Commit Graph

479 Commits

Author SHA1 Message Date
Alex Gaynor d75ee813b5 encoding/csv: optimize Write by giving fieldNeedsQuotes a fast path for when Comma is ascii
name     old time/op  new time/op  delta
Write-4  2.37µs ±20%  1.90µs ±19%  -19.54%  (p=0.015 n=6+6)

Change-Id: Iadfd9a43c958704c49ceb540b44d145220f9a72f
GitHub-Last-Rev: e7d8b0bd69
GitHub-Pull-Request: golang/go#34507
Reviewed-on: https://go-review.googlesource.com/c/go/+/197078
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-05-05 23:57:19 +00:00
Kirill Korotaev 9a93baf4d7 encoding/base64: improve performance up to 20% total
Improve base64 encoding/decoding performance by
suppressing compiler boundary checks on decode.

name                 old speed      new speed      delta
EncodeToString-8      570MB/s ± 1%   573MB/s ± 1%     ~     (p=0.421 n=5+5)
DecodeString/2-8     88.6MB/s ± 3%  91.6MB/s ± 2%   +3.37%  (p=0.016 n=5+5)
DecodeString/4-8      162MB/s ± 1%   168MB/s ± 0%   +4.12%  (p=0.008 n=5+5)
DecodeString/8-8      203MB/s ± 0%   214MB/s ± 0%   +5.18%  (p=0.008 n=5+5)
DecodeString/64-8     471MB/s ± 1%   520MB/s ± 1%  +10.50%  (p=0.008 n=5+5)
DecodeString/8192-8   757MB/s ± 0%   895MB/s ± 1%  +18.29%  (p=0.008 n=5+5)

Change-Id: I135243c11aa4c974a4a4e95c5c2abb0635d52c8c
GitHub-Last-Rev: 2c87abcb28
GitHub-Pull-Request: golang/go#36910
Reviewed-on: https://go-review.googlesource.com/c/go/+/217117
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-22 21:36:41 +00:00
Tamás Gulácsi 346d7d273c encoding/xml: fix reserved namespace check to be case-insensitive
Fixes the check for the reserved namespace prefix
"xml" to be case insensitive, so as to match all variants of:

    (('X'|'x')('M'|'m')('L'|'l'))

as mandated by Section 2.3 of https://www.w3.org/TR/REC-xml/

Fixes #35151.

Change-Id: Id5a98e5f9d69d3741dc16f567c4320f1ad0b3c70
Reviewed-on: https://go-review.googlesource.com/c/go/+/203417
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-09 02:03:40 +00:00
Tim Cooper 96acb74655 encoding/hex: remove unused variable from BenchmarkDump
Change-Id: I1fd47e5eab27346cec488098d4f6102a0749bd28
Reviewed-on: https://go-review.googlesource.com/c/go/+/221788
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-03-03 14:53:52 +00:00
Ziheng Liu 42f8199290 all: fix incorrect channel and API usage in some unit tests
This CL changes some unit test functions, making sure that these tests (and goroutines spawned during test) won't block.
Since they are just test functions, I use one CL to fix them all. I hope this won't cause trouble to reviewers and can save time for us.
There are three main categories of incorrect logic fixed by this CL:
1. Use testing.Fatal()/Fatalf() in spawned goroutines, which is forbidden by Go's document.
2. Channels are used in such a way that, when errors or timeout happen, the test will be blocked and never return.
3. Channels are used in such a way that, when errors or timeout happen, the test can return but some spawned goroutines will be leaked, occupying resource until all other tests return and the process is killed.

Change-Id: I3df931ec380794a0cf1404e632c1dd57c65d63e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/219380
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-02-27 19:04:17 +00:00
codesoap a1103dcc27 encoding/json: consolidate the isSpace function
The new code is easier to read, and practically equivalent in terms of
performance.

	name                  old time/op    new time/op    delta
	CodeUnmarshal-2          166ms ± 1%     166ms ± 1%    ~     (p=0.863 n=11+10)
	CodeUnmarshalReuse-2     139ms ± 1%     139ms ± 1%    ~     (p=0.050 n=10+12)
	UnmarshalString-2       1.08µs ± 1%    1.07µs ± 1%  -0.64%  (p=0.001 n=10+11)
	UnmarshalFloat64-2      1.01µs ± 1%    1.01µs ± 1%    ~     (p=0.280 n=12+11)
	UnmarshalInt64-2         850ns ± 0%     851ns ± 0%    ~     (p=0.455 n=11+12)

	name                  old speed      new speed      delta
	CodeUnmarshal-2       11.7MB/s ± 1%  11.7MB/s ± 1%    ~     (p=0.904 n=11+10)
	CodeUnmarshalReuse-2  14.0MB/s ± 1%  14.0MB/s ± 1%  +0.40%  (p=0.041 n=10+12)

