Suggest unwrap_or_else when a closure is given #102441
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May need more work to expand to suggest |
chenyukang
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Sep 28, 2022
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☔ The latest upstream changes (presumably #102545) made this pull request unmergeable. Please resolve the merge conflicts. |
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… to unwrap_or instead of suggesting calling it
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| err: &mut Diagnostic, | ||
| expr: &hir::Expr<'_>, | ||
| found: Ty<'tcx>, | ||
| can_satisfy: impl FnOnce(Ty<'tcx>) -> bool, |
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This doesn't need to be an argument. Can you inline the can_coerce call here by passing in expected: Ty<'tcx>?
| .., | ||
| ) = call_expr.kind | ||
| { | ||
| let self_ty = self.typeck_results.borrow().expr_ty(self_expr); |
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I think there is an expr_ty_opt version of this that doesn't ICE if the node is missing a type If so, then please use that, just in case.
| let fn_ty = self.tcx.type_of(pick.item.def_id) && | ||
| let fn_sig = fn_ty.fn_sig(self.tcx) && | ||
| let fn_args = fn_sig.skip_binder().inputs() && | ||
| fn_args.len() == args.len() +1 { |
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Suggested change
| fn_args.len() == args.len() +1 { | |
| fn_args.len() == args.len() + 1 { |
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| let fn_ty = self.tcx.type_of(pick.item.def_id) && | ||
| let fn_sig = fn_ty.fn_sig(self.tcx) && |
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| let fn_ty = self.tcx.type_of(pick.item.def_id) && | |
| let fn_sig = fn_ty.fn_sig(self.tcx) && | |
| let fn_sig = self.tcx.fn_sig(pick.item.def_id) && |
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Few more nits |
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Fixed, thanks! |
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Hm, this suggestion might have some false positives still, but this is probably ok... @bors r+ |
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#102441 (Suggest unwrap_or_else when a closure is given) - rust-lang#102547 (Migrate CSS theme for search results) - rust-lang#102567 (Delay evaluating lint primary message until after it would be suppressed) - rust-lang#102624 (rustdoc: remove font family CSS on `.rustdoc-toggle summary::before`) - rust-lang#102628 (Change the parameter name of From::from to `value`) - rust-lang#102637 (Ignore fuchsia on two compiler tests) - rust-lang#102639 (Improve spans when splitting multi-char operator tokens for proc macros.) Failed merges: - rust-lang#102496 (Suggest `.into()` when all other coercion suggestions fail) r? `@ghost` `@rustbot` modify labels: rollup
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Fixes #102320
r? @compiler-errors