extract source code from PDB/OBJ/SBR/BSC debug info

hello all

I overwrote a cpp files. I would like to retrieve its source code from previous (before overwriting) project debug information.
I have everything. functions name and parameters type, the project overall debug info (its PDB and BSC files) and the OBJ and SBR files of the overwritten class. can I do it ? how ?

thanks in advance