	name                  old alloc/op   new alloc/op   delta
	CodeUnmarshal-2         3.28MB ± 0%    3.28MB ± 0%    ~     (p=0.907 n=10+11)
	CodeUnmarshalReuse-2    2.19MB ± 0%    2.19MB ± 0%    ~     (p=0.306 n=12+12)
	UnmarshalString-2         192B ± 0%      192B ± 0%    ~     (all equal)
	UnmarshalFloat64-2        180B ± 0%      180B ± 0%    ~     (all equal)
	UnmarshalInt64-2          176B ± 0%      176B ± 0%    ~     (all equal)

	name                  old allocs/op  new allocs/op  delta
	CodeUnmarshal-2          92.7k ± 0%     92.7k ± 0%    ~     (all equal)
	CodeUnmarshalReuse-2     80.4k ± 0%     80.4k ± 0%    ~     (all equal)
	UnmarshalString-2         2.00 ± 0%      2.00 ± 0%    ~     (all equal)
	UnmarshalFloat64-2        2.00 ± 0%      2.00 ± 0%    ~     (all equal)
	UnmarshalInt64-2          1.00 ± 0%      1.00 ± 0%    ~     (all equal)

Change-Id: I6d5a48c624d436551409a17c21542e26d29e26b3
GitHub-Last-Rev: 7d81961688
GitHub-Pull-Request: golang/go#37385
Reviewed-on: https://go-review.googlesource.com/c/go/+/220581
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Joe Tsai <joetsai@google.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-26 17:58:41 +00:00
Ian Lance Taylor 6052838bc3 all: avoid string(i) where i has type int
Instead use string(r) where r has type rune.

This is in preparation for a vet warning for string(i).

Updates #32479

Change-Id: Ic205269bba1bd41723950219ecfb67ce17a7aa79
Reviewed-on: https://go-review.googlesource.com/c/go/+/220844
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Akhil Indurti <aindurti@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Toshihiro Shiino <shiino.toshihiro@gmail.com>
2020-02-26 04:38:19 +00:00
Jordan Liggitt 84afaa9e94 encoding/json: limit max nesting depth
Limit the maximum nesting depth when parsing to protect against stack
overflow, permitted by https://tools.ietf.org/html/rfc7159#section-9

A nesting depth limit of 10,000 was chosen to be a conservative
balance between avoiding stack overflow and avoiding impacting
legitimate JSON documents.

10,000 is less than 1% of the experimental stack depth limit
with the default stack size:
* On 64-bit systems, the default stack limit is 1GB,
  which allows ~2,800,000 frames of recursive parsing
* On 32-bit systems, the default stack limit is 250MB,
  which allows ~1,100,000 frames of recursive parsing

Fixes #31789

Change-Id: I4f5a90e89dcb4ab1a957ad9d02e1fa0efafaccf6
Reviewed-on: https://go-review.googlesource.com/c/go/+/199837
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2020-02-24 14:35:19 +00:00
Jon Johnson e9956791bf encoding/json: fix broken link to json.org
This updates the link to a newer image.

Change-Id: Ibdfe8c57d9217a325bcfde98cb6f952ca63d588a
GitHub-Last-Rev: f5970ba395
GitHub-Pull-Request: golang/go#36938
Reviewed-on: https://go-review.googlesource.com/c/go/+/217297
Reviewed-by: Toshihiro Shiino <shiino.toshihiro@gmail.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2020-02-22 17:39:09 +00:00
Daniel Martí 41348081fa all: fix a number of misuses of the word "an"
After golang.org/cl/210124, I wondered if the same error had gone
unnoticed elsewhere. I quickly spotted another dozen mistakes after
reading through the output of:

	git grep '\<[Aa]n [bcdfgjklmnpqrtvwyz][a-z]'

Many results are false positives for acronyms like "an mtime", since
it's pronounced "an em-time". However, the total amount of output isn't
that large given how simple the grep pattern is.

Change-Id: Iaa2ca69e42f4587a9e3137d6c5ed758887906ca6
Reviewed-on: https://go-review.googlesource.com/c/go/+/210678
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Zach Jones <zachj1@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-12-10 16:23:10 +00:00
Filippo Valsorda fbcfa6a532 encoding/base64: document that Strict mode still ignores newlines
An application that wants to reject non-canonical encodings is likely to
care about other sources of malleability.

Change-Id: I1d3a5b281d2631ca78df3f89b957a02687a534d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/188858
Reviewed-by: Katie Hockman <katie@golang.org>
2019-11-20 19:43:21 +00:00
Daniel Martí 64c9ee98b7 encoding/json: error when encoding a pointer cycle
Otherwise we'd panic with a stack overflow.

