使用scala本机构建iOS应用程序

Question

我试图使用scala本机在os x上构建一个iOS应用程序，并在进行sbt构建时遇到了许多问题。任何关于该做什么的提示都是受欢迎的。

我为build.sbt文件使用Xcode目录设置了iOS，如下所示：

    nativeCompileOptions := Seq("-v",  
    "-isysroot/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator10.3.sdk")

    nativeLinkingOptions := Seq("-v",
    "-I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include",
    "-L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib",
    "-isysroot/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator10.3.sdk")

• 当对nativelib中包含的c文件(例如包装、时间、动态调度、gc、posix、see (c++)、展开和目标)完成初始编译时，我看不到向sbt编译命令行添加选项的方法。由于这些编译创建了.o文件(而不是.ll)，一旦这些编译完成，目标平台就已经设置好了。下面是一个示例汇编： /Users/nnovod/tools/clang+llvm-4.0.0-x86_64-apple-darwin/bin/clang -I/usr/local/ -I/Users/nnovod/tools/clang+llvm-4.0.0-x86_64-apple-darwin/include -c /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/posix.c -o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/posix.c.o
• 在编译scala本机代码时，我可以通过nativeCompileOptions添加选项，并将xcode模拟器sdk目录添加为系统根目录(-isysroot ./iPhoneSimator.10.3.sdk)，尽管有关于“用x86_64-apple-ios10.3.0覆盖模块目标三重”的警告。
• 链接时有两个问题:a)找不到gc库(我需要为iOS构建一个库吗？是波姆的交叉建筑吗？)(B)最初为MacOS完成的编译，现在与为iOS编写的编译相冲突。以下是sbt生成的链接命令： "/usr/bin/ld“-demangle -lto_library -dynamic -arch x86_64 -ios_simulator_version_min 10.3.0 -syslibroot -syslibroot -o /Users/nnovod/projects/scalaNative/target/scala-2.11/scalanative-out -L/Applications/Xcode。app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib -lgc /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/__const.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/__dispatch.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/__empty.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11//Users/nnovod/projects/scalaNative/target/scala-2.11/ll/__instance.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/__main.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/example.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/java.io.ll.o /User/nnovod/projects/ScalaNative.otarget/scala-2.11/ll/java.lang.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/java.lang.reflect.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/java.nio.charset.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/java.nio.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/java./Users/nnovod/projects/scalaNative/target/scala-2.11/ll/niocharset.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.collection.generic.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.collection.immutable.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.collection.ll.o /User/nnovod/projects/ScalaNative.otarget/scala-2.11/ll/scala.collection.mutable.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.collection.script.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.compat.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.io.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala./Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.math.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.reflect.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.runtime.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.scalanative.native.ll.o /User/nnovod/projects/ScalaNative塔吉特/scala-2.11/ll/scala.scalanative.runtime.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.util.control.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.util.hashing.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/ll/scala.util.ll.o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/dyndispatch.c.o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/eh.cpp.o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/gc.c.o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/posix.c.o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/time.c.o /Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/unwind./Users/nnovod/projects/scalaNative/target/scala-2.11/nativelib/wrap.c.o -lc++ -lSystem /Users/nnovod/tools/clang+llvm-4.0.0-x86_64-apple-darwin/bin/../lib/clang/4.0.0/lib/darwin/libclang_rt.ios.a

我是不是搞错了？我不是sbt专家，但我需要对scala本机sbt代码进行重大修改吗？

谢谢。

Answer 1

从LLVM IR的角度来看，这应该是可能的，而且几乎是被支持的(考虑到通过调试平滑粗糙的边缘是小白鼠)。但是，从您可以从Scala原住民调用的苹果框架的角度来看，您将无法从Scala原住民获得这些苹果框架，这意味着有效的答案是很难“不”使用Scala原住民在其当前的生态系统中作为在iPhone、iPad、Apple、Apple或Mac上编写iOS/iPadOS/MacOS应用程序的方式。