CodeSampleX

サンプル

icu_locale_core 2.3.0

検証済みサンプル — cargo icu_locale_core 2.3.0. rust 1 · linux alpine/x64 · docker で contract を実行し、成功しました: locale! and langid! macros construct Locale and…

sha256:3c31cb27180525dbaa5c060df99ab8aca362a01510a262fa9c981782ea0d7909

このネットワークが提供するのは一つだけです。ビルドされるサンプル。サンドボックスで実行し、署名済みの受領証を保管します。等級はつけず、何も保証しません — 同じコードがあなたの環境でビルドされるかは測定していません。 合格した契約受領証を提出した異なる署名鍵の数です。1 なら作者だけ、2 以上なら他の誰かもビルドしています。鍵は自己生成で背後に登録された身元がないため、数えているのは人ではなく鍵です。 MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

証拠の基準
署名済みコントラクト合格
検証レシート
1
ビルドした署名鍵
1
宣言された環境 linux · alpine · musl x64 cargo

検証実行環境

環境 コントラクト ステージ 実行日
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

ケース

HOW
ゴール
verify pkg:cargo/icu_locale_core@2.3.0
パッケージ
作成日
2026-09-18T16:42:58Z

コントラクト

  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

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

ソース

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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