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add explicite Show instance for SimpleSyntaxString to show hex strings properly #6

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add explicite Show instance for SimpleSyntaxString to show hex strings properly #6

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13 changes: 12 additions & 1 deletion src/Snmp/Types.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,8 +6,13 @@ module Snmp.Types where
import Language.Asn.Types
import Data.Int (Int32)
import Data.Word (Word8,Word32,Word64)
import Data.Bool (bool)
import Data.ByteString (ByteString)
import Data.ByteString.Char8 (all)
import Data.ByteString.Builder (byteStringHex, toLazyByteString)
import Data.Char (isPrint)
import Data.Vector (Vector)
import Prelude hiding (all)

newtype RequestId = RequestId { getRequestId :: Int }
deriving (Eq,Ord,Show,Read)
Expand All @@ -25,7 +30,13 @@ data SimpleSyntax
= SimpleSyntaxInteger !Int32
| SimpleSyntaxString !ByteString
| SimpleSyntaxObjectId !ObjectIdentifier
deriving (Eq,Show)
deriving (Eq)

instance Show SimpleSyntax where
show (SimpleSyntaxInteger v) = "SimpleSyntaxInteger " <> show v
show (SimpleSyntaxObjectId v) = "SimpleSyntaxObjectId " <> show v
show (SimpleSyntaxString v) = "SimpleSyntaxString "
<> bool (show $ (toLazyByteString . byteStringHex) v) (show v) (all isPrint v)

data ApplicationSyntax
= ApplicationSyntaxIpAddress !Word32
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