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Rollup merge of #89615 - willcrichton:fix-get-body-with-borrowck-facts, r=oli-obk

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Add InferCtxt::with_opaque_type_inference to get_body_with_borrowck_facts

`mir_borrowck` uses `with_opaque_type_inference` before calling `do_mir_borrowck`: 0eabf25b90/compiler/rustc_borrowck/src/lib.rs (L132)

However `get_body_with_borrowck_facts` does not. Therefore I get an ICE eg when calling this function on the bodies of an async function as described here: https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/.E2.9C.94.20ICE.20when.20using.20get_body_with_borrowck_facts.20with.20async

This change fixes that bug.

r? `@nikomatsakis`
This commit is contained in:
Guillaume Gomez 2021-10-07 16:24:54 +02:00 committed by GitHub
commit 0fbb011eb4
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2
compiler/rustc_borrowck/src/consumers.rs
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@ -31,7 +31,7 @@ pub fn get_body_with_borrowck_facts<'tcx>(
def: ty::WithOptConstParam<LocalDefId>,
) -> BodyWithBorrowckFacts<'tcx> {
let (input_body, promoted) = tcx.mir_promoted(def);
tcx.infer_ctxt().enter(|infcx| {
tcx.infer_ctxt().with_opaque_type_inference(def.did).enter(|infcx| {
let input_body: &Body<'_> = &input_body.borrow();
let promoted: &IndexVec<_, _> = &promoted.borrow();
*super::do_mir_borrowck(&infcx, input_body, promoted, true).1.unwrap()