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| Synopsis |
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| Names set type
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| type NameSet = UniqSet Name |
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| Manipulating these sets
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| emptyNameSet :: NameSet |
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| unitNameSet :: Name -> NameSet |
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| mkNameSet :: [Name] -> NameSet |
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| unionNameSets :: NameSet -> NameSet -> NameSet |
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| unionManyNameSets :: [NameSet] -> NameSet |
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| minusNameSet :: NameSet -> NameSet -> NameSet |
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| elemNameSet :: Name -> NameSet -> Bool |
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| nameSetToList :: NameSet -> [Name] |
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| addOneToNameSet :: NameSet -> Name -> NameSet |
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| addListToNameSet :: NameSet -> [Name] -> NameSet |
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| delFromNameSet :: NameSet -> Name -> NameSet |
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| delListFromNameSet :: NameSet -> [Name] -> NameSet |
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| isEmptyNameSet :: NameSet -> Bool |
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| foldNameSet :: (Name -> b -> b) -> b -> NameSet -> b |
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| filterNameSet :: (Name -> Bool) -> NameSet -> NameSet |
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| intersectsNameSet :: NameSet -> NameSet -> Bool |
| True if there is a non-empty intersection.
s1 intersectsNameSet s2 doesn't compute s2 if s1 is empty
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| intersectNameSet :: NameSet -> NameSet -> NameSet |
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| Free variables
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| type FreeVars = NameSet |
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| Manipulating sets of free variables
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| isEmptyFVs :: NameSet -> Bool |
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| emptyFVs :: FreeVars |
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| plusFVs :: [FreeVars] -> FreeVars |
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| plusFV :: FreeVars -> FreeVars -> FreeVars |
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| mkFVs :: [Name] -> FreeVars |
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| addOneFV :: FreeVars -> Name -> FreeVars |
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| unitFV :: Name -> FreeVars |
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| delFV :: Name -> FreeVars -> FreeVars |
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| delFVs :: [Name] -> FreeVars -> FreeVars |
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| Defs and uses
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| type Defs = NameSet |
| A set of names that are defined somewhere
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| type Uses = NameSet |
| A set of names that are used somewhere
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| type DefUse = (Maybe Defs, Uses) |
(Just ds, us) => The use of any member of the ds
implies that all the us are used too.
Also, us may mention ds.
Nothing => Nothing is defined in this group, but
nevertheless all the uses are essential.
Used for instance declarations, for example
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| type DefUses = [DefUse] |
| A number of DefUses in dependency order: earlier Defs scope over later Uses
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| Manipulating defs and uses
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| emptyDUs :: DefUses |
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| usesOnly :: Uses -> DefUses |
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| mkDUs :: [(Defs, Uses)] -> DefUses |
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| plusDU :: DefUses -> DefUses -> DefUses |
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| findUses :: DefUses -> Uses -> Uses |
| Given some DefUses and some Uses, find all the uses, transitively.
The result is a superset of the input Uses; and includes things defined
in the input DefUses (but only if they are used)
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| duDefs :: DefUses -> Defs |
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| duUses :: DefUses -> Uses |
| Just like allUses, but Defs are not eliminated from the Uses returned
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| allUses :: DefUses -> Uses |
| Collect all Uses, regardless of whether the group is itself used,
but remove Defs on the way
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| Produced by Haddock version 2.4.2 |
