b6a95a8cb3
* Dropped unused codekit config * Integrated dynamic and static bindata for public * Ignore public bindata * Add a general generate make task * Integrated flexible public assets into web command * Updated vendoring, added all missiong govendor deps * Made the linter happy with the bindata and dynamic code * Moved public bindata definition to modules directory * Ignoring the new bindata path now * Updated to the new public modules import path * Updated public bindata command and drop the new prefix
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
// Copyright 2015 PingCAP, Inc.
|
|
//
|
|
// 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,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package ast
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/pingcap/tidb/util/types"
|
|
)
|
|
|
|
// ToString converts a node to a string for debugging purpose.
|
|
func ToString(node Node) string {
|
|
s := &stringer{strMap: map[Node]string{}}
|
|
node.Accept(s)
|
|
return s.strMap[node]
|
|
}
|
|
|
|
type stringer struct {
|
|
strMap map[Node]string
|
|
}
|
|
|
|
// Enter implements Visitor Enter interface.
|
|
func (c *stringer) Enter(node Node) (Node, bool) {
|
|
return node, false
|
|
}
|
|
|
|
// Leave implements Visitor Leave interface.
|
|
func (c *stringer) Leave(in Node) (out Node, ok bool) {
|
|
switch x := in.(type) {
|
|
case *BinaryOperationExpr:
|
|
left := c.strMap[x.L]
|
|
right := c.strMap[x.R]
|
|
c.strMap[x] = left + " " + x.Op.String() + " " + right
|
|
case *ValueExpr:
|
|
str, _ := types.ToString(x.GetValue())
|
|
c.strMap[x] = str
|
|
case *ParenthesesExpr:
|
|
c.strMap[x] = "(" + c.strMap[x.Expr] + ")"
|
|
case *ColumnNameExpr:
|
|
c.strMap[x] = x.Name.Table.O + "." + x.Name.Name.O
|
|
case *BetweenExpr:
|
|
c.strMap[x] = c.strMap[x.Expr] + " BETWWEN " + c.strMap[x.Left] + " AND " + c.strMap[x.Right]
|
|
default:
|
|
c.strMap[in] = fmt.Sprintf("%T", in)
|
|
}
|
|
return in, true
|
|
}
|