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cmd/gomobile: add modulemaps to framework bundles for simpler imports

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Modulemaps allow users to use the import directives without
providing the specific header file but by using a module name
in Objective-C and Swift.

  gomobile bind -target=ios golang.org/x/mobile/example/bind/hello

Add the generated framework to an Xcode project. You will be able
to import the library header and use the library by importing hello
in Swift.

  import hello
  // ...
  hello.GoHelloGreetings("burcu");

In Objective-C, you will be able to import with the module name
similarly by using the import directive below.

  #import hello

This CL also enables Go bindings to be used from Swift without an
Objective-C bridging header.

Fixes golang/go#12422

Change-Id: I7c60349caad100861d0b642ddfa873d7ada47598
Reviewed-on: https://go-review.googlesource.com/15044
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
This commit is contained in:
Burcu Dogan 2015-09-27 13:34:13 -07:00
parent c846a131a8
commit 8cf29b651f
1 changed files with 23 additions and 1 deletions
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24
cmd/gomobile/bind_iosapp.go
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@ -93,7 +93,24 @@ func goIOSBind(pkg *build.Package) error {
if err := symlink("Versions/Current/Resources", buildO+"/Resources"); err != nil {
return err
}
return ioutil.WriteFile(buildO+"/Resources/Info.plist", []byte(iosBindInfoPlist), 0666)
if err := ioutil.WriteFile(buildO+"/Resources/Info.plist", []byte(iosBindInfoPlist), 0666); err != nil {
return err
}
var mmVals = struct {
Module string
Header string
}{
Module: name,
Header: strings.Title(name) + ".h",
}
err = writeFile(buildO+"/Versions/A/Modules/module.modulemap", func(w io.Writer) error {
return iosModuleMapTmpl.Execute(w, mmVals)
})
if err != nil {
return err
}
return symlink("Versions/Current/Modules", buildO+"/Modules")
}
const iosBindInfoPlist = `<?xml version="1.0" encoding="UTF-8"?>
@ -104,6 +121,11 @@ const iosBindInfoPlist = `<?xml version="1.0" encoding="UTF-8"?>
</plist>
`
var iosModuleMapTmpl = template.Must(template.New("iosmmap").Parse(`framework module "{{.Module}}" {
header "{{.Header}}"
export *
}`))
func goIOSBindArchive(name, path string, env []string) (string, error) {
arch := getenv(env, "GOARCH")
archive := filepath.Join(tmpdir, name+"-"+arch+".a")