CodeSampleX

Exemple

icu 2.3.0

Échantillon vérifié pour cargo icu 2.3.0. Le contrat s'est exécuté sur rust 1 · linux alpine/x64 · docker et a réussi : Date::try_new_iso constructs ISO…

sha256:9b1820ab5ac5d874b4c3193d587ed4bdec089d19fbf3f89b9f965124b4816d26

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…		 2026-10-09

Cas

HOW
Objectif
verify pkg:cargo/icu@2.3.0
Paquets
Créé
2026-10-09T04:55:16Z

Contrat

  1. Date::try_new_iso constructs ISO calendar dates and computes weekdays and days in month
  2. Locale parses valid BCP-47 identifiers and extracts language and region subtags
  3. LocaleExpander maximizes language identifiers using CLDR data
  4. CaseMapper converts Unicode strings to uppercase and lowercase

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

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Cargo.toml
[package]
name = "sample-icu"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
icu = "=2.3.0"

[[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/icu@2.3.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/icu@2.3.0

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:sha256:65eafb7568b7bc8aa11eefa79dbeff935eb928f66a39921a2960d412b44a0cc8","contract":["Date::try_new_iso constructs ISO calendar dates and computes weekdays and days in month","Locale parses valid BCP-47 identifiers and extracts language and region subtags","LocaleExpander maximizes language identifiers using CLDR data","CaseMapper converts Unicode strings to uppercase and lowercase"],"goal":"verify pkg:cargo/icu@2.3.0","kind":"HOW","packages":["pkg:cargo/icu@2.3.0"],"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/icu@2.3.0"],"schemaVersion":1,"subject":"pkg:cargo/icu@2.3.0","verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/icu@2.3.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/icu@2.3.0"
  ]
}
src/lib.rs
//! Clean-room verification sample for icu.

pub use icu::*;
test/contract.rs
use icu::calendar::{types::Weekday, Date};
use icu::casemap::CaseMapper;
use icu::locale::subtags::{language, region};
use icu::locale::{langid, locale, Locale, LocaleExpander, TransformResult};

fn main() {
    // 1. Date::try_new_iso constructs ISO calendar dates and computes weekdays and days in month
    let date_iso = Date::try_new_iso(1992, 9, 2).expect("initialize ISO date");
    assert_eq!(date_iso.weekday(), Weekday::Wednesday);
    assert_eq!(date_iso.era_year().year, 1992);
    assert_eq!(date_iso.month().ordinal, 9);
    assert_eq!(date_iso.day_of_month().0, 2);
    assert_eq!(date_iso.days_in_year(), 366);
    assert_eq!(date_iso.days_in_month(), 30);

    // 2. Locale parses valid BCP-47 identifiers and extracts language and region subtags
    let loc: Locale = "en-US".parse().expect("valid locale");
    assert_eq!(loc.id.language, language!("en"));
    assert_eq!(loc.id.region, Some(region!("US")));

    let invalid: Result<Locale, _> = "invalid_subtag_123456789".parse();
    assert!(invalid.is_err());

    // 3. LocaleExpander maximizes language identifiers using CLDR data
    let lc = LocaleExpander::new_common();
    let mut zh_locale = locale!("zh-CN");
    assert_eq!(lc.maximize(&mut zh_locale.id), TransformResult::Modified);
    assert_eq!(zh_locale, locale!("zh-Hans-CN"));

    // 4. CaseMapper converts Unicode strings to uppercase and lowercase
    let cm = CaseMapper::new();
    assert_eq!(
        cm.uppercase_to_string("hello world", &langid!("und")),
        "HELLO WORLD"
    );
    assert_eq!(
        cm.lowercase_to_string("HELLO WORLD", &langid!("und")),
        "hello world"
    );

    println!("All pkg:cargo/icu@2.3.0 contract assertions passed successfully.");
}

Seeder d'origine

anonyme