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Doing this because the slices functions are slightly faster and
slightly easier to use. It also removes one dependency layer.
This CL does not change packages that are used during bootstrap,
as the bootstrap compiler does not have the required slices functions.
It does not change the go/scanner package because the ErrorList
Len, Swap, and Less methods are part of the Go 1 API.
Change-Id: If52899be791c829198e11d2408727720b91ebe8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587655
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sorting
This change refactors the SortedMap type in the fmtsort package from using
two parallel slices for keys and values to a single slice of structs. This
improves code clarity and reduces the complexity of handling map entries.
Affected files and their respective functions have been updated to work
with the new structure, including adjustments in fmt/print.go and
text/template/exec.go to iterate over the new map representation.
goos: darwin
goarch: arm64
pkg: fmt
cpu: Apple M2 Max
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
SprintfPadding-12 21.29n ± 5% 20.89n ± 8% ~ (p=0.393 n=10)
SprintfEmpty-12 2.986n ± 4% 2.997n ± 10% ~ (p=0.697 n=10)
SprintfString-12 8.327n ± 9% 8.493n ± 12% ~ (p=0.579 n=10)
SprintfTruncateString-12 15.93n ± 10% 15.56n ± 10% ~ (p=0.853 n=10)
SprintfTruncateBytes-12 14.56n ± 12% 14.13n ± 11% ~ (p=0.796 n=10)
SprintfSlowParsingPath-12 9.026n ± 15% 9.511n ± 14% ~ (p=0.646 n=10)
SprintfQuoteString-12 40.88n ± 3% 40.73n ± 1% ~ (p=0.782 n=10)
SprintfInt-12 6.279n ± 7% 6.130n ± 6% ~ (p=0.218 n=10)
SprintfIntInt-12 11.08n ± 10% 11.37n ± 10% ~ (p=0.424 n=10)
SprintfPrefixedInt-12 31.24n ± 3% 31.21n ± 2% ~ (p=0.912 n=10)
SprintfFloat-12 13.96n ± 7% 13.99n ± 15% ~ (p=0.986 n=10)
SprintfComplex-12 49.16n ± 7% 50.57n ± 6% ~ (p=0.436 n=10)
SprintfBoolean-12 7.578n ± 15% 7.267n ± 11% ~ (p=0.529 n=10)
SprintfHexString-12 36.14n ± 2% 35.74n ± 1% ~ (p=0.118 n=10)
SprintfHexBytes-12 48.74n ± 1% 48.34n ± 4% ~ (p=0.128 n=10)
SprintfBytes-12 60.16n ± 3% 61.36n ± 5% ~ (p=0.218 n=10)
SprintfStringer-12 39.02n ± 10% 39.31n ± 9% ~ (p=0.739 n=10)
SprintfStructure-12 161.2n ± 1% 133.9n ± 4% -16.90% (p=0.000 n=10)
ManyArgs-12 31.87n ± 17% 33.00n ± 12% ~ (p=0.165 n=10)
FprintInt-12 32.32n ± 0% 33.13n ± 1% +2.49% (p=0.000 n=10)
FprintfBytes-12 47.31n ± 0% 47.99n ± 1% +1.44% (p=0.000 n=10)
FprintIntNoAlloc-12 32.05n ± 1% 33.12n ± 0% +3.34% (p=0.000 n=10)
ScanInts-12 130.5µ ± 1% 131.3µ ± 0% +0.57% (p=0.000 n=10)
ScanRecursiveInt-12 40.83m ± 1% 40.65m ± 2% ~ (p=0.353 n=10)
ScanRecursiveIntReaderWrapper-12 40.77m ± 2% 40.83m ± 2% ~ (p=0.971 n=10)
geomean 100.6n 100.3n -0.32%
│ old.txt │ new.txt │
│ B/op │ B/op vs base │
SprintfPadding-12 16.00 ± 0% 16.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfEmpty-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfString-12 5.000 ± 0% 5.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfTruncateString-12 16.00 ± 0% 16.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfTruncateBytes-12 16.00 ± 0% 16.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfSlowParsingPath-12 5.000 ± 0% 5.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfQuoteString-12 32.00 ± 0% 32.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfInt-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfIntInt-12 3.000 ± 0% 3.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfPrefixedInt-12 64.00 ± 0% 64.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfFloat-12 8.000 ± 0% 8.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfComplex-12 24.00 ± 0% 24.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfBoolean-12 4.000 ± 0% 4.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfHexString-12 80.00 ± 0% 80.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfHexBytes-12 104.0 ± 0% 104.0 ± 0% ~ (p=1.000 n=10) ¹
