EBADRQC         = syscall.Errno(0x38)
	EBADSLT         = syscall.Errno(0x39)
	EBFONT          = syscall.Errno(0x3b)
	ECANCELED       = syscall.Errno(0x7d)
	ECHRNG          = syscall.Errno(0x2c)
	ECOMM           = syscall.Errno(0x46)
	ECONNABORTED    = syscall.Errno(0x67)
	ECONNREFUSED    = syscall.Errno(0x6f)
	ECONNRESET      = syscall.Errno(0x68)
	EDEADLK         = syscall.Errno(0x23)

	EBADRQC         = syscall.Errno(0x38)
	EBADSLT         = syscall.Errno(0x39)
	EBFONT          = syscall.Errno(0x3b)
	ECANCELED       = syscall.Errno(0x7d)
	ECHRNG          = syscall.Errno(0x2c)
	ECOMM           = syscall.Errno(0x46)
	ECONNABORTED    = syscall.Errno(0x67)
	ECONNREFUSED    = syscall.Errno(0x6f)
	ECONNRESET      = syscall.Errno(0x68)
	EDEADLK         = syscall.Errno(0x23)

	case *ast.TypeSwitchStmt:
		a.apply(n, "Init", nil, n.Init)
		a.apply(n, "Assign", nil, n.Assign)
		a.apply(n, "Body", nil, n.Body)

	case *ast.CommClause:
		a.apply(n, "Comm", nil, n.Comm)
		a.applyList(n, "Body")

	case *ast.SelectStmt:
		a.apply(n, "Body", nil, n.Body)

	case *ast.ForStmt:
		a.apply(n, "Init", nil, n.Init)
		a.apply(n, "Cond", nil, n.Cond)

      exit 1
    fi

    # prune unused pinned replace directives
    comm -23 \
      <(go mod edit -json | jq -r '.Replace[] | .Old.Path' | sort) \
      <(go list -m -json all | jq -r .Path | sort) |
    while read -r X; do echo "-dropreplace=${X}"; done |
    xargs -L 100 go mod edit -fmt

			}
			if lhs != nil {
				comm = &ast.AssignStmt{lhs, pos, tok, []ast.Expr{rhs}}
			} else {
				comm = &ast.ExprStmt{rhs}
			}
		}
	} else {
		p.expect(token.DEFAULT)
	}

	colon := p.expect(token.COLON)
	body := p.parseStmtList()
	p.closeScope()

	return &ast.CommClause{pos, comm, colon, body}
}

		X   Expr // range X
		simpleStmt
	}

	CaseClause struct {
		Cases Expr // nil means default clause
		Body  []Stmt
		Colon Pos
		node
	}

	CommClause struct {
		Comm  SimpleStmt // send or receive stmt; nil means default clause
		Body  []Stmt
		Colon Pos
		node
	}
)

type stmt struct{ node }

func (stmt) aStmt() {}

type simpleStmt struct {
	stmt

		// scope.
		if n.Body != nil {
			r.walkStmts(n.Body.List)
		}

	case *ast.CommClause:
		r.openScope(n.Pos())
		defer r.closeScope()
		if n.Comm != nil {
			ast.Walk(r, n.Comm)
		}
		r.walkStmts(n.Body)

	case *ast.SelectStmt:
		// as for switch statements, select statement bodies don't get their own
		// scope.
		if n.Body != nil {
			r.walkStmts(n.Body.List)

	EBFONT          = syscall.Errno(0x39)
	EBUSY           = syscall.Errno(0x10)
	ECANCELED       = syscall.Errno(0x2f)
	ECHILD          = syscall.Errno(0xa)
	ECHRNG          = syscall.Errno(0x25)
	ECOMM           = syscall.Errno(0x46)
	ECONNABORTED    = syscall.Errno(0x82)
	ECONNREFUSED    = syscall.Errno(0x92)
	ECONNRESET      = syscall.Errno(0x83)
	EDEADLK         = syscall.Errno(0x2d)

	}

	pos := p.pos
	var comm ast.Stmt
	if p.tok == token.CASE {
		p.next()
		lhs := p.parseList(false)
		if p.tok == token.ARROW {
			// SendStmt
			if len(lhs) > 1 {
				p.errorExpected(lhs[0].Pos(), "1 expression")
				// continue with first expression
			}
			arrow := p.pos
			p.next()
			rhs := p.parseRhs()
			comm = &ast.SendStmt{Chan: lhs[0], Arrow: arrow, Value: rhs}

	C_RSYM    = 131 // Register variable
	C_RPSYM   = 132 // Argument to function or procedure stored in register
	C_STSYM   = 133 // Statically allocated symbol
	C_BCOMM   = 135 // Beginning of common block
	C_ECOML   = 136 // Local member of common block
	C_ECOMM   = 137 // End of common block
	C_DECL    = 140 // Declaration of object
	C_ENTRY   = 141 // Alternate entry
	C_FUN     = 142 // Function or procedure