microsoft/typescript-go · error

failed to write trace file: %w

Error message

failed to write trace file: %w

What it means

Error "failed to write trace file: %w" thrown in microsoft/typescript-go.

Source

Thrown at internal/tracing/tracing.go:460

		if err := tracer.DumpTypes(); err != nil {
			return fmt.Errorf("failed to dump types for checker %d: %w", tracer.checkerIndex, err)
		}
	}

	tr.mu.Lock()
	defer tr.mu.Unlock()

	// Close the trace file(s)
	if tr.traceStarted.Load() {
		// Surface any buffered flush failure before attempting the final write.
		if tr.flushErr != nil {
			tr.traceContent.Reset()
			tr.traceStarted.Store(false)
			return tr.flushErr
		}
		// Flush any remaining buffered content and close the JSON array.
		if err := tr.fs.AppendFile(tr.tracePath, tr.traceContent.String()+"\n]\n"); err != nil {
			return fmt.Errorf("failed to write trace file: %w", err)
		}
		tr.traceContent.Reset()
		tr.traceStarted.Store(false)
	}

	// Sort legend entries by typesPath for deterministic output
	slices.SortFunc(tr.legend, func(a, b TraceRecord) int {
		return strings.Compare(a.TypesPath, b.TypesPath)
	})

	// Write the legend file
	legendPath := tspath.CombinePaths(tr.traceDir, "legend.json")
	legendData, err := json.MarshalIndent(tr.legend, "", "  ")
	if err != nil {
		return fmt.Errorf("failed to marshal legend file: %w", err)
	}
	if err := tr.fs.WriteFile(legendPath, string(legendData)); err != nil {
		return fmt.Errorf("failed to write legend file: %w", err)

View on GitHub (pinned to 1bcfa18d79)

When it happens

Trigger: Thrown at internal/tracing/tracing.go:460 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microsoft/typescript-go@1bcfa18d79 (2026-08-16). Data as JSON: /api/errors/118f7285ded27a03. Report an issue: GitHub.