garble/testdata/script/position.txtar

exec garble build
exec ./main
! stdout 'garble_main\.go|garble_other_filename|is sorted'

! binsubstr main$exe 'garble_main.go' 'garble_other_filename'

[short] stop # no need to verify this with -short

go build
exec ./main
stdout 'garble_main.go'
stdout 'garble_other_filename'
stdout ':19: main'
stdout 'initPositions is sorted'
stdout 'varPositions is sorted'
-- go.mod --
module test/main

go 1.22
-- garble_main.go --
package main

import (
	"fmt"
	"runtime"
	"sort"
)

var _, globalFile, globalLine, _ = runtime.Caller(0)

func init() {
	_, file, line, _ := runtime.Caller(0)
	fmt.Printf("%s:%d: init\n", file, line)
}

func main() {
	fmt.Printf("%s:%d: global\n", globalFile, globalLine)

	_, file, line, _ := runtime.Caller(0)
	fmt.Printf("%s:%d: main\n", file, line)

	funcDecl()
	funcVar()

	// initPositions is filled by ten consecutive funcs.
	// If we are not shuffling or obfuscating line numbers,
	// this list will be sorted.
	// If we are, it's extremely unlikely it would remain sorted.
	if sort.IsSorted(sort.StringSlice(initPositions)) {
		fmt.Println("initPositions is sorted")
	}

	// Same as the above, but with vars.
	if sort.IsSorted(sort.StringSlice(varPositions)) {
		fmt.Println("varPositions is sorted")
	}

	// Adding "/*text*/" comments here is tricky,
	// as we don't want to turn "a/b" into "a//*text*/b".
	// We need "a/ /*text*/b" to preserve the syntax.
	// The nested expression is needed to prevent spaces.
	fmt.Printf("%v\n", 10*float64(3.0)/float64(4.0))
}

// Replacing `s` and `f` with obfuscated names triggered a bug in go/printer,
// where it would move `.f` after the comment, breaking the syntax.
func issue_573(s struct{ f int }) {
	var _ *int = &s.f
	/*x*/
}
-- garble_other_filename.go --
package main

import (
	"fmt"
	"runtime"
)

func funcDecl() {
	_, file, line, _ := runtime.Caller(0)
	fmt.Printf("%s:%d: func\n", file, line)
}

var funcVar = func() {
	_, file, line, _ := runtime.Caller(0)
	fmt.Printf("%s:%d: func var\n", file, line)
}

var initPositions []string

func curPos() string {
	_, file, line, _ := runtime.Caller(1)
	return fmt.Sprintf("%s:%d", file, line)
}

func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }
func init() { initPositions = append(initPositions, curPos()) }

var varLine0 = curPos()
var varLine1 = curPos()
var varLine2 = curPos()
var varLine3 = curPos()
var varLine4 = curPos()
var varLine5 = curPos()
var varLine6 = curPos()
var varLine7 = curPos()
var varLine8 = curPos()
var varLine9 = curPos()

var varPositions = []string{
	varLine0, varLine1, varLine2, varLine3, varLine4,
	varLine5, varLine6, varLine7, varLine8, varLine9,
}