_ = x[_Lparen-11]
	_ = x[_Lbrack-12]
	_ = x[_Lbrace-13]
	_ = x[_Rparen-14]
	_ = x[_Rbrack-15]
	_ = x[_Rbrace-16]
	_ = x[_Comma-17]
	_ = x[_Semi-18]
	_ = x[_Colon-19]
	_ = x[_Dot-20]
	_ = x[_DotDotDot-21]
	_ = x[_Break-22]
	_ = x[_Case-23]
	_ = x[_Chan-24]
	_ = x[_Const-25]
	_ = x[_Continue-26]
	_ = x[_Default-27]
	_ = x[_Defer-28]
	_ = x[_Else-29]
	_ = x[_Fallthrough-30]
	_ = x[_For-31]

	// delimiters
	_Lparen    // (
	_Lbrack    // [
	_Lbrace    // {
	_Rparen    // )
	_Rbrack    // ]
	_Rbrace    // }
	_Comma     // ,
	_Semi      // ;
	_Colon     // :
	_Dot       // .
	_DotDotDot // ...

	// keywords
	_Break       // break
	_Case        // case
	_Chan        // chan
	_Const       // const
	_Continue    // continue
	_Default     // default
	_Defer       // defer

	case *ListExpr:
		p.printExprList(n.ElemList)

	case *ArrayType:
		var len interface{} = _DotDotDot
		if n.Len != nil {
			len = n.Len
		}
		p.print(_Lbrack, len, _Rbrack, n.Elem)

	case *SliceType:
		p.print(_Lbrack, _Rbrack, n.Elem)

	case *DotsType:
		p.print(_DotDotDot, n.Elem)

	case *StructType:
		p.print(_Struct)
		if len(n.FieldList) > 0 && p.linebreaks {

		t.Elem = p.chanElem()
		return t

	case _Func:
		// fntype
		p.next()
		_, t := p.funcType("function type")
		return t

	case _Lbrack:
		// '[' oexpr ']' ntype
		// '[' _DotDotDot ']' ntype
		p.next()
		if p.got(_Rbrack) {
			return p.sliceType(pos)
		}
		return p.arrayType(pos, nil)

	case _Chan:
		// _Chan non_recvchantype
		// _Chan _Comm ntype
		p.next()

// back to the slice being appended to, and returns nil.
// inplace MUST be set to false if the slice can be SSA'd.
// Note: this code only handles fixed-count appends. Dotdotdot appends
// have already been rewritten at this point (by walk).
func (s *state) append(n *ir.CallExpr, inplace bool) *ssa.Value {
	// If inplace is false, process as expression "append(s, e1, e2, e3)":
	//

		}
		s.tok = _Colon

	case '.':
		s.nextch()
		if isDecimal(s.ch) {
			s.number(true)
			break
		}
		if s.ch == '.' {
			s.nextch()
			if s.ch == '.' {
				s.nextch()
				s.tok = _DotDotDot
				break
			}
			s.rewind() // now s.ch holds 1st '.'
			s.nextch() // consume 1st '.' again
		}
		s.tok = _Dot

	case '+':
		s.nextch()
		s.op, s.prec = Add, precAdd
		if s.ch != '+' {

	{_Lbrace, "{", 0, 0},
	{_Rparen, ")", 0, 0},
	{_Rbrack, "]", 0, 0},
	{_Rbrace, "}", 0, 0},
	{_Comma, ",", 0, 0},
	{_Semi, ";", 0, 0},
	{_Colon, ":", 0, 0},
	{_Dot, ".", 0, 0},
	{_DotDotDot, "...", 0, 0},

	// keywords
	{_Break, "break", 0, 0},
	{_Case, "case", 0, 0},
	{_Chan, "chan", 0, 0},
	{_Const, "const", 0, 0},
	{_Continue, "continue", 0, 0},
	{_Default, "default", 0, 0},