40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
package types
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import (
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"bytes"
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"math"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/ethereum/go-ethereum/common"
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)
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// IsEmptyHash returns true if the hash corresponds to an empty ethereum hex hash.
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func IsEmptyHash(hash string) bool {
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return bytes.Equal(common.HexToHash(hash).Bytes(), common.Hash{}.Bytes())
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}
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// IsZeroAddress returns true if the address corresponds to an empty ethereum hex address.
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func IsZeroAddress(address string) bool {
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return bytes.Equal(common.HexToAddress(address).Bytes(), common.Address{}.Bytes())
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}
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// ValidateAddress returns an error if the provided string is either not a hex formatted string address
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func ValidateAddress(address string) error {
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if !common.IsHexAddress(address) {
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return sdkerrors.Wrapf(
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sdkerrors.ErrInvalidAddress, "address '%s' is not a valid ethereum hex address",
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address,
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)
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}
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return nil
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}
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// SafeInt64 checks for overflows while casting a uint64 to int64 value.
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func SafeInt64(value uint64) (int64, error) {
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if value > uint64(math.MaxInt64) {
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return 0, sdkerrors.Wrapf(sdkerrors.ErrInvalidHeight, "uint64 value %v cannot exceed %v", value, int64(math.MaxInt64))
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}
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return int64(value), nil
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}
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