As multiple As annotations are supported, it would make sense to support multiple ResultTag annotations.
Currently this code fails with cannot apply more than one line of ResultTags
func main() {
app := fx.New(
fx.Provide(
fx.Annotate(
func() *bytes.Buffer {
return bytes.NewBuffer([]byte("Hello!"))
},
fx.ResultTags(`name:"a"`),
fx.ResultTags(`name:"b"`),
),
),
fx.Invoke(
fx.Annotate(
func(a, b *bytes.Buffer) {
fmt.Println(a.String())
fmt.Println(b.String())
},
fx.ParamTags(
`name:"a"`,
`name:"b"`,
),
),
),
)
app.Run()
}A work-around is possible by providing multiple copies of the same instance of a type, however it is less intuitive.
fx.Provide(
fx.Annotate(
func() (*bytes.Buffer, *bytes.Buffer) {
a := bytes.NewBuffer([]byte("Hello!"))
b := a
return a, b
},
fx.ResultTags(`name:"a"`, `name:"b"`),
),
)Is this a breaking change?
It should not be a breaking change as nothing (sans tests) should rely on app failure for multiple result tag annotations.
As multiple
Asannotations are supported, it would make sense to support multiple ResultTag annotations.Currently this code fails with
cannot apply more than one line of ResultTagsA work-around is possible by providing multiple copies of the same instance of a type, however it is less intuitive.
Is this a breaking change?
It should not be a breaking change as nothing (sans tests) should rely on app failure for multiple result tag annotations.