bjoernager/rust
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Auto merge of #108487 - cjgillot:no-typeck-mir, r=oli-obk

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Avoid invoking typeck from borrowck

This PR attempts to reduce direct dependencies between typeck and MIR-related queries. The goal is to have all the information transit either through THIR or through dedicated queries that avoid depending on the whole `TypeckResults`.

In a first commit, we store the type information that MIR building requires into THIR. This avoids edges between mir_built and typeck.

In the second and third commit, we wrap informations around closures (upvars, kind origin and user-provided signature) to avoid borrowck depending on typeck information.

There should be a single remaining borrowck -> typeck edge in the good path, due to inline consts.
This commit is contained in:
bors 2023-02-27 21:48:10 +00:00
commit 6290ae92b2
20 changed files with 223 additions and 207 deletions
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5
compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
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@ -901,10 +901,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
err: &mut Diagnostic,
) {
let tables = tcx.typeck(closure_local_def_id);
let closure_hir_id = tcx.hir().local_def_id_to_hir_id(closure_local_def_id);
if let Some((span, closure_kind_origin)) =
&tables.closure_kind_origins().get(closure_hir_id)
{
if let Some((span, closure_kind_origin)) = tcx.closure_kind_origin(closure_local_def_id) {
let reason = if let PlaceBase::Upvar(upvar_id) = closure_kind_origin.base {
let upvar = ty::place_to_string_for_capture(tcx, closure_kind_origin);
let root_hir_id = upvar_id.var_path.hir_id;