SprintfBytes-12 88.00 ± 0% 88.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfStringer-12 32.00 ± 0% 32.00 ± 0% ~ (p=1.000 n=10) ¹
SprintfStructure-12 216.0 ± 0% 168.0 ± 0% -22.22% (p=0.000 n=10)
ManyArgs-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
FprintInt-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
FprintfBytes-12 24.00 ± 0% 24.00 ± 0% ~ (p=1.000 n=10) ¹
FprintIntNoAlloc-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
ScanInts-12 14.87Ki ± 0% 14.87Ki ± 0% ~ (p=1.000 n=10) ¹
ScanRecursiveInt-12 16.37Ki ± 0% 16.34Ki ± 9% ~ (p=0.950 n=10)
ScanRecursiveIntReaderWrapper-12 16.43Ki ± 8% 16.35Ki ± 0% ~ (p=0.052 n=10)
geomean ² -1.03% ²
¹ all samples are equal
² summaries must be >0 to compute geomean
│ old.txt │ new.txt │
│ allocs/op │ allocs/op vs base │
SprintfPadding-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfEmpty-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfString-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfTruncateString-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfTruncateBytes-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfSlowParsingPath-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfQuoteString-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfInt-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfIntInt-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfPrefixedInt-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfFloat-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfComplex-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfBoolean-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfHexString-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfHexBytes-12 2.000 ± 0% 2.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfBytes-12 2.000 ± 0% 2.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfStringer-12 4.000 ± 0% 4.000 ± 0% ~ (p=1.000 n=10) ¹
SprintfStructure-12 8.000 ± 0% 6.000 ± 0% -25.00% (p=0.000 n=10)
ManyArgs-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
FprintInt-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
FprintfBytes-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹
FprintIntNoAlloc-12 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=10) ¹
ScanInts-12 1.590k ± 0% 1.590k ± 0% ~ (p=1.000 n=10) ¹
ScanRecursiveInt-12 1.592k ± 0% 1.592k ± 0% ~ (p=0.303 n=10)
ScanRecursiveIntReaderWrapper-12 1.594k ± 0% 1.594k ± 0% ~ (p=0.582 n=10)
geomean ² -1.14% ²
¹ all samples are equal
² summaries must be >0 to compute geomean
Change-Id: I2e850d827d2fd7d6618db60f7071977af5639032
GitHub-Last-Rev: 5a4afcf045331c6864902e848ededc1562d5fa53
GitHub-Pull-Request: golang/go#67256
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Change-Id: Ia7eaa654b44625983d09284d906a7b67ef589696
Reviewed-on: https://go-review.googlesource.com/c/go/+/535082
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Existing implementation did not allow setting both padding and minus flags at the same time because standard formatting does not allow that. But custom Formatter interface implementations might have use of it. This change moves the check from the place flags are parsed to where they are used in standard formatting.
Fixes #61784
Change-Id: If5909d45dc929ddf911453e1056a4661abe76e52
GitHub-Last-Rev: d99ec55d3bbd9b2a8f14c8ade2fb25d6e0c174c3
GitHub-Pull-Request: golang/go#61836
Reviewed-on: https://go-review.googlesource.com/c/go/+/516975
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Probably a day 1 oversight, and almost always inconsequential, but
there is evidence of occasional trouble. There is no reason not to
clear them.
I tried and failed to write a test to catch this, but the change should
be harmless and is all but certain to fix the problem.
