1 files changed, 18 insertions, 0 deletions
diff --git a/vendor/clap/examples/tutorial_builder/03_05_default_values.rs b/vendor/clap/examples/tutorial_builder/03_05_default_values.rs
new file mode 100644
index 000000000..d259ee06e
--- /dev/null
+++ b/vendor/clap/examples/tutorial_builder/03_05_default_values.rs
@@ -0,0 +1,18 @@
+use clap::{arg, command, value_parser};
+
+fn main() {
+    let matches = command!() // requires `cargo` feature
+        .arg(
+            arg!([PORT])
+                .value_parser(value_parser!(u16))
+                .default_value("2020"),
+        )
+        .get_matches();
+
+    println!(
+        "port: {:?}",
+        matches
+            .get_one::<u16>("PORT")
+            .expect("default ensures there is always a value")
+    );
+}