return p.parseLiteralValue(nil)
	}

	x := p.parseExpr(keyOk) // don't resolve if map key
	if keyOk {
		if p.tok == token.COLON {
			colon := p.pos
			p.next()
			return &ast.KeyValueExpr{x, colon, p.parseElement(false)}
		}
		p.resolve(x) // not a map key
	}

	return x
}

func (p *parser) parseElementList() (list []ast.Expr) {
	if p.trace {

	p.xnest++
	p.want(_Lbrace)
	x.Rbrace = p.list("composite literal", _Comma, _Rbrace, func() bool {
		// value
		e := p.bare_complitexpr()
		if p.tok == _Colon {
			// key ':' value
			l := new(KeyValueExpr)
			l.pos = p.pos()
			p.next()
			l.Key = e
			l.Value = p.bare_complitexpr()
			e = l
			x.NKeys++
		}
		x.ElemList = append(x.ElemList, e)
		return false
	})
	p.xnest--

		{"InterfaceType.Interface", Field, 0},
		{"InterfaceType.Methods", Field, 0},
		{"IsExported", Func, 0},
		{"IsGenerated", Func, 21},
		{"KeyValueExpr", Type, 0},
		{"KeyValueExpr.Colon", Field, 0},
		{"KeyValueExpr.Key", Field, 0},
		{"KeyValueExpr.Value", Field, 0},
		{"LabeledStmt", Type, 0},
		{"LabeledStmt.Colon", Field, 0},
		{"LabeledStmt.Label", Field, 0},
		{"LabeledStmt.Stmt", Field, 0},

func (p *parser) parseElement() ast.Expr {
	if p.trace {
		defer un(trace(p, "Element"))
	}

	x := p.parseValue()
	if p.tok == token.COLON {
		colon := p.pos
		p.next()
		x = &ast.KeyValueExpr{Key: x, Colon: colon, Value: p.parseValue()}
	}

	return x
}

func (p *parser) parseElementList() (list []ast.Expr) {
	if p.trace {
		defer un(trace(p, "ElementList"))
	}

pkg go/ast, type InterfaceType struct, Interface token.Pos
pkg go/ast, type InterfaceType struct, Methods *FieldList
pkg go/ast, type KeyValueExpr struct
pkg go/ast, type KeyValueExpr struct, Colon token.Pos
pkg go/ast, type KeyValueExpr struct, Key Expr
pkg go/ast, type KeyValueExpr struct, Value Expr
pkg go/ast, type LabeledStmt struct
pkg go/ast, type LabeledStmt struct, Colon token.Pos