Most programs are in control of the data being encoded and can ensure
there are no cycles, but sometimes it's not that simple. For example,
running a user's html template with script tags can easily result in
crashes if the user can find a pointer cycle.

Adding the checks via a map to every ptrEncoder.encode call slowed down
the benchmarks below by a noticeable 13%. Instead, only start doing the
relatively expensive pointer cycle checks if we're many levels of
pointers deep in an encode state.

A threshold of 1000 is small enough to capture pointer cycles before
they're a problem (the goroutine stack limit is currently 1GB, and I
needed close to a million levels to reach it). Yet it's large enough
that reasonable uses of the json encoder only see a tiny 1% slow-down
due to the added ptrLevel field and check.

	name           old time/op    new time/op    delta
	CodeEncoder-8    2.34ms ± 1%    2.37ms ± 0%  +1.05%  (p=0.000 n=10+10)
	CodeMarshal-8    2.42ms ± 1%    2.44ms ± 0%  +1.10%  (p=0.000 n=10+10)

	name           old speed      new speed      delta
	CodeEncoder-8   829MB/s ± 1%   820MB/s ± 0%  -1.04%  (p=0.000 n=10+10)
	CodeMarshal-8   803MB/s ± 1%   795MB/s ± 0%  -1.09%  (p=0.000 n=10+10)

	name           old alloc/op   new alloc/op   delta
	CodeEncoder-8    43.1kB ± 8%    42.5kB ±10%    ~     (p=0.989 n=10+10)
	CodeMarshal-8    1.99MB ± 0%    1.99MB ± 0%    ~     (p=0.254 n=9+6)

	name           old allocs/op  new allocs/op  delta
	CodeEncoder-8      0.00           0.00         ~     (all equal)
	CodeMarshal-8      1.00 ± 0%      1.00 ± 0%    ~     (all equal)

Finally, add a few tests to ensure that the code handles the edge cases
properly.

Fixes #10769.

Change-Id: I73d48e0cf6ea140127ea031f2dbae6e6a55e58b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/187920
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2019-11-11 16:24:21 +00:00
Than McIntosh b2b0992b05 Revert "encoding/asn1: fix unmarshalling SEQUENCE OF SET"
This reverts CL 160819 (commit 4692343cf4)

Reason for revert: causing lots of failures on master

Change-Id: I96fd39ae80fe350ba8b3aa310443d41daec38093
Reviewed-on: https://go-review.googlesource.com/c/go/+/206146
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-11-08 18:55:44 +00:00
Martin Garton 7714dcacbc encoding/binary: add float support to fast path
This adds float type support to the main switch blocks in Read and
Write, instead of falling back to reflection. This gives a considerable
speedup for the float types:

ReadFloats-8                 129ns ± 9%       70ns ± 8%   -46.02%  (p=0.001 n=7+7)
WriteFloats-8                131ns ± 6%       86ns ±11%   -34.59%  (p=0.001 n=7+7)
ReadSlice1000Float32s-8     14.6µs ±14%      4.8µs ±12%   -67.29%  (p=0.001 n=7+7)
WriteSlice1000Float32s-8    16.4µs ±20%      4.7µs ± 8%   -71.01%  (p=0.001 n=7+7)

Change-Id: I0be99d068b07d10dd6eb1137b45eff6f7c216b87
GitHub-Last-Rev: 4ff326e99c
GitHub-Pull-Request: golang/go#31803
Reviewed-on: https://go-review.googlesource.com/c/go/+/174959
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-11-08 18:35:59 +00:00
kaxapi 4692343cf4 encoding/asn1: fix unmarshalling SEQUENCE OF SET
Fixes #27426

Change-Id: I34d4784658ce7b9e6130bae9717e80d0e9a290a2
GitHub-Last-Rev: 6de610cdce
GitHub-Pull-Request: golang/go#30059
Reviewed-on: https://go-review.googlesource.com/c/go/+/160819
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Agniva De Sarker <agniva.quicksilver@gmail.com>
2019-11-08 18:28:44 +00:00
Udalov Max c444ec3085 encoding/binary: make Read return an error when data is not a pointer
Make binary.Read return an error when passed `data` argument is not
a pointer to a fixed-size value or a slice of fixed-size values.

Fixes #32927

Change-Id: I04f48be55fe9b0cc66c983d152407d0e42cbcd95
Reviewed-on: https://go-review.googlesource.com/c/go/+/184957
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-11-08 18:00:31 +00:00
Lorenz Bauer c9d89f6bac encoding/binary: cache struct sizes to speed up Read and Write
A majority of work is spent in dataSize when en/decoding the same
struct over and over again. This wastes a lot of work, since
the result doesn't change for a given reflect.Value.

