//! Raw API bindings to the WebAssembly System Interface (WASI) //! //! This crate provides Rust API bindings to WASI APIs. All WASI APIs are //! exported from this crate and provided with the appropriate type signatures. //! This crate is entirely procedurally generated from the `*.witx` files that //! describe the WASI API. //! //! # WASI API Version //! //! The WASI API is evolving over time. It is both gaining new features as well //! as tweaking the ABI of existing features. As a result it's important to //! understand what version of this crate you're using and how it relates to //! the WASI version of the spec. //! //! The WASI specification is organized into phases where there is a snapshot //! at any one point in time describing the current state of the specification. //! This crate implements a particular snapshot. You can find the snapshot //! version implemented in this crate in the build metadata of the crate //! version number. For example something like `0.9.0+wasi-snapshot-preview1` //! means that this crate's own personal version is 0.9.0 and it implements the //! `wasi-snapshot-preview1` snapshot. A major release of this crate (i.e. //! bumping the "0.9.0") is expected whenever the generated code changes //! or a new WASI snapshot is used. //! //! # Crate Features //! //! This crate supports one feature, `std`, which implements the standard //! `Error` trait for the exported [`Error`] type in this crate. This is //! enabled by default but can be disabled to make the library `no_std` //! compatible. #![no_std] mod error; mod lib_generated; pub use lib_generated::*; /// Special `Dircookie` value indicating the start of a directory. pub const DIRCOOKIE_START: Dircookie = 0; /// The "standard input" descriptor number. pub const FD_STDIN: Fd = 0; /// The "standard output" descriptor number. pub const FD_STDOUT: Fd = 1; /// The "standard error" descriptor number. pub const FD_STDERR: Fd = 2;