CodeSampleX

Exemple

icu_locale_core 2.3.0

Échantillon vérifié pour cargo icu_locale_core 2.3.0. Le contrat s'est exécuté sur rust 1 · linux alpine/x64 · docker et a réussi.

sha256:3c31cb27180525dbaa5c060df99ab8aca362a01510a262fa9c981782ea0d7909

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…		 2026-09-19

Cas

HOW
Objectif
verify pkg:cargo/icu_locale_core@2.3.0
Paquets
Créé
2026-09-18T16:42:58Z

Contrat

  1. locale! and langid! macros construct Locale and LanguageIdentifier at compile time
  2. Locale and LanguageIdentifier parse valid BCP 47 strings and reject malformed input
  3. Subtags can be parsed, constructed with macros, and compared
  4. Locale supports modifying subtag components and formatting back to BCP 47 string
  5. Locale parses and normalizes unicode extensions

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 = "displaydoc"
version = "0.2.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c6232dd377dcc64799954cbd3a9bb882e9cdc1308ccd87b1c098f1fb2eaf82a8"
dependencies = [
 "proc-macro2",
 "quote",
 "syn",
]

[[package]]
name = "icu_locale_core"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d56e28588da92eee5c3201a6eff33fabdd49b62269c8938d4ff050ce4d900deb"
dependencies = [
 "displaydoc",
 "litemap",
 "serde",
 "tinystr",
 "writeable",
]

[[package]]
name = "litemap"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "47d9d19d1d6efa0109d2f65ff4c85cddd50bd572e5a00127ab10987290bcefae"

[[package]]
name = "proc-macro2"
version = "1.0.107"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "985e7ec9bb745e6ce6535b544d84d6cd6f7ad8bd711c398938ae983b91a766d9"
dependencies = [
 "unicode-ident",
]

[[package]]
name = "quote"
version = "1.0.47"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1fbf4db142a473a8d80c26bbf18454ed458bf8d26c8219c331daecfdbd079001"
dependencies = [
 "proc-macro2",
]

[[package]]
name = "sample-icu-locale-core"
version = "1.0.0"
dependencies = [
 "icu_locale_core",
]

[[package]]
name = "serde"
version = "1.0.229"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4148590afebada386688f18773da617792bf2ef03ffc1e4cbd2b1d45b023e0ba"
dependencies = [
 "serde_core",
 "serde_derive",
]

[[package]]
name = "serde_core"
version = "1.0.229"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "67dca2c9c51e58a4791a4b1ed58308b39c64224d349a935ab5039aa360942a48"
dependencies = [
 "serde_derive",
]

[[package]]
name = "serde_derive"
version = "1.0.229"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e7a5d71263a5a7d47b41f6b3f06ba276f10cc18b0931f1799f710578e2309348"
dependencies = [
 "proc-macro2",
 "quote",
 "syn",
]

[[package]]
name = "syn"
version = "3.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8593e8e72159ed2257d083c7a454a85cbf854f37a0966d8d483aff8c8a3ebcee"
dependencies = [
 "proc-macro2",
 "quote",
 "unicode-ident",
]

[[package]]
name = "tinystr"
version = "0.8.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b1e27c91459209c2986af3dcf603a5a74a4368754ce37414f59acc971167f643"
dependencies = [
 "displaydoc",
 "serde_core",
 "zerovec",
]

[[package]]
name = "unicode-ident"
version = "1.0.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d245f478577f809a851594d02313b640fb437e0bb33866753cff937863096954"

[[package]]
name = "writeable"
version = "0.6.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3ad82d2a33cdc9674dc7465672f271e096168fcdbe0f799d9e6db8c5892679dc"

[[package]]
name = "zerofrom"
version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ec05a11813ea801ff6d75110ad09cd0824ddba17dfe17128ea0d5f68e6c5272"

[[package]]
name = "zerovec"
version = "0.11.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bb0464e17806c1d976d5cba29399c7f08e516e279e2ba493f63123b5fca67dd8"
dependencies = [
 "serde",
 "zerofrom",
]
Cargo.toml
[package]
name = "sample-icu-locale-core"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
icu_locale_core = { version = "=2.3.0", features = ["alloc"] }

[[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_locale_core@2.3.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/icu_locale_core@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:sha256:69967aca1e32d6be09a870354682454b491f75a9c536e279394875654f4648dc","contract":["locale! and langid! macros construct Locale and LanguageIdentifier at compile time","Locale and LanguageIdentifier parse valid BCP 47 strings and reject malformed input","Subtags can be parsed, constructed with macros, and compared","Locale supports modifying subtag components and formatting back to BCP 47 string","Locale parses and normalizes unicode extensions"],"goal":"verify pkg:cargo/icu_locale_core@2.3.0","kind":"HOW","packages":["pkg:cargo/icu_locale_core@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_locale_core@2.3.0"],"schemaVersion":1,"subject":"pkg:cargo/icu_locale_core@2.3.0","verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/icu_locale_core@2.3.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/icu_locale_core@2.3.0"
  ]
}
src/lib.rs
//! Clean-room verification sample for icu_locale_core.

pub use icu_locale_core::*;
test/contract.rs
use icu_locale_core::{langid, locale, Locale, LanguageIdentifier, ParseError};
use icu_locale_core::subtags::{language, region, script, variant, Language, Region, Script, Variant};

fn main() {
    // 1. locale! and langid! macros construct Locale and LanguageIdentifier at compile time
    let loc: Locale = locale!("en-US");
    assert_eq!(loc.id.language, language!("en"));
    assert_eq!(loc.id.region, Some(region!("US")));

    let lid: LanguageIdentifier = langid!("zh-Hans-CN");
    assert_eq!(lid.language, language!("zh"));
    assert_eq!(lid.script, Some(script!("Hans")));
    assert_eq!(lid.region, Some(region!("CN")));

    // 2. Locale and LanguageIdentifier parse valid BCP 47 strings and reject malformed input
    let parsed_loc: Locale = "ja-JP".parse().expect("valid locale");
    assert_eq!(parsed_loc.id.language, language!("ja"));
    assert_eq!(parsed_loc.id.region, Some(region!("JP")));

    let parsed_lid = LanguageIdentifier::try_from_str("fr-CA").expect("valid langid");
    assert_eq!(parsed_lid.language, language!("fr"));
    assert_eq!(parsed_lid.region, Some(region!("CA")));

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

    // 3. Subtags can be parsed, constructed with macros, and compared
    let lang: Language = language!("de");
    let reg: Region = "AT".parse().expect("valid region");
    let scr: Script = script!("Latn");
    let var: Variant = variant!("macos");
    assert_eq!(lang.as_str(), "de");
    assert_eq!(reg.as_str(), "AT");
    assert_eq!(scr.as_str(), "Latn");
    assert_eq!(var.as_str(), "macos");

    // 4. Modifying components of a Locale and formatting to string
    let mut modified_loc = locale!("en-US");
    modified_loc.id.region = Some(region!("GB"));
    assert_eq!(modified_loc.to_string(), "en-GB");
    assert_eq!(modified_loc, locale!("en-GB"));

    // 5. Locale parses and normalizes unicode extensions
    let ext_loc: Locale = "en-US-u-ca-hebrew".parse().expect("valid locale with extension");
    assert_eq!(ext_loc.id.language, language!("en"));
    assert_eq!(ext_loc.id.region, Some(region!("US")));
    assert!(ext_loc.normalizing_eq("EN-us-U-CA-Hebrew"));

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

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