Beispiel

clap 4.6.7: clap::Parser

Verifiziertes Beispiel für cargo clap 4.6.7: clap::Parser. Der Vertrag lief auf rust 1 · linux alpine/x64 · docker und bestand.

sha256:34fc966a9d0c866ee23545c8ef8eea671bee496ba7bba048e26ea7fb5ae09476

MIT-0

Ausführungsbelege

Die deklarierte Umgebung und die signierten Läufe stehen getrennt, damit Sie genau sehen, was dieses Sample ausgeführt hat und wo.

Beleggrundlage: Signierter Vertrag bestanden
Verifizierungsbelege: 1
Signaturschlüssel, die es gebaut haben: 1

Deklarierte Umgebung linux x64 cargo

Umgebungen der Verifizierungsläufe

Umgebung	Contract	Stufen	Lauf
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

Fall

HOW

Ziel: verify clap::Parser in pkg:cargo/clap@4.6.7
Pakete: clap 4.6.7
Symbole: clap::Parser
Erstellt: 2026-10-22T16:21:14Z

Contract

Deriving clap::Parser on a struct parses long and short arguments via Parser::parse_from
Default field values via default_value_t and boolean flags work when optional flags are omitted
Parser::try_parse_from returns Err when a required argument is missing

Dateien

Cargo.lock
Cargo.toml
PROMPT.md
csx.json
spec.json
src/main.rs

Quellartefakt herunterladen (tar.gz)

Quelltext

Cargo.lock

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

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name = "anstream"
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dependencies = [
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 "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]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "52ce7f38b242319f7cabaa6813055467063ecdc9d355bbb4ce0c68908cd8130e"
dependencies = [
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[[package]]
name = "anstyle-query"
version = "1.1.5"
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dependencies = [
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checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
dependencies = [
 "anstyle",
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 "windows-sys",
]

[[package]]
name = "clap"
version = "4.6.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "aa8876b300ab35ba921adea3dfd70157a46249b33f95c9084ae5709785478946"
dependencies = [
 "clap_builder",
 "clap_derive",
]

[[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_derive"
version = "4.6.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f9c751b79415d4e559e3d1fcf128e09e720eb673a06d26cf6f392d37d75b66e0"
dependencies = [
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 "proc-macro2",
 "quote",
 "syn",
]

[[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 = "heck"
version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"

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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 = "proc-macro2"
version = "1.0.107"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "985e7ec9bb745e6ce6535b544d84d6cd6f7ad8bd711c398938ae983b91a766d9"
dependencies = [
 "unicode-ident",
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[[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-clap-parser"
version = "0.1.0"
dependencies = [
 "clap",
]

[[package]]
name = "strsim"
version = "0.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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 "quote",
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]

[[package]]
name = "unicode-ident"
version = "1.0.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2c754d6c33795a1c324727428e5a7dedb5b06195f9890bdbcba760d3e246563"

[[package]]
name = "utf8parse"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"

[[package]]
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checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"

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dependencies = [
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Cargo.toml

[package]
name = "sample-clap-parser"
version = "0.1.0"
edition = "2021"
publish = false

[dependencies]
clap = { version = "=4.6.7", features = ["derive"] }

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 clap::Parser in pkg:cargo/clap@4.6.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/clap@4.6.7
Demonstrate these symbols/APIs:
  - clap::Parser

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:c4fc08aab678adabc3b99ca114bd499f73882658e3867c83a363cb1ffe4d2995","contract":["Deriving clap::Parser on a struct parses long and short arguments via Parser::parse_from","Default field values via default_value_t and boolean flags work when optional flags are omitted","Parser::try_parse_from returns Err when a required argument is missing"],"goal":"verify clap::Parser in pkg:cargo/clap@4.6.7","kind":"HOW","packages":["pkg:cargo/clap@4.6.7"],"schemaVersion":1,"symbols":["clap::Parser"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","ecosystem":"cargo","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","symbols":["clap::Parser"],"verifierAdapter":"cargo@1"}

spec.json

{
  "schemaVersion": 1,
  "goal": "verify clap::Parser in pkg:cargo/clap@4.6.7",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/clap@4.6.7"
  ],
  "symbols": [
    "clap::Parser"
  ]
}

src/main.rs

use clap::Parser;

#[derive(Parser, Debug, PartialEq, Eq)]
#[command(name = "app", disable_help_flag = false)]
struct Cli {
    #[arg(short, long)]
    name: String,

    #[arg(short, long, default_value_t = 1)]
    count: u32,

    #[arg(long)]
    verbose: bool,
}

fn main() {
    let parsed = Cli::parse_from(["app", "--name", "world", "--count", "3", "--verbose"]);
    assert_eq!(
        parsed,
        Cli {
            name: "world".to_string(),
            count: 3,
            verbose: true,
        }
    );

    let defaults = Cli::try_parse_from(["app", "-n", "guest"]).expect("valid args should parse");
    assert_eq!(defaults.name, "guest");
    assert_eq!(defaults.count, 1);
    assert!(!defaults.verbose);

    let missing_required = Cli::try_parse_from(["app"]);
    assert!(missing_required.is_err(), "missing required --name must fail");
}

Ursprungs-Seeder

anonym