decaf-0.1.0.0
Safe HaskellSafe-Inferred
LanguageHaskell2010

Lexer

Synopsis

Documentation

data Token Source #

Lexer tokens.

Constructors

Keyword !Text 
Identifier !Text 
CharLiteral !Text 
IntLiteral !Text 
BooleanLiteral !Text 
StringLiteral !Text 
AssignOp 
CompoundAssignOp !Text 
IncrementOp !Text 
ArithmeticOp !Text 
RelationOp !Text 
EquationOp !Text 
ConditionOp !Text 
LCurly 
RCurly 
LParen 
RParen 
LBrack 
RBrack 
Choice 
Colon 
Semicolon 
Comma 
Negate 
EOF 

Instances

Instances details
Show Token Source # 
Instance details

Defined in Lexer.Token

Methods

showsPrec :: Int -> Token -> ShowS #

show :: Token -> String #

showList :: [Token] -> ShowS #

Eq Token Source # 
Instance details

Defined in Lexer.Token

Methods

(==) :: Token -> Token -> Bool #

(/=) :: Token -> Token -> Bool #

newtype Alex a Source #

Constructors

Alex 

Fields

Instances

Instances details
Applicative Alex Source # 
Instance details

Defined in Lexer.Lex

Methods

pure :: a -> Alex a #

(<*>) :: Alex (a -> b) -> Alex a -> Alex b #

liftA2 :: (a -> b -> c) -> Alex a -> Alex b -> Alex c #

(*>) :: Alex a -> Alex b -> Alex b #

(<*) :: Alex a -> Alex b -> Alex a #

Functor Alex Source # 
Instance details

Defined in Lexer.Lex

Methods

fmap :: (a -> b) -> Alex a -> Alex b #

(<$) :: a -> Alex b -> Alex a #

Monad Alex Source # 
Instance details

Defined in Lexer.Lex

Methods

(>>=) :: Alex a -> (a -> Alex b) -> Alex b #

(>>) :: Alex a -> Alex b -> Alex b #

return :: a -> Alex a #

data AlexState Source #

Constructors

AlexState 

Fields

data AlexUserState Source #

Constructors

AlexUserState 

Fields

scan :: ByteString -> Either [CompileError] [Located Token] Source #

alexMonadScan :: Alex (Located Token) Source #

runAlex :: ByteString -> Alex a -> Either String a Source #

addError :: CompileError -> Alex () Source #

alexError :: String -> Alex a Source #

getAlexState :: Alex AlexState Source #