CodeSampleX

Exemplo

idna 1.1.0: idna::domain_to_ascii

Amostra verificada para cargo idna 1.1.0: idna::domain_to_ascii. O contrato rodou em rust 1 · linux alpine/x64 · docker e passou.

sha256:7fc4b99004057fa424bbbfe669013b4dcf0fde6c1b1857937cac566682b92256

Esta rede oferece uma coisa: uma amostra que compila. Ela a executou em um sandbox e guardou o recibo assinado. Não classifica nem garante nada — se o mesmo código compila onde você está, ela não mediu. Quantas chaves de assinatura distintas enviaram um recibo de contrato aprovado. Uma é só o autor; mais de uma significa que outra pessoa também o compilou. Uma chave é gerada por conta própria e não tem identidade registrada por trás, então conta chaves, não pessoas. MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência
Contrato assinado aprovado
Recibos de verificação
1
Chaves de assinatura que o compilaram
1
Ambiente declarado linux · alpine · musl x64 cargo

Ambientes das execuções de verificação

Ambiente Contrato Etapas Execução
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…		 2026-09-21

Caso

HOW
Objetivo
verify idna::domain_to_ascii in pkg:cargo/idna@1.1.0
Pacotes
Símbolos
  • idna::domain_to_ascii
Criado
2026-09-21T04:49:23Z

Contrato

  1. domain_to_ascii preserves standard ASCII domain names unchanged
  2. domain_to_ascii converts internationalized domain name with Unicode characters into Punycode ASCII representation
  3. domain_to_ascii correctly converts German domain with eszett into Punycode ASCII representation
  4. domain_to_ascii preserves existing valid Punycode encoded domain names
  5. domain_to_ascii returns an error on invalid domain with malformed Punycode labels

Arquivos

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

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

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_collections"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa68d21081c4a05d5a901a1c62add574c77048b6a1c67be3b50ce0b60d4ca513"
dependencies = [
 "displaydoc",
 "potential_utf",
 "utf8_iter",
 "yoke",
 "zerofrom",
 "zerovec",
]

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

[[package]]
name = "icu_normalizer"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12f9cf5f235641ed274641dd81c3f28d870e276763d0797aeeab72317b1c646f"
dependencies = [
 "icu_collections",
 "icu_normalizer_data",
 "icu_properties",
 "icu_provider",
 "smallvec",
 "zerovec",
]

[[package]]
name = "icu_normalizer_data"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1563da1ed3e0b3bf3d74c9b85917ac9c56464d2f57242270c09c9e752f8021a0"

[[package]]
name = "icu_properties"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7e7ca276ad3145661a65914e6daf131ca5120cd3dcee8f8f3214b8875184a148"
dependencies = [
 "displaydoc",
 "icu_collections",
 "icu_locale_core",
 "icu_properties_data",
 "icu_provider",
 "zerotrie",
 "zerovec",
]

[[package]]
name = "icu_properties_data"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e590f038c1464a96894fd6d10127e90a8be4509f56ff7ecef851b15cee0b7caa"

[[package]]
name = "icu_provider"
version = "2.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d27bbb9d3abbefac45d55f647c9de1d44aafcd1186eb91879afef17c396c3e73"
dependencies = [
 "displaydoc",
 "icu_locale_core",
 "writeable",
 "yoke",
 "zerofrom",
 "zerotrie",
 "zerovec",
]

[[package]]
name = "idna"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3b0875f23caa03898994f6ddc501886a45c7d3d62d04d2d90788d47be1b1e4de"
dependencies = [
 "idna_adapter",
 "smallvec",
 "utf8_iter",
]

[[package]]
name = "idna_adapter"
version = "1.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cb68373c0d6620ef8105e855e7745e18b0d00d3bdb07fb532e434244cdb9a714"
dependencies = [
 "icu_normalizer",
 "icu_properties",
]

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

[[package]]
name = "potential_utf"
version = "0.1.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d83eb9bc6d8e5cf568e7a1101d60ee05e81ed50ea106026f3d18deeb046d7661"
dependencies = [
 "zerovec",
]

[[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-idna"
version = "1.0.0"
dependencies = [
 "idna",
]

[[package]]
name = "smallvec"
version = "1.16.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ba467056f1b547ed52077911161fc86985becbc60e8e1857c8a144dab0def891"

[[package]]
name = "stable_deref_trait"
version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"

