CodeSampleX

Exemple

clap 4.6.7

Échantillon vérifié pour cargo clap 4.6.7. Le contrat s'est exécuté sur rust 1 · linux alpine/x64 · docker et a réussi : Command and Arg builder constructs…

sha256:0a61ded9333ad5a94566a675b89f61d4fdc77f408a5db07b79d6fd9ced8dc321

Ce réseau offre une seule chose : un échantillon qui compile. Il l'a exécuté dans un bac à sable et conservé le reçu signé. Il ne note rien et ne garantit rien : si le même code compile chez vous, il ne l'a pas mesuré. Combien de clés de signature distinctes ont déposé un reçu de contrat réussi. Une seule, c'est l'auteur ; plus d'une signifie que quelqu'un d'autre l'a compilé aussi. Une clé est auto-générée sans identité enregistrée derrière, donc on compte des clés, pas des personnes. MIT-0

Preuves d'exécution

L'environnement déclaré et les exécutions signées sont séparés, pour que vous voyiez exactement ce que cet échantillon a exécuté et où.

Base de preuve
Contrat signé réussi
Reçus de vérification
1
Clés de signature qui l’ont compilé
1
Environnement déclaré linux · alpine · musl x64 cargo

Environnements des exécutions de vérification

Environnement Contrat Étapes Exécution
rust 1 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · cargo@1rust:1-alpine@sha256:a10e64dd139b…		 2026-10-22

Cas

HOW
Objectif
verify pkg:cargo/clap@4.6.7
Paquets
Créé
2026-10-22T10:30:51Z

Contrat

  1. Command and Arg builder constructs flags, options, and positional arguments
  2. try_get_matches_from parses valid inputs and respects default values and flags
  3. PossibleValuesParser validates allowed choices and rejects invalid values
  4. Missing required positional argument returns MissingRequiredArgument error
  5. Unknown argument returns UnknownArgument error
  6. Subcommands are recognized and dispatch sub-arguments correctly

Fichiers

  • Cargo.lock
  • Cargo.toml
  • PROMPT.md
  • csx.json
  • spec.json
  • src/lib.rs
  • test/contract.rs

Télécharger l’artefact source (tar.gz)

Code source

Cargo.lock
# 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-clap"
version = "1.0.0"
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",
]
Cargo.toml
[package]
name = "sample-clap"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
clap = "=4.6.7"

[[bin]]
name = "contract"
path = "test/contract.rs"
PROMPT.md
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 pkg:cargo/clap@4.6.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/clap@4.6.7

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.
csx.json
{"case":{"caseId":"case:sha256:0737ad32097782ed6988ff7b52df5f8748977721acfb0dc17ad32adda80d58d0","contract":["Command and Arg builder constructs flags, options, and positional arguments","try_get_matches_from parses valid inputs and respects default values and flags","PossibleValuesParser validates allowed choices and rejects invalid values","Missing required positional argument returns MissingRequiredArgument error","Unknown argument returns UnknownArgument error","Subcommands are recognized and dispatch sub-arguments correctly"],"goal":"verify pkg:cargo/clap@4.6.7","kind":"HOW","packages":["pkg:cargo/clap@4.6.7"],"schemaVersion":1},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","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","verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/clap@4.6.7",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/clap@4.6.7"
  ]
}
src/lib.rs
//! Clean-room verification sample for clap.

pub use clap::*;
test/contract.rs
use clap::builder::PossibleValuesParser;
use clap::error::ErrorKind;
use clap::{Arg, ArgAction, Command};

fn main() {
    // 1. Command and Arg builder constructs flags, options, and positional arguments
    let cmd = Command::new("testapp")
        .version("1.0.0")
        .about("A test CLI application using clap")
        .args_conflicts_with_subcommands(true)
        .arg(
            Arg::new("verbose")
                .short('v')
                .long("verbose")
                .action(ArgAction::Count)
                .help("Verbosity level"),
        )
        .arg(
            Arg::new("config")
                .short('c')
                .long("config")
                .action(ArgAction::Set)
                .default_value("config.toml")
                .help("Configuration file path"),
        )
        .arg(
            Arg::new("mode")
                .short('m')
                .long("mode")
                .action(ArgAction::Set)
                .value_parser(PossibleValuesParser::new(["fast", "safe"]))
                .help("Execution mode"),
        )
        .arg(
            Arg::new("input")
                .action(ArgAction::Set)
                .required(true)
                .help("Input file to process"),
        )
        .subcommand(
            Command::new("run")
                .about("Run the task")
                .arg(
                    Arg::new("dry-run")
                        .long("dry-run")
                        .action(ArgAction::SetTrue),
                ),
        );

    // 2. try_get_matches_from parses valid inputs and respects default values and flags
    let matches = cmd
        .clone()
        .try_get_matches_from(vec!["testapp", "-vv", "input.txt"])
        .expect("should parse valid arguments");

    assert_eq!(matches.get_count("verbose"), 2);
    assert_eq!(
        matches.get_one::<String>("config").map(String::as_str),
        Some("config.toml")
    );
    assert_eq!(
        matches.get_one::<String>("input").map(String::as_str),
        Some("input.txt")
    );
    assert_eq!(matches.get_one::<String>("mode"), None);

    // 3. PossibleValuesParser validates allowed choices and rejects invalid values
    let mode_matches = cmd
        .clone()
        .try_get_matches_from(vec!["testapp", "--mode", "fast", "input.txt"])
        .expect("fast is a valid mode");
    assert_eq!(
        mode_matches.get_one::<String>("mode").map(String::as_str),
        Some("fast")
    );

    let invalid_mode = cmd
        .clone()
        .try_get_matches_from(vec!["testapp", "--mode", "invalid", "input.txt"]);
    assert!(invalid_mode.is_err());
    assert_eq!(invalid_mode.unwrap_err().kind(), ErrorKind::InvalidValue);

    // 4. Missing required positional argument returns MissingRequiredArgument error
    let missing_input = cmd.clone().try_get_matches_from(vec!["testapp"]);
    assert!(missing_input.is_err());
    assert_eq!(
        missing_input.unwrap_err().kind(),
        ErrorKind::MissingRequiredArgument
    );

    // 5. Unknown argument returns UnknownArgument error
    let unknown_arg = cmd
        .clone()
        .try_get_matches_from(vec!["testapp", "--nonexistent", "input.txt"]);
    assert!(unknown_arg.is_err());
    assert_eq!(
        unknown_arg.unwrap_err().kind(),
        ErrorKind::UnknownArgument
    );

    // 6. Subcommands are recognized and dispatch sub-arguments correctly
    let subcmd_matches = cmd
        .clone()
        .try_get_matches_from(vec!["testapp", "run", "--dry-run"])
        .expect("subcommand run should parse");
    let (sub_name, sub_matches) = subcmd_matches.subcommand().unwrap();
    assert_eq!(sub_name, "run");
    assert!(sub_matches.get_flag("dry-run"));

    println!("All clap contract assertions passed successfully.");
}

Seeder d'origine

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