Consider reusing the golang.org/x/tools callgraph libraries and tools

[adonovan]

Nice work! You might be interested in these other libraries and tools that construct the call graph of a Go program:

golang.org/x/tools/go/callgraph
represents the call graph of a Go program

golang.org/x/tools/cmd/callgraph
computes the call graph of a program

golang.org/x/tools/cmd/godoc -analysis=pointer
displays the call graph of a Go program in a web interface