anstream 1.0.0

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

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[[bin]]
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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/anstream@1.0.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/anstream@1.0.0
Required runtime conditions:
  - ecosystem: golang
  - language: go
  - packageManager: go@1.26.6
  - runtime: go@1.26.6

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:sha256:7d9557879ac4e4866cd495779c0f47b42df5840bb3b29ef782982f39a0554903","contract":["AutoStream::always preserves ANSI escape codes in output","AutoStream::new with ColorChoice::Never strips ANSI escape codes from output","StripStream directly strips ANSI escape sequences from output"],"goal":"verify pkg:cargo/anstream@1.0.0","kind":"HOW","packages":["pkg:cargo/anstream@1.0.0"],"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/anstream@1.0.0"],"schemaVersion":1,"subject":"pkg:cargo/anstream@1.0.0","verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/anstream@1.0.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/anstream@1.0.0"
  ],
  "runtimeConditions": {
    "ecosystem": "golang",
    "language": "go",
    "packageManager": "go@1.26.6",
    "runtime": "go@1.26.6"
  }
}

//! Clean-room verification sample for anstream.

pub use anstream::*;

use anstream::{AutoStream, ColorChoice, StripStream};
use std::io::Write;

fn main() {
    // 1. AutoStream::always preserves ANSI escape codes in output
    let mut always_stream = AutoStream::always(Vec::new());
    write!(always_stream, "\x1b[31mRed text\x1b[0m").expect("write failed");
    let always_bytes = always_stream.into_inner();
    assert_eq!(always_bytes, b"\x1b[31mRed text\x1b[0m");

    // 2. AutoStream::new with ColorChoice::Never strips ANSI escape codes from output
    let mut never_stream = AutoStream::new(Vec::new(), ColorChoice::Never);
    write!(never_stream, "\x1b[31mRed text\x1b[0m").expect("write failed");
    let never_bytes = never_stream.into_inner();
    assert_eq!(never_bytes, b"Red text");

    // 3. StripStream directly strips ANSI escape sequences from output
    let mut strip_stream = StripStream::new(Vec::new());
    write!(strip_stream, "\x1b[1m\x1b[32mBold Green\x1b[0m").expect("write failed");
    let strip_bytes = strip_stream.into_inner();
    assert_eq!(strip_bytes, b"Bold Green");

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