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feat: 🎸 added solutions for macro exercises

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This commit is contained in:
Karan Kadam 2022-12-28 11:28:11 +10:30
parent 8fd15ed6f6
commit 9e6f99d90f
4 changed files with 15 additions and 19 deletions
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4
exercises/macros/macros1.rs
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@ -1,8 +1,6 @@
// macros1.rs // macros1.rs
// Execute `rustlings hint macros1` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint macros1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
macro_rules! my_macro { macro_rules! my_macro {
() => { () => {
println!("Check out my macro!"); println!("Check out my macro!");
@ -10,5 +8,5 @@ macro_rules! my_macro {
} }
fn main() { fn main() {
my_macro(); my_macro!();
} }

10
exercises/macros/macros2.rs
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@ -1,14 +1,12 @@
// macros2.rs // macros2.rs
// Execute `rustlings hint macros2` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint macros2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
my_macro!();
}
macro_rules! my_macro { macro_rules! my_macro {
() => { () => {
println!("Check out my macro!"); println!("Check out my macro!");
}; };
} }
fn main() {
my_macro!();
}

3
exercises/macros/macros3.rs
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@ -2,8 +2,7 @@
// Make me compile, without taking the macro out of the module! // Make me compile, without taking the macro out of the module!
// Execute `rustlings hint macros3` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint macros3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE #[macro_use]
mod macros { mod macros {
macro_rules! my_macro { macro_rules! my_macro {
() => { () => {

9
exercises/macros/macros4.rs
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@ -1,14 +1,15 @@
// macros4.rs // macros4.rs
// Execute `rustlings hint macros4` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint macros4` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE #[macro_use]
mod macros {
macro_rules! my_macro { macro_rules! my_macro {
() => { () => {
println!("Check out my macro!"); println!("Check out my macro!");
} };
($val:expr) => { ($val:expr) => {
println!("Look at this other macro: {}", $val); println!("Look at this other macro: {}", $val);
};
} }
} }