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lib,test: Simplify the JSON representation of AmountPrecision.

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It now uses the same JSON representation as Maybe Word8. This means that
the JSON serialisation is now broadly compatible with that used before the
commit f6fa76bba7, differing only in
how it handles numbers outside Word8 and that it can now produce null
for NaturalPrecision.
This commit is contained in:
Stephen Morgan 2021-03-22 14:17:42 +11:00 committed by Simon Michael
parent eab66de2ca
commit b6e20dea13
2 changed files with 128 additions and 2 deletions
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15
hledger-lib/Hledger/Data/Json.hs
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@ -10,6 +10,7 @@ JSON instances. Should they be in Types.hs ?
{-# LANGUAGE DeriveGeneric #-}
--{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE LambdaCase #-}
--{-# LANGUAGE NamedFieldPuns #-}
--{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE OverloadedStrings #-}
@ -89,7 +90,13 @@ instance ToJSON Decimal where
instance ToJSON Amount
instance ToJSON AmountStyle
instance ToJSON AmountPrecision
-- Use the same JSON serialisation as Maybe Word8
instance ToJSON AmountPrecision where
toJSON = toJSON . \case
Precision n -> Just n
NaturalPrecision -> Nothing
instance ToJSON Side
instance ToJSON DigitGroupStyle
instance ToJSON MixedAmount
@ -160,7 +167,11 @@ instance FromJSON Status
instance FromJSON GenericSourcePos
instance FromJSON Amount
instance FromJSON AmountStyle
instance FromJSON AmountPrecision
-- Use the same JSON serialisation as Maybe Word8
instance FromJSON AmountPrecision where
parseJSON = fmap (maybe NaturalPrecision Precision) . parseJSON
instance FromJSON Side
instance FromJSON DigitGroupStyle
instance FromJSON MixedAmount

115
hledger/test/json.test Normal file
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@ -0,0 +1,115 @@
<
2019-1-1
(a) 1.0 AAA
# 1. Test the json output for register reports
$ hledger -f- reg --output-format=json
[
[
"2019-01-01",
null,
"",
{
"pbalanceassertion": null,
"pstatus": "Unmarked",
"pamount": [
{
"aprice": null,
"acommodity": "AAA",
"aquantity": {
"floatingPoint": 1,
"decimalPlaces": 10,
"decimalMantissa": 10000000000
},
"aismultiplier": false,
"astyle": {
"ascommodityside": "R",
"asdigitgroups": null,
"ascommodityspaced": true,
"asprecision": 1,
"asdecimalpoint": "."
}
}
],
"ptransaction_": "1",
"paccount": "a",
"pdate": null,
"ptype": "VirtualPosting",
"pcomment": "",
"pdate2": null,
"ptags": [],
"poriginal": null
},
[
{
"aprice": null,
"acommodity": "AAA",
"aquantity": {
"floatingPoint": 1,
"decimalPlaces": 10,
"decimalMantissa": 10000000000
},
"aismultiplier": false,
"astyle": {
"ascommodityside": "R",
"asdigitgroups": null,
"ascommodityspaced": true,
"asprecision": 1,
"asdecimalpoint": "."
}
}
]
]
]
# 2. Test the json output for balance reports
$ hledger -f- bal --output-format=json
[
[
[
"a",
"a",
0,
[
{
"aprice": null,
"acommodity": "AAA",
"aquantity": {
"floatingPoint": 1,
"decimalPlaces": 10,
"decimalMantissa": 10000000000
},
"aismultiplier": false,
"astyle": {
"ascommodityside": "R",
"asdigitgroups": null,
"ascommodityspaced": true,
"asprecision": 1,
"asdecimalpoint": "."
}
}
]
]
],
[
{
"aprice": null,
"acommodity": "AAA",
"aquantity": {
"floatingPoint": 1,
"decimalPlaces": 10,
"decimalMantissa": 10000000000
},
"aismultiplier": false,
"astyle": {
"ascommodityside": "R",
"asdigitgroups": null,
"ascommodityspaced": true,
"asprecision": 1,
"asdecimalpoint": "."
}
}
]
]
>=0