Function withIsolationScope

packages/core/src/currentScopes.ts:120–140

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

 * Either creates a new active isolation scope, or sets the given isolation scope as active scope in the given callback.
 */
export function withIsolationScope<T>(
  ...rest:
    | [callback: (isolationScope: Scope) => T]
    | [isolationScope: Scope | undefined, callback: (isolationScope: 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 [isolationScope, callback] = rest;

    if (!isolationScope) {
      return acs.withIsolationScope(callback);
    }

    return acs.withSetIsolationScope(isolationScope, callback);
  }

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

/**
 * Get the currently active client.