Fix notifications vs requests

internal/lsp/notifications.go

@@ -0,0 +1,55 @@
+package lsp
+
+import "github.com/sourcegraph/go-lsp"
+
+func (s *Server) DidOpen(filename, language, text string, version int) {
+	doc := lsp.TextDocumentItem{
+		URI:        lsp.DocumentURI("file://" + filename),
+		LanguageID: language,
+		Version:    version,
+		Text:       text,
+	}
+
+	params := lsp.DidOpenTextDocumentParams{
+		TextDocument: doc,
+	}
+
+	s.sendNotification("textDocument/didOpen", params)
+}
+
+func (s *Server) DidSave(filename string) {
+	doc := lsp.TextDocumentIdentifier{
+		URI: lsp.DocumentURI("file://" + filename),
+	}
+
+	params := lsp.DidSaveTextDocumentParams{
+		TextDocument: doc,
+	}
+	s.sendNotification("textDocument/didSave", params)
+}
+
+func (s *Server) DidChange(filename string, version int, changes []lsp.TextDocumentContentChangeEvent) {
+	doc := lsp.VersionedTextDocumentIdentifier{
+		TextDocumentIdentifier: lsp.TextDocumentIdentifier{
+			URI: lsp.DocumentURI("file://" + filename),
+		},
+		Version: version,
+	}
+
+	params := lsp.DidChangeTextDocumentParams{
+		TextDocument:   doc,
+		ContentChanges: changes,
+	}
+	s.sendNotification("textDocument/didChange", params)
+}
+
+func (s *Server) DidClose(filename string) {
+	doc := lsp.TextDocumentIdentifier{
+		URI: lsp.DocumentURI("file://" + filename),
+	}
+
+	params := lsp.DidCloseTextDocumentParams{
+		TextDocument: doc,
+	}
+	s.sendNotification("textDocument/didClose", params)
+}