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| * | | Increase Highlights highlight range to covering elementLukas Wirth2021-02-041-1/+1
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*-. \ \ \ Merge #7570 #7571bors[bot]2021-02-056-165/+164
|\ \ \ \ \ | |_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7570: Add doc gen to the `generate_enum_match_method` assist r=yoshuawuyts a=yoshuawuyts Implements a small extension to https://github.com/rust-analyzer/rust-analyzer/pull/7562, generating default comments. I wasn't sure if this would fit the goals of Rust-Analyzer, so I chose to split it into a separate PR. This is especially useful when writing code in a codebase which uses `#![warn(missing_docs)]` lint, as many production-grade libraries do. The comments we're generating here are similar to the ones found on [`Option::is_some`](https://doc.rust-lang.org/std/option/enum.Option.html#method.is_some) and [`Result::is_err`](https://doc.rust-lang.org/std/result/enum.Result.html#method.is_err). I briefly considered only generating these for `pub` types, but they seem small and unobtrusive enough that they're probably useful in the general case. Thanks! ## Example __input__ ```rust pub(crate) enum Variant { Undefined, Minor, // cursor here Major, } ``` __output__ ```rust pub(crate) enum Variant { Undefined, Minor, Major, } impl Variant { /// Returns `true` if the variant is [`Minor`]. pub(crate) fn is_minor(&self) -> bool { matches!(self, Self::Minor) } } ``` ## Future Directions This opens up the path to adding an assist for generating these comments on existing `is_` methods. This would make it both easy to document new code, and update existing code with documentation. 7571: Cleanup decl_check r=Veykril a=Veykril bors r+ Co-authored-by: Yoshua Wuyts <[email protected]> Co-authored-by: Lukas Wirth <[email protected]>
| | * | | Cleanup decl_checkLukas Wirth2021-02-054-164/+154
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| * | | | Add doc gen to the `generate_enum_match_method` assistYoshua Wuyts2021-02-052-1/+10
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* | | | | Merge #7569bors[bot]2021-02-051-0/+8
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7569: Add howtos r=matklad a=matklad bors r+ 🤖 Co-authored-by: Aleksey Kladov <[email protected]>
| * | | | | Add howtosAleksey Kladov2021-02-051-0/+8
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* | | | | | Merge #7562bors[bot]2021-02-055-64/+317
|\ \ \ \ \ \ | |/ / / / / |/| / / / / | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7562: add `generate_enum_match` assist r=matklad a=yoshuawuyts This adds a `generate_enum_match` assist, which generates `is_` variants for enums (e.g. `Option::{is_none,is_some}` in std). This is my first attempt at contributing to Rust-Analyzer, so I'm not sure if I've gotten everything right. Thanks! ## Example **Input** ```rust pub(crate) enum Variant { Undefined, Minor, // cursor here Major, } ``` **Output** ```rust pub(crate) enum Variant { Undefined, Minor, Major, } impl Variant { pub(crate) fn is_minor(&self) -> bool { matches!(self, Self::Minor) } } ``` ## Future Directions I made this as a stepping stone for some of the more involved refactors (e.g. #5944). I'm not sure yet how to create, use, and test `window.showQuickPick`-based asssists in RA. But once that's possible, it'd probably be nice to be able to generate match methods in bulk through the quickpick UI rather than one-by-one: ``` [x] Select enum members to generate methods for. (3 selected) [ OK ] --------------------------------------------------------------------------- [x] Undefined [x] Minor [x] Major ``` Co-authored-by: Yoshua Wuyts <[email protected]> Co-authored-by: Yoshua Wuyts <[email protected]>
| * | | | Move `find_struct_impl` to assist utilsYoshua Wuyts2021-02-053-154/+85
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| * | | | add `generate-enum-match` assistYoshua Wuyts2021-02-053-0/+322
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* | | | | Merge #7568bors[bot]2021-02-051-2/+5
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7568: Fix merging of `segment_index` in path resolution r=jonas-schievink a=jonas-schievink This caused associated item lookup to fail when modifying `resolver.rs` to handle block expressions with inner items. bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | | Fix merging of `segment_index` in path resolutionJonas Schievink2021-02-051-2/+5
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* | | | | Merge #7567bors[bot]2021-02-051-18/+16
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7567: Remove unnecessary allocs in case_conv r=Veykril a=Veykril and some replace unwraps bors r+ Co-authored-by: Lukas Wirth <[email protected]>
| * | | | Remove unnecessary allocs in case_convLukas Wirth2021-02-051-18/+16
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* | | | Merge #7535bors[bot]2021-02-054-1/+2189
