.net core - buildOptions in project.json: how to calculate the files to compile, embed or copy -

for buildoptions in project.json, there similar configurations set files compiled, embedded assembly resource files , copied output directory.

{     include:"..",     includefiles: "...",     exclude: "...",     excludefiles: "...",     builtints:{       include: "...",       exclude: "..."     } } 

i know priority order first 4 is: excludefiles >includefiles>exclude>include.

but have higher priority comparing 2 builtins? or algorithm used calculate final files?