Cache the result of the function for structs, so that subsequent
calls to dataSize can avoid doing work.

    name         old time/op    new time/op     delta
    ReadStruct     1.00µs ± 1%     0.37µs ± 1%   -62.99%  (p=0.029 n=4+4)
    WriteStruct    1.00µs ± 3%     0.37µs ± 1%   -62.69%  (p=0.008 n=5+5)

    name         old speed      new speed       delta
    ReadStruct   75.1MB/s ± 1%  202.9MB/s ± 1%  +170.16%  (p=0.029 n=4+4)
    WriteStruct  74.8MB/s ± 3%  200.4MB/s ± 1%  +167.96%  (p=0.008 n=5+5)

Fixes #34471

Change-Id: Ic5d987ca95f1197415ef93643a0af6fc1224fdf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/199539
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-01 20:16:01 +00:00
Daniel Martí 54697702e4 encoding/json: avoid work when unquoting strings, take 2
This is a re-submission of CL 151157, since it was reverted in CL 190909
due to an introduced crash found by a fuzzer. The revert CL included
regression tests, while this CL includes a fixed version of the original
change.

In particular, what we forgot in the original optimization was that we
still need the length and trailing quote checks at the beginning of
unquoteBytes. Without those, we could end up in a crash later on.

We can work out how many bytes can be unquoted trivially in
rescanLiteral, which already iterates over a string's bytes.

Removing the extra loop in unquoteBytes simplifies the function and
speeds it up, especially when decoding simple strings, which are common.

While at it, we can remove the check that s[0]=='"', since all call
sites already meet that condition.

name           old time/op    new time/op    delta
CodeDecoder-8    10.6ms ± 2%    10.5ms ± 1%  -1.01%  (p=0.004 n=20+10)

name           old speed      new speed      delta
CodeDecoder-8   183MB/s ± 2%   185MB/s ± 1%  +1.02%  (p=0.003 n=20+10)

Updates #28923.

Change-Id: I8c6b13302bcd86a364bc998d72451332c0809cde
Reviewed-on: https://go-review.googlesource.com/c/go/+/190659
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Peter Weinberger <pjw@google.com>
2019-10-31 12:02:57 +00:00
Sam Whited a05934639b encoding/xml: fix token decoder on early EOF
The documentation for TokenReader suggests that implementations of the
interface may return a token and io.EOF together, indicating that it is
the last token in the stream. This is similar to io.Reader. However, if
you wrap such a TokenReader in a Decoder it complained about the EOF.
A test was added to ensure this behavior on Decoder's.

Change-Id: I9083c91d9626180d3bcf5c069a017050f3c7c4a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/130556
Run-TryBot: Sam Whited <sam@samwhited.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-10-30 19:47:52 +00:00
Phil Pearl acbed0372e encoding/json: remove allocation when using a Marshaler with value receiver
If we marshal a non-pointer struct field whose type implements Marshaler with
a non-pointer receiver, then we avoid an allocation if we take the address of
the field before casting it to an interface.

name               old time/op    new time/op    delta
EncodeMarshaler-8     104ns ± 1%      92ns ± 2%  -11.72%  (p=0.001 n=7+7)

name               old alloc/op   new alloc/op   delta
EncodeMarshaler-8     36.0B ± 0%      4.0B ± 0%  -88.89%  (p=0.000 n=8+8)

name               old allocs/op  new allocs/op  delta
EncodeMarshaler-8      2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=8+8)

Test coverage already looks good enough for this change. TestRefValMarshal
already covers all possible combinations of value & pointer receivers on
value and pointer struct fields.

Change-Id: I6fc7f72396396d98f9a90c3c86e813690f41c099
Reviewed-on: https://go-review.googlesource.com/c/go/+/203608
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-28 11:22:20 +00:00
Phil Pearl 22d377077c encoding/json: improve performance of Compact
This change improves performance of Compact by using a sync.Pool to allow re-use
of a scanner. This also has the side-effect of removing an allocation for each
field that implements Marshaler when marshalling JSON.

name               old time/op    new time/op    delta
EncodeMarshaler-8     118ns ± 2%     104ns ± 1%  -12.21%  (p=0.001 n=7+7)

name               old alloc/op   new alloc/op   delta
EncodeMarshaler-8      100B ± 0%       36B ± 0%  -64.00%  (p=0.000 n=8+8)

name               old allocs/op  new allocs/op  delta
EncodeMarshaler-8      3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.000 n=8+8)

Change-Id: Ic70c61a0a6354823da5220f5aad04b94c054f233
Reviewed-on: https://go-review.googlesource.com/c/go/+/200864
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-27 16:02:29 +00:00
Eugene Kalinin 02196d3657 encoding/json: correct caller's name in encoding errors
1. Change mapencode.encode to use fmt.Error rather than MarshalerError.
MarshalerError refer to MarshalJSON, but mapencode.encode does not use that.

