if event == model.EventDelete {
		esc.deleteEndpointSlice(ep)
	} else {
		esc.updateEndpointSlice(ep)
	}
	hostnames := esc.c.hostNamesForNamespacedName(namespacedName)
	// Trigger EDS push for all hostnames.
	esc.pushEDS(hostnames, namespacedName.Namespace)

	name := serviceNameForEndpointSlice(esLabels)
	namespace := ep.GetNamespace()
	svc := esc.c.services.Get(name, namespace)

		{"foo\xed\xa0\x80bar", "foo\xed\xa0\x80bar"},
	}

	for _, test := range tests {
		esc := jsStrEscaper(test.x)
		if esc != test.esc {
			t.Errorf("%q: want %q got %q", test.x, test.esc, esc)
		}
	}
}

func TestJSRegexpEscaper(t *testing.T) {
	tests := []struct {
		x   any
		esc string
	}{
		{"", `(?:)`},
		{"foo", `foo`},
		{"\u0000", `\u0000`},
		{"\t", `\t`},

		8, 0, 1, '.', Debug,
		"",
		"",
	},

	{
		"1b esc stripped",
		8, 0, 1, '.', StripEscape,
		"\xff\xff",
		"",
	},

	{
		"1b esc",
		8, 0, 1, '.', 0,
		"\xff\xff",
		"\xff\xff",
	},

	{
		"1c esc stripped",
		8, 0, 1, '.', StripEscape,
		"\xff\t\xff",
		"\t",
	},

	{
		"1c esc",
		8, 0, 1, '.', 0,
		"\xff\t\xff",
		"\xff\t\xff",
	},

	var esc []byte
	last := 0
	for i := 0; i < len(s); {
		r, width := utf8.DecodeRune(s[i:])
		i += width
		switch r {
		case '"':
			esc = escQuot
		case '\'':
			esc = escApos
		case '&':
			esc = escAmp
		case '<':
			esc = escLT
		case '>':
			esc = escGT
		case '\t':
			esc = escTab
		case '\n':
			if !escapeNewline {

		lastCmd := p.Cmds[pipelineLen-1]
		if idNode, ok := lastCmd.Args[0].(*parse.IdentifierNode); ok {
			if esc := idNode.Ident; predefinedEscapers[esc] {
				// Pipeline ends with a predefined escaper.
				if len(p.Cmds) == 1 && len(lastCmd.Args) > 1 {
					// Special case: pipeline is of the form {{ esc arg1 arg2 ... argN }},
					// where esc is the predefined escaper, and arg1...argN are its arguments.
					// Convert this into the equivalent form

		xe.SetBounded(true)
		value = xe
	case n.Op() == ir.ONAME && n.(*ir.Name).Class == ir.PEXTERN && n.(*ir.Name).Readonly():
		// n is a readonly global; use it directly.
		value = n
	case conv.Esc() == ir.EscNone && fromType.Size() <= 1024:
		// n does not escape. Use a stack temporary initialized to n.
		value = typecheck.TempAt(base.Pos, ir.CurFunc, fromType)

		}
		a = initStackTemp(init, x, vstat)
	} else if n.Esc() == ir.EscNone {
		a = initStackTemp(init, typecheck.TempAt(base.Pos, ir.CurFunc, t), vstat)
	} else {
		a = ir.NewUnaryExpr(base.Pos, ir.ONEW, ir.TypeNode(t))
	}
	appendWalkStmt(init, ir.NewAssignStmt(base.Pos, vauto, a))

	if vstat != nil && n.Prealloc == nil && n.Esc() != ir.EscNone {
		// If we allocated on the heap with ONEW, copy the static to the

// walkMakeMap walks an OMAKEMAP node.
func walkMakeMap(n *ir.MakeExpr, init *ir.Nodes) ir.Node {
	t := n.Type()
	hmapType := reflectdata.MapType()
	hint := n.Len

	// var h *hmap
	var h ir.Node
	if n.Esc() == ir.EscNone {
		// Allocate hmap on stack.

		// var hv hmap
		// h = &hv
		h = stackTempAddr(init, hmapType)

		// Allocate one bucket pointed to by hmap.buckets on stack if hint

// nameSpace is the data structure shared by all templates in an association.
type nameSpace struct {
	mu      sync.Mutex
	set     map[string]*Template
	escaped bool
	esc     escaper
}

// Templates returns a slice of the templates associated with t, including t
// itself.
func (t *Template) Templates() []*Template {
	ns := t.nameSpace
	ns.mu.Lock()
	defer ns.mu.Unlock()

		// Useful to see where Defn is set and what node it points to
		fmt.Fprintf(w, " outer(%p)", n.Name().Outer)
	}

	if EscFmt != nil {
		if esc := EscFmt(n); esc != "" {
			fmt.Fprintf(w, " %s", esc)
		}
	}

	if n.Sym() != nil && n.Op() != ONAME && n.Op() != ONONAME && n.Op() != OTYPE {
		fmt.Fprintf(w, " %+v", n.Sym())
	}