mirror of https://go.googlesource.com/go
compress: reordering fields to reduce struct sizes
Overall, there are 32 bytes reduced. Change-Id: I455bf0874b33fa47719f42618e4800c7ff2a9e88 GitHub-Last-Rev: 7670344c4a643afdec0fdae3d34fdb8ccd81205f GitHub-Pull-Request: golang/go#67010 Reviewed-on: https://go-review.googlesource.com/c/go/+/581355 Reviewed-by: Joedian Reid <joedian@google.com> Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Keith Randall <khr@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@golang.org>changes/55/581355/2
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@ -27,8 +27,8 @@ type reader struct {
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blockCRC uint32
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wantBlockCRC uint32
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setupDone bool // true if we have parsed the bzip2 header.
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blockSize int // blockSize in bytes, i.e. 900 * 1000.
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eof bool
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blockSize int // blockSize in bytes, i.e. 900 * 1000.
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c [256]uint // the ``C'' array for the inverse BWT.
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tt []uint32 // mirrors the ``tt'' array in the bzip2 source and contains the P array in the upper 24 bits.
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tPos uint32 // Index of the next output byte in tt.
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@ -87,7 +87,6 @@ type compressor struct {
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// compression algorithm
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fill func(*compressor, []byte) int // copy data to window
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step func(*compressor) // process window
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sync bool // requesting flush
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bestSpeed *deflateFast // Encoder for BestSpeed
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// Input hash chains
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@ -107,6 +106,8 @@ type compressor struct {
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blockStart int // window index where current tokens start
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byteAvailable bool // if true, still need to process window[index-1].
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sync bool // requesting flush
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// queued output tokens
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tokens []token
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@ -30,11 +30,11 @@ type Writer struct {
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w io.Writer
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level int
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wroteHeader bool
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closed bool
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buf [10]byte
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compressor *flate.Writer
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digest uint32 // CRC-32, IEEE polynomial (section 8)
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size uint32 // Uncompressed size (section 2.3.1)
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closed bool
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buf [10]byte
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err error
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}
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@ -36,15 +36,15 @@ const (
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type Writer struct {
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// w is the writer that compressed bytes are written to.
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w writer
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// litWidth is the width in bits of literal codes.
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litWidth uint
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// order, write, bits, nBits and width are the state for
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// converting a code stream into a byte stream.
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order Order
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write func(*Writer, uint32) error
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bits uint32
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nBits uint
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width uint
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// litWidth is the width in bits of literal codes.
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litWidth uint
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bits uint32
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// hi is the code implied by the next code emission.
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// overflow is the code at which hi overflows the code width.
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hi, overflow uint32
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