2. Add sourceFunc field to MarshalerError to record the name of the function
that creates the error, so that the Error method can report it correctly.

Fixes #29753

Change-Id: I186c2fac8470ae2f9e300501de3730face642230
Reviewed-on: https://go-review.googlesource.com/c/go/+/184119
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-10-16 22:58:08 +00:00
Francesco Renzi ba108c93b8 encoding/json: add Decoder.InputOffset for offset access
This makes Decoder.offset public while renaming it to
Decoder.InputOffset to match encoding/xml Decoder API

Code changes made by Adam Stankiewicz [sheerun@sher.pl]

Fixes #29688

Change-Id: I86dbfd2b2da80160846e92bfa580c53d8d45e2db
Reviewed-on: https://go-review.googlesource.com/c/go/+/200677
Run-TryBot: Johan Brandhorst <johan.brandhorst@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-10-11 16:34:01 +00:00
Cuong Manh Le fb9af8411e encoding/json: support TextUnmarshaler for map keys with string underlying types
When unmarshaling to a map, the map's key type must either be a string,
an integer, or implement encoding.TextUnmarshaler. But for a user
defined type, reflect.Kind will not distinguish between the static type
and the underlying type. In:

	var x MyString = "x"
	t := reflect.TypeOf(x)
	println(t.Kind() == reflect.String)

the Kind of x is still reflect.String, even though the static type of x
is MyString.

Moreover, checking for the map's key type is a string occurs first, so
even if the map key type MyString implements encoding.TextUnmarshaler,
it will be ignored.

To fix the bug, check for encoding.TextUnmarshaler first.

Fixes #34437

Change-Id: I780e0b084575e1dddfbb433fe03857adf71d05fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/200237
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2019-10-10 12:59:11 +00:00
Tom Thorogood 900ebcfe4d encoding/json: stop escaping U+2028 and U+2029 in Compact
Compact has been inconsistently escaping only some problematic characters
(U+2028 and U+2029), but not others (<, > and &). This change addresses
this inconsistency by removing the escaping of U+2028 and U+2029.

Callers who need to escape the output of Compact should use HTMLEscape
which escapes <, >, &, U+2028 and U+2029.

Fixes #34070
Fixes #30357
Updates #5836

Change-Id: Icfce7691d2b8b1d9b05ba7b64d2d1e4f3b67871b
GitHub-Last-Rev: 38859fe3e2
GitHub-Pull-Request: golang/go#34804
Reviewed-on: https://go-review.googlesource.com/c/go/+/200217
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-10-10 11:31:54 +00:00
Lucas Bremgartner c1000c500c encoding/json: validate strings when decoding into Number
Unmarshaling a string into a json.Number should first check that the string is a valid Number.
If not, we should fail without decoding it.

Fixes #14702

Change-Id: I286178e93df74ad63c0a852c3f3489577072cf47
GitHub-Last-Rev: fe69bb68ee
GitHub-Pull-Request: golang/go#34272
Reviewed-on: https://go-review.googlesource.com/c/go/+/195045
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-09-16 21:56:53 +00:00
Lucas Bremgartner 49e7c7672d encoding/json: make Number with the ,string option marshal with quotes
Add quotes when marshaling a json.Number with the string option
set via a struct tag. This ensures that the resulting json
can be unmarshaled into the source struct without error.

Fixes #34268

Change-Id: Ide167d9dec77019554870b5957b37dc258119d81
GitHub-Last-Rev: dde81b7120
GitHub-Pull-Request: golang/go#34269
Reviewed-on: https://go-review.googlesource.com/c/go/+/195043
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-09-16 11:56:15 +00:00
William Poussier cc39d8087b encoding/json: encode nil encoding.TextMarshaler instance as "null"
Fixes #34235.

Change-Id: Ia3795fd18860530fa6a4b171545f525e784ffdcb
GitHub-Last-Rev: 1a319c4528
GitHub-Pull-Request: golang/go#34238
Reviewed-on: https://go-review.googlesource.com/c/go/+/194642
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-09-11 18:37:43 +00:00
Lucas Bremgartner 0e015e20cf encoding/json: fix and optimize marshal for quoted string
Since Go 1.2 every string can be marshaled to JSON without error even if it
contains invalid UTF-8 byte sequences. Therefore there is no need to use
Marshal again for the only reason of enclosing the string in double quotes.
Not using Marshal here also removes the error check as there has not been a
way for Marshal to fail anyway.

