}

// VariableNode holds a list of variable names, possibly with chained field
// accesses. The dollar sign is part of the (first) name.
type VariableNode struct {
	NodeType
	Pos
	tr    *Tree
	Ident []string // Variable name and fields in lexical order.
}

func (t *Tree) newVariable(pos Pos, ident string) *VariableNode {

	case *parse.PipeNode:
		// Parenthesized pipeline. The arguments are all inside the pipeline; final must be absent.
		s.notAFunction(cmd.Args, final)
		return s.evalPipeline(dot, n)
	case *parse.VariableNode:
		return s.evalVariableNode(dot, n, cmd.Args, final)
	}
	s.at(firstWord)
	s.notAFunction(cmd.Args, final)
	switch word := firstWord.(type) {
	case *parse.BoolNode:
		return reflect.ValueOf(word.True)

		if err != nil {
			b.Fatal(err)
		}
	}
}

var sinkv, sinkl string

func BenchmarkVariableString(b *testing.B) {
	v := &VariableNode{
		Ident: []string{"$", "A", "BB", "CCC", "THIS_IS_THE_VARIABLE_BEING_PROCESSED"},
	}
	b.ResetTimer()
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		sinkv = v.String()
	}
	if sinkv == "" {

		{"Tree", Type, 0},
		{"Tree.Mode", Field, 16},
		{"Tree.Name", Field, 0},
		{"Tree.ParseName", Field, 1},
		{"Tree.Root", Field, 0},
		{"VariableNode", Type, 0},
		{"VariableNode.Ident", Field, 0},
		{"VariableNode.NodeType", Field, 0},
		{"VariableNode.Pos", Field, 1},
		{"WithNode", Type, 0},
		{"WithNode.BranchNode", Field, 0},
	},
	"time": {
		{"(*Location).String", Method, 0},

pkg text/template/parse, type Tree struct, Name string
pkg text/template/parse, type Tree struct, Root *ListNode
pkg text/template/parse, type VariableNode struct
pkg text/template/parse, type VariableNode struct, Ident []string
pkg text/template/parse, type VariableNode struct, embedded NodeType
pkg text/template/parse, type WithNode struct
pkg text/template/parse, type WithNode struct, embedded BranchNode

pkg text/template/parse, method (StringNode) Position() Pos
pkg text/template/parse, method (TemplateNode) Position() Pos
pkg text/template/parse, method (TextNode) Position() Pos
pkg text/template/parse, method (VariableNode) Position() Pos
pkg text/template/parse, method (WithNode) Position() Pos
pkg text/template/parse, type ActionNode struct, embedded Pos
pkg text/template/parse, type BoolNode struct, embedded Pos