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vm: increase BigInt parsing precision

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Follow the https://github.com/neo-project/neo/pull/2883.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This commit is contained in:
Anna Shaleva 2023-08-03 15:52:12 +03:00
parent 562293c74b
commit d90608ddbf
2 changed files with 6 additions and 6 deletions
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6
pkg/vm/stackitem/json.go
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@ -27,9 +27,9 @@ const MaxAllowedInteger = 2<<53 - 1
const MaxJSONDepth = 10
// MaxIntegerPrec is the maximum precision allowed for big.Integer parsing.
// It equals to the reference value and doesn't allow to precisely parse big
// numbers, see the https://github.com/neo-project/neo/issues/2879.
const MaxIntegerPrec = 53
// It allows to properly parse integer numbers that our 256-bit VM is able to
// handle.
const MaxIntegerPrec = 1<<8 + 1
// ErrInvalidValue is returned when an item value doesn't fit some constraints
// during serialization or deserialization.

6
pkg/vm/stackitem/json_test.go
View file

@ -134,10 +134,10 @@ func TestFromToJSON(t *testing.T) {
// the C# one, ref. https://github.com/neo-project/neo/issues/2879.
func TestFromJSON_CompatBigInt(t *testing.T) {
tcs := map[string]string{
`9.05e+28`: "90499999999999993918259200000",
`9.05e+28`: "90500000000000000000000000000",
`1.871e+21`: "1871000000000000000000",
`3.0366e+32`: "303660000000000004445016810323968",
`1e+30`: "1000000000000000019884624838656",
`3.0366e+32`: "303660000000000000000000000000000",
`1e+30`: "1000000000000000000000000000000",
}
for in, expected := range tcs {
t.Run(in, func(t *testing.T) {