github.com/dolthub/go-mysql-server@v0.18.0/sql/plan/trigger_begin_end_block.go (about)

     1  // Copyright 2020-2021 Dolthub, Inc.
     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 plan
    16  
    17  import (
    18  	"github.com/dolthub/go-mysql-server/sql"
    19  )
    20  
    21  // TriggerBeginEndBlock represents a BEGIN/END block specific to TRIGGER execution, which has special considerations
    22  // regarding logic execution through the RowIter function.
    23  type TriggerBeginEndBlock struct {
    24  	*BeginEndBlock
    25  }
    26  
    27  var _ sql.Node = (*TriggerBeginEndBlock)(nil)
    28  var _ sql.DebugStringer = (*TriggerBeginEndBlock)(nil)
    29  var _ sql.CollationCoercible = (*TriggerBeginEndBlock)(nil)
    30  var _ RepresentsLabeledBlock = (*TriggerBeginEndBlock)(nil)
    31  var _ RepresentsScope = (*TriggerBeginEndBlock)(nil)
    32  
    33  // NewTriggerBeginEndBlock creates a new *TriggerBeginEndBlock node.
    34  func NewTriggerBeginEndBlock(block *BeginEndBlock) *TriggerBeginEndBlock {
    35  	return &TriggerBeginEndBlock{
    36  		BeginEndBlock: block,
    37  	}
    38  }
    39  
    40  // WithChildren implements the sql.Node interface.
    41  func (b *TriggerBeginEndBlock) WithChildren(children ...sql.Node) (sql.Node, error) {
    42  	return NewTriggerBeginEndBlock(NewBeginEndBlock(b.BeginEndBlock.Label, NewBlock(children))), nil
    43  }
    44  
    45  // CheckPrivileges implements the interface sql.Node.
    46  func (b *TriggerBeginEndBlock) CheckPrivileges(ctx *sql.Context, opChecker sql.PrivilegedOperationChecker) bool {
    47  	return b.Block.CheckPrivileges(ctx, opChecker)
    48  }