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typedecoder.go
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/
typedecoder.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 typemanager
import (
"github.com/go-errors/errors"
"github.com/jackc/pgx/v5/pgconn"
"github.com/jackc/pgx/v5/pgtype"
)
type typeDecoder func(src []byte) (any, error)
func findTypeDecoder(
typeManager *typeManager, field pgconn.FieldDescription,
) (typeDecoder, error) {
if pgType, ok := typeManager.typeMap.TypeForOID(field.DataTypeOID); ok {
// Store a decoder wrapper for easier usage
return asTypeDecoder(typeManager, pgType, field), nil
}
return nil, errors.Errorf("Unsupported type oid: %d", field.DataTypeOID)
}
func asTypeDecoder(
typeManager *typeManager, pgType *pgtype.Type, field pgconn.FieldDescription,
) func(src []byte) (any, error) {
return func(src []byte) (any, error) {
return pgType.Codec.DecodeValue(typeManager.typeMap, field.DataTypeOID, field.Format, src)
}
}