If I have this function in src/test.rs
pub fn print_something(){
println!("Something");
}
how can I call it in the example/test.rs ?
I've tried with extern crate, mod, use but none of these worked.
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1 Answer
First, you have to declare the test module in src/lib.rs:
pub mod test;
Then, inside examples/test.rs, just use it as a library:
crate_name::test::print_something(); // Replace `crate_name` by the crate name
3 Comments
srgsanky
Is it possible to avoid using the actual crate name? I tried
crate:: and that didn't work.
Chayim Friedman
@srgsanky No, you cannot, because it is a different crate? But why would you want that?
srgsanky
After reading Chapter 7 of the rust book (doc.rust-lang.org/book/…), I now understand that example/test.rs and src/test.rs in this example are different crates. example/test.rs is a binary crates in this package. src/lib.rs and src/test.rs is part of the library crate in this package. A binary crate can use the paths in the library create only via the <crate_name>. The literal
crate can be used only when trying to refer to modules within the same crate.