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Diffstat (limited to 'crates/hir-ty/src/mir/lower.rs')
| -rw-r--r-- | crates/hir-ty/src/mir/lower.rs | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/crates/hir-ty/src/mir/lower.rs b/crates/hir-ty/src/mir/lower.rs index 566204bb70..e5e8909481 100644 --- a/crates/hir-ty/src/mir/lower.rs +++ b/crates/hir-ty/src/mir/lower.rs @@ -1028,18 +1028,7 @@ impl<'ctx> MirLowerCtx<'ctx> { self.push_assignment(current, lhs_place, r_value, expr_id.into()); return Ok(Some(current)); } else { - let Some((lhs_place, current)) = - self.lower_expr_as_place(current, *lhs, false)? - else { - return Ok(None); - }; - let Some((rhs_op, current)) = - self.lower_expr_to_some_operand(*rhs, current)? - else { - return Ok(None); - }; - self.push_assignment(current, lhs_place, rhs_op.into(), expr_id.into()); - return Ok(Some(current)); + return self.lower_assignment(current, *lhs, *rhs, expr_id.into()); } } let Some((lhs_op, current)) = self.lower_expr_to_some_operand(*lhs, current)? @@ -1285,6 +1274,30 @@ impl<'ctx> MirLowerCtx<'ctx> { } } + fn lower_assignment( + &mut self, + current: BasicBlockId, + lhs: ExprId, + rhs: ExprId, + span: MirSpan, + ) -> Result<Option<BasicBlockId>> { + let Some((rhs_op, current)) = + self.lower_expr_to_some_operand(rhs, current)? + else { + return Ok(None); + }; + if matches!(&self.body.exprs[lhs], Expr::Underscore) { + return Ok(Some(current)); + } + let Some((lhs_place, current)) = + self.lower_expr_as_place(current, lhs, false)? + else { + return Ok(None); + }; + self.push_assignment(current, lhs_place, rhs_op.into(), span); + Ok(Some(current)) + } + fn placeholder_subst(&mut self) -> Substitution { let placeholder_subst = match self.owner.as_generic_def_id() { Some(it) => TyBuilder::placeholder_subst(self.db, it), |