fset      *token.FileSet // positions are relative to fset
	ctx       build.Context
	failed    bool
	donePaths map[string]interface{}
}

func newAnalyzer() *analyzer {
	ctx := build.Default
	ctx.CgoEnabled = true

	a := &analyzer{
		fset:      token.NewFileSet(),
		ctx:       ctx,
		donePaths: make(map[string]interface{}),
	}

	return a
}

// collect extracts test metadata from a file.