diff options
Diffstat (limited to 'crates/ide_completion/src/render/const_.rs')
-rw-r--r-- | crates/ide_completion/src/render/const_.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/crates/ide_completion/src/render/const_.rs b/crates/ide_completion/src/render/const_.rs new file mode 100644 index 000000000..5010b642a --- /dev/null +++ b/crates/ide_completion/src/render/const_.rs | |||
@@ -0,0 +1,59 @@ | |||
1 | //! Renderer for `const` fields. | ||
2 | |||
3 | use hir::HasSource; | ||
4 | use ide_db::SymbolKind; | ||
5 | use syntax::{ | ||
6 | ast::{Const, NameOwner}, | ||
7 | display::const_label, | ||
8 | }; | ||
9 | |||
10 | use crate::{ | ||
11 | item::{CompletionItem, CompletionKind}, | ||
12 | render::RenderContext, | ||
13 | }; | ||
14 | |||
15 | pub(crate) fn render_const<'a>( | ||
16 | ctx: RenderContext<'a>, | ||
17 | const_: hir::Const, | ||
18 | ) -> Option<CompletionItem> { | ||
19 | ConstRender::new(ctx, const_)?.render() | ||
20 | } | ||
21 | |||
22 | #[derive(Debug)] | ||
23 | struct ConstRender<'a> { | ||
24 | ctx: RenderContext<'a>, | ||
25 | const_: hir::Const, | ||
26 | ast_node: Const, | ||
27 | } | ||
28 | |||
29 | impl<'a> ConstRender<'a> { | ||
30 | fn new(ctx: RenderContext<'a>, const_: hir::Const) -> Option<ConstRender<'a>> { | ||
31 | let ast_node = const_.source(ctx.db())?.value; | ||
32 | Some(ConstRender { ctx, const_, ast_node }) | ||
33 | } | ||
34 | |||
35 | fn render(self) -> Option<CompletionItem> { | ||
36 | let name = self.name()?; | ||
37 | let detail = self.detail(); | ||
38 | |||
39 | let item = CompletionItem::new(CompletionKind::Reference, self.ctx.source_range(), name) | ||
40 | .kind(SymbolKind::Const) | ||
41 | .set_documentation(self.ctx.docs(self.const_)) | ||
42 | .set_deprecated( | ||
43 | self.ctx.is_deprecated(self.const_) | ||
44 | || self.ctx.is_deprecated_assoc_item(self.const_), | ||
45 | ) | ||
46 | .detail(detail) | ||
47 | .build(); | ||
48 | |||
49 | Some(item) | ||
50 | } | ||
51 | |||
52 | fn name(&self) -> Option<String> { | ||
53 | self.ast_node.name().map(|name| name.text().to_string()) | ||
54 | } | ||
55 | |||
56 | fn detail(&self) -> String { | ||
57 | const_label(&self.ast_node) | ||
58 | } | ||
59 | } | ||