iceberg/spec/schema/
utils.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::collections::HashMap;
19
20use crate::{Error, ErrorKind, Result};
21
22pub fn try_insert_field<V>(map: &mut HashMap<i32, V>, field_id: i32, value: V) -> Result<()> {
23    map.insert(field_id, value).map_or_else(
24        || Ok(()),
25        |_| {
26            Err(Error::new(
27                ErrorKind::DataInvalid,
28                format!("Found duplicate 'field.id' {field_id}. Field ids must be unique."),
29            ))
30        },
31    )
32}