easyice commented on code in PR #12841:
URL: https://github.com/apache/lucene/pull/12841#discussion_r1420812950
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lucene/core/src/java21/org/apache/lucene/store/MemorySegmentIndexInput.java:
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@@ -324,24 +324,9 @@ private void readGroupVInt(long[] dst, int offset) throws
IOException {
try {
final int flag = curSegment.get(LAYOUT_BYTE, curPosition++) & 0xFF;
-
- final int n1Minus1 = flag >> 6;
- final int n2Minus1 = (flag >> 4) & 0x03;
- final int n3Minus1 = (flag >> 2) & 0x03;
- final int n4Minus1 = flag & 0x03;
-
- dst[offset] =
- curSegment.get(LAYOUT_LE_INT, curPosition) &
GroupVIntUtil.GROUP_VINT_MASKS[n1Minus1];
- curPosition += 1 + n1Minus1;
- dst[offset + 1] =
- curSegment.get(LAYOUT_LE_INT, curPosition) &
GroupVIntUtil.GROUP_VINT_MASKS[n2Minus1];
- curPosition += 1 + n2Minus1;
- dst[offset + 2] =
- curSegment.get(LAYOUT_LE_INT, curPosition) &
GroupVIntUtil.GROUP_VINT_MASKS[n3Minus1];
- curPosition += 1 + n3Minus1;
- dst[offset + 3] =
- curSegment.get(LAYOUT_LE_INT, curPosition) &
GroupVIntUtil.GROUP_VINT_MASKS[n4Minus1];
- curPosition += 1 + n4Minus1;
+ curPosition +=
+ GroupVIntUtil.readGroupVInt(
+ flag, p -> curSegment.get(LAYOUT_LE_INT, p), curPosition, dst,
offset);
Review Comment:
emmm... we use `curSegment.get(LAYOUT_BYTE, curPosition++)` to read flag
byte, so `curPosition++` will increment the read pos , is that right?
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