1 files changed, 47 insertions, 0 deletions

diff --git a/crates/completion/src/render/const_.rs b/crates/completion/src/render/const_.rs
new file mode 100644
index 000000000..d88bfa07f
--- /dev/null
+++ b/crates/completion/src/render/const_.rs
@@ -0,0 +1,47 @@
+use hir::HasSource;
+use syntax::{
+    ast::{Const, NameOwner},
+    display::const_label,
+};
+
+use crate::{
+    item::{CompletionItem, CompletionItemKind, CompletionKind},
+    render::RenderContext,
+};
+
+#[derive(Debug)]
+pub(crate) struct ConstRender<'a> {
+    ctx: RenderContext<'a>,
+    const_: hir::Const,
+    ast_node: Const,
+}
+
+impl<'a> ConstRender<'a> {
+    pub(crate) fn new(ctx: RenderContext<'a>, const_: hir::Const) -> ConstRender<'a> {
+        let ast_node = const_.source(ctx.db()).value;
+        ConstRender { ctx, const_, ast_node }
+    }
+
+    pub(crate) fn render(self) -> Option<CompletionItem> {
+        let name = self.name()?;
+        let detail = self.detail();
+
+        let item = CompletionItem::new(CompletionKind::Reference, self.ctx.source_range(), name)
+            .kind(CompletionItemKind::Const)
+            .set_documentation(self.ctx.docs(self.const_))
+            .set_deprecated(self.ctx.is_deprecated(self.const_))
+            .detail(detail)
+            .build();
+
+        Some(item)
+    }
+
+    fn name(&self) -> Option<String> {
+        let ast_node = self.const_.source(self.ctx.db()).value;
+        ast_node.name().map(|name| name.text().to_string())
+    }
+
+    fn detail(&self) -> String {
+        const_label(&self.ast_node)
+    }
+}