Safe Haskell	None

DDC.Source.Tetra.Prim

Synopsis

Documentation

data Name Source

Names of things used in Disciple Source Tetra.

Constructors

NameVar String	A user defined variable.
NameCon String	A user defined constructor.
NameTyConTetra TyConTetra	Baked in data type constructors.
NameOpStore OpStore	Baked in store operators.
NamePrimTyCon PrimTyCon	Primitive type cosntructors.
NamePrimArith PrimArith	Primitive arithmetic, logic and comparison.
NameLitBool Bool	A boolean literal.
NameLitNat Integer	A natural literal.
NameLitInt Integer	An integer literal.
NameLitWord Integer Int	A word literal.
NameHole	A hole used during type inference.

Instances

Eq Name
Ord Name
Show Name
Pretty Name
NFData Name

data TyConTetra Source

Baked-in type constructors.

Constructors

TyConTetraRef	`Ref#`. Mutable reference.
TyConTetraTuple Int	`TupleN#`. Tuples.

Instances

Eq TyConTetra
Ord TyConTetra
Show TyConTetra
Pretty TyConTetra
NFData TyConTetra

kindTyConTetra :: TyConTetra -> Type Name Source

Take the kind of a baked-in data constructor.

data OpStore

Mutable References.

Constructors

OpStoreAllocRef	Allocate a reference.
OpStoreReadRef	Read a reference.
OpStoreWriteRef	Write to a reference.

Instances

Eq OpStore
Ord OpStore
Show OpStore
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NFData OpStore

typeOpStore :: OpStore -> Maybe (Type Name)Source

Take the type of a primitive arithmetic operator.

data PrimTyCon

Primitive type constructors.

Constructors

PrimTyConVoid	`Void#` the Void type has no values.
PrimTyConBool	`Bool#` unboxed booleans.
PrimTyConNat	`Nat#` natural numbers. Enough precision to count every object in the heap, but NOT enough precision to count every byte of memory.
PrimTyConInt	`Int#` signed integers. Enough precision to count every object in the heap, but NOT enough precision to count every byte of memory. If N is the total number of objects that can exist in the heap, then the range of `Int#` is at least (-N .. +N) inclusive.
PrimTyConWord Int	`WordN#` machine words of the given width.
PrimTyConFloat Int	`FloatN#` floating point numbers of the given width.
PrimTyConVec Int	`VecN#` a packed vector of N values. This is intended to have kind (Data -> Data), so we use concrete vector types like `Vec4`.
PrimTyConAddr	`Addr#` a relative or absolute machine address. Enough precision to count every byte of memory. Unlike pointers below, an absolute `Addr#` need not refer to memory owned by the current process.
PrimTyConPtr	`Ptr#` should point to a well-formed object owned by the current process.
PrimTyConTag	`Tag#` data constructor tags. Enough precision to count every possible alternative of an enumerated type.
PrimTyConString	`String#` of UTF8 characters. These are primitive until we can define our own unboxed types.

Instances

Eq PrimTyCon
Ord PrimTyCon
Show PrimTyCon
Pretty PrimTyCon
NFData PrimTyCon

kindPrimTyCon :: PrimTyCon -> Kind Name Source

Yield the kind of a type constructor.

tBool :: Type Name Source

Primitive Bool type.

tNat :: Type Name Source

Primitive Nat type.

tInt :: Type Name Source

Primitive Int type.

tWord :: Int -> Type Name Source

Primitive WordN type of the given width.

data PrimArith

Primitive arithmetic, logic, and comparison opretors. We expect the backend/machine to be able to implement these directly.

For the Shift Right operator, the type that it is used at determines whether it is an arithmetic (with sign-extension) or logical (no sign-extension) shift.

Constructors

PrimArithNeg	Negation
PrimArithAdd	Addition
PrimArithSub	Subtraction
PrimArithMul	Multiplication
PrimArithDiv	Division
PrimArithMod	Modulus
PrimArithRem	Remainder
PrimArithEq	Equality
PrimArithNeq	Negated Equality
PrimArithGt	Greater Than
PrimArithGe	Greater Than or Equal
PrimArithLt	Less Than
PrimArithLe	Less Than or Equal
PrimArithAnd	Boolean And
PrimArithOr	Boolean Or
PrimArithShl	Shift Left
PrimArithShr	Shift Right
PrimArithBAnd	Bit-wise And
PrimArithBOr	Bit-wise Or
PrimArithBXOr	Bit-wise eXclusive Or

Instances

Eq PrimArith
Ord PrimArith
Show PrimArith
Pretty PrimArith
NFData PrimArith

typePrimArith :: PrimArith -> Type Name Source

Take the type of a primitive arithmetic operator.

readName :: String -> Maybe Name Source

Read the name of a variable, constructor or literal.