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Use map_or instead of open-coding it #86407

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Merged
merged 1 commit into from
Jun 19, 2021
Merged

Use map_or instead of open-coding it #86407

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9 changes: 3 additions & 6 deletions compiler/rustc_mir/src/transform/const_prop.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1205,12 +1205,9 @@ impl<'mir, 'tcx> MutVisitor<'tcx> for ConstPropagator<'mir, 'tcx> {
let mut eval_to_int = |op| {
// This can be `None` if the lhs wasn't const propagated and we just
// triggered the assert on the value of the rhs.
match self.eval_operand(op, source_info) {
Some(op) => DbgVal::Val(
self.ecx.read_immediate(&op).unwrap().to_const_int(),
),
None => DbgVal::Underscore,
}
self.eval_operand(op, source_info).map_or(DbgVal::Underscore, |op| {
DbgVal::Val(self.ecx.read_immediate(&op).unwrap().to_const_int())
})
};
let msg = match msg {
AssertKind::DivisionByZero(op) => {
Expand Down