Fixes #61913
Change-Id: I0f7bbb4ab2780d8999d3ff7a35255dc07fb5c7e1
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The %#g format prints a "Go-syntax representation", but there is
no such thing for IEEE754 infinities and NaNs, so just document
what happens, which is that it prints +Inf, -Inf, or NaN. We could
show something like math.Inf(1) and math.Nan(), but that doesn't
sit right, and anyway for NaNs you can't even recover the original
value. Simpler and more honest to give up.
Fixes #51486
Change-Id: I8d4e8186f5d7acc3e0e7b51d0b322142908ea0a2
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%03s zero-pads a string with spaces; always has and now always will.
Fixes #56486.
Change-Id: Ia336581ae7db1c3456699e69e14a3071f50c9f2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/559197
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This reverts CL 555776 (commit 704401ffa06).
Scores of tests break inside Google, and there was a test for the old behavior,
so clearly we thought it was correct at one point.
An example of code that broke inside Google is:
func (pn ProjectNumber) PaddedHexString() string {
return fmt.Sprintf("%016s", strconv.FormatInt(int64(pn), 16))
}
Here is another example:
// IPv4toISO create ISO address base on a given IPv4 address.
func IPv4toISO(v4 string) (string, error) {
if net.ParseIP(v4).To4() == nil {
return "", fmt.Errorf("invalid IPv4 address")
}
s := strings.Split(v4, ".")
var ss string
for _, n := range s {
ss = ss + fmt.Sprintf("%03s", n)
}
if len(ss) != 12 {
return "", fmt.Errorf("invalid IPv4 address")
}
return fmt.Sprint("49.0001." + ss[0:4] + "." + ss[4:8] + "." + ss[8:12] + ".00"), nil
}
This is doing the weird but apparently standard conversion from
IPv4 to ISO ISIS Area 1 (see for example [1]).
Here is an example from github.com/netbirdio/netbird:
func generateNewToken() (string, string, error) {
secret, err := b.Random(PATSecretLength)
if err != nil {
return "", "", err
}
checksum := crc32.ChecksumIEEE([]byte(secret))
encodedChecksum := base62.Encode(checksum)
paddedChecksum := fmt.Sprintf("%06s", encodedChecksum)
plainToken := PATPrefix + secret + paddedChecksum
hashedToken := sha256.Sum256([]byte(plainToken))
encodedHashedToken := b64.StdEncoding.EncodeToString(hashedToken[:])
return encodedHashedToken, plainToken, nil
}
base62.Encode returns a string no leading zeros; the %06s adds leading zeros.
Are there other ways to write these examples? Yes.
Has all this code worked until now? Also yes.
The change to this behavior observed that right padding doesn't
add zeros, only left padding, but that makes sense: in numbers
without decimal points, zeros on the left preserve the value
while zeros on the right change it.
Since we agree that this case is probably not important either way,
preserve the long-time behavior of %0s.
Will document it in a followup CL: this is a clean revert.
Reopen #56486.
[1] https://community.cisco.com/t5/routing/isis-net-address-configuration/m-p/1338984/highlight/true#M127827
Change-Id: Ie7dd35227f46933ccc9bfa1eac5fa8608f6d1918
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It's what the documentation says, and oddly it already behaves correctly
for right padding, not left. (We never pad with zeros on the right.)
Just don't do it.
Fixes #56486
Change-Id: I2465edea93c69084e33bee0d945d5a1b85e6cd14
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Change-Id: I4edf8bd6f9ab813acf1d05c603f6f562fa00cb48
Reviewed-on: https://go-review.googlesource.com/c/go/+/529975
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https://go.dev/cl/524940 swapped a call to Slice with Bytes,
but the comment below still referenced Slice.
Change-Id: Iedc772e1c49c4108bcd06f4cea0e637f011d053c
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This is part of a series of CLs that aim to reduce how often
interface arguments escape for the print functions in fmt.
Prior to this change, one reason arguments escape is because
printValue calls reflect.Value.Slice, which causes its
value argument to escape (though at this CL, that is
shrouded in the fmt escape analysis logs by other
printValue escape reasons).
This CL avoids that usage by calling f.Bytes instead,
which is possible because we know f is a slice of bytes
or an addressable array of bytes.
Arguments still escape for other reasons.