name          old time/op    new time/op    delta
Issue34127-4     360ns ± 3%     200ns ± 3%  -44.56%  (p=0.008 n=5+5)

name          old alloc/op   new alloc/op   delta
Issue34127-4     56.0B ± 0%     40.0B ± 0%  -28.57%  (p=0.008 n=5+5)

name          old allocs/op  new allocs/op  delta
Issue34127-4      3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.008 n=5+5)

Fixes #34154

Change-Id: Ib60dc11980f9b20d8bef2982de7168943d632263
GitHub-Last-Rev: 9b0ac1d4c5
GitHub-Pull-Request: golang/go#34127
Reviewed-on: https://go-review.googlesource.com/c/go/+/193604
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-09-11 12:26:35 +00:00
Sven Taute 8ef6d6a8f2 encoding/base32: increase performance and code reuse
Add benchmarks for the Encode/Decode functions operating on []byte and increase decoding performance by removing the calls to strings.Map/bytes.Map and reusing the newline filtering code that is used by NewDecoder.
Cut allocations in half for DecodeString.

Comparison using the new benchmarks:
name            old time/op    new time/op     delta
Encode            16.7µs ± 1%     17.0µs ± 2%    +2.25%  (p=0.000 n=9+9)
EncodeToString    21.1µs ± 1%     20.9µs ± 1%    -0.96%  (p=0.000 n=10+10)
Decode             141µs ± 1%       54µs ± 1%   -61.51%  (p=0.000 n=10+10)
DecodeString      81.4µs ± 0%     54.7µs ± 1%   -32.79%  (p=0.000 n=9+10)

name            old speed      new speed       delta
Encode           492MB/s ± 1%    481MB/s ± 2%    -2.19%  (p=0.000 n=9+9)
EncodeToString   389MB/s ± 1%    392MB/s ± 1%    +0.97%  (p=0.000 n=10+10)
Decode          93.0MB/s ± 1%  241.6MB/s ± 1%  +159.82%  (p=0.000 n=10+10)
DecodeString     161MB/s ± 0%    240MB/s ± 1%   +48.78%  (p=0.000 n=9+10)

Change-Id: Id53633514a9e14ecd0389d52114b2b8ca64370cb
GitHub-Last-Rev: f4be3cf55c
GitHub-Pull-Request: golang/go#30376
Reviewed-on: https://go-review.googlesource.com/c/go/+/163598
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-09-11 00:56:39 +00:00
andig cf630586ca encoding/json: don't reset before returning buffer to pool
Reset is already performed when retrieving from pool

Change-Id: Ia810dd18d3e55a1565a5ad435a00d1e46724576c
GitHub-Last-Rev: d9df74a4ae
GitHub-Pull-Request: golang/go#34195
Reviewed-on: https://go-review.googlesource.com/c/go/+/194338
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2019-09-10 14:58:40 +00:00
Romain Baugue b6ec56bc26 encoding/json: don't indirect pointers when decoding null
The indirect method checked the type of the child when indirecting a
pointer. If the current value is a pointer and we are decoding null, we
can skip this entirely and return early, avoiding the whole descent.

Fixes #31776

Change-Id: Ib8b2a2357572c41f56fceac59b5a858980f3f65e
Reviewed-on: https://go-review.googlesource.com/c/go/+/174699
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2019-09-10 08:24:29 +00:00
sergeilem a3a1bdff79 encoding/asn1: handle ASN1's string type BMPString
This code enables handling of ASN1's string type BMPString, used in some digital signatures.
Parsing code taken from golang.org/x/crypto/pkcs12.

Change-Id: Ibeae9cf4d8ae7c18f8b5420ad9244a16e117ff6b
GitHub-Last-Rev: 6945253514
GitHub-Pull-Request: golang/go#26690
Reviewed-on: https://go-review.googlesource.com/c/go/+/126624
Run-TryBot: Andrew Bonventre <andybons@golang.org>
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Reviewed-by: Andrew Bonventre <andybons@golang.org>
2019-09-09 23:04:30 +00:00
Ainar Garipov 51c8d969bd src: gofmt -s
Change-Id: I56d7eeaf777ac30886ee77428ca1ac72b77fbf7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/193849
Run-TryBot: Dave Cheney <dave@cheney.net>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-09-09 18:57:05 +00:00
Eli Bendersky 28f8f55bd2 encoding/json: clarify Unmarshal behavior for map keys
This is a documentation-only change

Fixes #33298

Change-Id: I816058a872b57dc868dff11887214d9de92d9342
Reviewed-on: https://go-review.googlesource.com/c/go/+/188821
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-09-09 17:28:54 +00:00
Ainar Garipov 0efbd10157 all: fix typos
Use the following (suboptimal) script to obtain a list of possible
typos:

  #!/usr/bin/env sh

  set -x

  git ls-files |\
    grep -e '\.\(c\|cc\|go\)$' |\
    xargs -n 1\
    awk\
    '/\/\// { gsub(/.*\/\//, ""); print; } /\/\*/, /\*\// { gsub(/.*\/\*/, ""); gsub(/\*\/.*/, ""); }' |\
    hunspell -d en_US -l |\
    grep '^[[:upper:]]\{0,1\}[[:lower:]]\{1,\}$' |\
    grep -v -e '^.\{1,4\}$' -e '^.\{16,\}$' |\
    sort -f |\
    uniq -c |\
    awk '$1 == 1 { print $2; }'

Then, go through the results manually and fix the most obvious typos in
the non-vendored code.

