Library Coq.extraction.ExtrHaskellString
At the moment, Coq's extraction has no way to add extra import
statements to the extracted Haskell code. You will have to
manually add:
*import qualified Data.Bits
import qualified Data.Char
Extract Inductive ascii => "Prelude.Char"
[ "(\b0 b1 b2 b3 b4 b5 b6 b7 -> Data.Char.chr ( (if b0 then Data.Bits.shiftL 1 0 else 0) Prelude.+ (if b1 then Data.Bits.shiftL 1 1 else 0) Prelude.+ (if b2 then Data.Bits.shiftL 1 2 else 0) Prelude.+ (if b3 then Data.Bits.shiftL 1 3 else 0) Prelude.+ (if b4 then Data.Bits.shiftL 1 4 else 0) Prelude.+ (if b5 then Data.Bits.shiftL 1 5 else 0) Prelude.+ (if b6 then Data.Bits.shiftL 1 6 else 0) Prelude.+ (if b7 then Data.Bits.shiftL 1 7 else 0)))" ]
"(\f a -> f (Data.Bits.testBit (Data.Char.ord a) 0) (Data.Bits.testBit (Data.Char.ord a) 1) (Data.Bits.testBit (Data.Char.ord a) 2) (Data.Bits.testBit (Data.Char.ord a) 3) (Data.Bits.testBit (Data.Char.ord a) 4) (Data.Bits.testBit (Data.Char.ord a) 5) (Data.Bits.testBit (Data.Char.ord a) 6) (Data.Bits.testBit (Data.Char.ord a) 7))".
Extract Inlined Constant Ascii.ascii_dec => "(Prelude.==)".
Extract Inlined Constant Ascii.eqb => "(Prelude.==)".
Extract Inductive string => "Prelude.String" [ "([])" "(:)" ].
Extract Inlined Constant String.string_dec => "(Prelude.==)".
Extract Inlined Constant String.eqb => "(Prelude.==)".