Measure percentage of method execution when using CodeDOM

Question

I am using CodeDOM in order to execute the method (written by the user). I compile source code into a binary assembly and then execute the method with the appropriate parameters. It works fine, however I would like to measure how big part of this method was executed/get number of lines that have been executed during test run to be able to calculate percentage of coverage. Do you know some nuget, external tool that would help me to achive that? Thank you!