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discard.go
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discard.go
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// Copyright 2017 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.
package parser
import "bytes"
// Discard represents a DISCARD statement.
type Discard struct {
Mode DiscardMode
}
var _ Statement = &Discard{}
// DiscardMode is an enum of the various discard modes.
type DiscardMode int
const (
// DiscardModeAll represents a DISCARD ALL statement.
DiscardModeAll DiscardMode = iota
)
// Format implements the NodeFormatter interface.
func (node *Discard) Format(buf *bytes.Buffer, f FmtFlags) {
switch node.Mode {
case DiscardModeAll:
buf.WriteString("DISCARD ALL")
}
}
// String implements the Statement interface.
func (node *Discard) String() string {
return AsString(node)
}