feat(lsp): resolve symbols across workspace files

Assisted-by: GLM 5.3 Flash

lsp/server.go

@@ -24,7 +24,8 @@ type Server struct {
 	out     io.Writer
 	mu      sync.Mutex // guards writes to out
 	docs    map[string]string
-	version string // reported in the initialize result ("" omits it)
+	ws      workspaceIndex // the on-disk workspace beyond the open documents
+	version string         // reported in the initialize result ("" omits it)
 }
 
 // New returns a server reading from in and writing to out.
@@ -169,6 +170,11 @@ func (s *Server) dispatch(msg *rpcMessage) (exit bool) {
 
 	switch msg.Method {
 	case "initialize":
+		var ip initializeParams
+		if len(msg.Params) > 0 {
+			json.Unmarshal(msg.Params, &ip)
+		}
+		s.ws.roots = ip.roots()
 		info := map[string]string{"name": "gasm"}
 		if s.version != "" {
 			info["version"] = s.version
@@ -198,6 +204,7 @@ func (s *Server) dispatch(msg *rpcMessage) (exit bool) {
 				DiagnosticProvider:        map[string]any{"interFileDependencies": false, "workspaceDiagnostics": false},
 				DocumentLinkProvider:      map[string]any{},
 				FoldingRangeProvider:      true,
+				Workspace:                 map[string]any{"didChangeWatchedFiles": map[string]any{}},
 			},
 			ServerInfo: info,
 		})
@@ -308,6 +315,14 @@ func (s *Server) dispatch(msg *rpcMessage) (exit bool) {
 		json.Unmarshal(msg.Params, &p)
 		s.respond(msg.ID, s.workspaceSymbols(p))
 
+	case "workspace/didChangeWatchedFiles":
+		var p didChangeWatchedFilesParams
+		if json.Unmarshal(msg.Params, &p) == nil {
+			for _, ch := range p.Changes {
+				s.ws.watched(uriPath(ch.URI), ch.Type == fileDeleted)
+			}
+		}
+
 	case "shutdown":
 		s.respond(msg.ID, nil)