Change-Id: I3cb5830a176850e1a0584b8a40b47bde7b260eae
Reviewed-on: https://go-review.googlesource.com/c/go/+/193848
Reviewed-by: Robert Griesemer <gri@golang.org>
2019-09-08 17:28:20 +00:00
Daniel Martí 03ac39ce5e std: remove unused bits of code all over the place
Some were never used, and some haven't been used for years.

One exception is net/http's readerAndCloser, which was only used in a
test. Move it to a test file.

While at it, remove a check in regexp that could never fire; the field
is an uint32, so it can never be negative.

Change-Id: Ia2200f6afa106bae4034045ea8233b452f38747b
Reviewed-on: https://go-review.googlesource.com/c/go/+/192621
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-09-02 12:57:37 +00:00
itchyny 7450960a13 encoding/json: fix scanner byte offset on scanEnd
scanEnd is delayed one byte so we decrement
the scanner bytes count by 1 to ensure that
this value is correct in the next call of Decode.

Fixes #32399

Change-Id: I8c8698e7f95bbcf0373aceaa05319819eae9d86f
GitHub-Last-Rev: 0ac25d8de2
GitHub-Pull-Request: golang/go#32598
Reviewed-on: https://go-review.googlesource.com/c/go/+/182117
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-09-02 11:00:29 +00:00
Tom Thorogood 79669dc705 encoding/json: revert Compact HTML escaping documentation
This partly reverts CL 173417 as it incorrectly documented that Compact
performed HTML escaping and the output was safe to embed inside HTML
<script> tags. This has never been true.

Although Compact does escape U+2028 and U+2029, it doesn't escape <, >
or &. Compact is thus only performing a subset of HTML escaping and it's
output is not safe to embed inside HTML <script> tags.

A more complete fix would be for Compact to either never perform any
HTML escaping, as it was prior to CL 10883045, or to actually perform
the same HTML escaping as HTMLEscape. Neither change is likely safe
enough for go1.13.

Updates #30357

Change-Id: I912f0fe9611097d988048b28228c4a5b985080ba
GitHub-Last-Rev: aebababc92
GitHub-Pull-Request: golang/go#33427
Reviewed-on: https://go-review.googlesource.com/c/go/+/188717
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-09-01 16:43:30 +00:00
William Poussier 85f3ca7488 encoding/json: fix panic for nil instances of TextMarshaler in map keys
This change adds a a check in the encodeWithString.resolve method
to ensure that a reflect.Value with kind Ptr is not nil before
the type assertion to TextMarshaler.

If the value is nil, the method returns a nil error, and the map key
encodes to an empty string.

Fixes #33675

Change-Id: I0a04cf690ae67006f6a9c5f8cbb4cc99d236bca8
GitHub-Last-Rev: 6c987c9084
GitHub-Pull-Request: golang/go#33700
Reviewed-on: https://go-review.googlesource.com/c/go/+/190697
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2019-09-01 16:39:38 +00:00
Eddie Scholtz 37373592af encoding/xml: rename fInnerXml to fInnerXML
Per the code review guidelines: "Words in names that are
initialisms or acronyms have a consistent case."

Change-Id: I347b02d2f48455f2cbbc040191ba197e3e8f23fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/191970
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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2019-08-28 10:21:40 +00:00
Daniel Martí ae68a91272 encoding/json: remove unnecessary isValidNumber call
The decoder called this function to check numbers being decoded into a
json.Number. However, these can't be quoted as strings, so the tokenizer
has already verified they are valid JSON numbers.

Verified this by adding a test with such an input. As expected, it
produces a syntax error, not the fmt.Errorf - that line could never
execute.

Since the only remaining non-test caller of isvalidnumber is in
encode.go, move the function there.

This change should slightly reduce the amount of work when decoding into
json.Number, though that isn't very common nor part of any current
benchmarks.

