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utils.go
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utils.go
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/*
* Copyright 2019 ObjectBox Ltd. All rights reserved.
*
* 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 fbutils provides utilities for the FlatBuffers in ObjectBox
package fbutils
import "github.com/google/flatbuffers/go"
func CreateStringOffset(fbb *flatbuffers.Builder, value string) flatbuffers.UOffsetT {
return fbb.CreateString(value)
}
func CreateByteVectorOffset(fbb *flatbuffers.Builder, value []byte) flatbuffers.UOffsetT {
if value == nil {
return 0
}
return fbb.CreateByteVector(value)
}
func CreateStringVectorOffset(fbb *flatbuffers.Builder, values []string) flatbuffers.UOffsetT {
if values == nil {
return 0
}
var offsets = make([]flatbuffers.UOffsetT, len(values))
for i, v := range values {
offsets[i] = fbb.CreateString(v)
}
return createOffsetVector(fbb, offsets)
}
func createOffsetVector(fbb *flatbuffers.Builder, offsets []flatbuffers.UOffsetT) flatbuffers.UOffsetT {
fbb.StartVector(int(flatbuffers.SizeUOffsetT), len(offsets), int(flatbuffers.SizeUOffsetT))
for i := len(offsets) - 1; i >= 0; i-- {
fbb.PrependUOffsetT(offsets[i])
}
return fbb.EndVector(len(offsets))
}