public resolve()

in src/dependency-container.ts [212:242]

• 25 lines of code
• 5 McCabe index (conditional complexity)

  public resolve<T>(
    token: InjectionToken<T>,
    context: ResolutionContext = new ResolutionContext()
  ): T {
    const registration = this.getRegistration(token);

    if (!registration && isNormalToken(token)) {
      throw new Error(
        `Attempted to resolve unregistered dependency token: "${token.toString()}"`
      );
    }

    this.executePreResolutionInterceptor<T>(token, "Single");

    if (registration) {
      const result = this.resolveRegistration(registration, context) as T;
      this.executePostResolutionInterceptor(token, result, "Single");
      return result;
    }

    // No registration for this token, but since it's a constructor, return an instance
    if (isConstructorToken(token)) {
      const result = this.construct(token, context);
      this.executePostResolutionInterceptor(token, result, "Single");
      return result;
    }

    throw new Error(
      "Attempted to construct an undefined constructor. Could mean a circular dependency problem. Try using `delay` function."
    );
  }