Embed stdlib documentation to AST. (#2851)

* Embed stdlib documentation to AST.

* Extract documentation for attributes.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 15 insertions, 7 deletions

diff --git a/source/slang/slang-language-server.cpp b/source/slang/slang-language-server.cpp
index b826d7cfe..dbe031fd3 100644
--- a/source/slang/slang-language-server.cpp
+++ b/source/slang/slang-language-server.cpp
@@ -230,10 +230,6 @@ String getDeclKindString(DeclRef<Decl> declRef)
     {
         return "(generic value parameter) ";
     }
-    else if (declRef.as<AttributeDecl>())
-    {
-        return "(attribute) ";
-    }
     else if (auto varDecl = declRef.as<VarDeclBase>())
     {
         auto parent = declRef.getParent();
@@ -422,8 +418,16 @@ static void _tryGetDocumentation(StringBuilder& sb, WorkspaceVersion* workspace,
     auto definingModule = getModuleDecl(decl);
     if (definingModule)
     {
-        auto markupAST = workspace->getOrCreateMarkupAST(definingModule);
-        auto markupEntry = markupAST->getEntry(decl);
+        MarkupEntry* markupEntry = nullptr;
+        if (decl->markup)
+        {
+            markupEntry = decl->markup;
+        }
+        else
+        {
+            auto markupAST = workspace->getOrCreateMarkupAST(definingModule);
+            markupEntry = markupAST->getEntry(decl);
+        }
         if (markupEntry)
         {
             sb << "\n";
@@ -705,6 +709,10 @@ SlangResult LanguageServer::hover(
     {
         fillDeclRefHoverInfo(DeclRef<Decl>(decl, nullptr));
     }
+    else if (auto attr = as<Attribute>(leafNode))
+    {
+        fillDeclRefHoverInfo(DeclRef<Decl>(attr->attributeDecl, nullptr));
+    }
     if (sb.getLength() == 0)
     {
         m_connection->sendResult(NullResponse::get(), responseId);
@@ -951,7 +959,7 @@ SlangResult LanguageServer::completion(
         return SLANG_OK;
     }
 
-    // Don't general completion suggestions after typing '['.
+    // Don't generate completion suggestions after typing '['.
     if (args.context.triggerKind ==
         LanguageServerProtocol::kCompletionTriggerKindTriggerCharacter &&
         args.context.triggerCharacter == "[")