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7535: Extract function assist r=cpud36 a=cpud36 This PR adds `extract function/method` assist. closes #5409. # Supported features Assist should support extracting from expressions(`1`, `2 + 2`, `loop { }`) and from a series of statements, e.g.: ```rust foo(); $0bar(); baz();$0 quix(); ``` Assist also supports extracting parameters, like: ```rust fn foo() -> i32 { let n = 1; $0n + 1$0 } // - fn foo() -> i32 { let n = 1; fun_name(n) } fn fun_name(n: i32) -> i32 { n + 1 } ``` Extracting methods also generally works. Assist allows referencing outer variables, both mutably and immutably, and handles handles access to variables local to extracted function: ```rust fn foo() { let mut n = 1; let mut m = 2; let mut moved_v = Vec::new(); let mut ref_mut_v = Vec::new(); $0 n += 1; let k = 1; moved_v.push(n); let r = &mut m; ref_mut_v.push(*r); let h = 3; $0 n = ref_mut_v.len() + k; n -= h + m; } // - fn foo() { let mut n = 1; let mut m = 2; let mut moved_v = Vec::new(); let mut ref_mut_v = Vec::new(); let (k, h) = fun_name(&mut n, moved_v, &mut m, &mut ref_mut_v); n = ref_mut_v.len() + k; n -= h + m; } fn fun_name(n: &mut i32, mut moved_v: Vec<i32>, m: &mut i32, ref_mut_v: &mut Vec<i32>) -> (i32, i32) { *n += 1; let k = 1; moved_v.push(*n); let r = m; ref_mut_v.push(*r); let h = 3; (k, h) } ``` So we handle both input and output paramters # Showcase ![extract_cursor_in_range_3](https://user-images.githubusercontent.com/4218373/106980190-c9870800-6770-11eb-83d9-3d36b2550ff6.gif) ![fill_match_arms_discard_wildcard](https://user-images.githubusercontent.com/4218373/106980197-cbe96200-6770-11eb-96b0-14c27894fac0.gif) ![ide_db_helpers_handle_kind](https://user-images.githubusercontent.com/4218373/106980201-cdb32580-6770-11eb-9e6e-6ac8155d65ac.gif) ![ide_db_imports_location_local_query](https://user-images.githubusercontent.com/4218373/106980205-cf7ce900-6770-11eb-8516-653c8fcca807.gif) # Working with non-`Copy` types Consider the following example: ```rust fn foo() { let v = Vec::new(); $0 let n = v.len(); $0 let is_empty = v.is_empty(); } ``` `v` must be a parameter to extracted function. The question is, what type should it have. It could be `v: Vec<i32>`, or `v: &Vec<i32>`. The former is incorrect for `Vec<i32>`, but the later is silly for `i32`. To resolve this we need to know if the type implements `Copy` trait. I didn't find any api available from assists to query this. `hir_ty::method_resolution::implements` seems relevant, but is isn't publicly re-exported from `hir`. # Star(`*`) token and pointer dereference If I understand correctly, in order to create expression like `*p`, one should use `ast::make::expr_prefix(T![*], ...)`, which in turn calls `token(T![*])`. `token` does not have star in `tokens::SOURCE_FILE`, so this panics. I had to add `*` to `SOURCE_FILE` to make it work. Correct me if this is not intended way to do this. # Lowering access `value -> mut ref -> shared ref` Consider the following example: ```rust fn foo() { let v = Vec::new(); $0 let n = v.len(); $0 } ``` `v` is not used after extracted function body, so both `v: &Vec<i32>` and `v: Vec<i32>` would work. Currently the later would be chosen. We can however check the body of extracted function and conclude that `v: &Vec<i32>` is sufficient. Using `v: &Vec<i32>`(that is a minimal required access level) might be a better default. I am unsure. # Cleanup The assist seems to be reasonably handling most of common cases. If there are no concerns with code it produces(i.e. with test cases), I will start cleaning up [edit] added showcase Co-authored-by: Vladyslav Katasonov <[email protected]>
| * | | allow extracted body to be indented(dedent it)Vladyslav Katasonov2021-02-051-13/+101
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| * | | allow transitive `&mut` access for fields in extract_functionVladyslav Katasonov2021-02-051-27/+92
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| * | | add tests for extracting if/match/while/for exprsVladyslav Katasonov2021-02-041-0/+120
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| * | | document extract_function assist implementationVladyslav Katasonov2021-02-041-22/+126
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| * | | use `&T` for non copy params of extracted functionVladyslav Katasonov2021-02-041-2/+55
| | | | | | | | | | | | | | | | Use shared ref if param is not `T: Copy` and is used after body
| * | | split extract_function into pieces and order themVladyslav Katasonov2021-02-041-380/+510
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| * | | remove ignored test for downgrading mut to sharedVladyslav Katasonov2021-02-031-30/+0
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| * | | allow calling `&mut` methods on outer vars when extracing functionVladyslav Katasonov2021-02-031-0/+116
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| * | | allow `&mut param` when extracting functionVladyslav Katasonov2021-02-031-3/+107
| | | | | | | | | | | | | | | | | | | | | | | | Recognise &mut as variable modification. This allows extracting functions with `&mut var` with `var` being in outer scope
| * | | allow modifications of vars from outer scope inside extracted functionVladyslav Katasonov2021-02-032-46/+337
| | | | | | | | | | | | | | | | | | | | It currently allows only directly setting variable. No `&mut` references or methods.
