ipld-eth-server/pkg/transformers/shared/utilities.go

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// Copyright 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package shared
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import (
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
"math/big"
)
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func BigIntToInt64(value *big.Int) int64 {
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if value == nil {
return int64(0)
} else {
return value.Int64()
}
}
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func BigIntToString(value *big.Int) string {
result := value.String()
if result == "<nil>" {
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return ""
} else {
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return result
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}
}
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func GetDataBytesAtIndex(n int, logData []byte) []byte {
switch {
case n == -1:
return logData[len(logData)-constants.DataItemLength:]
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case n == -2:
return logData[len(logData)-(2*constants.DataItemLength) : len(logData)-constants.DataItemLength]
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case n == -3:
return logData[len(logData)-(3*constants.DataItemLength) : len(logData)-(2*constants.DataItemLength)]
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}
return []byte{}
}