// Copyright 2015 The Cockroach Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.

// This code was derived from https://github.com/youtube/vitess.
//
// Copyright 2012, Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file

package parser

import (
	"bytes"

	"github.com/cockroachdb/cockroach/pkg/sql/privilege"
)

// Revoke represents a REVOKE statements.
// PrivilegeList and TargetList are defined in grant.go
type Revoke struct {
	Privileges privilege.List
	Targets    TargetList
	Grantees   NameList
}

// Format implements the NodeFormatter interface.
func (node *Revoke) Format(buf *bytes.Buffer, f FmtFlags) {
	buf.WriteString("REVOKE ")
	node.Privileges.Format(buf)
	buf.WriteString(" ON ")
	FormatNode(buf, f, node.Targets)
	buf.WriteString(" FROM ")
	FormatNode(buf, f, node.Grantees)
}