feat(lsp): pull diagnostics, include links and folding ranges

Assisted-by: GLM 5.3 Flash

lsp/server.go

@@ -12,9 +12,7 @@ import (
 	"strings"
 	"sync"
 
-	"sourcedock.dev/petrbalvin/gasm-devkit/arch"
 	"sourcedock.dev/petrbalvin/gasm-devkit/lint"
-	"sourcedock.dev/petrbalvin/gasm-devkit/parser"
 	"sourcedock.dev/petrbalvin/gasm-devkit/token"
 )
 
@@ -136,6 +134,9 @@ func (s *Server) dispatch(msg *rpcMessage) (exit bool) {
 				CodeActionProvider:        true,
 				SignatureHelpProvider:     map[string]any{"triggerCharacters": []string{"("}},
 				WorkspaceSymbolProvider:   true,
+				DiagnosticProvider:        map[string]any{"interFileDependencies": false, "workspaceDiagnostics": false},
+				DocumentLinkProvider:      map[string]any{},
+				FoldingRangeProvider:      true,
 			},
 			ServerInfo: map[string]string{"name": "gasm", "version": "0.31.1"},
 		})
@@ -229,6 +230,18 @@ func (s *Server) dispatch(msg *rpcMessage) (exit bool) {
 		json.Unmarshal(msg.Params, &p)
 		s.respond(msg.ID, s.semanticTokens(p))
 
+	case "textDocument/diagnostic":
+		var p diagnosticParams
+		json.Unmarshal(msg.Params, &p)
+		s.respond(msg.ID, documentDiagnosticReport{Kind: "full", Items: s.diagnosticsFor(p.TextDocument.URI)})
+	case "textDocument/documentLink":
+		var p documentLinkParams
+		json.Unmarshal(msg.Params, &p)
+		s.respond(msg.ID, s.documentLinks(p.TextDocument.URI))
+	case "textDocument/foldingRange":
+		var p foldingRangeParams
+		json.Unmarshal(msg.Params, &p)
+		s.respond(msg.ID, s.foldingRanges(p.TextDocument.URI))
 	case "workspace/symbol":
 		var p workspaceSymbolParams
 		json.Unmarshal(msg.Params, &p)
@@ -250,22 +263,7 @@ func (s *Server) dispatch(msg *rpcMessage) (exit bool) {
 
 // publish parses and lints a document and pushes the diagnostics to the client.
 func (s *Server) publish(uri string) {
-	text := s.docs[uri]
-	f, _ := parser.Parse(uri, text)
-	cfg := lint.Config{Arch: arch.FromFilename(uriPath(uri))}
-	diags := lint.File(f, cfg)
-
-	out := make([]Diagnostic, 0, len(diags))
-	for _, d := range diags {
-		out = append(out, Diagnostic{
-			Range:    toRange(d.Pos.Line, d.Pos.Column, d.End),
-			Severity: lintSeverity(d.Severity),
-			Code:     d.Code,
-			Source:   "gasm",
-			Message:  d.Message,
-		})
-	}
-	s.notify("textDocument/publishDiagnostics", publishDiagnosticsParams{URI: uri, Diagnostics: out})
+	s.notify("textDocument/publishDiagnostics", publishDiagnosticsParams{URI: uri, Diagnostics: s.diagnosticsFor(uri)})
 }
 
 // toRange converts one-based line/column plus an optional end position into an