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accounts/abi: fix bigInt topic encoding #28764

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merged 1 commit into from
Jan 9, 2024
+24 −5
Merged

accounts/abi: fix bigInt topic encoding #28764

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4 changes: 2 additions & 2 deletions accounts/abi/topics.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import (
"reflect"

"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/crypto"
)

Expand All @@ -41,8 +42,7 @@ func MakeTopics(query ...[]interface{}) ([][]common.Hash, error) {
case common.Address:
copy(topic[common.HashLength-common.AddressLength:], rule[:])
case *big.Int:
blob := rule.Bytes()
copy(topic[common.HashLength-len(blob):], blob)
copy(topic[:], math.U256Bytes(rule))
case bool:
if rule {
topic[common.HashLength-1] = 1
Expand Down
25 changes: 22 additions & 3 deletions accounts/abi/topics_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
package abi

import (
"math"
"math/big"
"reflect"
"testing"
Expand Down Expand Up @@ -55,9 +56,27 @@ func TestMakeTopics(t *testing.T) {
false,
},
{
"support *big.Int types in topics",
args{[][]interface{}{{big.NewInt(1).Lsh(big.NewInt(2), 254)}}},
[][]common.Hash{{common.Hash{128}}},
"support positive *big.Int types in topics",
args{[][]interface{}{
{big.NewInt(1)},
{big.NewInt(1).Lsh(big.NewInt(2), 254)},
}},
[][]common.Hash{
{common.HexToHash("0000000000000000000000000000000000000000000000000000000000000001")},
{common.Hash{128}},
},
false,
},
{
"support negative *big.Int types in topics",
args{[][]interface{}{
{big.NewInt(-1)},
{big.NewInt(math.MinInt64)},
}},
[][]common.Hash{
{common.MaxHash},
{common.HexToHash("ffffffffffffffffffffffffffffffffffffffffffffffff8000000000000000")},
},
false,
},
{
Expand Down
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