Change-Id: Ic3f064117a364007e1dd3197cef9d641abbf784a
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This is part of a series of CLs that aim to reduce how often
interface arguments escape for the print functions in fmt.
Prior to this change, one reason arguments escape is because
fmtPointer calls reflect.Value.Pointer:
./print.go:551:39: parameter value leaks to <heap> for (*pp).fmtPointer with derefs=0:
./print.go:551:39: flow: <heap> ← value:
./print.go:551:39: from reflect.Value.Pointer(value) (call parameter) at ./print.go:555:20
printValue also has its value argument escape for this reason,
among others.
This CL changes those uses to reflect.Value.UnsafePointer instead,
which does not cause an escape.
Arguments still escape for other reasons.
Change-Id: I81c4f737f11fe835c5ccb122caee40a39b553451
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Change-Id: I52c9ed0c1a178f3ae3eb4f135d8f11018075fe3b
GitHub-Last-Rev: 407aa89c88fc7bb3e4ad9ef55c2a0c5c2f92642c
GitHub-Pull-Request: golang/go#62061
Reviewed-on: https://go-review.googlesource.com/c/go/+/519935
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"buffer" call the receiver "b" in other method, don't call it "bp" in
another. Keep the same receiver names, as prescribed in Go Code Review
Comments (https://go.dev/s/style#receiver-names).
Change-Id: I9fafc799a9e4102419ed743b941bca74e908f5c0
GitHub-Last-Rev: c8b851d372f3966e3c5eec7c331ad05aacb1ebda
GitHub-Pull-Request: golang/go#62066
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Before this CL, the documentation for Formatter suggested that
implementers of Format(f State, verb rune) could use Fprint(f) or
Sprint(f) to generate output. The Sprint(f) suggestion however is
invalid.
Fix that by simply suggesting Sprint() alongside Fprint(f).
Fixes #60358
Change-Id: I024e996f6360b812968ef2cd5073cb4c223459e3
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b.ResetTimer used to also stop the timer, however it does not anymore.
These benchmarks hadn't been fixed and as a result ended up measuring
some additional things.
Also, make some for loops more conventional.
Change-Id: I76ca68456d85eec51722a80587e5b2c9f5d836a1
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The unused analyzer handles dot imports now, so a few tests
have picked up vet errors. This CL errors like:
context/x_test.go:524:47: result of context.WithValue call not used
Change-Id: I711a62fd7b50381f8ea45ac526bf0c946a171047
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By convention, use `err` as prefix for variables of type `error`.
Change-Id: I9401d5d47e994a27be245b2c8b1edd55cdd52db1
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Change-Id: If092ae7c72b66f172ae32fa6c7294a7ac250362e
Reviewed-on: https://go-review.googlesource.com/c/go/+/463995
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uintptr case was not covered, so add test.
Change-Id: I894e06cb7db250d5dc1f14293c0d5834bfb00b9a
GitHub-Last-Rev: 92f8301cb03b503500def0ae076fbf4de8ec448c
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An error which implements an "Unwrap() []error" method wraps all the
non-nil errors in the returned []error.
We replace the concept of the "error chain" inspected by errors.Is
and errors.As with the "error tree". Is and As perform a pre-order,
depth-first traversal of an error's tree. As returns the first
matching result, if any.
The new errors.Join function returns an error wrapping a list of errors.
The fmt.Errorf function now supports multiple instances of the %w verb.
For #53435.
Change-Id: Ib7402e70b68e28af8f201d2b66bd8e87ccfb5283
Reviewed-on: https://go-review.googlesource.com/c/go/+/432898
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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This is both simpler and more performant.
The need for fmt.fmtC to manually check for utf8.MaxRune
is subtle to avoid overflow when converting uint64 to rune,
so a test case was added to exercise this edge case.
Change-Id: I0f2e6cce91dcd4cc6b88190c29807ca1c58e999d
Reviewed-on: https://go-review.googlesource.com/c/go/+/412335
Auto-Submit: Joseph Tsai <joetsai@digital-static.net>
Auto-Submit: Robert Griesemer <gri@google.com>
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
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Previously when a printer had a large buffer we dropped both
the buffer and the printer. There is no need to drop the printer
in this case, as a printer with a nil buffer is valid. So we
just drop the buffer and recycle the printer anyway.