| * | | allow local variables to be used after extracted bodyVladyslav Katasonov2021-02-031-41/+183
| | | | | | | | | | | | | | | | | | | | when variable is defined inside extracted body export this variable to original scope via return value(s)
| * | | change TODO to FIXMEVladyslav Katasonov2021-02-031-2/+2
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| * | | disable test for downgrading mutability on extractVladyslav Katasonov2021-02-031-0/+3
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| * | | convert IdentPat to Pat via IntoVladyslav Katasonov2021-02-031-5/+5
| | | | | | | | | | | | | | | | before child getter was used
| * | | support extracting methods; no mut loweringVladyslav Katasonov2021-02-031-37/+191
| | | | | | | | | | | | | | | | | | | | currently mut refernce will *not* be downgraded to shared if it is sufficient(see relevant test for example)
| * | | initial version of extract function assistVladyslav Katasonov2021-02-033-0/+848
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | there are a few currently limitations: * no modifications of function body * does not handle mutability and references * no method support * may produce incorrect results
* | | | Merge #7561bors[bot]2021-02-043-8/+9
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7561: Avoid using ModPath's fields directly r=jonas-schievink a=jonas-schievink bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Avoid using ModPath's fields directlyJonas Schievink2021-02-043-8/+9
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* | | | Merge #7559bors[bot]2021-02-0418-51/+70
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7559: Make `ModPath`'s representation private r=jonas-schievink a=jonas-schievink This lets us switch out the `Vec` for something more efficient bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Make `ModPath`'s representation privateJonas Schievink2021-02-0418-51/+70
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* | | | | Merge #7558bors[bot]2021-02-041-2/+2
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7558: Update thread_local r=kjeremy a=kjeremy Pulls in https://github.com/Amanieu/thread_local-rs/pull/30 which fixes a leak when dropping ThreadLocal. Co-authored-by: kjeremy <[email protected]>
| * | | | Update thread_localkjeremy2021-02-041-2/+2
|/ / / / | | | | | | | | | | | | | | | | Pulls in https://github.com/Amanieu/thread_local-rs/pull/30 which fixes a leak when dropping ThreadLocal.
* | | | Merge #7557bors[bot]2021-02-044-21/+67
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7557: Intern `TypeRef`s in the containing `ItemTree` r=jonas-schievink a=jonas-schievink This reduces the memory used by `ItemTreeQuery` by ~20%. As it turns out, `TypeRef` is very heavy, and is used a lot in `ItemTree`: * Many types are frequently repeated throughout the same file. This is what this PR addresses by storing identical `TypeRef`s only once per `ItemTree`. * The vast majority of `TypeRef` consist of a plain path with only a single element. "Type anchors" like in `<Ty>::func` are used incredibly rarely, and even multi-segment paths are much rarer than single-segment paths. Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Intern `TypeRef`s in the containing `ItemTree`Jonas Schievink2021-02-044-21/+67
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* | | | Merge #7555bors[bot]2021-02-042-14/+11
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7555: Expander: store a LocalModuleId, not ModuleId r=jonas-schievink a=jonas-schievink It already stores the DefMap containing the module, so having a full ModuleId is unnecessary and makes it easier to mix things up bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Expander: store a LocalModuleId, not ModuleIdJonas Schievink2021-02-042-14/+11
|/ / / / | | | | | | | | | | | | | | | | It already stores the DefMap containing the module, so having a full ModuleId is unnecessary and makes it easier to mix things up
* | | | Merge #7554bors[bot]2021-02-045-36/+67
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7554: Don't keep the parent DefMap alive via Arc r=jonas-schievink a=jonas-schievink This seems like it could easily leak a lot of memory since we don't currently run GC bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Don't keep the parent DefMap alive via ArcJonas Schievink2021-02-045-36/+67
|/ / / / | | | | | | | | | | | | | | | | This seems like it could easily leak a lot of memory since we don't currently run GC
* | | | Merge #7553bors[bot]2021-02-041-2/+42
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7553: More architecture.md r=matklad a=matklad bors r+ 🤖 Co-authored-by: Aleksey Kladov <[email protected]>
| * | | | More architecture.mdAleksey Kladov2021-02-041-2/+42
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* | | | Merge #7547bors[bot]2021-02-032-21/+26
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7547: Split out ItemScope::dump from DefMap::dump r=jonas-schievink a=jonas-schievink This is helpful for more targeted debugging bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Split out ItemScope::dump from DefMap::dumpJonas Schievink2021-02-032-21/+26
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* | | | Merge #7546bors[bot]2021-02-032-0/+11
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7546: Add newline between block and crate maps r=jonas-schievink a=jonas-schievink bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Add newline between block and crate mapsJonas Schievink2021-02-032-0/+11
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* | | | | Merge #7545bors[bot]2021-02-031-0/+1
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 7545: Add a FIXME to ItemTree r=jonas-schievink a=jonas-schievink bors r+ Co-authored-by: Jonas Schievink <[email protected]>
| * | | | Add a FIXME to ItemTreeJonas Schievink2021-02-031-0/+1
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