// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

import (
	"strings"

	"issue20014.dir/a"
)

func main() {
	samePackage()
	crossPackage()
	// Print fields registered with field tracking.
	for _, line := range strings.Split(fieldTrackInfo, "\n") {
		if line == "" {
			continue
		}
		println(strings.Split(line, "\t")[0])
	}
}

type T struct {
	X int `go:"track"`
	Y int `go:"track"`
	Z int // untracked
}

func (t *T) GetX() int {
	return t.X
}
func (t *T) GetY() int {
	return t.Y
}
func (t *T) GetZ() int {
	return t.Z
}

func samePackage() {
	var t T
	println(t.GetX())
	println(t.GetZ())
}

func crossPackage() {
	var t a.T
	println(t.GetX())
	println(t.GetZ())
}

// This global variable is set by the linker using the -k option.
var fieldTrackInfo string