This saves one allocation in case the buffer is over the limit.
Also tighten some of the tests for other unrelated cases.
Change-Id: Iba1b6a71ca4691464b8c68ab0b6ab0d4d5d6168c
Reviewed-on: https://go-review.googlesource.com/c/go/+/427395
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Rob Pike <r@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Sometimes when implementing a Formatter it's helpful to use the fmt
package without invoking the formatter. This new function, FormatString,
makes that easier in some cases by recreating the original formatting
directive (such as "%3.2f") that caused Formatter.Format to be
called.
The original Formatter interface is probably not what we would
design today, but we're stuck with it. FormatString, although it
takes a State as an argument, compensates by making Formatter a
little more flexible.
The State does not include the verb so (unlike in the issue), we
must provide it explicitly in the call to FormatString. Doing it there
minimizes allocations by returning the complete format string.
Fixes #51668
Updates #51195
Change-Id: Ie31c8256515864b2f460df45fbd231286b8b7a28
Reviewed-on: https://go-review.googlesource.com/c/go/+/400875
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
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These are straightforward variants of the existing Sprintf etc.,
but append the resulting bytes to a provided buffer rather than
returning a string.
Internally, there is potentially some allocation because the package
uses a pool of buffers to build its output. We make no attempt to
override that, so the result is first printed into the pool and
then copied to the output. Since it is a managed pool, asymptotically
there should be no extra allocation.
Fixes #47579
RELNOTE=yes
Change-Id: Icef797f9b6f0c84d03e7035d95c06cdb819e2649
Reviewed-on: https://go-review.googlesource.com/c/go/+/406177
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]
Run the updated gofmt, which reformats doc comments,
on the main repository. Vendored files are excluded.
For #51082.
Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407
Reviewed-on: https://go-review.googlesource.com/c/go/+/384268
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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go/doc in all its forms applies this replacement when rendering
the comments. We are considering formatting doc comments,
including doing this replacement as part of the formatting.
Apply it to our source files ahead of time.
For #51082.
Change-Id: Ifcc1f5861abb57c5d14e7d8c2102dfb31b7a3a19
Reviewed-on: https://go-review.googlesource.com/c/go/+/384262
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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A run of lines that are indented with any number of spaces or tabs
format as a <pre> block. This commit fixes various doc comments
that format badly according to that (standard) rule.
For example, consider:
// - List item.
// Second line.
// - Another item.
Because the - lines are unindented, this is actually two paragraphs
separated by a one-line <pre> block. This CL rewrites it to:
// - List item.
// Second line.
// - Another item.
Today, that will format as a single <pre> block.
In a future release, we hope to format it as a bulleted list.
Various other minor fixes as well, all in preparation for reformatting.
For #51082.
Change-Id: I95cf06040d4186830e571cd50148be3bf8daf189
Reviewed-on: https://go-review.googlesource.com/c/go/+/384257
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Fixes #51526.
Change-Id: I365a763454bd201f804df29f800416b1731b8ebc
Reviewed-on: https://go-review.googlesource.com/c/go/+/390436
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
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A long time ago, gofmt insisted on inserting tabs in /* */ comments
at the top level of the file, like this:
/*
Package doc comment.
*/
package p
Gofmt still insists on the tab for comments not at top level,
but it has relaxed the rules about top-level comments.
A few very old doc comments are indented, left over from the old rule.
We are considering formatting doc comments, and so to make
everything consistent, standardize on unindented doc comments
by removing tabs in the few doc comments that are still indented this way.
Also update some cmd/gofmt testdata to match.
Change-Id: I293742e39b52f8a48ec41f72ca4acdafa7ce43bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/384261
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Replace 24 spaces added in CL 389434 with 3 tabs,
so the new line is indented like other lines around it.
Updates #51419.
