Add language server daemon. (#2251)

* Add language server daemon.

* Fix.

Co-authored-by: Yong He <yhe@nvidia.com>
Co-authored-by: jsmall-nvidia <jsmall@nvidia.com>
Co-authored-by: Theresa Foley <10618364+tangent-vector@users.noreply.github.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/tools/slangd/language-server.h b/tools/slangd/language-server.h
new file mode 100644
index 000000000..829a629b1
--- /dev/null
+++ b/tools/slangd/language-server.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "../../source/core/slang-io.h"
+#include "../../source/core/slang-process-util.h"
+#include "../../source/core/slang-string-util.h"
+#include "../../source/core/slang-string.h"
+#include "../../source/core/slang-writer.h"
+#include "../../source/compiler-core/slang-json-rpc-connection.h"
+#include "language-server-protocol.h"
+
+namespace Slang
+{
+    class LanguageServer
+    {
+    public:
+        RefPtr<JSONRPCConnection> m_connection;
+        ComPtr<slang::IGlobalSession> m_session;
+        bool m_quit = false;
+        List<LanguageServerProtocol::WorkspaceFolder> m_workspaceFolders;
+
+        SlangResult init(const LanguageServerProtocol::InitializeParams& args);
+        SlangResult execute();
+        void update();
+        SlangResult didOpenTextDocument(
+            const LanguageServerProtocol::DidOpenTextDocumentParams& args);
+        SlangResult didCloseTextDocument(
+            const LanguageServerProtocol::DidCloseTextDocumentParams& args);
+        SlangResult didChangeTextDocument(
+            const LanguageServerProtocol::DidChangeTextDocumentParams& args);
+
+    private:
+        SlangResult _executeSingle();
+        slang::IGlobalSession* getOrCreateGlobalSession();
+    };
+}