From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Mon, 8 Jan 2024 01:21:28 +0400
Subject: Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>
---
 .../clap/examples/derive_ref/flatten_hand_args.rs  | 91 ++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 vendor/clap/examples/derive_ref/flatten_hand_args.rs

(limited to 'vendor/clap/examples/derive_ref/flatten_hand_args.rs')

diff --git a/vendor/clap/examples/derive_ref/flatten_hand_args.rs b/vendor/clap/examples/derive_ref/flatten_hand_args.rs
new file mode 100644
index 0000000..36aac09
--- /dev/null
+++ b/vendor/clap/examples/derive_ref/flatten_hand_args.rs
@@ -0,0 +1,91 @@
+use clap::error::Error;
+use clap::{Arg, ArgAction, ArgMatches, Args, Command, FromArgMatches, Parser};
+
+#[derive(Debug)]
+struct CliArgs {
+    foo: bool,
+    bar: bool,
+    quuz: Option<String>,
+}
+
+impl FromArgMatches for CliArgs {
+    fn from_arg_matches(matches: &ArgMatches) -> Result<Self, Error> {
+        let mut matches = matches.clone();
+        Self::from_arg_matches_mut(&mut matches)
+    }
+    fn from_arg_matches_mut(matches: &mut ArgMatches) -> Result<Self, Error> {
+        Ok(Self {
+            foo: matches.get_flag("foo"),
+            bar: matches.get_flag("bar"),
+            quuz: matches.remove_one::<String>("quuz"),
+        })
+    }
+    fn update_from_arg_matches(&mut self, matches: &ArgMatches) -> Result<(), Error> {
+        let mut matches = matches.clone();
+        self.update_from_arg_matches_mut(&mut matches)
+    }
+    fn update_from_arg_matches_mut(&mut self, matches: &mut ArgMatches) -> Result<(), Error> {
+        self.foo |= matches.get_flag("foo");
+        self.bar |= matches.get_flag("bar");
+        if let Some(quuz) = matches.remove_one::<String>("quuz") {
+            self.quuz = Some(quuz);
+        }
+        Ok(())
+    }
+}
+
+impl Args for CliArgs {
+    fn augment_args(cmd: Command) -> Command {
+        cmd.arg(
+            Arg::new("foo")
+                .short('f')
+                .long("foo")
+                .action(ArgAction::SetTrue),
+        )
+        .arg(
+            Arg::new("bar")
+                .short('b')
+                .long("bar")
+                .action(ArgAction::SetTrue),
+        )
+        .arg(
+            Arg::new("quuz")
+                .short('q')
+                .long("quuz")
+                .action(ArgAction::Set),
+        )
+    }
+    fn augment_args_for_update(cmd: Command) -> Command {
+        cmd.arg(
+            Arg::new("foo")
+                .short('f')
+                .long("foo")
+                .action(ArgAction::SetTrue),
+        )
+        .arg(
+            Arg::new("bar")
+                .short('b')
+                .long("bar")
+                .action(ArgAction::SetTrue),
+        )
+        .arg(
+            Arg::new("quuz")
+                .short('q')
+                .long("quuz")
+                .action(ArgAction::Set),
+        )
+    }
+}
+
+#[derive(Parser, Debug)]
+struct Cli {
+    #[arg(short, long)]
+    top_level: bool,
+    #[command(flatten)]
+    more_args: CliArgs,
+}
+
+fn main() {
+    let args = Cli::parse();
+    println!("{args:#?}");
+}
-- 
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