Function tryDirMatch

scanner/filegraph.go:302–324

tryDirMatch returns all files whose parent directory matches the given path. This resolves namespace-level imports (e.g. C# "using Foo.Bar;" -> "Foo/Bar/") where an import refers to a whole directory rather than a single file. It also tries progressively shorter suffixes to handle namespace prefixes

(path string, idx *fileIndex)

// It also tries progressively shorter suffixes to handle namespace prefixes
// (e.g. "MyApp/Models" tries "MyApp/Models" first, then "Models").
func tryDirMatch(path string, idx *fileIndex) []string {
	// Try exact match first
	if files, ok := idx.byDir[path]; ok {
		return files
	}
	// Normalize path separators for cross-platform compatibility
	nativePath := filepath.FromSlash(path)
	if nativePath != path {
		if files, ok := idx.byDir[nativePath]; ok {
			return files
		}
	}
	// Try suffix match: strip leading segments progressively
	// This handles namespace prefixes like MyApp.Models -> Models
	parts := strings.Split(filepath.ToSlash(path), "/")
	for i := 1; i < len(parts); i++ {
		suffix := filepath.Join(parts[i:]...)
		if files, ok := idx.byDir[suffix]; ok {
			return files
		}
	}
	return nil
}

// detectModule reads go.mod to find the module name
func detectModule(root string) string {