Change-Id: I67a1723deb3d18d5b542d6dd35f3ae56a43f23eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/184817
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-08-27 17:53:55 +00:00
Daniel Martí 95c3c43072 encoding/json: fix the broken "overwriting of data" tests
Because TestUnmarshal actually allocates a new value to decode into
using ptr's pointer type, any existing data is thrown away. This was
harmless in alomst all of the test cases, minus the "overwriting of
data" ones added in 2015 in CL 12209.

I spotted that nothing covered decoding a JSON array with few elements
into a slice which already had many elements. I initially assumed that
the code was buggy or that some code could be removed, when in fact
there simply wasn't any code covering the edge case.

Move those two tests to TestPrefilled, which already served a very
similar purpose. Remove the map case, as TestPrefilled already has
plenty of prefilled map cases. Moreover, we no longer reset an entire
map when decoding, as per the godoc:

	To unmarshal a JSON object into a map, Unmarshal first
	establishes a map to use. If the map is nil, Unmarshal allocates
	a new map. Otherwise Unmarshal reuses the existing map, keeping
	existing entries.

Finally, to ensure that ptr is used correctly in the future, make
TestUnmarshal error if it's anything other than a pointer to a zero
value. That is, the only correct use should be new(type). Don't rename
the ptr field, as that would be extremely noisy and cause unwanted merge
conflicts.

Change-Id: I41e3ecfeae42d877ac5443a6bd622ac3d6c8120c
Reviewed-on: https://go-review.googlesource.com/c/go/+/185738
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-08-27 16:50:56 +00:00
Filippo Valsorda eee07a8e68 Revert "encoding/json: avoid work when unquoting strings"
This reverts CL 151157.

CL 151157 introduced a crash when decoding into ",string" fields. It
came with a moderate speedup, so at this stage of the release cycle
let's just revert it, and reapply it in Go 1.14 with the fix in CL 190659.

Also applied the test cases from CL 190659.

Updates #33728

Change-Id: Ie46e2bc15224b251888580daf6b79d5865f3878e
Reviewed-on: https://go-review.googlesource.com/c/go/+/190909
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2019-08-21 15:20:00 +00:00
Dmitry Vyukov 0dd120df7e encoding/json: fix format string in the Fuzz func
Currently test build fails with:

$ go test -tags=gofuzz encoding/json
encoding/json/fuzz.go:36:4: Println call has possible formatting directive %s
FAIL	encoding/json [build failed]

Change-Id: I23aef44a421ed0e7bcf48b74ac5a8c6768a4841b
Reviewed-on: https://go-review.googlesource.com/c/go/+/190698
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-08-18 01:16:33 +00:00
Eli Bendersky e81b731592 encoding/json: clarify Marshal behavior for string keys of maps
This is a documentation-only change.

Fixes #28827

Change-Id: Ife9ab997809048784f35872b09905bc209a05eff
Reviewed-on: https://go-review.googlesource.com/c/go/+/188417
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-07-31 21:49:08 +00:00
Dominik Honnef c4ca60313e all: change some function documentation to be more idiomatic
Change-Id: I932de9bb061a8ba3332ef03207983e8b98d6f1e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/187918
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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2019-07-28 18:09:57 +00:00
Daniel Martí 13327f219e encoding/json: obey SetEscapeHTML in all MarshalJSON cases
It wasn't obeyed in the case where the MarshalJSON method uses a pointer
receiver, and the encoder grabs the address of a value to find that
method. addrMarshalerEncoder is the function that does this work, but it
ignored opts.escapeHTML.

Here's the before and after of the added test case, which was failing
before the fix. Now the two cases are correct and consistent.

	{"NonPtr":"<str>","Ptr":"\u003cstr\u003e"}
	{"NonPtr":"<str>","Ptr":"<str>"}

Fixes #32896.

Change-Id: Idc53077ece074973558bd3bb5ad036380db0d02c
Reviewed-on: https://go-review.googlesource.com/c/go/+/184757
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Caleb Spare <cespare@gmail.com>
2019-07-06 13:25:59 +00:00
Leon Klingele d307bd4ede encoding/gob: properly ignore errors
Change-Id: I8827cef0f57459384329c50c51795350da0ede4b
GitHub-Last-Rev: c9ad9e12b5
GitHub-Pull-Request: golang/go#30010
Reviewed-on: https://go-review.googlesource.com/c/go/+/160434
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-05-22 20:42:35 +00:00
Russ Cox 06b0babf31 all: shorten some tests
Shorten some of the longest tests that run during all.bash.
Removes 7r 50u 21s from all.bash.

After this change, all.bash is under 5 minutes again on my laptop.

For #26473.

Change-Id: Ie0460aa935808d65460408feaed210fbaa1d5d79
Reviewed-on: https://go-review.googlesource.com/c/go/+/177559
Run-TryBot: Russ Cox <rsc@golang.org>
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2019-05-22 12:54:00 +00:00