Safe Haskell	None

DDC.Core.Eval.Name

Synopsis

Documentation

data Name Source

Names of things recognised by the evaluator.

Constructors

NameVar String	User variables.
NameCon String	User constructors.
NameInt Integer	Integer literals (which data constructors).
NamePrimCon PrimCon	Primitive constructors (eg `List, Nil`).
NamePrimOp PrimOp	Primitive operators (eg `addInt, subInt`).
NameLoc Loc	Store locations.
NameRgn Rgn	Region handles.
NameCap Cap	Store capabilities.

Instances

Eq Name
Ord Name
Show Name
Typeable Name
Pretty Name
NFData Name

data PrimCon Source

A primitive constructor.

Constructors

PrimTyConInt	`Int` type constructor.
PrimTyConPair	`Pair` type constructor.
PrimTyConList	`List` type constructor.
PrimDaConPr	`P` data construct (pairs).
PrimDaConNil	`Nil` data constructor.
PrimDaConCons	`Cons` data constructor.

Instances

Eq PrimCon
Ord PrimCon
Show PrimCon
Pretty PrimCon
NFData PrimCon

data PrimOp Source

A primitive operator.

Constructors

PrimOpNegInt
PrimOpAddInt
PrimOpSubInt
PrimOpMulInt
PrimOpDivInt
PrimOpEqInt
PrimOpUpdateInt
PrimOpCopyInt

Instances

Eq PrimOp
Ord PrimOp
Show PrimOp
Pretty PrimOp
NFData PrimOp

data Loc Source

A store location.

These are pretty printed like L4#.

Constructors

Loc Int

Instances

Eq Loc
Ord Loc
Show Loc
Pretty Loc
NFData Loc

data Rgn Source

A region handle.

These are pretty printed like R5#.

Constructors

Rgn Int

Instances

Eq Rgn
Ord Rgn
Show Rgn
Pretty Rgn
NFData Rgn

data Cap Source

These are primitive witnesses that guarantee the associated property of the program. Ostensibly, they are only introduced by the system at runtime, but for testing purposes we can also inject them into the source program.

Constructors

CapGlobal	Witness that a region is global. Global regions live for the duration of the program and are not deallocated in a stack like manner. This lets us hide the use of such regions, and rely on the garbage collector to reclaim the space.
CapConst	Witness that a region is constant. This lets us purify read and allocation effects on it, and prevents it from being Mutable.
CapMutable	Witness that a region is mutable. This lets us update objects in the region, and prevents it from being Constant.
CapDistinct Int	Witness that some regions are distinct This lets us perform aliasing based optimisations.
CapLazy	Witness that a region is lazy. This lets is allocate thunks into the region, and prevents it from being Manifest.
CapManifest	Witness that a region is manifest. This ensures there are no thunks in the region, which prevents it from being Lazy.

Instances

Eq Cap
Ord Cap
Show Cap
Pretty Cap
NFData Cap

readName :: String -> Maybe Name Source

Read a primitive name.

lexModuleString :: String -> Int -> String -> [Token (Tok Name)]Source

Lex a string to tokens, using primitive names.

The first argument gives the starting source line number.

lexExpString :: String -> Int -> String -> [Token (Tok Name)]Source

Lex a string to tokens, using primitive names.

The first argument gives the starting source line number.