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Some tracing helpers

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This commit is contained in:
Oli Scherer 2022-06-27 16:16:11 +00:00
parent 0c6918fe21
commit 12457f814c
1 changed files with 3 additions and 0 deletions
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3
compiler/rustc_mir_build/src/build/expr/as_place.rs
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@ -202,6 +202,7 @@ fn find_capture_matching_projections<'a, 'tcx>(
/// `PlaceBuilder` now starts from `PlaceBase::Local`.
///
/// Returns a Result with the error being the PlaceBuilder (`from_builder`) that was not found.
#[instrument(level = "trace", skip(cx))]
fn to_upvars_resolved_place_builder<'tcx>(
from_builder: PlaceBuilder<'tcx>,
cx: &Builder<'_, 'tcx>,
@ -270,12 +271,14 @@ fn to_upvars_resolved_place_builder<'tcx>(
// We used some of the projections to build the capture itself,
// now we apply the remaining to the upvar resolved place.
trace!(?capture.place, ?from_builder.projection);
let remaining_projections = strip_prefix(
capture.place.base_ty,
from_builder.projection,
&capture.place.projections,
);
upvar_resolved_place_builder.projection.extend(remaining_projections);
trace!(?upvar_resolved_place_builder);
Ok(upvar_resolved_place_builder)
}