Copyright	(c) 2013-2016 Galois Inc.
License	BSD3
Maintainer	cryptol@galois.com
Stability	provisional
Portability	portable
Safe Haskell	Safe
Language	Haskell2010

Cryptol.Parser.Selector

Description

Synopsis

data Selector
- = TupleSel Int (Maybe Int)
- | RecordSel Ident (Maybe [Ident])
- | ListSel Int (Maybe Int)
ppSelector :: Selector -> Doc
ppNestedSels :: [Selector] -> Doc
selName :: Selector -> Ident

Documentation

data Selector Source #

Selectors are used for projecting from various components. Each selector has an option spec to specify the shape of the thing that is being selected. Currently, there is no surface syntax for list selectors, but they are used during the desugaring of patterns.

Constructors

TupleSel Int (Maybe Int)	Zero-based tuple selection. Optionally specifies the shape of the tuple (one-based).
RecordSel Ident (Maybe [Ident])	Record selection. Optionally specifies the shape of the record.
ListSel Int (Maybe Int)	List selection. Optionally specifies the length of the list.

Instances

Eq Selector Source #
Instance details Defined in Cryptol.Parser.Selector Methods (==) :: Selector -> Selector -> Bool # (/=) :: Selector -> Selector -> Bool #
Ord Selector Source #
Instance details Defined in Cryptol.Parser.Selector Methods compare :: Selector -> Selector -> Ordering # (<) :: Selector -> Selector -> Bool # (<=) :: Selector -> Selector -> Bool # (>) :: Selector -> Selector -> Bool # (>=) :: Selector -> Selector -> Bool # max :: Selector -> Selector -> Selector # min :: Selector -> Selector -> Selector #
Show Selector Source #
Instance details Defined in Cryptol.Parser.Selector Methods showsPrec :: Int -> Selector -> ShowS # show :: Selector -> String # showList :: [Selector] -> ShowS #
Generic Selector Source #
Instance details Defined in Cryptol.Parser.Selector Associated Types type Rep Selector :: Type -> Type # Methods from :: Selector -> Rep Selector x # to :: Rep Selector x -> Selector #
NFData Selector Source #
Instance details Defined in Cryptol.Parser.Selector Methods rnf :: Selector -> () #
PP Selector Source #
Instance details Defined in Cryptol.Parser.Selector Methods ppPrec :: Int -> Selector -> Doc Source #
ShowParseable Selector Source #
Instance details Defined in Cryptol.TypeCheck.Parseable Methods showParseable :: Selector -> Doc Source #
type Rep Selector Source #
Instance details Defined in Cryptol.Parser.Selector type Rep Selector = D1 (MetaData "Selector" "Cryptol.Parser.Selector" "cryptol-2.9.0-4aSi1YZNBynFQwh9aOpllR" False) (C1 (MetaCons "TupleSel" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int) :: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe Int))) :+: (C1 (MetaCons "RecordSel" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Ident) :: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe [Ident]))) :+: C1 (MetaCons "ListSel" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Int) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe Int)))))

ppSelector :: Selector -> Doc Source #

Display the thing selected by the selector, nicely.

ppNestedSels :: [Selector] -> Doc Source #

Show a list of selectors as they appear in a nested selector in an update.

selName :: Selector -> Ident Source #

The name of a selector (e.g., used in update code)