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Code Issues Releases Activity

Reduce allocations in sortKeysMapEncoder

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Use one buffer for all values.
This commit is contained in:
Aaron Beitch 2019-12-03 11:50:15 -08:00
parent 44a7e7340d
commit f814d6c0f1
1 changed files with 3 additions and 3 deletions
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6
reflect_map.go
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@ -293,13 +293,13 @@ func (encoder *sortKeysMapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
subIter := stream.cfg.BorrowIterator(nil) subIter := stream.cfg.BorrowIterator(nil)
keyValues := encodedKeyValues{} keyValues := encodedKeyValues{}
for mapIter.HasNext() { for mapIter.HasNext() {
subStream.buf = make([]byte, 0, 64)
key, elem := mapIter.UnsafeNext() key, elem := mapIter.UnsafeNext()
subStreamIndex := subStream.Buffered()
encoder.keyEncoder.Encode(key, subStream) encoder.keyEncoder.Encode(key, subStream)
if subStream.Error != nil && subStream.Error != io.EOF && stream.Error == nil { if subStream.Error != nil && subStream.Error != io.EOF && stream.Error == nil {
stream.Error = subStream.Error stream.Error = subStream.Error
} }
encodedKey := subStream.Buffer() encodedKey := subStream.Buffer()[subStreamIndex:]
subIter.ResetBytes(encodedKey) subIter.ResetBytes(encodedKey)
decodedKey := subIter.ReadString() decodedKey := subIter.ReadString()
if stream.indention > 0 { if stream.indention > 0 {
@ -310,7 +310,7 @@ func (encoder *sortKeysMapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
encoder.elemEncoder.Encode(elem, subStream) encoder.elemEncoder.Encode(elem, subStream)
keyValues = append(keyValues, encodedKV{ keyValues = append(keyValues, encodedKV{
key: decodedKey, key: decodedKey,
keyValue: subStream.Buffer(), keyValue: subStream.Buffer()[subStreamIndex:],
}) })
} }
sort.Sort(keyValues) sort.Sort(keyValues)