1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
// 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.. //! The Rust Prelude. //! //! Rust comes with a variety of things in its standard library. However, if //! you had to manually import every single thing that you used, it would be //! very verbose. But importing a lot of things that a program never uses isn't //! good either. A balance needs to be struck. //! //! The *prelude* is the list of things that Rust automatically imports into //! every Rust program. It's kept as small as possible, and is focused on //! things, particularly traits, which are used in almost every single Rust //! program. //! //! On a technical level, Rust inserts //! pub mod v1;