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author | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
commit | 1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch) | |
tree | 7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/clap/examples/derive_ref/flatten_hand_args.rs | |
parent | 5ecd8cf2cba827454317368b68571df0d13d7842 (diff) | |
download | fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip |
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/clap/examples/derive_ref/flatten_hand_args.rs')
-rw-r--r-- | vendor/clap/examples/derive_ref/flatten_hand_args.rs | 91 |
1 files changed, 91 insertions, 0 deletions
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:#?}"); +} |