bytes 1.12.1

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

[[package]]
name = "bytes"
version = "1.12.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"

[[package]]
name = "sample-bytes"
version = "1.0.0"
dependencies = [
 "bytes",
]

[package]
name = "sample-bytes"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
bytes = "=1.12.1"

[[bin]]
name = "contract"
path = "test/contract.rs"

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/bytes@1.12.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/bytes@1.12.1

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.

{"case":{"caseId":"case:sha256:45b551d25a3b5b8b4e5c58a144e627ed825a31d7069b21f51f20e249b8e9b42c","contract":["Bytes supports zero-copy slicing and cloning","BytesMut supports appending, splitting and freezing into immutable Bytes","Buf and BufMut traits allow reading and writing typed binary primitives"],"goal":"verify pkg:cargo/bytes@1.12.1","kind":"HOW","packages":["pkg:cargo/bytes@1.12.1"],"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/bytes@1.12.1"],"schemaVersion":1,"subject":"pkg:cargo/bytes@1.12.1","verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/bytes@1.12.1",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/bytes@1.12.1"
  ]
}

//! Clean-room verification sample for bytes.

pub use bytes::*;

use bytes::{Buf, BufMut, Bytes, BytesMut};

fn main() {
    // 1. Bytes supports zero-copy slicing and cloning
    let data = Bytes::from_static(b"hello world");
    let slice1 = data.slice(0..5);
    let slice2 = data.slice(6..11);
    assert_eq!(&slice1[..], b"hello");
    assert_eq!(&slice2[..], b"world");
    let cloned = data.clone();
    assert_eq!(data, cloned);

    // 2. BytesMut supports appending, splitting and freezing into immutable Bytes
    let mut buf = BytesMut::with_capacity(32);
    buf.put_slice(b"rust bytes");
    assert_eq!(&buf[..], b"rust bytes");
    let part = buf.split_to(4);
    assert_eq!(&part[..], b"rust");
    assert_eq!(&buf[..], b" bytes");
    let frozen = buf.freeze();
    assert_eq!(&frozen[..], b" bytes");

    // 3. Buf and BufMut traits allow reading and writing typed binary primitives
    let mut stream = BytesMut::new();
    stream.put_u32(0x12345678);
    stream.put_i16(-100);
    stream.put_u8(0xFF);
    let mut reader = stream.freeze();
    assert_eq!(reader.get_u32(), 0x12345678);
    assert_eq!(reader.get_i16(), -100);
    assert_eq!(reader.get_u8(), 0xFF);
    assert_eq!(reader.remaining(), 0);

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