy(carrier);

  // If a scope is defined, we want to make this the active scope instead of the default one
  if (rest.length === 2) {
    const [scope, callback] = rest;

    if (!scope) {
      return acs.withScope(callback);
    }

    return acs.withSetScope(scope, callback);
  }

  return acs.withScope(rest[0]);
}

/**
 * Attempts to fork the current isolation scope and the current scope based on the current async context strategy. If no