Improve diagnostics when closure doesn't meet trait bound #80635
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| for (i, proj) in place.projections.iter().enumerate() { | ||
| match proj.kind { | ||
| HirProjectionKind::Deref => { | ||
| curr_string = format!("*{}", curr_string); |
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Nit: you can use write! macro to append to strings more efficiently -- here is an example
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📌 Commit b498870 has been approved by `nikomatsakis`` |
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Oh, I guess bors saw my command. Well, I think it's fine as is actually so maybe I'll just leave it :) |
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@bors delegate+ Regardless, I'll make sure bors sees the delegate request. |
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✌️ @roxelo can now approve this pull request |
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…mbol, r=nikomatsakis` Improve diagnostics when closure doesn't meet trait bound Improves the diagnostics when closure doesn't meet trait bound by modifying `TypeckResuts::closure_kind_origins` such that `hir::Place` is used instead of `Symbol`. Using `hir::Place` to describe which capture influenced the decision of selecting a trait a closure satisfies to (Fn/FnMut/FnOnce, Copy) allows us to show precise path in the diagnostics when `capture_disjoint_field` feature is enabled. Closes rust-lang/project-rfc-2229/issues/21 r? `@nikomatsakis`
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…mbol, r=nikomatsakis` Improve diagnostics when closure doesn't meet trait bound Improves the diagnostics when closure doesn't meet trait bound by modifying `TypeckResuts::closure_kind_origins` such that `hir::Place` is used instead of `Symbol`. Using `hir::Place` to describe which capture influenced the decision of selecting a trait a closure satisfies to (Fn/FnMut/FnOnce, Copy) allows us to show precise path in the diagnostics when `capture_disjoint_field` feature is enabled. Closes rust-lang/project-rfc-2229/issues/21 r? ``@nikomatsakis``
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Rollup of 13 pull requests Successful merges: - rust-lang#79298 (correctly deal with late-bound lifetimes in anon consts) - rust-lang#80031 (resolve: Reject ambiguity built-in attr vs different built-in attr) - rust-lang#80201 (Add benchmark and fast path for BufReader::read_exact) - rust-lang#80635 (Improve diagnostics when closure doesn't meet trait bound) - rust-lang#80765 (resolve: Simplify collection of traits in scope) - rust-lang#80932 (Allow downloading LLVM on Windows and MacOS) - rust-lang#80983 (Remove is_dllimport_foreign_item definition from cg_ssa) - rust-lang#81064 (Support non-stage0 check) - rust-lang#81080 (Force vec![] to expression position only) - rust-lang#81082 (BTreeMap: clean up a few more comments) - rust-lang#81084 (Use Option::map instead of open-coding it) - rust-lang#81095 (Use Option::unwrap_or instead of open-coding it) - rust-lang#81107 (Add NonZeroUn::is_power_of_two) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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Jan 28, 2021
| } | ||
| } | ||
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| curr_string.to_string() |
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Why convert String back to String?
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It's not needed, not sure why I did it 😅
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Improves the diagnostics when closure doesn't meet trait bound by modifying
TypeckResuts::closure_kind_originssuch thathir::Placeis used instead ofSymbol. Usinghir::Placeto describe which capture influenced the decision of selecting a trait a closure satisfies to (Fn/FnMut/FnOnce, Copy) allows us to show precise path in the diagnostics whencapture_disjoint_fieldfeature is enabled.Closes rust-lang/project-rfc-2229/issues/21
r? @nikomatsakis