diff options
Diffstat (limited to 'src/pkg/compress/flate/token.go')
| -rw-r--r-- | src/pkg/compress/flate/token.go | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/pkg/compress/flate/token.go b/src/pkg/compress/flate/token.go index 139e1d0da..38aea5fa6 100644 --- a/src/pkg/compress/flate/token.go +++ b/src/pkg/compress/flate/token.go @@ -8,11 +8,11 @@ const ( // 2 bits: type 0 = literal 1=EOF 2=Match 3=Unused // 8 bits: xlength = length - MIN_MATCH_LENGTH // 22 bits xoffset = offset - MIN_OFFSET_SIZE, or literal - lengthShift = 22; - offsetMask = 1<<lengthShift - 1; - typeMask = 3 << 30; - literalType = 0 << 30; - matchType = 1 << 30; + lengthShift = 22 + offsetMask = 1<<lengthShift - 1 + typeMask = 3 << 30 + literalType = 0 << 30 + matchType = 1 << 30 ) // The length code for length X (MIN_MATCH_LENGTH <= X <= MAX_MATCH_LENGTH) @@ -68,7 +68,7 @@ var offsetCodes = [...]uint32{ type token uint32 // Convert a literal into a literal token. -func literalToken(literal uint32) token { return token(literalType + literal) } +func literalToken(literal uint32) token { return token(literalType + literal) } // Convert a < xlength, xoffset > pair into a match token. func matchToken(xlength uint32, xoffset uint32) token { @@ -76,21 +76,21 @@ func matchToken(xlength uint32, xoffset uint32) token { } // Returns the type of a token -func (t token) typ() uint32 { return uint32(t) & typeMask } +func (t token) typ() uint32 { return uint32(t) & typeMask } // Returns the literal of a literal token -func (t token) literal() uint32 { return uint32(t - literalType) } +func (t token) literal() uint32 { return uint32(t - literalType) } // Returns the extra offset of a match token -func (t token) offset() uint32 { return uint32(t) & offsetMask } +func (t token) offset() uint32 { return uint32(t) & offsetMask } -func (t token) length() uint32 { return uint32((t - matchType) >> lengthShift) } +func (t token) length() uint32 { return uint32((t - matchType) >> lengthShift) } -func lengthCode(len uint32) uint32 { return lengthCodes[len] } +func lengthCode(len uint32) uint32 { return lengthCodes[len] } // Returns the offset code corresponding to a specific offset func offsetCode(off uint32) uint32 { - const n = uint32(len(offsetCodes)); + const n = uint32(len(offsetCodes)) switch { case off < n: return offsetCodes[off] @@ -99,5 +99,5 @@ func offsetCode(off uint32) uint32 { default: return offsetCodes[off>>14] + 28 } - panic("unreachable"); + panic("unreachable") } |