surrealpatch/db/let.go

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// Copyright © 2016 Abcum Ltd
//
// 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 db
import (
"github.com/abcum/surreal/kvs"
"github.com/abcum/surreal/sql"
)
func (e *executor) executeLetStatement(txn kvs.TX, ast *sql.LetStatement) (out []interface{}, err error) {
switch expr := ast.Expr.(type) {
default:
e.Set(ast.Name, expr)
case *sql.Param:
e.Set(ast.Name, e.Get(expr.ID))
}
return
}