Xamarin对象Sharpie Obj-C库绑定为什么输出大文件?

时间:2017-12-08 08:55:36

标签: c# xamarin xamarin.ios objective-sharpie xamarin.ios-binding

我现在试图绑定Google Maps iOS工具的热图部分。

https://github.com/googlemaps/google-maps-ios-utils

1:.a file Create

2:CreateMakefile&执行make命令

XBUILD=/Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild
PROJECT_ROOT=./GoogleMapiOSHeatmapUtility
PROJECT=./GoogleMapiOSHeatmapUtility.xcodeproj
TARGET=GoogleMapiOSHeatmapUtility

all: lib$(TARGET).a

lib$(TARGET)-i386.a:
        $(XBUILD) -project $(PROJECT) -target $(TARGET) -sdk iphonesimulator -configuration Release clean build
        -mv ./build/Release-iphonesimulator/lib$(TARGET).a $@

lib$(TARGET)-armv7.a:
        $(XBUILD) -project $(PROJECT) -target $(TARGET) -sdk iphoneos -arch armv7 -configuration Release clean build
        -mv ./build/Release-iphoneos/lib$(TARGET).a $@

lib$(TARGET)-arm64.a:
        $(XBUILD) -project $(PROJECT) -target $(TARGET) -sdk iphoneos -arch arm64 -configuration Release clean build
        -mv ./build/Release-iphoneos/lib$(TARGET).a $@

lib$(TARGET).a: lib$(TARGET)-i386.a lib$(TARGET)-armv7.a lib$(TARGET)-arm64.a
        xcrun -sdk iphoneos lipo -create -output $@ $^

clean:
        -rm -f *.a *.dll

3:add 「.a」File BindingProject

4:创建ApiDefinitions& StructsAndEnums文件

执行命令

sharpie bind --output=GoogleMapiOSHeatmapUtility --namespace=GoogleMapiOSHeatmapUtility --sdk=iphoneos11.1  ./GoogleMapiOSHeatmapUtility/*.h

结果

Parsing 14 header files...
In file included from /var/folders/kv/_n7jh8kd1cbd0sl1jy75k_cm0000gn/T/tmpcc4d148.h:6:
/Users/xxxxxxxx/Documents/repository/GoogleMapiOSHeatmapUtility/GoogleMapiOSHeatmapUtility/GMUHeatmapTileLayer.h:45:1: warning: no 'assign', 'retain', or 'copy' attribute is specified - 'assign' is assumed
      [-Wobjc-property-no-attribute]
@property(nonatomic) GMUGradient *gradient;
^
/Users/xxxxxxxxxxx/Documents/repository/GoogleMapiOSHeatmapUtility/GoogleMapiOSHeatmapUtility/GMUHeatmapTileLayer.h:45:1: warning: default property attribute 'assign' not appropriate for non-GC object
      [-Wobjc-property-no-attribute]

Binding...
  [write] ApiDefinitions.cs
  [write] StructsAndEnums.cs

Binding Analysis:
  Automated binding is complete, but there are a few APIs which have been flagged with [Verify] attributes. While the entire binding should be audited for best API design practices, look more closely at APIs
  with the following Verify attribute hints:

  ConstantsInterfaceAssociation (205 instances):
    There's no foolproof way to determine with which Objective-C interface an extern variable declaration may be associated. Instances of these are bound as [Field] properties in a partial interface into a
    nearby concrete interface to produce a more intuitive API, possibly eliminating the 'Constants' interface altogether.

  MethodToProperty (201 instances):
    An Objective-C method was bound as a C# property due to convention such as taking no parameters and returning a value (non-void return). Often methods like these should be bound as properties to surface a
    nicer API, but sometimes false-positives can occur and the binding should actually be a method.

  StronglyTypedNSArray (45 instances):
    A native NSArray* was bound as NSObject[]. It might be possible to more strongly type the array in the binding based on expectations set through API documentation (e.g. comments in the header file) or by
    examining the array contents through testing. For example, an NSArray* containing only NSNumber* instances can be bound as NSNumber[] instead of NSObject[].

  PlatformInvoke (3177 instances):
    In general P/Invoke bindings are not as correct or complete as Objective-C bindings (at least currently). You may need to fix up the library name (it defaults to '__Internal') and return/parameter types
    manually to conform to C calling conventionsfor the target platform. You may find you don't even want to expose the C API in your binding, but if you do, you'll probably also want to relocate the
    definition to a more appropriate class and expose a stronger type-safe wrapper. For P/Invoke guidance, see http://www.mono-project.com/docs/advanced/pinvoke/.

  InferredFromMemberPrefix (30 instances):
    The name of this originally anonymous declaration was taken from a common prefix of its members.

  Once you have verified a Verify attribute, you should remove it from the binding source code. The presence of Verify attributes intentionally cause build failures.

  For more information about the Verify attribute hints above, consult the Objective Sharpie documentation by running 'sharpie docs' or visiting the following URL:

    http://xmn.io/sharpie-docs
2 warnings generated.

Done.

执行sharpie bind命令后,会生成ApiDefinitions.cs和StructsAndEnums.cs,但这两个文件的代码都超过20,000行,并且发生了超过3000个错误

为什么在使用14个头文件时会创建一个巨大的文件,而且没有一个满足100行?

我刚刚开始Xamarin,我在这里苦苦挣扎 有必要绝对使用热图的原因。

请帮帮我

1 个答案:

答案 0 :(得分:0)

  

为什么在使用14个头文件时会创建一个巨大的文件,而且没有一个满足100行?

似乎这个问题伴随着最新的Sharpie(之前我制作了绑定库并且工作正常)。

只有部分大文件有用(在文件的末尾),你可以删除无用的代码。

此外,如果此项目已在其中注册,我建议您通过CocoaPods创建它。