Function instantiateClass

packages/context/src/resolver.ts:47–88

(
  ctor: Constructor<T>,
  ctx: Context,
  session?: ResolutionSession,
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  nonInjectedArgs?: any[],
)

 * @param nonInjectedArgs - Optional array of args for non-injected parameters
 */
export function instantiateClass<T extends object>(
  ctor: Constructor<T>,
  ctx: Context,
  session?: ResolutionSession,
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  nonInjectedArgs?: any[],
): ValueOrPromise<T> {
  /* istanbul ignore if */
  if (debug.enabled) {
    debug('Instantiating %s', getTargetName(ctor));
    if (nonInjectedArgs?.length) {
      debug('Non-injected arguments:', nonInjectedArgs);
    }
  }
  const argsOrPromise = resolveInjectedArguments(
    ctor,
    '',
    ctx,
    session,
    nonInjectedArgs,
  );
  const propertiesOrPromise = resolveInjectedProperties(ctor, ctx, session);
  const inst: ValueOrPromise<T> = transformValueOrPromise(
    argsOrPromise,
    args => {
      /* istanbul ignore if */
      if (debug.enabled) {
        debug('Injected arguments for %s():', ctor.name, args);
      }
      return new ctor(...args);
    },
  );
  return transformValueOrPromise(propertiesOrPromise, props => {
    /* istanbul ignore if */
    if (debug.enabled) {
      debug('Injected properties for %s:', ctor.name, props);
    }
    return transformValueOrPromise<T, T>(inst, obj =>
      Object.assign(obj, props),
    );
  });
}

/**
 * If the scope of current binding is `SINGLETON`, reset the context