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path: root/clippy_lints/src/needless_update.rs
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2024-12-09Introduce `default_field_values` featureEsteban Küber-2/+2
Initial implementation of `#[feature(default_field_values]`, proposed in https://github.com/rust-lang/rfcs/pull/3681. Support default fields in enum struct variant Allow default values in an enum struct variant definition: ```rust pub enum Bar { Foo { bar: S = S, baz: i32 = 42 + 3, } } ``` Allow using `..` without a base on an enum struct variant ```rust Bar::Foo { .. } ``` `#[derive(Default)]` doesn't account for these as it is still gating `#[default]` only being allowed on unit variants. Support `#[derive(Default)]` on enum struct variants with all defaulted fields ```rust pub enum Bar { #[default] Foo { bar: S = S, baz: i32 = 42 + 3, } } ``` Check for missing fields in typeck instead of mir_build. Expand test with `const` param case (needs `generic_const_exprs` enabled). Properly instantiate MIR const The following works: ```rust struct S<A> { a: Vec<A> = Vec::new(), } S::<i32> { .. } ``` Add lint for default fields that will always fail const-eval We *allow* this to happen for API writers that might want to rely on users' getting a compile error when using the default field, different to the error that they would get when the field isn't default. We could change this to *always* error instead of being a lint, if we wanted. This will *not* catch errors for partially evaluated consts, like when the expression relies on a const parameter. Suggestions when encountering `Foo { .. }` without `#[feature(default_field_values)]`: - Suggest adding a base expression if there are missing fields. - Suggest enabling the feature if all the missing fields have optional values. - Suggest removing `..` if there are no missing fields.
2023-12-01Merge commit 'f0cdee4a3f094416189261481eae374b76792af1' into clippy-subtree-syncPhilipp Krones-1/+1
2023-11-02Merge commit '09ac14c901abc43bd0d617ae4a44e8a4fed98d9c' into clippyupPhilipp Krones-1/+1
2022-06-16Merge commit 'd7b5cbf065b88830ca519adcb73fad4c0d24b1c7' into clippyupflip1995-3/+4
2022-03-11Improve `AdtDef` interning.Nicholas Nethercote-1/+1
This commit makes `AdtDef` use `Interned`. Much the commit is tedious changes to introduce getter functions. The interesting changes are in `compiler/rustc_middle/src/ty/adt.rs`.
2021-12-06Merge commit 'a5d597637dcb78dc73f93561ce474f23d4177c35' into clippyupflip1995-0/+1
2021-07-29Merge commit '0cce3f643bfcbb92d5a1bb71858c9cbaff749d6b' into clippyupflip1995-5/+5
2021-04-08Merge commit 'b40ea209e7f14c8193ddfc98143967b6a2f4f5c9' into clippyupflip1995-1/+1
2021-03-25Merge commit '0e87918536b9833bbc6c683d1f9d51ee2bf03ef1' into clippyupflip1995-1/+1
2020-12-20Merge commit '4911ab124c481430672a3833b37075e6435ec34d' into clippyupflip1995-1/+6
2020-09-04`ty.kind` -> `ty.kind()` in rustdoc and clippyLeSeulArtichaut-1/+1
2020-07-17Rename TypeckTables to TypeckResults.Valentin Lazureanu-1/+1
2020-07-03Use 'tcx for references to AccessLevels wherever possible.Eduard-Mihai Burtescu-2/+2
2020-06-26rustc_lint: only query `typeck_tables_of` when a lint needs it.Eduard-Mihai Burtescu-1/+1
2020-06-09Merge commit 'ff0993c5e9162ddaea78e83d0f0161e68bd4ea73' into clippyLzu Tao-0/+10
2020-03-30rustup https://github.com/rust-lang/rust/pull/70536Matthias Krüger-1/+1
2020-01-13Rustup to rust-lang/rust#68045Yuki Okushi-1/+1
2020-01-11Rustup to rust-lang/rust#67806Yuki Okushi-3/+2
2020-01-07Rustup to rust-lang/rust#67886Yuki Okushi-1/+1
2019-12-27Rustup to rust-lang/rust#66936Yuki Okushi-1/+1
2019-12-04Rustup to rust-lang/rust#66878Matthias Krüger-1/+2
2019-09-27Rustup to rust-lang/rust#64813flip1995-1/+1
2019-09-26Rustup https://github.com/rust-lang/rust/pull/64513Lzu Tao-1/+1
2019-08-02Doctests: Fix all complexity lint docsPhilipp Hansch-2/+8
cc #4319
2019-04-17Use lint pass macrosMatthew Kraai-14/+3
Fixes #3917.
2019-03-05move lint documentation into macro invocationsAndy Russell-16/+16
2019-01-27rustup https://github.com/rust-lang/rust/pull/57726Matthias Krüger-0/+4
2019-01-08Remove all copyright license headersPhilipp Hansch-9/+0
Discussion previously happened in https://github.com/rust-lang/rust/pull/43498
2018-12-29Remove crate:: prefixes from crate pathsKonrad Borowski-4/+4
This is somewhat misleading, as those are actually external crates, and don't need a crate:: prefix.
2018-11-27Run rustfmt on clippy_lintsflip1995-4/+7
2018-10-06Add license header to Rust filesManish Goregaokar-0/+10
2018-09-15Reintroduce `extern crate` for non-Cargo dependencies.Eduard-Mihai Burtescu-4/+4
2018-08-29Switch to declare_tool_lint macroflip1995-1/+1
2018-08-22rustup, fix breakage introduced by https://github.com/rust-lang/rust/pull/53581Matthias Krüger-1/+1
2018-07-19Remove import of rustcManish Goregaokar-0/+1
2018-07-16ExprKindcsmoe-2/+2
2018-05-30Run rustfixMateusz Mikuła-1/+1
2018-03-28Categorize all the lints!Oliver Schneider-2/+2
2018-01-10Version bumpOliver Schneider-1/+1
2017-08-14RustfmtOliver Schneider-4/+6
2017-06-11Abide by the common rustc::ty conventions.Eduard-Mihai Burtescu-2/+2
2017-01-13rustup to 2017-01-12Oliver Schneider-1/+1
2016-12-07update to the rust-PR that unblocks clippyOliver Schneider-2/+2
2016-12-06rustup to rustc 1.15.0-dev (3b248a184 2016-12-05)Oliver Schneider-1/+1
2016-11-16Rustup to rustc 1.15.0-nightly (0ed951993 2016-11-14)mcarton-1/+1
2016-09-10Rustup to *rustc 1.13.0-nightly (f1f40f850 2016-09-09)*mcarton-2/+2
2016-08-07Make the lint docstrings more consistent.Georg Brandl-2/+4
2016-07-16Improve docsmcarton-2/+5
2016-06-16round 1Oliver Schneider-3/+3
2016-05-27split clippy into lints, plugin and cargo-clippyOliver Schneider-0/+42
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