mirror of
https://github.com/ethereum/go-ethereum.git
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30 lines
No EOL
1,022 B
Go
30 lines
No EOL
1,022 B
Go
package contracts
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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)
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func getLocSimpleVariable (slot uint64) common.Hash {
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slotHash := common.BigToHash(new(big.Int).SetUint64(slot))
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return slotHash
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}
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func getLocMappingAtKey (key common.Hash, slot uint64) common.Hash {
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slotHash := common.BigToHash(new(big.Int).SetUint64(slot))
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return crypto.Keccak256Hash(key.Bytes(), slotHash.Bytes())
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}
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func getLocDynamicArrAtElement (slotHash common.Hash, index uint64, elementSize uint64) common.Hash {
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slotKecBig := crypto.Keccak256Hash(slotHash.Bytes()).Big()
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//arrBig = slotKecBig + index * elementSize
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arrBig := slotKecBig.Add(slotKecBig, new(big.Int).SetUint64(index * elementSize))
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return common.BigToHash(arrBig)
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}
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func getLocFixedArrAtElement (slot uint64, index uint64, elementSize uint64) common.Hash {
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slotBig := new(big.Int).SetUint64(slot)
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arrBig := slotBig.Add(slotBig, new(big.Int).SetUint64(index * elementSize))
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return common.BigToHash(arrBig)
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} |