add parentheses when unboxing suggestion needed #132944
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r? @chenyukang rustbot has assigned @chenyukang. Use |
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| @@ -2869,6 +2861,19 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { | |||
| return None; | |||
| } | |||
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| if checked_ty.is_box() && self.is_need_parenthesize(expr) { | |||
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I presume due to the is_box(), the following code still leads to an invalid suggestion?
fn main() {
let x = std::rc::Rc::new(Some(1));
let test: Option<i32> = x as std::rc::Rc<Option<i32>>;
}I guess you can remove that box check?
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I guess you can remove that box check?
Thank you. Updated.
| @@ -2897,6 +2902,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { | |||
| false | |||
| } | |||
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| fn is_need_parenthesize(&self, expr: &hir::Expr<'_>) -> bool { | |||
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Suggested change
| fn is_need_parenthesize(&self, expr: &hir::Expr<'_>) -> bool { | |
| fn needs_parentheses(&self, expr: &hir::Expr<'_>) -> bool { |
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@bors r+ rollup |
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Rollup of 7 pull requests Successful merges: - rust-lang#132795 (Check `use<..>` in RPITIT for refinement) - rust-lang#132944 (add parentheses when unboxing suggestion needed) - rust-lang#132993 (Make rustc consider itself a stable compiler when `RUSTC_BOOTSTRAP=-1`) - rust-lang#133130 (`suggest_borrow_generic_arg`: instantiate clauses properly) - rust-lang#133133 (rustdoc-search: add standalone trailing `::` test) - rust-lang#133143 (Diagnostics for let mut in item context) - rust-lang#133147 (Fixup some test directives) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#132944 - linyihai:needing-parenthases-issue-132924, r=chenyukang add parentheses when unboxing suggestion needed This PR tried to `add parentheses when unboxing suggestion needed` Fixes rust-lang#132924
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This PR tried to
add parentheses when unboxing suggestion neededFixes #132924