Issue generating code using similar stdlib package path

[myshkin5]

Hi,

This might be a weird corner case or I might be missing something. I'm trying to generate code that uses types from stdlib that is also in a package with the same suffix as the code from the stdlib (example.com/dstissue/go/types using go/types in the example code below. What gets returned doesn't import the stdlib package and just assumes the types are in the output package.

Is there some feature that I'm missing that would facilitate this (import aliases?)? Can my example be tweaked to produce the expected results?

Here's my main.go in the example.com/dstissue module:

package main

import (
	"go/token"

	"github.com/dave/dst"
	"github.com/dave/dst/decorator"
	"github.com/dave/dst/decorator/resolver/goast"
	"github.com/dave/dst/decorator/resolver/gopackages"
)

func main() {
	src := "package types"
	fSet := token.NewFileSet()
	file, err := decorator.NewDecoratorWithImports(
		fSet, "example.com/dstissue/go/types", goast.New()).Parse(src)
	if err != nil {
		panic(err)
	}

	file.Decls = []dst.Decl{
		&dst.GenDecl{
			Tok: token.TYPE,
			Specs: []dst.Spec{&dst.TypeSpec{
				Name: dst.NewIdent("myFunc"),
				Type: &dst.FuncType{
					Results: &dst.FieldList{List: []*dst.Field{
						{Type: &dst.Ident{Name: "Object", Path: "go/types"}},
					}},
				},
			}},
		},
	}

	restorer := decorator.NewRestorerWithImports("go/types", gopackages.New("go/types"))
	if err = restorer.Print(file); err != nil {
		panic(err)
	}
}

And here's the output:

package types

type myFunc func() Object

I think this is what I want:

package types

import types2 "go/types"

type myFunc func() types2.Object

Thanks in advance!

[myshkin5]

Read the readme (minutes after posting) and did find the alias function. Changed the last few lines to this but got the same results:

	fr := restorer.FileRestorer()
	fr.Alias["types"] = "types2"
	if err = fr.Print(file); err != nil {
		panic(err)
	}

[myshkin5]

This is an x/tools issue:
golang/go#45584

I changed how I'm creating the restorer to specify the proper output package:

	restorer := decorator.NewRestorerWithImports(
		"example.com/dstissue/go/types",
		gopackages.New("go/types"))

That results in the following error:

Unexpected package creation during export data loading

Then updating to golang.org/x/tools v0.1.12 gave me the expected results (with no alias!):

package types

import "go/types"

type myFunc func() types.Object