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- Where句 - Rust By Example 日本語版 7940
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...tInOption { fn print_in_option(self); } // Because we would otherwise have to express this as `T: Debug`...T> PrintInOption for T where Option<T>: Debug { // We want `Option<T>: Debug` as our bound because that... - https://man.plustar.jp/rust/example/generics/where.html - [similar]
- Integration testing - Rust By Example 日本語版 7940
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...test: tests/integration_test.rs : // extern crate we're testing, same as any other code would do. exter...a separate crate. One way of sharing some code between integration tests is making a module with public...th test: tests/integration_test.rs // extern crate we're testing, same as any other code will do. extern... - https://man.plustar.jp/rust/example/testing/integration_testing.html - [similar]
- Returning Traits with dyn - Rust By Example 日本語版 7940
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...entations will need different amounts of memory. However, there's an easy workaround. Instead of returni...n guarantee it points to a heap-allocated Animal , we can return a trait from our function! Rust tries t...// Returns some struct that implements Animal, but we don't know which one at compile time. fn random_an... - https://man.plustar.jp/rust/example/trait/dyn.html - [similar]
- Combinators: map - Rust By Example 日本語版 7782
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...d(food)), None => None, } } // Cooking food. Here, we showcase `map()` instead of `match` for case handl...n to peel, chop, and cook food all in sequence. // We chain multiple uses of `map()` to simplify the cod... - https://man.plustar.jp/rust/example/error/option_unwrap/map.html - [similar]
- Resultのmap - Rust By Example 日本語版 7782
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...:ParseIntError; // With the return type rewritten, we use pattern matching without `unwrap()`. // リター...fn main() { // This still presents a reasonable answer. // ここは以前と変わらず、妥当な解を与えます。 le...t twenty = multiply("10", "2"); print(twenty); // The fo...use std::num::ParseIntError; // As with `Option`, we can use combinators such as `map()`. // This funct... - https://man.plustar.jp/rust/example/error/result/result_map.html - [similar]
- Unit testing - Rust By Example 日本語版 7624
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...nctions typically perform some setup, run the code we want to test, then assert whether the results are...what we expect. Most unit tests go into a tests mod with t... - https://man.plustar.jp/rust/example/testing/unit_testing.html - [similar]
- Raw identifiers - Rust By Example 日本語版 7151
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...use keywords where they would not normally be allowed. This is particularly useful when Rust introduces...with the same name as a keyword introduced in a newer edition. For example, consider a crate foo compil...e in the 2018 edition, so without raw identifiers, we would have no way to name the function. extern cra... - https://man.plustar.jp/rust/example/compatibility/raw_identifiers.html - [similar]
- panic - Rust By Example 日本語版 7151
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...ch sugary beverages. // Princesses hate snakes, so we need to stop if she disapproves! // 甘すぎる飲み物... - https://man.plustar.jp/rust/example/error/panic.html - [similar]
- 構造体 - Rust By Example 日本語版 7151
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...ることもできる。 Foo { y, .. } => println!("y = {}, we don't care about x", y), // this will give an erro... - https://man.plustar.jp/rust/example/flow_control/match/destructuring/destructure... - [similar]
- 関数 - Rust By Example 日本語版 7151
- Introduction 1. Hello World ❱ 1.1. コメント 1.2. フォーマットしてプリント ❱ 1.2.1. デバッグ 1.2.
...、関数の定義を行う順番に制限はない。 fn main() { // We can use this function here, and define it somewher... - https://man.plustar.jp/rust/example/fn.html - [similar]