diff options
author | Aleksey Kladov <[email protected]> | 2019-10-27 08:26:46 +0000 |
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committer | Aleksey Kladov <[email protected]> | 2019-10-27 08:26:46 +0000 |
commit | a490ba06fa635ecb34b5ce0b7205621eefaee603 (patch) | |
tree | 3793da47dbe724189842cabeb5a7cef91ad592ef /crates/ra_assists/src/assists/move_guard.rs | |
parent | 85984b09e182adca4b03d9f7efab20d48b5b632a (diff) |
document some more assists
Diffstat (limited to 'crates/ra_assists/src/assists/move_guard.rs')
-rw-r--r-- | crates/ra_assists/src/assists/move_guard.rs | 52 |
1 files changed, 50 insertions, 2 deletions
diff --git a/crates/ra_assists/src/assists/move_guard.rs b/crates/ra_assists/src/assists/move_guard.rs index 51aea6334..36c95128d 100644 --- a/crates/ra_assists/src/assists/move_guard.rs +++ b/crates/ra_assists/src/assists/move_guard.rs | |||
@@ -1,5 +1,3 @@ | |||
1 | //! FIXME: write short doc here | ||
2 | |||
3 | use hir::db::HirDatabase; | 1 | use hir::db::HirDatabase; |
4 | use ra_syntax::{ | 2 | use ra_syntax::{ |
5 | ast, | 3 | ast, |
@@ -9,6 +7,31 @@ use ra_syntax::{ | |||
9 | 7 | ||
10 | use crate::{Assist, AssistCtx, AssistId}; | 8 | use crate::{Assist, AssistCtx, AssistId}; |
11 | 9 | ||
10 | // Assist: move_guard_to_arm_body | ||
11 | // | ||
12 | // Moves match guard into match arm body. | ||
13 | // | ||
14 | // ``` | ||
15 | // enum Action { Move { distance: u32 }, Stop } | ||
16 | // | ||
17 | // fn handle(action: Action) { | ||
18 | // match action { | ||
19 | // Action::Move { distance } <|>if distance > 10 => foo(), | ||
20 | // _ => (), | ||
21 | // } | ||
22 | // } | ||
23 | // ``` | ||
24 | // -> | ||
25 | // ``` | ||
26 | // enum Action { Move { distance: u32 }, Stop } | ||
27 | // | ||
28 | // fn handle(action: Action) { | ||
29 | // match action { | ||
30 | // Action::Move { distance } => if distance > 10 { foo() }, | ||
31 | // _ => (), | ||
32 | // } | ||
33 | // } | ||
34 | // ``` | ||
12 | pub(crate) fn move_guard_to_arm_body(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> { | 35 | pub(crate) fn move_guard_to_arm_body(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> { |
13 | let match_arm = ctx.node_at_offset::<MatchArm>()?; | 36 | let match_arm = ctx.node_at_offset::<MatchArm>()?; |
14 | let guard = match_arm.guard()?; | 37 | let guard = match_arm.guard()?; |
@@ -42,6 +65,31 @@ pub(crate) fn move_guard_to_arm_body(mut ctx: AssistCtx<impl HirDatabase>) -> Op | |||
42 | ctx.build() | 65 | ctx.build() |
43 | } | 66 | } |
44 | 67 | ||
68 | // Assist: move_arm_cond_to_match_guard | ||
69 | // | ||
70 | // Moves if expression from match arm body into a guard. | ||
71 | // | ||
72 | // ``` | ||
73 | // enum Action { Move { distance: u32 }, Stop } | ||
74 | // | ||
75 | // fn handle(action: Action) { | ||
76 | // match action { | ||
77 | // Action::Move { distance } => <|>if distance > 10 { foo() }, | ||
78 | // _ => (), | ||
79 | // } | ||
80 | // } | ||
81 | // ``` | ||
82 | // -> | ||
83 | // ``` | ||
84 | // enum Action { Move { distance: u32 }, Stop } | ||
85 | // | ||
86 | // fn handle(action: Action) { | ||
87 | // match action { | ||
88 | // Action::Move { distance } if distance > 10 => foo(), | ||
89 | // _ => (), | ||
90 | // } | ||
91 | // } | ||
92 | // ``` | ||
45 | pub(crate) fn move_arm_cond_to_match_guard(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> { | 93 | pub(crate) fn move_arm_cond_to_match_guard(mut ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> { |
46 | let match_arm: MatchArm = ctx.node_at_offset::<MatchArm>()?; | 94 | let match_arm: MatchArm = ctx.node_at_offset::<MatchArm>()?; |
47 | let last_match_pat = match_arm.pats().last()?; | 95 | let last_match_pat = match_arm.pats().last()?; |