clap 4.6.7: clap::ArgMatches

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

[[package]]
name = "anstream"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "824a212faf96e9acacdbd09febd34438f8f711fb84e09a8916013cd7815ca28d"
dependencies = [
 "anstyle",
 "anstyle-parse",
 "anstyle-query",
 "anstyle-wincon",
 "colorchoice",
 "is_terminal_polyfill",
 "utf8parse",
]

[[package]]
name = "anstyle"
version = "1.0.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "940b3a0ca603d1eade50a4846a2afffd5ef57a9feac2c0e2ec2e14f9ead76000"

[[package]]
name = "anstyle-parse"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "52ce7f38b242319f7cabaa6813055467063ecdc9d355bbb4ce0c68908cd8130e"
dependencies = [
 "utf8parse",
]

[[package]]
name = "anstyle-query"
version = "1.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
dependencies = [
 "windows-sys",
]

[[package]]
name = "anstyle-wincon"
version = "3.0.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
dependencies = [
 "anstyle",
 "once_cell_polyfill",
 "windows-sys",
]

[[package]]
name = "clap"
version = "4.6.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "aa8876b300ab35ba921adea3dfd70157a46249b33f95c9084ae5709785478946"
dependencies = [
 "clap_builder",
]

[[package]]
name = "clap_builder"
version = "4.6.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ec0797fb7aeb1406c84efac526901f7ec3ead2124f946b494e72879d4b54704d"
dependencies = [
 "anstream",
 "anstyle",
 "clap_lex",
 "strsim",
]

[[package]]
name = "clap_lex"
version = "1.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1c133bc6a41be0d194c306b5506d15e6feeea7b1d6604bd3f8310dfb2ca96486"

[[package]]
name = "colorchoice"
version = "1.0.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d07550c9036bf2ae0c684c4297d503f838287c83c53686d05370d0e139ae570"

[[package]]
name = "is_terminal_polyfill"
version = "1.70.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"

[[package]]
name = "once_cell_polyfill"
version = "1.70.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"

[[package]]
name = "sample"
version = "0.1.0"
dependencies = [
 "clap",
]

[[package]]
name = "strsim"
version = "0.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"

[[package]]
name = "utf8parse"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"

[[package]]
name = "windows-link"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"

[[package]]
name = "windows-sys"
version = "0.61.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
dependencies = [
 "windows-link",
]

[package]
name = "sample"
version = "0.1.0"
edition = "2021"

[dependencies]
clap = "=4.6.7"

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify clap::ArgMatches in pkg:cargo/clap@4.6.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/clap@4.6.7
Demonstrate these symbols/APIs:
  - clap::ArgMatches

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:ae4d04db47a7ec3e7f381a6358d7234a662377a9092169a8ed31c0c1d4f50781","contract":["ArgMatches::get_one::\u003cString\u003e returns typed references to parsed and default single-value options","ArgMatches::get_count returns u8 occurrence counts for ArgAction::Count flags","ArgMatches::get_many::\u003cString\u003e iterates over repeated ArgAction::Append values in order","ArgMatches::subcommand returns the active subcommand name and nested \u0026ArgMatches","ArgMatches::remove_one::\u003cString\u003e moves ownership of the parsed value out of mutable ArgMatches"],"goal":"verify clap::ArgMatches in pkg:cargo/clap@4.6.7","kind":"HOW","packages":["pkg:cargo/clap@4.6.7"],"schemaVersion":1,"symbols":["clap::ArgMatches"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","ecosystem":"cargo","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/clap@4.6.7"],"schemaVersion":1,"subject":"pkg:cargo/clap@4.6.7","symbols":["clap::ArgMatches"],"verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify clap::ArgMatches in pkg:cargo/clap@4.6.7",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/clap@4.6.7"
  ],
  "symbols": [
    "clap::ArgMatches"
  ]
}

use clap::{Arg, ArgAction, ArgMatches, Command};

fn parse_args(args: &[&str]) -> ArgMatches {
    Command::new("demo")
        .arg(
            Arg::new("config")
                .short('c')
                .long("config")
                .default_value("default.toml"),
        )
        .arg(
            Arg::new("verbose")
                .short('v')
                .action(ArgAction::Count),
        )
        .arg(
            Arg::new("tag")
                .long("tag")
                .action(ArgAction::Append),
        )
        .subcommand(
            Command::new("run")
                .arg(Arg::new("target").required(true)),
        )
        .try_get_matches_from(args)
        .expect("valid arguments")
}

fn main() {
    let matches: ArgMatches = parse_args(&[
        "demo",
        "-vv",
        "--config",
        "custom.toml",
        "--tag",
        "alpha",
        "--tag",
        "beta",
        "run",
        "service-a",
    ]);

    assert!(matches.args_present());
    assert!(matches.contains_id("config"));
    assert_eq!(
        matches.get_one::<String>("config").map(String::as_str),
        Some("custom.toml")
    );
    assert_eq!(matches.get_count("verbose"), 2);

    let tags: Vec<&str> = matches
        .get_many::<String>("tag")
        .expect("tags present")
        .map(String::as_str)
        .collect();
    assert_eq!(tags, vec!["alpha", "beta"]);

    assert_eq!(matches.subcommand_name(), Some("run"));
    let (sub_name, sub_matches): (&str, &ArgMatches) =
        matches.subcommand().expect("subcommand present");
    assert_eq!(sub_name, "run");
    assert_eq!(
        sub_matches.get_one::<String>("target").map(String::as_str),
        Some("service-a")
    );

    let defaults: ArgMatches = parse_args(&["demo"]);
    assert_eq!(
        defaults.get_one::<String>("config").map(String::as_str),
        Some("default.toml")
    );
    assert_eq!(defaults.get_count("verbose"), 0);
    assert!(defaults.subcommand().is_none());
}

use clap::{Arg, ArgAction, ArgMatches, Command};

#[test]
fn contract_arg_matches() {
    let mut matches: ArgMatches = Command::new("app")
        .arg(Arg::new("name").long("name").required(true))
        .arg(Arg::new("flag").short('f').action(ArgAction::SetTrue))
        .try_get_matches_from(["app", "--name", "demo", "-f"])
        .expect("matches");

    assert!(matches.contains_id("name"));
    assert_eq!(matches.get_flag("flag"), true);
    let owned_name: Option<String> = matches.remove_one::<String>("name");
    assert_eq!(owned_name.as_deref(), Some("demo"));
}