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drop unused functions from previous unmarshal implementation

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This commit is contained in:
Seebs 2019-07-25 16:11:57 -05:00
parent 2d9ca0888f
commit 1d732e4b7f
1 changed files with 0 additions and 57 deletions
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57
roaring/roaring.go
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@ -5156,63 +5156,6 @@ func readOfficialHeader(buf []byte) (size uint32, containerTyper func(index uint
return size, containerTyper, header, pos, haveRuns, err
}
func readOffsets(b *Bitmap, data []byte, pos int, keyN uint32) error {
citer, _ := b.Containers.Iterator(0)
for i, buf := 0, data[pos:]; i < int(keyN); i, buf = i+1, buf[4:] {
// Verify the offset is fully formed
if len(buf) < 4 {
return fmt.Errorf("offset incomplete: len=%d", len(buf))
}
offset := binary.LittleEndian.Uint32(buf[0:4])
// Verify the offset is within the bounds of the input data.
if int(offset) >= len(data) {
return fmt.Errorf("offset out of bounds: off=%d, len=%d", offset, len(data))
}
// Map byte slice directly to the container data.
citer.Next()
_, c := citer.Value()
switch c.typ() {
case containerArray:
c.setArray((*[0xFFFFFFF]uint16)(unsafe.Pointer(&data[offset]))[:c.N():c.N()])
case containerBitmap:
c.setBitmap((*[0xFFFFFFF]uint64)(unsafe.Pointer(&data[offset]))[:bitmapN:bitmapN])
default:
return fmt.Errorf("unsupported container type %d", c.typ())
}
}
return nil
}
func readWithRuns(b *Bitmap, data []byte, pos int, keyN uint32) error {
if len(data) < pos+runCountHeaderSize {
return fmt.Errorf("offset incomplete: len=%d", len(data))
}
citer, _ := b.Containers.Iterator(0)
for i := 0; i < int(keyN); i++ {
citer.Next()
_, c := citer.Value()
switch c.typ() {
case containerRun:
runCount := binary.LittleEndian.Uint16(data[pos : pos+runCountHeaderSize])
c.setRuns((*[0xFFFFFFF]interval16)(unsafe.Pointer(&data[pos+runCountHeaderSize]))[:runCount:runCount])
runs := c.runs()
for o := range runs { // must convert from start:length to start:end :(
runs[o].last = runs[o].start + runs[o].last
}
pos += int((runCount * interval16Size) + runCountHeaderSize)
case containerArray:
c.setArray((*[0xFFFFFFF]uint16)(unsafe.Pointer(&data[pos]))[:c.N():c.N()])
pos += int(c.N() * 2)
case containerBitmap:
c.setBitmap((*[0xFFFFFFF]uint64)(unsafe.Pointer(&data[pos]))[:bitmapN:bitmapN])
pos += bitmapN * 8
}
}
return nil
}
// handledIter and handledIters are wrappers around Bitmap Container iterators
// and assist with the unionIntoTarget algorithm by abstracting away some tedious
// operations.