c# - Tracing variables passing on a multi class level -

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i working on c# static source code analysis tool roslyn , need ideas on how implement/keep track of path of variables passing.

given:

a = request.query; b = a; c = a; somesink(b);

i must able provide path a->b, b->somesink(b). basic idea program should take account complex cases such variables passing through multi-class files, variables additional i.e a = b + c. scope of project c# project, library works c# do, using roslyn parse source codes , doing analysis it.


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