proost commented on code in PR #108:
URL: https://github.com/apache/datasketches-go/pull/108#discussion_r2723790034
##########
sampling/varopt_items_sketch.go:
##########
@@ -524,3 +529,256 @@ func (s *VarOptItemsSketch[T]) adjustedSize(maxSize,
resizeTarget int) int {
}
return maxSize
}
+
+// VarOptItemsSketchEncoder writes a Java-compatible VarOpt sketch to an
io.Writer.
+type VarOptItemsSketchEncoder[T any] struct {
+ w io.Writer
+ serde ItemsSerDe[T]
+}
+
+// NewVarOptItemsSketchEncoder creates an encoder with the provided writer and
serde.
+func NewVarOptItemsSketchEncoder[T any](w io.Writer, serde ItemsSerDe[T])
*VarOptItemsSketchEncoder[T] {
Review Comment:
Can you return value not pointer? returning pointer can be allocated in
heap. Encoder is used once to encoding. I don't think it has long life cycle.
So avoiding allocated in heap is good.
```
sampling/varopt_items_sketch.go:541:9:
&VarOptItemsSketchEncoder[go.shape.string]{...} escapes to heap in
NewVarOptItemsSketchEncoder[go.shape.string]:
```
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