diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/doc/trpl/crates-and-modules.md | 56 |
1 files changed, 29 insertions, 27 deletions
diff --git a/src/doc/trpl/crates-and-modules.md b/src/doc/trpl/crates-and-modules.md index 0cc54c9b165..83e8cc629fd 100644 --- a/src/doc/trpl/crates-and-modules.md +++ b/src/doc/trpl/crates-and-modules.md @@ -111,8 +111,8 @@ Cargo will build this crate as a library: ```bash $ cargo build Compiling phrases v0.0.1 (file:///home/you/projects/phrases) -$ ls target -deps libphrases-a7448e02a0468eaa.rlib native +$ ls target/debug +build deps examples libphrases-a7448e02a0468eaa.rlib native ``` `libphrase-hash.rlib` is the compiled crate. Before we see how to use this @@ -163,9 +163,12 @@ $ tree . │ │ └── mod.rs │ └── lib.rs └── target - ├── deps - ├── libphrases-a7448e02a0468eaa.rlib - └── native + └── debug + ├── build + ├── deps + ├── examples + ├── libphrases-a7448e02a0468eaa.rlib + └── native ``` `src/lib.rs` is our crate root, and looks like this: @@ -214,8 +217,6 @@ fn goodbye() -> String { Put this in `src/japanese/greetings.rs`: ```rust -// in src/japanese/greetings.rs - fn hello() -> String { "こんにちは".to_string() } @@ -275,14 +276,15 @@ this: ```bash $ cargo build Compiling phrases v0.0.1 (file:///home/you/projects/phrases) -/home/you/projects/phrases/src/main.rs:4:38: 4:72 error: function `hello` is private -/home/you/projects/phrases/src/main.rs:4 println!("Hello in English: {}", phrases::english::greetings::hello()); - ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +src/main.rs:4:38: 4:72 error: function `hello` is private +src/main.rs:4 println!("Hello in English: {}", phrases::english::greetings::hello()); + ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: in expansion of format_args! -<std macros>:2:23: 2:77 note: expansion site -<std macros>:1:1: 3:2 note: in expansion of println! -/home/you/projects/phrases/src/main.rs:4:5: 4:76 note: expansion site - +<std macros>:2:25: 2:58 note: expansion site +<std macros>:1:1: 2:62 note: in expansion of print! +<std macros>:3:1: 3:54 note: expansion site +<std macros>:1:1: 3:58 note: in expansion of println! +phrases/src/main.rs:4:5: 4:76 note: expansion site ``` By default, everything is private in Rust. Let's talk about this in some more @@ -340,15 +342,15 @@ functions: ```bash $ cargo run Compiling phrases v0.0.1 (file:///home/you/projects/phrases) -/home/you/projects/phrases/src/japanese/greetings.rs:1:1: 3:2 warning: code is never used: `hello`, #[warn(dead_code)] on by default -/home/you/projects/phrases/src/japanese/greetings.rs:1 fn hello() -> String { -/home/you/projects/phrases/src/japanese/greetings.rs:2 "こんにちは".to_string() -/home/you/projects/phrases/src/japanese/greetings.rs:3 } -/home/you/projects/phrases/src/japanese/farewells.rs:1:1: 3:2 warning: code is never used: `goodbye`, #[warn(dead_code)] on by default -/home/you/projects/phrases/src/japanese/farewells.rs:1 fn goodbye() -> String { -/home/you/projects/phrases/src/japanese/farewells.rs:2 "さようなら".to_string() -/home/you/projects/phrases/src/japanese/farewells.rs:3 } - Running `target/phrases` +src/japanese/greetings.rs:1:1: 3:2 warning: function is never used: `hello`, #[warn(dead_code)] on by default +src/japanese/greetings.rs:1 fn hello() -> String { +src/japanese/greetings.rs:2 "こんにちは".to_string() +src/japanese/greetings.rs:3 } +src/japanese/farewells.rs:1:1: 3:2 warning: function is never used: `goodbye`, #[warn(dead_code)] on by default +src/japanese/farewells.rs:1 fn goodbye() -> String { +src/japanese/farewells.rs:2 "さようなら".to_string() +src/japanese/farewells.rs:3 } + Running `target/debug/phrases` Hello in English: Hello! Goodbye in English: Goodbye. ``` @@ -414,9 +416,9 @@ Rust will give us a compile-time error: ```text Compiling phrases v0.0.1 (file:///home/you/projects/phrases) -/home/you/projects/phrases/src/main.rs:4:5: 4:40 error: a value named `hello` has already been imported in this module -/home/you/projects/phrases/src/main.rs:4 use phrases::japanese::greetings::hello; - ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +src/main.rs:4:5: 4:40 error: a value named `hello` has already been imported in this module [E0252] +src/main.rs:4 use phrases::japanese::greetings::hello; + ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: aborting due to previous error Could not compile `phrases`. ``` @@ -523,7 +525,7 @@ This will build and run: ```bash $ cargo run Compiling phrases v0.0.1 (file:///home/you/projects/phrases) - Running `target/phrases` + Running `target/debug/phrases` Hello in English: Hello! Goodbye in English: Goodbye. Hello in Japanese: こんにちは |