// attribute for the last argument into account.

package p

func fun(x []int) {}

func g(x []int) {
	fun(x) // -r='fun(x...)->Fun(x)' should not rewrite this
	Fun(x) // -r='fun(x...)->Fun(x)' should rewrite this to Fun(x)

// expressions without those nodes must also eliminate the associated
// comments.

package p

func f(x int) int {
	_ = x + x // this comment remains in the rewrite
	_ = x /* this comment must not be in the rewrite */ + x
	return x /* this comment must not be in the rewrite */ + x

// license that can be found in the LICENSE file.

package main

// Field tags are *ast.BasicLit nodes that are nil when the tag is
// absent. These nil nodes must not be mistaken for expressions,
// the rewriter should not try to dereference them. Was issue 2410.
type Foo struct {
	Field int

)

func initRewrite() {
	if *rewriteRule == "" {
		rewrite = nil // disable any previous rewrite
		return
	}
	f := strings.Split(*rewriteRule, "->")
	if len(f) != 2 {
		fmt.Fprintf(os.Stderr, "rewrite rule must be of the form 'pattern -> replacement'\n")
		os.Exit(2)
	}
	pattern := parseExpr(f[0], "pattern")
	replace := parseExpr(f[1], "replacement")
	rewrite = func(fset *token.FileSet, p *ast.File) *ast.File {

// attribute for the last argument into account.

package p

func fun(x []int) {}

func g(x []int) {
	Fun(x)    // -r='fun(x)->Fun(x)' should rewrite this to Fun(x)
	fun(x...) // -r='fun(x)->Fun(x)' should not rewrite this

// attribute for the last argument into account.

package p

func fun(x []int) {}

func g(x []int) {
	fun(x)    // -r='fun(x)->Fun(x)' should rewrite this to Fun(x)
	fun(x...) // -r='fun(x)->Fun(x)' should not rewrite this

// license that can be found in the LICENSE file.

package main

// Field tags are *ast.BasicLit nodes that are nil when the tag is
// absent. These nil nodes must not be mistaken for expressions,
// the rewriter should not try to dereference them. Was issue 2410.
type Foo struct {
	Field int

// license that can be found in the LICENSE file.

package p

// Slices have nil Len values in the corresponding ast.ArrayType
// node and reflect.NewValue(slice.Len) is an invalid reflect.Value.
// The rewriter must not crash in that case. Was issue 1696.

// license that can be found in the LICENSE file.

package p

// Slices have nil Len values in the corresponding ast.ArrayType
// node and reflect.NewValue(slice.Len) is an invalid reflect.Value.
// The rewriter must not crash in that case. Was issue 1696.

// expressions without those nodes must also eliminate the associated
// comments.

package p

func f(x int) int {
	_ = 2 * x // this comment remains in the rewrite
	_ = 2 * x
	return 2 * x