Documentation

Fields

• ic_dflags :: DynFlags

  The DynFlags used to evaluate interactive expressions and statements.

• ic_mod_index :: Int

  Each GHCi stmt or declaration brings some new things into scope. We give them names like interactive:Ghci9.T, where the ic_index is the '9'. The ic_mod_index is incremented whenever we add something to ic_tythings See Note [The interactive package]

• ic_imports :: [InteractiveImport]

  The GHCi top-level scope (ic_rn_gbl_env) is extended with these imports

  This field is only stored here so that the client can retrieve it with GHC.getContext. GHC itself doesn't use it, but does reset it to empty sometimes (such as before a GHC.load). The context is set with GHC.setContext.

• ic_tythings :: [TyThing]

  TyThings defined by the user, in reverse order of definition (ie most recent at the front) See Note [ic_tythings]

• ic_rn_gbl_env :: GlobalRdrEnv

  The cached GlobalRdrEnv, built by setContext and updated regularly It contains everything in scope at the command line, including everything in ic_tythings

• ic_instances :: ([ClsInst], [FamInst])

  All instances and family instances created during this session. These are grabbed en masse after each update to be sure that proper overlapping is retained. That is, rather than re-check the overlapping each time we update the context, we just take the results from the instance code that already does that.

• ic_fix_env :: FixityEnv

  Fixities declared in let statements

• ic_default :: Maybe [Type]

  The current default types, set by a 'default' declaration

• ic_resume :: [Resume]

  The stack of breakpoint contexts

• ic_monad :: Name

  The monad that GHCi is executing in

• ic_int_print :: Name

  The function that is used for printing results of expressions in ghci and -e mode.

• ic_cwd :: Maybe FilePath

  virtual CWD of the program

• ic_plugins :: ![LoadedPlugin]

  Cache of loaded plugins. We store them here to avoid having to load them everytime we switch to the interctive context.