Skip to content

Warn about possible exceptions during file decoding #1022

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Warn about possible exceptions during file decoding #1022

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions src/Data/Aeson.hs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -219,6 +219,8 @@ decodeStrict = decodeStrictWith jsonEOF fromJSON
--
-- This function parses immediately, but defers conversion. See
-- 'json' for details.
--
-- Throws an 'Exception' when the file is missing.
decodeFileStrict :: (FromJSON a) => FilePath -> IO (Maybe a)
decodeFileStrict = fmap decodeStrict . B.readFile

Expand Down Expand Up @@ -257,6 +259,8 @@ decodeStrict' = decodeStrictWith jsonEOF' fromJSON
--
-- This function parses and performs conversion immediately. See
-- 'json'' for details.
--
-- Throws an 'Exception' when the file is missing.
decodeFileStrict' :: (FromJSON a) => FilePath -> IO (Maybe a)
decodeFileStrict' = fmap decodeStrict' . B.readFile

Expand All @@ -276,6 +280,8 @@ eitherDecodeStrict =
{-# INLINE eitherDecodeStrict #-}

-- | Like 'decodeFileStrict' but returns an error message when decoding fails.
--
-- Throws an 'Exception' when the file is missing.
eitherDecodeFileStrict :: (FromJSON a) => FilePath -> IO (Either String a)
eitherDecodeFileStrict =
fmap eitherDecodeStrict . B.readFile
Expand All @@ -293,6 +299,8 @@ eitherDecodeStrict' =
{-# INLINE eitherDecodeStrict' #-}

-- | Like 'decodeFileStrict'' but returns an error message when decoding fails.
--
-- Throws an 'Exception' when the file is missing.
eitherDecodeFileStrict' :: (FromJSON a) => FilePath -> IO (Either String a)
eitherDecodeFileStrict' =
fmap eitherDecodeStrict' . B.readFile
Expand Down