frontend 0.4.0

rustc's frontend with no LLVM and no std: parsing through MIR, as a library
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

//! Queries that are independent from the main solver code.

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


// ---------------------------------------------------------------------------------------------
// 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.
// ---------------------------------------------------------------------------------------------
#[macro_use]
mod codegen;
mod coroutine_witnesses;
mod dropck_outlives;
mod evaluate_obligation;
mod implied_outlives_bounds;
mod normalize_erasing_regions;
mod normalize_projection_ty;
mod type_op;

use crate::rustc_middle::query::Providers;

pub fn provide(p: &mut Providers) {
    dropck_outlives::provide(p);
    evaluate_obligation::provide(p);
    implied_outlives_bounds::provide(p);
    normalize_projection_ty::provide(p);
    normalize_erasing_regions::provide(p);
    type_op::provide(p);
    p.codegen_select_candidate = codegen::codegen_select_candidate;
    p.coroutine_hidden_types = coroutine_witnesses::coroutine_hidden_types;
}