Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Validate removal of AscribeUserType, FakeRead, and Shallow borrow #76548

Merged
merged 1 commit into from
Sep 10, 2020
Merged

Validate removal of AscribeUserType, FakeRead, and Shallow borrow #76548

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
28 changes: 26 additions & 2 deletions compiler/rustc_mir/src/transform/validate.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,8 @@ use super::{MirPass, MirSource};
use rustc_middle::mir::visit::Visitor;
use rustc_middle::{
mir::{
AggregateKind, BasicBlock, Body, Location, MirPhase, Operand, Rvalue, Statement,
StatementKind, Terminator, TerminatorKind,
AggregateKind, BasicBlock, Body, BorrowKind, Location, MirPhase, Operand, Rvalue,
Statement, StatementKind, Terminator, TerminatorKind,
},
ty::{
self,
Expand Down Expand Up @@ -274,9 +274,33 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
)
}
}
Rvalue::Ref(_, BorrowKind::Shallow, _) => {
if self.mir_phase > MirPhase::DropLowering {
self.fail(
location,
"`Assign` statement with a `Shallow` borrow should have been removed after drop lowering phase",
);
}
}
_ => {}
}
}
StatementKind::AscribeUserType(..) => {
if self.mir_phase > MirPhase::DropLowering {
self.fail(
location,
"`AscribeUserType` should have been removed after drop lowering phase",
);
}
}
StatementKind::FakeRead(..) => {
if self.mir_phase > MirPhase::DropLowering {
self.fail(
location,
"`FakeRead` should have been removed after drop lowering phase",
);
}
}
_ => {}
}
}
Expand Down