diff options
Diffstat (limited to 'crates/ra_assists/src/handlers/add_impl.rs')
-rw-r--r-- | crates/ra_assists/src/handlers/add_impl.rs | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/crates/ra_assists/src/handlers/add_impl.rs b/crates/ra_assists/src/handlers/add_impl.rs deleted file mode 100644 index eceba7d0a..000000000 --- a/crates/ra_assists/src/handlers/add_impl.rs +++ /dev/null | |||
@@ -1,98 +0,0 @@ | |||
1 | use ra_syntax::ast::{self, AstNode, NameOwner, TypeParamsOwner}; | ||
2 | use stdx::{format_to, SepBy}; | ||
3 | |||
4 | use crate::{AssistContext, AssistId, Assists}; | ||
5 | |||
6 | // Assist: add_impl | ||
7 | // | ||
8 | // Adds a new inherent impl for a type. | ||
9 | // | ||
10 | // ``` | ||
11 | // struct Ctx<T: Clone> { | ||
12 | // data: T,<|> | ||
13 | // } | ||
14 | // ``` | ||
15 | // -> | ||
16 | // ``` | ||
17 | // struct Ctx<T: Clone> { | ||
18 | // data: T, | ||
19 | // } | ||
20 | // | ||
21 | // impl<T: Clone> Ctx<T> { | ||
22 | // $0 | ||
23 | // } | ||
24 | // ``` | ||
25 | pub(crate) fn add_impl(acc: &mut Assists, ctx: &AssistContext) -> Option<()> { | ||
26 | let nominal = ctx.find_node_at_offset::<ast::NominalDef>()?; | ||
27 | let name = nominal.name()?; | ||
28 | let target = nominal.syntax().text_range(); | ||
29 | acc.add(AssistId("add_impl"), format!("Implement {}", name.text().as_str()), target, |edit| { | ||
30 | let type_params = nominal.type_param_list(); | ||
31 | let start_offset = nominal.syntax().text_range().end(); | ||
32 | let mut buf = String::new(); | ||
33 | buf.push_str("\n\nimpl"); | ||
34 | if let Some(type_params) = &type_params { | ||
35 | format_to!(buf, "{}", type_params.syntax()); | ||
36 | } | ||
37 | buf.push_str(" "); | ||
38 | buf.push_str(name.text().as_str()); | ||
39 | if let Some(type_params) = type_params { | ||
40 | let lifetime_params = type_params | ||
41 | .lifetime_params() | ||
42 | .filter_map(|it| it.lifetime_token()) | ||
43 | .map(|it| it.text().clone()); | ||
44 | let type_params = | ||
45 | type_params.type_params().filter_map(|it| it.name()).map(|it| it.text().clone()); | ||
46 | |||
47 | let generic_params = lifetime_params.chain(type_params).sep_by(", "); | ||
48 | format_to!(buf, "<{}>", generic_params) | ||
49 | } | ||
50 | match ctx.config.snippet_cap { | ||
51 | Some(cap) => { | ||
52 | buf.push_str(" {\n $0\n}"); | ||
53 | edit.insert_snippet(cap, start_offset, buf); | ||
54 | } | ||
55 | None => { | ||
56 | buf.push_str(" {\n}"); | ||
57 | edit.insert(start_offset, buf); | ||
58 | } | ||
59 | } | ||
60 | }) | ||
61 | } | ||
62 | |||
63 | #[cfg(test)] | ||
64 | mod tests { | ||
65 | use crate::tests::{check_assist, check_assist_target}; | ||
66 | |||
67 | use super::*; | ||
68 | |||
69 | #[test] | ||
70 | fn test_add_impl() { | ||
71 | check_assist(add_impl, "struct Foo {<|>}\n", "struct Foo {}\n\nimpl Foo {\n $0\n}\n"); | ||
72 | check_assist( | ||
73 | add_impl, | ||
74 | "struct Foo<T: Clone> {<|>}", | ||
75 | "struct Foo<T: Clone> {}\n\nimpl<T: Clone> Foo<T> {\n $0\n}", | ||
76 | ); | ||
77 | check_assist( | ||
78 | add_impl, | ||
79 | "struct Foo<'a, T: Foo<'a>> {<|>}", | ||
80 | "struct Foo<'a, T: Foo<'a>> {}\n\nimpl<'a, T: Foo<'a>> Foo<'a, T> {\n $0\n}", | ||
81 | ); | ||
82 | } | ||
83 | |||
84 | #[test] | ||
85 | fn add_impl_target() { | ||
86 | check_assist_target( | ||
87 | add_impl, | ||
88 | " | ||
89 | struct SomeThingIrrelevant; | ||
90 | /// Has a lifetime parameter | ||
91 | struct Foo<'a, T: Foo<'a>> {<|>} | ||
92 | struct EvenMoreIrrelevant; | ||
93 | ", | ||
94 | "/// Has a lifetime parameter | ||
95 | struct Foo<'a, T: Foo<'a>> {}", | ||
96 | ); | ||
97 | } | ||
98 | } | ||