docs(README.md): fixes the custom derive example in the readme
Closes
@@ -176,22 +176,26 @@ struct Opts {
/// Some input. Because this isn't an Option<T> it's required to be used
input: String,
/// A level of verbosity, and can be used multiple times
- #[clap(short = "v", long = "verbose", parse_from_occurrences)]
- verbose: Option<i32>,
+ #[clap(short = "v", long = "verbose", parse(from_occurrences))]
+ verbose: i32,
#[clap(subcommand)]
subcmd: SubCommand,
}
#[derive(Clap)]
enum SubCommand {
+ Test(Test),
+}
+
/// A subcommand for controlling testing
+#[derive(Clap)]
#[clap(name = "test", version = "1.3", author = "Someone Else")]
Test {
/// Print debug info
#[clap(short = "d")]
debug: bool
}
-}
+
fn main() {
let opts: Opts = Opts::parse();
@@ -201,7 +205,7 @@ fn main() {
// Vary the output based on how many times the user used the "verbose" flag
// (i.e. 'myprog -v -v -v' or 'myprog -vvv' vs 'myprog -v'
- match opts.verbose.unwrap_or(0) {
+ match opts.verbose {
0 => println!("No verbose info"),
1 => println!("Some verbose info"),
2 => println!("Tons of verbose info"),
@@ -211,7 +215,7 @@ fn main() {
// You can handle information about subcommands by requesting their matches by name
// (as below), requesting just the name used, or both at the same time
match opts.subcmd {
- SubCommand::Test @ t => {
+ SubCommand::Test(t) => {
if t.debug {
println!("Printing debug info...");
} else {
