Add way of getting docs from the code model and use for completion

2 files changed, 11 insertions, 7 deletions

diff --git a/crates/ra_ide_api/src/completion/complete_path.rs b/crates/ra_ide_api/src/completion/complete_path.rs
index 6bed299d2..aeb226847 100644
--- a/crates/ra_ide_api/src/completion/complete_path.rs
+++ b/crates/ra_ide_api/src/completion/complete_path.rs
@@ -2,6 +2,8 @@ use crate::{
     completion::{CompletionItem, CompletionItemKind, Completions, CompletionKind, CompletionContext},
 };
 
+use hir::Docs;
+
 pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
     let (path, module) = match (&ctx.path_prefix, &ctx.module) {
         (Some(path), Some(module)) => (path.clone(), module),
@@ -27,13 +29,14 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
         hir::Def::Enum(e) => {
             e.variants(ctx.db)
                 .into_iter()
-                .for_each(|(variant_name, _variant)| {
+                .for_each(|(variant_name, variant)| {
                     CompletionItem::new(
                         CompletionKind::Reference,
                         ctx.source_range(),
                         variant_name.to_string(),
                     )
                     .kind(CompletionItemKind::EnumVariant)
+                    .set_documentation(variant.docs(ctx.db))
                     .add_to(acc)
                 });
         }
diff --git a/crates/ra_ide_api/src/completion/completion_item.rs b/crates/ra_ide_api/src/completion/completion_item.rs
index e3bf82304..8e0be4c4b 100644
--- a/crates/ra_ide_api/src/completion/completion_item.rs
+++ b/crates/ra_ide_api/src/completion/completion_item.rs
@@ -1,4 +1,4 @@
-use hir::PerNs;
+use hir::{Docs, Documentation, PerNs};
 
 use crate::completion::completion_context::CompletionContext;
 use ra_syntax::{
@@ -19,7 +19,7 @@ pub struct CompletionItem {
     label: String,
     kind: Option<CompletionItemKind>,
     detail: Option<String>,
-    documentation: Option<String>,
+    documentation: Option<Documentation>,
     lookup: Option<String>,
     insert_text: Option<String>,
     insert_text_format: InsertTextFormat,
@@ -98,7 +98,7 @@ impl CompletionItem {
     }
     /// A doc-comment
     pub fn documentation(&self) -> Option<&str> {
-        self.documentation.as_ref().map(|it| it.as_str())
+        self.documentation.as_ref().map(|it| it.contents())
     }
     /// What string is used for filtering.
     pub fn lookup(&self) -> &str {
@@ -137,7 +137,7 @@ pub(crate) struct Builder {
     insert_text: Option<String>,
     insert_text_format: InsertTextFormat,
     detail: Option<String>,
-    documentation: Option<String>,
+    documentation: Option<Documentation>,
     lookup: Option<String>,
     kind: Option<CompletionItemKind>,
     text_edit: Option<TextEdit>,
@@ -197,10 +197,10 @@ impl Builder {
         self
     }
     #[allow(unused)]
-    pub(crate) fn documentation(self, docs: impl Into<String>) -> Builder {
+    pub(crate) fn documentation(self, docs: Documentation) -> Builder {
         self.set_documentation(Some(docs))
     }
-    pub(crate) fn set_documentation(mut self, docs: Option<impl Into<String>>) -> Builder {
+    pub(crate) fn set_documentation(mut self, docs: Option<Documentation>) -> Builder {
         self.documentation = docs.map(Into::into);
         self
     }
@@ -265,6 +265,7 @@ impl Builder {
             }
             self.insert_text_format = InsertTextFormat::Snippet;
         }
+
         if let Some(docs) = function.docs(ctx.db) {
             self.documentation = Some(docs);
         }