frontend 0.4.1

//! This crate defines the trait resolution method.
//!
//! - **Traits.** Trait resolution is implemented in the `traits` module.
//!
//! For more information about how rustc works, see the [rustc-dev-guide].
//!
//! [rustc-dev-guide]: https://rustc-dev-guide.rust-lang.org/
//!
//! # Note
//!
//! This API is completely unstable and subject to change.

// tidy-alphabetical-start
// tidy-alphabetical-end

// `#![no_std]`: these arrive with the standard prelude and name no path, so a `std::`
// search cannot see them - and a `#[derive]` can use them without the name appearing
// in this file at all, which is why they are not trimmed by inspection.
// Real std remains: `PathBuf` in four `error_reporting` files, the paths a diagnostic points at.

// ---------------------------------------------------------------------------------------------
// STD IS BANNED IN THIS CRATE.
//
// `#![no_std]` above is the ban and the compiler is the enforcer: without `extern crate std;`
// there is no `std` in the extern prelude, so any `std::` path fails to resolve and the build
// stops. Do not add that line back to make an error go away - the error is the point. Whatever
// needed `std` either has a `core`/`alloc` equivalent, belongs in `ekostd`, or is a
// dependency that has to be replaced.
//
// The prelude is the part a grep cannot see: `Vec`, `String`, `Box`, `format!`, `vec!`,
// `thread_local!` and `println!` name no path. Under `#![no_std]` they resolve through `alloc`
// and `eko` instead, which is why those imports appear at the top of every file here.
// ---------------------------------------------------------------------------------------------
use alloc::borrow::ToOwned;
use alloc::boxed::Box;
use alloc::format;
use alloc::string::{String, ToString};
use alloc::vec;
use alloc::vec::Vec;

pub mod diagnostics;
pub mod error_reporting;
pub mod infer;
pub mod opaque_types;
pub mod regions;
pub mod solve;
pub mod traits;