Method replaceModule

packages/core/injector/container.ts:129–161

(
    metatypeToReplace: ModuleMetatype,
    newMetatype: ModuleMetatype,
    scope: ModuleScope,
  )

  }

  public async replaceModule(
    metatypeToReplace: ModuleMetatype,
    newMetatype: ModuleMetatype,
    scope: ModuleScope,
  ): Promise<
    | {
        moduleRef: Module;
        inserted: boolean;
      }
    | undefined
  > {
    // In DependenciesScanner#scanForModules we already check for undefined or invalid modules
    // We still need to catch the edge-case of `forwardRef(() => undefined)`
    if (!metatypeToReplace || !newMetatype) {
      throw new UndefinedForwardRefException(scope);
    }

    const { token } = await this.moduleCompiler.compile(metatypeToReplace);
    const { type, dynamicMetadata } =
      await this.moduleCompiler.compile(newMetatype);

    return {
      moduleRef: await this.setModule(
        {
          token,
          type,
          dynamicMetadata,
        },
        scope,
      ),
      inserted: false,
    };
  }

  private async setModule(
    { token, dynamicMetadata, type }: ModuleFactory,