[[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 = "synstructure"
version = "0.14.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "901704edd0dfe137f1987838ee4f259e4e063c31371bdb423f7ae38ec6f77f02"
dependencies = [
 "proc-macro2",
 "quote",
 "syn",
]

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

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

[[package]]
name = "utf8_iter"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"

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

[[package]]
name = "yoke"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "709fe23a0424b6a435d82152b1bd3fdfb0833487d5fa90d05d42762a9891fef5"
dependencies = [
 "stable_deref_trait",
 "yoke-derive",
 "zerofrom",
]

[[package]]
name = "yoke-derive"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "33811428bee40dbceb6d545e95754741d17a6aef9a4849f0fd62e2ba4f412a78"
dependencies = [
 "proc-macro2",
 "quote",
 "syn",
 "synstructure",
]

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

[[package]]
name = "zerofrom-derive"
version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f75b4683f6c7f45248d4d64056a24298c6281e0993356d7d1b4a1a962ef10d4a"
dependencies = [
 "proc-macro2",
 "quote",
 "syn",
 "synstructure",
]

[[package]]
name = "zerotrie"
version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4ea269c3bd32f0a32c321907a2ae912ba6f4649bb0fc764a15627e99a7095a3f"
dependencies = [
 "displaydoc",
 "yoke",
 "zerofrom",
]

[[package]]
name = "zerovec"
version = "0.11.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bb0464e17806c1d976d5cba29399c7f08e516e279e2ba493f63123b5fca67dd8"
dependencies = [
 "yoke",
 "zerofrom",
 "zerovec-derive",
]

[[package]]
name = "zerovec-derive"
version = "0.11.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34df6fc39dbd26ddc9c10e6a2984476e13acce22e64e4487636ef494369225da"
dependencies = [
 "proc-macro2",
 "quote",
 "syn",
]
Cargo.toml
[package]
name = "sample-idna"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
idna = "=1.1.0"

[[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 idna::domain_to_ascii in pkg:cargo/idna@1.1.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/idna@1.1.0
Demonstrate these symbols/APIs:
  - idna::domain_to_ascii

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:sha256:0cae30dcf645585f39e651ccfdbbdb99f0b580c1305cc79685324fa166f4df50","contract":["domain_to_ascii preserves standard ASCII domain names unchanged","domain_to_ascii converts internationalized domain name with Unicode characters into Punycode ASCII representation","domain_to_ascii correctly converts German domain with eszett into Punycode ASCII representation","domain_to_ascii preserves existing valid Punycode encoded domain names","domain_to_ascii returns an error on invalid domain with malformed Punycode labels"],"goal":"verify idna::domain_to_ascii in pkg:cargo/idna@1.1.0","kind":"HOW","packages":["pkg:cargo/idna@1.1.0"],"schemaVersion":1,"symbols":["idna::domain_to_ascii"]},"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/idna@1.1.0"],"schemaVersion":1,"subject":"pkg:cargo/idna@1.1.0","symbols":["idna::domain_to_ascii"],"verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify idna::domain_to_ascii in pkg:cargo/idna@1.1.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/idna@1.1.0"
  ],
  "symbols": [
    "idna::domain_to_ascii"
  ]
}
src/lib.rs
//! Clean-room verification sample for idna.

pub use idna::*;
test/contract.rs
use idna::domain_to_ascii;

fn main() {
    // 1. domain_to_ascii preserves standard ASCII domain names unchanged
    let ascii = domain_to_ascii("example.com").expect("ascii domain");
    assert_eq!(ascii, "example.com");

    // 2. domain_to_ascii converts internationalized domain name with Unicode characters into Punycode ASCII representation
    let unicode = domain_to_ascii("bücher.example").expect("unicode domain");
    assert_eq!(unicode, "xn--bcher-kva.example");

    // 3. domain_to_ascii correctly converts German domain with eszett into Punycode ASCII representation
    let eszett = domain_to_ascii("faß.de").expect("eszett domain");
    assert_eq!(eszett, "xn--fa-hia.de");

    // 4. domain_to_ascii preserves existing valid Punycode encoded domain names
    let punycode = domain_to_ascii("xn--bcher-kva.example").expect("punycode domain");
    assert_eq!(punycode, "xn--bcher-kva.example");

    // 5. domain_to_ascii returns an error on invalid domain with malformed Punycode labels
    let err = domain_to_ascii("xn--???");
    assert!(err.is_err());

    println!("All idna::domain_to_ascii contract assertions passed successfully.");
}

Seeder de origem

anônimo