getContents package:ghc-lib-parser

The getContents operation returns all user input as a single string, which is read lazily as it is needed (same as hGetContents stdin).

Optional in-memory buffer containing the source code GHC should use for this target instead of reading it from disk. Since GHC version 8.10 modules which require preprocessors such as Literate Haskell or CPP to run are also supported. If a corresponding source file does not exist on disk this will result in a SourceError exception if targetId = TargetModule _ is used. However together with targetId = TargetFile _ GHC will not complain about the file missing.