39e57e3e9a
* Migrate back to `std::` stylistically This commit moves away from idioms such as `alloc::` and `core::` as imports of standard data structures and types. Instead it migrates all crates to uniformly use `std::` for importing standard data structures and types. This also removes the `std` and `core` features from all crates to and removes any conditional checking for `feature = "std"` All of this support was previously added in #407 in an effort to make wasmtime/cranelift "`no_std` compatible". Unfortunately though this change comes at a cost: * The usage of `alloc` and `core` isn't idiomatic. Especially trying to dual between types like `HashMap` from `std` as well as from `hashbrown` causes imports to be surprising in some cases. * Unfortunately there was no CI check that crates were `no_std`, so none of them actually were. Many crates still imported from `std` or depended on crates that used `std`. It's important to note, however, that **this does not mean that wasmtime will not run in embedded environments**. The style of the code today and idioms aren't ready in Rust to support this degree of multiplexing and makes it somewhat difficult to keep up with the style of `wasmtime`. Instead it's intended that embedded runtime support will be added as necessary. Currently only `std` is necessary to build `wasmtime`, and platforms that natively need to execute `wasmtime` will need to use a Rust target that supports `std`. Note though that not all of `std` needs to be supported, but instead much of it could be configured off to return errors, and `wasmtime` would be configured to gracefully handle errors. The goal of this PR is to move `wasmtime` back to idiomatic usage of features/`std`/imports/etc and help development in the short-term. Long-term when platform concerns arise (if any) they can be addressed by moving back to `no_std` crates (but fixing the issues mentioned above) or ensuring that the target in Rust has `std` available. * Start filling out platform support doc
39 lines
921 B
Rust
39 lines
921 B
Rust
//! Object-file writing library using the wasmtime environment.
|
|
|
|
#![deny(
|
|
missing_docs,
|
|
trivial_numeric_casts,
|
|
unused_extern_crates,
|
|
unstable_features
|
|
)]
|
|
#![warn(unused_import_braces)]
|
|
#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
|
|
#![cfg_attr(
|
|
feature = "cargo-clippy",
|
|
allow(clippy::new_without_default, clippy::new_without_default_derive)
|
|
)]
|
|
#![cfg_attr(
|
|
feature = "cargo-clippy",
|
|
warn(
|
|
clippy::float_arithmetic,
|
|
clippy::mut_mut,
|
|
clippy::nonminimal_bool,
|
|
clippy::option_map_unwrap_or,
|
|
clippy::option_map_unwrap_or_else,
|
|
clippy::print_stdout,
|
|
clippy::unicode_not_nfc,
|
|
clippy::use_self
|
|
)
|
|
)]
|
|
|
|
mod context;
|
|
mod data_segment;
|
|
mod function;
|
|
mod module;
|
|
mod table;
|
|
|
|
pub use crate::module::emit_module;
|
|
|
|
/// Version number of this crate.
|
|
pub const VERSION: &str = env!("CARGO_PKG_VERSION");
|