//go:nosplit
//go:nocheckptr
func NoEscape(p unsafe.Pointer) unsafe.Pointer {
	x := uintptr(p)
	return unsafe.Pointer(x ^ 0)
}

var alwaysFalse bool
var escapeSink any

// Escape forces any pointers in x to escape to the heap.
func Escape[T any](x T) T {
	if alwaysFalse {
		escapeSink = x
	}
	return x

// it is distinct enough that a developer can find the source of the problem
// via a search engine.
const filterFailsafe = "ZgotmplZ"

// escape escapes a template node.
func (e *escaper) escape(c context, n parse.Node) context {
	switch n := n.(type) {
	case *parse.ActionNode:
		return e.escapeAction(c, n)
	case *parse.BreakNode:
		c.n = n

	_, p = out_escapes_2(17)
	_, q = out_escapes_2(18)
	chk(p, q, 17, "out_escapes_2")

	x := defer1(20)
	if x != 20 {
		println("defer failed", x)
		bad = true
	}

	if bad {
		panic("BUG: no escape")
	}

Russ Cox <******@****.***> 1648988431 -0400

David P. Baker <******@****.***> 1641482883 -0800

	myprint(nil, 1, 2, 3) // ERROR "1 does not escape" "2 does not escape" "3 does not escape" "... argument does not escape$"
}

func foo76c() {
	myprint1(nil, 1, 2, 3) // ERROR "1 does not escape" "2 does not escape" "3 does not escape" "... argument does not escape$"
}

func foo76d() {
	defer myprint(nil, 1, 2, 3) // ERROR "1 does not escape" "2 does not escape" "3 does not escape" "... argument does not escape$"
}

func foo76e() {

	go f()
	go f(new(int))           // ERROR "... argument does not escape$" "new\(int\) does not escape$"
	go f(new(int), new(int)) // ERROR "... argument does not escape$" "new\(int\) does not escape$"

	go f(nil...)
	go f([]*int{}...)                   // ERROR "\[\]\*int{} does not escape$"
	go f([]*int{new(int)}...)           // ERROR "\[\]\*int{...} does not escape$" "new\(int\) does not escape$"

func slice4(s []*int) { // ERROR "s does not escape"
	i := 0 // ERROR "moved to heap: i"
	s[0] = &i
}

func slice5(s []*int) { // ERROR "s does not escape"
	if s != nil {
		s = make([]*int, 10) // ERROR "make\(\[\]\*int, 10\) does not escape"
	}
	i := 0 // ERROR "moved to heap: i"
	s[0] = &i
}

func slice6() {
	s := make([]*int, 10) // ERROR "make\(\[\]\*int, 10\) does not escape"
	// BAD: i should not escape

// Test escape analysis for closure arguments.

package escape

var sink interface{}

func ClosureCallArgs0() {
	x := 0
	func(p *int) { // ERROR "p does not escape" "func literal does not escape"
		*p = 1
	}(&x)
}

func ClosureCallArgs1() {
	x := 0
	for {
		func(p *int) { // ERROR "p does not escape" "func literal does not escape"
			*p = 1
		}(&x)
	}
}

	b := bytes.NewBuffer(make([]byte, 0, 64)) // ERROR "&bytes.Buffer{...} does not escape$" "make\(\[\]byte, 0, 64\) does not escape$" "inlining call to bytes.NewBuffer$"
	for _, x := range xs {
		b.WriteString(x)
	}
	return b.Len() // ERROR "inlining call to bytes.\(\*Buffer\).Len$"
}

func bufferNoEscape3(xs []string) string { // ERROR "xs does not escape$"