wasi 0.11.1+wasi-snapshot-preview1: wasi::FD_STDOUT

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

[[package]]
name = "sample-wasi-fd-stdout"
version = "1.0.0"
dependencies = [
 "wasi",
]

[[package]]
name = "wasi"
version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"

[package]
name = "sample-wasi-fd-stdout"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
wasi = "=0.11.1"

[[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 wasi::FD_STDOUT in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1
Demonstrate these symbols/APIs:
  - wasi::FD_STDOUT

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:ba1f8fe9e558d00d54143397b1fa5032c17e68095ce45d93ccd74f765fd0eb2c","contract":["wasi::FD_STDOUT identifies standard output file descriptor with value 1","wasi::FD_STDOUT is distinct from standard input and standard error descriptors","wasi::FD_STDOUT has underlying type Fd matching 1u32"],"goal":"verify wasi::FD_STDOUT in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1","kind":"HOW","packages":["pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1"],"schemaVersion":1,"symbols":["wasi::FD_STDOUT"]},"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/wasi@0.11.1+wasi-snapshot-preview1"],"schemaVersion":1,"subject":"pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1","symbols":["wasi::FD_STDOUT"],"verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify wasi::FD_STDOUT in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1"
  ],
  "symbols": [
    "wasi::FD_STDOUT"
  ]
}

use wasi::{Fd, FD_STDERR, FD_STDIN, FD_STDOUT};

fn main() {
    // 1. wasi::FD_STDOUT identifies standard output file descriptor with value 1
    assert_eq!(FD_STDOUT, 1 as Fd);

    // 2. wasi::FD_STDOUT is distinct from standard input and standard error descriptors
    assert_ne!(FD_STDOUT, FD_STDIN);
    assert_ne!(FD_STDOUT, FD_STDERR);

    // 3. wasi::FD_STDOUT has underlying type Fd matching 1u32
    let stdout_fd: Fd = FD_STDOUT;
    assert_eq!(stdout_fd, 1u32);

    println!("All wasi::FD_STDOUT contract assertions passed successfully.");
}