On Mon, 10 May 2010, Heinrich Apfelmus wrote:
The nodes are file paths, labeled with a corresponding IO action to create the file. The nodes are created from a list of rules that specify how to create an output file from several input files.
That is, in principle you could also use an unlabelled graph with FilePath as node type and you could manage a (Map FilePath (IO ())) yourselve and FGL does even not know about its existence.
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