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Github Improve diagnostics when closure doesn't meet trait bound by roxelo · Pul...
source link: https://github.com/rust-lang/rust/pull/80635
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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.
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