unsorted.toml

[[exercises]]
name = "modules1"
path = "exercises/10_modules/modules1.rs"
mode = "compile"
hint = """
Everything is private in Rust by default-- but there's a keyword we can use
to make something public! The compiler error should point to the thing that
needs to be public."""

[[exercises]]
name = "modules2"
path = "exercises/10_modules/modules2.rs"
mode = "compile"
hint = """
The delicious_snacks module is trying to present an external interface that is
different than its internal structure (the `fruits` and `veggies` modules and
associated constants). Complete the `use` statements to fit the uses in main and
find the one keyword missing for both constants.

Learn more at https://doc.rust-lang.org/book/ch07-04-bringing-paths-into-scope-with-the-use-keyword.html#re-exporting-names-with-pub-use"""

[[exercises]]
name = "modules3"
path = "exercises/10_modules/modules3.rs"
mode = "compile"
hint = """
`UNIX_EPOCH` and `SystemTime` are declared in the `std::time` module. Add a
`use` statement for these two to bring them into scope. You can use nested
paths or the glob operator to bring these two in using only one line."""

[[exercises]]
name = "macros1"
path = "exercises/21_macros/macros1.rs"
mode = "compile"
hint = """
When you call a macro, you need to add something special compared to a
regular function call. If you're stuck, take a look at what's inside
`my_macro`."""

[[exercises]]
name = "macros2"
path = "exercises/21_macros/macros2.rs"
mode = "compile"
hint = """
Macros don't quite play by the same rules as the rest of Rust, in terms of
what's available where.

Unlike other things in Rust, the order of "where you define a macro" versus
"where you use it" actually matters."""

[[exercises]]
name = "macros3"
path = "exercises/21_macros/macros3.rs"
mode = "compile"
hint = """
In order to use a macro outside of its module, you need to do something
special to the module to lift the macro out into its parent.

The same trick also works on "extern crate" statements for crates that have
exported macros, if you've seen any of those around."""

[[exercises]]
name = "macros4"
path = "exercises/21_macros/macros4.rs"
mode = "compile"
hint = """
You only need to add a single character to make this compile.

The way macros are written, it wants to see something between each "macro arm",
so it can separate them.

That's all the macro exercises we have in here, but it's barely even scratching
the surface of what you can do with Rust's macros. For a more thorough
introduction, you can have a read through 'The Little Book of Rust Macros':
https://veykril.github.io/tlborm/"""