id -package:vectortiles package:ghc

Identity function.

id x = x

Identifier

GHC uses several kinds of name internally:

• OccName: see GHC.Types.Name.Occurrence#name_types
• RdrName: see GHC.Types.Name.Reader#name_types
• Name: see GHC.Types.Name#name_types
• Id represents names that not only have a Name but also a Type and some additional details (a IdInfo and one of LocalIdDetails or GlobalIdDetails) that are added, modified and inspected by various compiler passes. These Var names may either be global or local, see GHC.Types.Var#globalvslocal
• Var: see GHC.Types.Var#name_types

Get from either the worker or the wrapper Id to the DataCon. Currently used only in the desugarer. INVARIANT: idDataCon (dataConWrapId d) = d: remember, dataConWrapId can return either the wrapper or the worker

Immediate dominators. O(|E|*alpha(|E|,|V|)), where alpha(m,n) is "a functional inverse of Ackermann's function". This Complexity bound assumes O(1) indexing. Since we're using IntMap, it has an additional lg |V| factor somewhere in there. I'm not sure where.

True when when the instance heads are the same e.g. both are Eq [(a,b)] Used for overriding in GHCi Obviously should be insensitive to alpha-renaming

Is this a dependency signature include? If so, we don't compile this include when we instantiate this unit (as there should not be any modules brought into scope.)

GHC generates an ImportDecl to represent the invisible `import Prelude` that appears in any file that omits `import Prelude`, setting this field to indicate that the import doesn't appear in the original source. True => implicit import (of Prelude)