github.com/matrixorigin/matrixone@v1.2.0/pkg/sql/parsers/tree/prepare.go (about)

     1  // Copyright 2021 - 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tree
    16  
    17  import "github.com/matrixorigin/matrixone/pkg/common/reuse"
    18  
    19  func init() {
    20  	reuse.CreatePool[PrepareStmt](
    21  		func() *PrepareStmt { return &PrepareStmt{} },
    22  		func(p *PrepareStmt) { p.reset() },
    23  		reuse.DefaultOptions[PrepareStmt](), //.
    24  	) //WithEnableChecker()
    25  
    26  	reuse.CreatePool[PrepareString](
    27  		func() *PrepareString { return &PrepareString{} },
    28  		func(p *PrepareString) { p.reset() },
    29  		reuse.DefaultOptions[PrepareString](), //.
    30  	) //WithEnableChecker()
    31  }
    32  
    33  type Prepare interface {
    34  	Statement
    35  }
    36  
    37  type prepareImpl struct {
    38  	Prepare
    39  	Format string
    40  }
    41  
    42  func (node *prepareImpl) Free() {
    43  }
    44  
    45  type PrepareStmt struct {
    46  	prepareImpl
    47  	Name Identifier
    48  	Stmt Statement
    49  }
    50  
    51  func (node *PrepareStmt) Format(ctx *FmtCtx) {
    52  	ctx.WriteString("prepare ")
    53  	node.Name.Format(ctx)
    54  	ctx.WriteString(" from ")
    55  	node.Stmt.Format(ctx)
    56  }
    57  
    58  func (node *PrepareStmt) GetStatementType() string { return "Prepare" }
    59  func (node *PrepareStmt) GetQueryType() string     { return QueryTypeOth }
    60  
    61  func (node *PrepareStmt) Free() {
    62  	reuse.Free[PrepareStmt](node, nil)
    63  }
    64  
    65  func (node *PrepareStmt) reset() {
    66  	*node = PrepareStmt{}
    67  }
    68  
    69  func (node PrepareStmt) TypeName() string { return "tree.PrepareStmt" }
    70  
    71  type PrepareString struct {
    72  	prepareImpl
    73  	Name Identifier
    74  	Sql  string
    75  }
    76  
    77  func (node *PrepareString) Format(ctx *FmtCtx) {
    78  	ctx.WriteString("prepare ")
    79  	node.Name.Format(ctx)
    80  	ctx.WriteString(" from ")
    81  	ctx.WriteString(node.Sql)
    82  }
    83  
    84  func (node *PrepareString) GetStatementType() string { return "Prepare" }
    85  func (node *PrepareString) GetQueryType() string     { return QueryTypeOth }
    86  
    87  func (node *PrepareString) Free() {
    88  	reuse.Free[PrepareString](node, nil)
    89  }
    90  
    91  func (node *PrepareString) reset() {
    92  	*node = PrepareString{}
    93  }
    94  
    95  func (node PrepareString) TypeName() string { return "tree.PrepareString" }
    96  
    97  func NewPrepareStmt(name Identifier, statement Statement) *PrepareStmt {
    98  	preparestmt := reuse.Alloc[PrepareStmt](nil)
    99  	preparestmt.Name = name
   100  	preparestmt.Stmt = statement
   101  	return preparestmt
   102  }
   103  
   104  func NewPrepareString(name Identifier, sql string) *PrepareString {
   105  	preparestmt := reuse.Alloc[PrepareString](nil)
   106  	preparestmt.Name = name
   107  	preparestmt.Sql = sql
   108  	return preparestmt
   109  }