Suggest using a standalone doctest for non-local impl defs#126422
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Suggest using a standalone doctest for non-local impl defs#126422bors merged 2 commits intorust-lang:masterfrom
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Urgau
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Jun 13, 2024
| | | ||
| = note: `impl` may be usable in bounds, etc. from outside the expression, which might e.g. make something constructible that previously wasn't, because it's still on a publicly-visible type | ||
| = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` | ||
| = help: make this doc-test a standalone test with its own `fn main() { ... }` |
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This is the real difference, before it generated something like this:
help: move the `impl` block outside of this function `_doctest_main_src_lib_rs_3_0` and up 2 bodies
--> src/lib.rs:4:38
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4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_3_0() {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
6 | struct Local;
| ------------ may need to be moved as well
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lqd
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I wonder, would it be beneficial/possible to have a machine-applicable suggestion here? |
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Beneficial, yes. Possible, not currently, since when compiling doctests Footnotes
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(cc #126430 on that last failure) |
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@bors r+ rollup |
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…r=fmease Suggest using a standalone doctest for non-local impl defs This PR tweaks the lint output of the `non_local_definitions` lint to suggest using a standalone doctest instead of a moving the `impl` def to an impossible place as was already done with `macro_rules!` case in rust-lang#124568. Fixes rust-lang#126339 r? `@fmease`
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…llaumeGomez Rollup of 9 pull requests Successful merges: - rust-lang#123782 (Test that opaque types can't have themselves as a hidden type with incompatible lifetimes) - rust-lang#124580 (Suggest removing unused tuple fields if they are the last fields) - rust-lang#125852 (improve tip for inaccessible traits) - rust-lang#126422 (Suggest using a standalone doctest for non-local impl defs) - rust-lang#126427 (Rewrite `intrinsic-unreachable`, `sepcomp-cci-copies`, `sepcomp-inlining` and `sepcomp-separate` `run-make` tests to rmake.rs) - rust-lang#126493 (safe transmute: support non-ZST, variantful, uninhabited enums) - rust-lang#126572 (override user defined channel when using precompiled rustc) - rust-lang#126615 (Add `rustc-ice*` to `.gitignore`) - rust-lang#126632 (Replace `move||` with `move ||`) Failed merges: - rust-lang#126558 (hir_typeck: be more conservative in making "note caller chooses ty param" note) r? `@ghost` `@rustbot` modify labels: rollup
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…r=fmease Suggest using a standalone doctest for non-local impl defs This PR tweaks the lint output of the `non_local_definitions` lint to suggest using a standalone doctest instead of a moving the `impl` def to an impossible place as was already done with `macro_rules!` case in rust-lang#124568. Fixes rust-lang#126339 r? ``@fmease``
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Rollup of 10 pull requests Successful merges: - rust-lang#124135 (delegation: Implement glob delegation) - rust-lang#125078 (fix: break inside async closure has incorrect span for enclosing closure) - rust-lang#125293 (Place tail expression behind terminating scope) - rust-lang#126422 (Suggest using a standalone doctest for non-local impl defs) - rust-lang#126493 (safe transmute: support non-ZST, variantful, uninhabited enums) - rust-lang#126504 (Sync fuchsia test runner with clang test runner) - rust-lang#126558 (hir_typeck: be more conservative in making "note caller chooses ty param" note) - rust-lang#126586 (Add `@badboy` and `@BlackHoleFox` as Mac Catalyst maintainers) - rust-lang#126615 (Add `rustc-ice*` to `.gitignore`) - rust-lang#126632 (Replace `move||` with `move ||`) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#126422 - Urgau:doctest-impl-non-local-def, r=fmease Suggest using a standalone doctest for non-local impl defs This PR tweaks the lint output of the `non_local_definitions` lint to suggest using a standalone doctest instead of a moving the `impl` def to an impossible place as was already done with `macro_rules!` case in rust-lang#124568. Fixes rust-lang#126339 r? ```@fmease```
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This PR tweaks the lint output of the
non_local_definitionslint to suggest using a standalone doctest instead of a moving theimpldef to an impossible place as was already done withmacro_rules!case in #124568.Fixes #126339
r? @fmease