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//! Platform-specific extensions to `std` for WASI. //! //! Provides access to platform-level information on WASI, and exposes //! WASI-specific functions that would otherwise be inappropriate as //! part of the core `std` library. //! //! It exposes more ways to deal with platform-specific strings (`OsStr`, //! `OsString`), allows to set permissions more granularly, extract low-level //! file descriptors from files and sockets, and has platform-specific helpers //! for spawning processes. //! //! # Examples //! //! ```no_run //! use std::fs::File; //! use std::os::wasi::prelude::*; //! //! fn main() -> std::io::Result<()> { //! let f = File::create("foo.txt")?; //! let fd = f.as_raw_fd(); //! //! // use fd with native WASI bindings //! //! Ok(()) //! } //! ``` #![deny(unsafe_op_in_unsafe_fn)] #![doc(cfg(target_os = "wasi"))] pub mod ffi; pub mod fs; pub mod io; /// A prelude for conveniently writing platform-specific code. /// /// Includes all extension traits, and some important type definitions. #[stable(feature = "rust1", since = "1.0.0")] pub mod prelude { #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")] pub use super::ffi::{OsStrExt, OsStringExt}; #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")] pub use super::fs::FileTypeExt; #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")] pub use super::fs::{DirEntryExt, FileExt, MetadataExt, OpenOptionsExt}; #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")] pub use super::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd}; }