Hi,
I am using plugin package to implement a feature of my project recently,
But some behavior confuses me.
#1 interface
main.go:
type PluginType interface{
GetVersion() string
}
func main() {
plugFile, err := plugin.Open(filepath.Join("plugins", "plugin_sample.so"))
if err != nil {
fmt.Println("Fails to load plugins")
fmt.Println(err)
return
}
plugTarget, err := plugFile.Lookup("PluginTarget")
if err != nil {
fmt.Println("Fails to get target veriable")
fmt.Println(err)
return
}
plug, ok := plugTarget.(PluginType)
if !ok {
fmt.Println("Assert convert fails")
return
}
fmt.Println("plugin version:", plug.GetVersion())
}
if I write plugin_sample.go like this
```
package main
type pluginType struct{}
var PluginTarget *pluginType = &pluginType{}
func (v *pluginType) GetVersion() string {
return "aaaaaaaaaaaa"
}
```
then
go build -buildmode=plugin -o plugins/plugin_sample.so plugin_sample.go
go run main.go
It will print `Assert convert fails`
But If I write like
```
package main
type pluginType struct{}
var PluginTarget pluginType
func (v pluginType) GetVersion() string {
return "aaaaaaaaaaaa"
}
```
It will print `plugin version: aaaaaaaaaaaa` as expected.
Is this a bug of plugin package of golang?
#2 I notice buildmode=plugin only support Linux, is there any plan to
support Macos in the feture? I am using go1.12.
Thanks
Teng
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