adhan 2.0.0空安全版高纬度计算礼拜时间抛NaN异常

使用Flutter/Dart生态的adhan礼拜时间计算包（版本：^2.0.0-nullsafety.2）时，若传入坐标的纬度值处于(-90, -67.5944046]或[65.9277379, 90)的高纬度区间，程序会触发未处理异常。

最小复现代码 #

import 'package:adhan/adhan.dart';

void main() {

//latitude values between (-67.5944046 and -90) and between (65.9277379 and 90)
//throw Unhandled exception!

// var prayerTimes = PrayerTimes(Coordinates(-67.5944046, 120),
// DateComponents.from(DateTime.now()), CalculationMethod.umm_al_qura.getParameters());
var prayerTimes = PrayerTimes(Coordinates(65.9277379, 120),
DateComponents.from(DateTime.now()), CalculationMethod.umm_al_qura.getParameters());
print(prayerTimes.fajr);
}

预期行为 #

传入合法经纬度参数时，应正常输出对应坐标、对应日期的准确礼拜时间。

实际行为 #

程序抛出未处理异常后退出，错误提示为Invalid argument(s): value should not be infinite or NaN，异常栈定位到TimeComponents.fromDouble方法，完整异常信息如下：

C:/Flutter_SDK/flutter/bin/cache/dart-sdk/bin/dart.exe --enable-asserts "E:\Flutter_UI\hij_greg_temp - Copy\lib\main.dart"
Unhandled exception:
Invalid argument(s): value should not be infinite or NaN
#0 TimeComponents.fromDouble (package:adhan/src/data/time_components.dart:12:7)
#1 new PrayerTimes._ (package:adhan/src/prayer_times.dart:133:37)
#2 new PrayerTimes (package:adhan/src/prayer_times.dart:53:24)
#3 main (package:hij_greg_temp/main.dart:10:21)
#4 _delayEntrypointInvocation. (dart:isolate-patch/isolate_patch.dart:297:19)
#5 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)

Process finished with exit code 255

环境信息 #

当前Flutter环境（flutter doctor执行结果）：

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, 3.1.0-9.0.pre, on Microsoft Windows [Version 10.0.19043.1766], locale en-US)
[√] Android toolchain - develop for Android devices (Android SDK version 32.0.0)
[√] Chrome - develop for the web
[!] Visual Studio - develop for Windows (Visual Studio Enterprise 2019 16.11.1)
X Visual Studio is missing necessary components. Please re-run the Visual Studio installer for the "Desktop development with C++" workload, and include these components:
MSVC v142 - VS 2019 C++ x64/x86 build tools
- If there are multiple build tool versions available, install the latest
C++ CMake tools for Windows
Windows 10 SDK
[√] Android Studio (version 2021.1)
[√] Android Studio (version 4.1)
[√] Android Studio (version 4.2)
[√] VS Code (version 1.68.1)
[√] Connected device (4 available)
[√] HTTP Host Availability

! Doctor found issues in 1 category.

补充说明 #

• 该包^1.1.14旧版本无此问题，但旧版本未支持空安全，无法适配当前项目的空安全要求，无法回退使用。

内容的提问来源于stack exchange，提问作者MAlhamry