if len(n.Lhs) == 2 && len(n.Rhs) == 1 {
			f.walk(n.Rhs, ctxAssign2, visit)
		} else {
			f.walk(n.Rhs, ctxExpr, visit)
		}
	case *ast.GoStmt:
		f.walk(n.Call, ctxExpr, visit)
	case *ast.DeferStmt:
		f.walk(n.Call, ctxDefer, visit)
	case *ast.ReturnStmt:
		f.walk(n.Results, ctxExpr, visit)
	case *ast.BranchStmt:
	case *ast.BlockStmt:
		f.walk(n.List, context, visit)
	case *ast.IfStmt:

	case *ast.IncDecStmt:
		a.apply(n, "X", nil, n.X)

	case *ast.AssignStmt:
		a.applyList(n, "Lhs")
		a.applyList(n, "Rhs")

	case *ast.GoStmt:
		a.apply(n, "Call", nil, n.Call)

	case *ast.DeferStmt:
		a.apply(n, "Call", nil, n.Call)

	case *ast.ReturnStmt:
		a.applyList(n, "Results")

	case *ast.BranchStmt:
		a.apply(n, "Label", nil, n.Label)

	case *ast.BlockStmt:
		a.applyList(n, "List")

	case *ast.AssignStmt:
		walkBeforeAfter(&n.Lhs, before, after)
		walkBeforeAfter(&n.Rhs, before, after)
	case *ast.GoStmt:
		walkBeforeAfter(&n.Call, before, after)
	case *ast.DeferStmt:
		walkBeforeAfter(&n.Call, before, after)
	case *ast.ReturnStmt:
		walkBeforeAfter(&n.Results, before, after)
	case *ast.BranchStmt:
	case *ast.BlockStmt:
		walkBeforeAfter(&n.List, before, after)

}

func (p *parser) parseDeferStmt() ast.Stmt {
	if p.trace {
		defer un(trace(p, "DeferStmt"))
	}

	pos := p.expect(token.DEFER)
	call := p.parseCallExpr()
	p.expectSemi()
	if call == nil {
		return &ast.BadStmt{pos, pos + 5} // len("defer")
	}

	return &ast.DeferStmt{pos, call}
}

func (p *parser) parseReturnStmt() *ast.ReturnStmt {
	if p.trace {

	{name: "defer", format: "package main; func main() { «defer func() { «» }()» }", parseMultiplier: 2, scope: true},                // Parser nodes: DeferStmt, FuncLit
	{name: "select", format: "package main; func main() { «select { default: «» }» }", scope: true},
}

// split splits pre«mid»post into pre, mid, post.

			if x.mode == invalid {
				return
			}
			check.assignVar(s.Lhs[0], nil, &x, "assignment")
		}

	case *ast.GoStmt:
		check.suspendedCall("go", s.Call)

	case *ast.DeferStmt:
		check.suspendedCall("defer", s.Call)

	case *ast.ReturnStmt:
		res := check.sig.results
		// Return with implicit results allowed for function with named results.
		// (If one is named, all are named.)

}

func (p *parser) parseDeferStmt() ast.Stmt {
	if p.trace {
		defer un(trace(p, "DeferStmt"))
	}

	pos := p.expect(token.DEFER)
	call := p.parseCallExpr("defer")
	p.expectSemi()
	if call == nil {
		return &ast.BadStmt{From: pos, To: pos + 5} // len("defer")
	}

	return &ast.DeferStmt{Defer: pos, Call: call}
}

func (p *parser) parseReturnStmt() *ast.ReturnStmt {
	if p.trace {

		p.setPos(s.TokPos)
		p.print(s.Tok, blank)
		p.exprList(s.TokPos, s.Rhs, depth, 0, token.NoPos, false)

	case *ast.GoStmt:
		p.print(token.GO, blank)
		p.expr(s.Call)

	case *ast.DeferStmt:
		p.print(token.DEFER, blank)
		p.expr(s.Call)

	case *ast.ReturnStmt:
		p.print(token.RETURN)
		if s.Results != nil {
			p.print(blank)
			// Use indentList heuristic to make corner cases look

//
//	Statement =
//		Declaration | LabeledStmt | SimpleStmt |
//		GoStmt | ReturnStmt | BreakStmt | ContinueStmt | GotoStmt |
//		FallthroughStmt | Block | IfStmt | SwitchStmt | SelectStmt | ForStmt |
//		DeferStmt .
func (p *parser) stmtOrNil() Stmt {
	if trace {
		defer p.trace("stmt " + p.tok.String())()
	}

	// Most statements (assignments) start with an identifier;

		{"CompositeLit.Rbrace", Field, 0},
		{"CompositeLit.Type", Field, 0},
		{"Con", Const, 0},
		{"Decl", Type, 0},
		{"DeclStmt", Type, 0},
		{"DeclStmt.Decl", Field, 0},
		{"DeferStmt", Type, 0},
		{"DeferStmt.Call", Field, 0},
		{"DeferStmt.Defer", Field, 0},
		{"Ellipsis", Type, 0},
		{"Ellipsis.Ellipsis", Field, 0},
		{"Ellipsis.Elt", Field, 0},
		{"EmptyStmt", Type, 0},
		{"EmptyStmt.Implicit", Field, 5},