Agda-2.6.3.20230930: A dependently typed functional programming language and proof assistant
Safe HaskellSafe-Inferred
LanguageHaskell2010

Agda.Syntax.Concrete.Operators.Parser.Monad

Description

The parser monad used by the operator parser

Synopsis

Documentation

data MemoKey Source #

Memoisation keys.

Instances

Instances details
Generic MemoKey Source # 
Instance details

Defined in Agda.Syntax.Concrete.Operators.Parser.Monad

Associated Types

type Rep MemoKey :: Type -> Type

Methods

from :: MemoKey -> Rep MemoKey x

to :: Rep MemoKey x -> MemoKey

Show MemoKey Source # 
Instance details

Defined in Agda.Syntax.Concrete.Operators.Parser.Monad

Methods

showsPrec :: Int -> MemoKey -> ShowS

show :: MemoKey -> String

showList :: [MemoKey] -> ShowS

Eq MemoKey Source # 
Instance details

Defined in Agda.Syntax.Concrete.Operators.Parser.Monad

Methods

(==) :: MemoKey -> MemoKey -> Bool

(/=) :: MemoKey -> MemoKey -> Bool

Hashable MemoKey Source # 
Instance details

Defined in Agda.Syntax.Concrete.Operators.Parser.Monad

Methods

hashWithSalt :: Int -> MemoKey -> Int

hash :: MemoKey -> Int

type Rep MemoKey Source # 
Instance details

Defined in Agda.Syntax.Concrete.Operators.Parser.Monad

type Rep MemoKey = D1 ('MetaData "MemoKey" "Agda.Syntax.Concrete.Operators.Parser.Monad" "Agda-2.6.3.20230930-inplace" 'False) ((C1 ('MetaCons "NodeK" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 PrecedenceKey)) :+: (C1 ('MetaCons "PostLeftsK" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 PrecedenceKey)) :+: C1 ('MetaCons "PreRightsK" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 PrecedenceKey)))) :+: (C1 ('MetaCons "TopK" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "AppK" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "NonfixK" 'PrefixI 'False) (U1 :: Type -> Type))))

type Parser tok a = Parser MemoKey tok (MaybePlaceholder tok) a Source #

The parser monad.

parse :: forall tok a. Parser tok a -> [MaybePlaceholder tok] -> [a] Source #

Runs the parser.

sat' :: (MaybePlaceholder tok -> Maybe a) -> Parser tok a Source #

Parses a token satisfying the given predicate. The computed value is returned.

sat :: (MaybePlaceholder tok -> Bool) -> Parser tok (MaybePlaceholder tok) Source #

Parses a token satisfying the given predicate.

doc :: Doc -> Parser tok a -> Parser tok a Source #

Uses the given document as the printed representation of the given parser. The document's precedence is taken to be atomP.

memoise :: MemoKey -> Parser tok tok -> Parser tok tok Source #

Memoises the given parser.

Every memoised parser must be annotated with a unique key. (Parametrised parsers must use distinct keys for distinct inputs.)

memoiseIfPrinting :: MemoKey -> Parser tok tok -> Parser tok tok Source #

Memoises the given parser, but only if printing, not if parsing.

Every memoised parser must be annotated with a unique key. (Parametrised parsers must use distinct keys for distinct inputs.)

grammar :: Parser tok a -> Doc Source #

Tries to print the parser, or returns empty, depending on the implementation. This function might not terminate.