GHC.Unit.External

In OneShot mode (only), home-package modules accumulate in the external package state, and are sucked in lazily. For these home-pkg modules (only) we need to record which are boot modules. We set this field after loading all the explicitly-imported interfaces, but before doing anything else

The ModuleName part is not necessary, but it's useful for debug prints, and it's convenient because this field comes direct from GHC.Tc.Utils.imp_dep_mods

The ModIfaces for modules in external packages whose interfaces we have opened. The declarations in these interface files are held in the eps_decls, eps_inst_env, eps_fam_inst_env and eps_rules fields of this record, not in the mi_decls fields of the interface we have sucked in.

What is in the PIT is:

• The Module

• Fingerprint info

• Its exports

• Fixities

• Deprecations and warnings

Cache for mi_free_holes. Ordinarily, we can rely on the eps_PIT for this information, EXCEPT that when we do dependency analysis, we need to look at the Dependencies of our imports to determine what their precise free holes are (moduleFreeHolesPrecise). We don't want to repeatedly reread in the interface for every import, so cache it here. When the PIT gets filled in we can drop these entries.

Result of typechecking all the external package interface files we have sucked in. The domain of the mapping is external-package modules

If an interface was written with -fwrite-if-simplified-core, this will contain an IO action that compiles bytecode from core bindings.

See Note [Interface Files with Core Definitions]

The total InstEnv accumulated from all the external-package modules

The total FamInstEnv accumulated from all the external-package modules

The total RuleEnv accumulated from all the external-package modules

The total AnnEnv accumulated from all the external-package modules

The total CompleteMatches accumulated from all the external-package modules

The family instances accumulated from external packages, keyed off the module that declared them

Statistics about what was loaded from external packages

Default declarations exported by external packages