Safe Haskell | None |
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Transformations of the Normalization process

- appProp :: NormRewrite
- bindNonRep :: NormRewrite
- liftNonRep :: NormRewrite
- caseLet :: NormRewrite
- caseCon :: NormRewrite
- caseCase :: NormRewrite
- inlineNonRep :: NormRewrite
- typeSpec :: NormRewrite
- nonRepSpec :: NormRewrite
- etaExpansionTL :: NormRewrite
- inlineClosedTerm :: String -> NormRewrite -> NormRewrite
- nonRepANF :: NormRewrite
- bindConstantVar :: NormRewrite
- constantSpec :: NormRewrite
- makeANF :: NormRewrite
- deadCode :: NormRewrite
- topLet :: NormRewrite
- inlineWrapper :: NormRewrite
- recToLetRec :: NormRewrite

# Documentation

Propagate arguments of application inwards; except for `Lam`

where the
argument becomes let-bound.

bindNonRep :: NormRewriteSource

Inline non-recursive, non-representable let-bindings

liftNonRep :: NormRewriteSource

Lift recursive, non-representable let-bindings

Lift the let-bindings out of the subject of a Case-decomposition

Specialize a Case-decomposition (replace by the RHS of an alternative) if the subject is (an application of) a DataCon; or if there is only a single alternative that doesn't reference variables bound by the pattern.

Move a Case-decomposition from the subject of a Case-decomposition to the alternatives

inlineNonRep :: NormRewriteSource

Inline function with a non-representable result if it's the subject of a Case-decomposition

Specialize functions on their type

nonRepSpec :: NormRewriteSource

Specialize functions on their non-representable argument

etaExpansionTL :: NormRewriteSource

Eta-expand top-level lambda's (DON'T use in a traversal!)

inlineClosedTerm :: String -> NormRewrite -> NormRewriteSource

Inline nullary/closed functions

nonRepANF :: NormRewriteSource

Bring an application of a DataCon or Primitive in ANF, when the argument is is considered non-representable

bindConstantVar :: NormRewriteSource

Inline let-bindings when the RHS is either a local variable reference or is constant

constantSpec :: NormRewriteSource

Specialise functions on arguments which are constant

Turn an expression into a modified ANF-form. As opposed to standard ANF, constants do not become let-bound.

Remove unused let-bindings

Ensure that top-level lambda's eventually bind a let-expression of which the body is a variable-reference.

inlineWrapper :: NormRewriteSource

Inline functions which simply "wrap" another function

recToLetRec :: NormRewriteSource

Turn a normalized recursive function, where the recursive calls only pass along the unchanged original arguments, into let-recursive function. This means that all recursive calls are replaced by the same variable reference as found in the body of the top-level let-expression.