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fix: chunk memory leak, bug fix #491

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merged 1 commit into from
Jul 15, 2024
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fix: chunk memory leak, bug fix #491

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2 changes: 1 addition & 1 deletion slice.go
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Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,7 @@ func Chunk[T any, Slice ~[]T](collection Slice, size int) []Slice {
if last > len(collection) {
last = len(collection)
}
result = append(result, collection[i*size:last])
result = append(result, collection[i*size:last:last])
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I had never faced this notation, with the capacity apparently

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ref: https://stackoverflow.com/questions/12768744/re-slicing-slices-in-golang/18911267#18911267

}

return result
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6 changes: 6 additions & 0 deletions slice_test.go
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Expand Up @@ -235,6 +235,12 @@ func TestChunk(t *testing.T) {
allStrings := myStrings{"", "foo", "bar"}
nonempty := Chunk(allStrings, 2)
is.IsType(nonempty[0], allStrings, "type preserved")

// appending to a chunk should not affect original array
originalArray := []int{0, 1, 2, 3, 4, 5}
result5 := Chunk(originalArray, 2)
result5[0] = append(result5[0], 6)
is.Equal(originalArray, []int{0, 1, 2, 3, 4, 5})
Comment on lines +239 to +243
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So. it's not only a fix of a possible memory leak, but also a functional fix, no?

I'm unsure why you are adding this check.no computer with me to check.

My point is that the commit message could mention a memory leak fix + bug fix, maybe

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yeah, updated the title

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Thanks

}

func TestPartitionBy(t *testing.T) {
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