Added doc about behavior of extend on HashMap #65048
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It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @KodrAus (or someone else) soon. If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes. Please see the contribution instructions for more information. |
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@bors r+ rollup |
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tmandry
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Oct 11, 2019
Added doc about behavior of extend on HashMap It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.
tmandry
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Oct 11, 2019
Added doc about behavior of extend on HashMap It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.
tmandry
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Oct 11, 2019
Rollup of 16 pull requests Successful merges: - rust-lang#64337 (libstd: Fix typos in doc) - rust-lang#64986 (Function pointers as const generic arguments) - rust-lang#65048 (Added doc about behavior of extend on HashMap) - rust-lang#65191 (Add some regression tests) - rust-lang#65200 (Add ?Sized bound to a supertrait listing in E0038 error documentation) - rust-lang#65205 (Add long error explanation for E0568) - rust-lang#65240 (self-profiling: Add events for metadata loading (plus a small dep-tracking optimization)) - rust-lang#65248 (Suggest `if let` on `let` refutable binding) - rust-lang#65252 (expand: Simplify expansion of derives) - rust-lang#65263 (Deduplicate is_{freeze,copy,sized}_raw) - rust-lang#65265 (Cleanup librustc mir err codes) - rust-lang#65266 (Mark Path::join as must_use) - rust-lang#65276 (Don't cc rust-lang/compiler for toolstate changes) - rust-lang#65277 (Query generator kind for error reporting) - rust-lang#65283 (stability: Do not use `buffer_lint` after lowering to HIR) - rust-lang#65289 (Fix suggested bound addition diagnostic) Failed merges: r? @ghost
Centril
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Oct 11, 2019
Added doc about behavior of extend on HashMap It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.
Centril
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Oct 11, 2019
Rollup of 16 pull requests Successful merges: - rust-lang#64337 (libstd: Fix typos in doc) - rust-lang#64986 (Function pointers as const generic arguments) - rust-lang#65048 (Added doc about behavior of extend on HashMap) - rust-lang#65191 (Add some regression tests) - rust-lang#65200 (Add ?Sized bound to a supertrait listing in E0038 error documentation) - rust-lang#65205 (Add long error explanation for E0568) - rust-lang#65240 (self-profiling: Add events for metadata loading (plus a small dep-tracking optimization)) - rust-lang#65248 (Suggest `if let` on `let` refutable binding) - rust-lang#65252 (expand: Simplify expansion of derives) - rust-lang#65263 (Deduplicate is_{freeze,copy,sized}_raw) - rust-lang#65265 (Cleanup librustc mir err codes) - rust-lang#65266 (Mark Path::join as must_use) - rust-lang#65276 (Don't cc rust-lang/compiler for toolstate changes) - rust-lang#65277 (Query generator kind for error reporting) - rust-lang#65283 (stability: Do not use `buffer_lint` after lowering to HIR) - rust-lang#65289 (Fix suggested bound addition diagnostic) Failed merges: r? @ghost
bors
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Oct 11, 2019
Rollup of 11 pull requests Successful merges: - #64337 (libstd: Fix typos in doc) - #65048 (Added doc about behavior of extend on HashMap) - #65191 (Add some regression tests) - #65200 (Add ?Sized bound to a supertrait listing in E0038 error documentation) - #65205 (Add long error explanation for E0568) - #65263 (Deduplicate is_{freeze,copy,sized}_raw) - #65266 (Mark Path::join as must_use) - #65276 (Don't cc rust-lang/compiler for toolstate changes) - #65277 (Query generator kind for error reporting) - #65283 (stability: Do not use `buffer_lint` after lowering to HIR) - #65299 (Rollup of 16 pull requests) Failed merges: r? @ghost
tmandry
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Oct 11, 2019
Added doc about behavior of extend on HashMap It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.
bors
added a commit
that referenced
this pull request
Oct 12, 2019
Rollup of 15 pull requests Successful merges: - #64337 (libstd: Fix typos in doc) - #64986 (Function pointers as const generic arguments) - #65048 (Added doc about behavior of extend on HashMap) - #65191 (Add some regression tests) - #65200 (Add ?Sized bound to a supertrait listing in E0038 error documentation) - #65205 (Add long error explanation for E0568) - #65220 (Update LLVM for Emscripten exception handling support) - #65263 (Deduplicate is_{freeze,copy,sized}_raw) - #65266 (Mark Path::join as must_use) - #65276 (Don't cc rust-lang/compiler for toolstate changes) - #65277 (Query generator kind for error reporting) - #65283 (stability: Do not use `buffer_lint` after lowering to HIR) - #65289 (Fix suggested bound addition diagnostic) - #65310 (deriving: avoid dummy Span on an artificial `type_ident` path) - #65321 (Remove painful test that is not pulling its weight) Failed merges: r? @ghost
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It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.