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6 Commits

Author SHA1 Message Date
Tomáš Procházka
cb32006e48
refactor (*UUID).UnmarshalText (#58) 
Now it's easier to set breakpoint on error for debugging.
 2020-05-19 09:17:26 -05:00
Paul Borman
d460ce9f8d Remove leftover comment. 
Fix reamde to no longer say this is experimental.
The API is not going to change.
 2018-08-27 15:42:32 -05:00
pborman
ca12c440f3 Merge pull request #5 from bmatsuo/bmatsuo/no-unsafe-parsing 
optimize internal parsing function -- avoid unsafe []byte parsing
 2016-02-29 06:12:54 -08:00
Bryan Matsuo
edbe6ec0cc make receiver names for marshal.go methods consistent with other UUID methods 2016-02-28 01:03:09 -08:00
Bryan Matsuo
7508f98c71 optimize internal parsing function -- avoid unsafe []byte parsing 
Making xtob take two byte arguments avoids a lot of slicing.  This makes
the Parse function faster.  In addition, because so much slicing is
avoiding, duplicating the parse logic to ParseBytes resulted in the
function being faster than Parse (<1ns).

The BenchmarkParseBytesNative function has been removed (parseBytes was
identical to ParseBytes).  And a new benchmark,
BenchmarkParseBytesUnsafe, has been added to benchmark the old way of
parsing []byte (which is slightly slower than Parse and thus the new
ParseBytes implementation).

    benchmark                         old ns/op     new ns/op     delta
    BenchmarkUUID_MarshalJSON-4       685           667           -2.63%
    BenchmarkUUID_UnmarshalJSON-4     1145          1162          +1.48%
    BenchmarkParse-4                  61.6          56.5          -8.28%
    BenchmarkParseBytes-4             65.7          55.9          -14.92%
    BenchmarkParseBytesCopy-4         121           115           -4.96%
    BenchmarkNew-4                    1665          1643          -1.32%
    BenchmarkUUID_String-4            112           113           +0.89%
    BenchmarkUUID_URN-4               117           119           +1.71%

    benchmark                         old allocs     new allocs     delta
    BenchmarkUUID_MarshalJSON-4       4              4              +0.00%
    BenchmarkUUID_UnmarshalJSON-4     2              2              +0.00%
    BenchmarkParse-4                  0              0              +0.00%
    BenchmarkParseBytes-4             0              0              +0.00%
    BenchmarkParseBytesCopy-4         1              1              +0.00%
    BenchmarkNew-4                    1              1              +0.00%
    BenchmarkUUID_String-4            1              1              +0.00%
    BenchmarkUUID_URN-4               1              1              +0.00%

    benchmark                         old bytes     new bytes     delta
    BenchmarkUUID_MarshalJSON-4       248           248           +0.00%
    BenchmarkUUID_UnmarshalJSON-4     248           248           +0.00%
    BenchmarkParse-4                  0             0             +0.00%
    BenchmarkParseBytes-4             0             0             +0.00%
    BenchmarkParseBytesCopy-4         48            48            +0.00%
    BenchmarkNew-4                    16            16            +0.00%
    BenchmarkUUID_String-4            48            48            +0.00%
    BenchmarkUUID_URN-4               48            48            +0.00%
 2016-02-25 21:48:37 -08:00
Paul Borman
9e951e1b07 Change a UUID from []byte to [16]byte along with other API changes. 2016-02-19 12:30:25 -08:00