Change-Id: Ic3e50023a01f233c52dda53c36de2c461222d95c
Reviewed-on: https://go-review.googlesource.com/c/go/+/390674
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Adam Shannon <adamkshannon@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Fixes #51419
Change-Id: I0a32f41a6e6e01481ad58c7dddb57ec7085d77af
Reviewed-on: https://go-review.googlesource.com/c/go/+/389434
Reviewed-by: Rob Pike <r@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
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And then revert the bootstrap cmd directories and certain testdata.
And adjust tests as needed.
Not reverting the changes in std that are bootstrapped,
because some of those changes would appear in API docs,
and we want to use any consistently.
Instead, rewrite 'any' to 'interface{}' in cmd/dist for those directories
when preparing the bootstrap copy.
A few files changed as a result of running gofmt -w
not because of interface{} -> any but because they
hadn't been updated for the new //go:build lines.
Fixes #49884.
Change-Id: Ie8045cba995f65bd79c694ec77a1b3d1fe01bb09
Reviewed-on: https://go-review.googlesource.com/c/go/+/368254
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Updates #47651
Updates #48665
Change-Id: I69a87b45a5cad7a07fbd855040cd9935cf874554
Reviewed-on: https://go-review.googlesource.com/c/go/+/358454
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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The package-level documentation on fmt previously had only two formal
sections, for printing and scanning. Because of this, the section on
printing was very long, including some pseudo-sections describing
particular features. This feature makes those pseudo-sections into
proper sections, both to improve readability and so that those sections
have hyperlinks on documentation sites.
Fixes #46522
Change-Id: I38b7bc3447610faca446051da235edcbbd063f61
Reviewed-on: https://go-review.googlesource.com/c/go/+/324349
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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Change-Id: If1acb6a8533a782f80c7d1f0ad5155e98e1134dd
GitHub-Last-Rev: 03384a3d99dd89d802635f7ef48ce4456ec338b0
GitHub-Pull-Request: golang/go#44375
Reviewed-on: https://go-review.googlesource.com/c/go/+/293629
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Rob Pike <r@golang.org>
Trust: Rob Pike <r@golang.org>
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Formatter is mentioned further down, but it's helpful
to add it amongst the verbs and flags.
Background: I spent a while puzzling how "%+v" prints
a stack trace for github.com/pkg/errors when this isn't
documented under 'flags'.
Change-Id: Ic70145902a36780147dedca568b3cf482974fc38
GitHub-Last-Rev: 6571b499f211a2266812af66dd3b88dff602cabf
GitHub-Pull-Request: golang/go#39860
Reviewed-on: https://go-review.googlesource.com/c/go/+/240000
Reviewed-by: Rob Pike <r@golang.org>
Trust: Rob Pike <r@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
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Instead of returning a bad verb error format for runes above
utf8.Maxrune return a quoted utf8.RuneError rune (\ufffd).
This makes the behaviour consistent with the "c" verb and
aligns behaviour to not return bad verb error format when
a verb is applied to the correct argument type.
Fixes #14569
Change-Id: I679485f6bb90ebe408423ab68af16cce38816cd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/248759
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
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Fixes #36562
Change-Id: Id98ae9f7362cfb825b306c36649d505692d6d60e
GitHub-Last-Rev: 405d51b12eb04da8cc3559c92f1546e69a8c1a19
GitHub-Pull-Request: golang/go#36588
Reviewed-on: https://go-review.googlesource.com/c/go/+/215001
Reviewed-by: Rob Pike <r@golang.org>
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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>
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There were a couple of bugs, including not requiring a percent and
returning the wrong error for a bad format containing %%.
Both are addressed by fixing the first.
Fixes #34180.
Change-Id: If96c0c0258bcb95eec49871437d719cb9d399d9b
Reviewed-on: https://go-review.googlesource.com/c/go/+/202879
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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As mentioned in https://golang.org/issue/34062#issuecomment-529692313
src/cmd refers to older version of golang.org/x/tools.
Hence, not checking if multiple errors are used in the same fmt.Errorf.
Updating golang.org/x/tools version to latest in src/cmd.
Fixes #34062
Change-Id: I358dec2c3d3af2b19add766b8488b919109b81d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/196843
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
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Fixes #32815
Change-Id: Ia8ac9943a920a056ba7dbc69c1c70fa188f7aca8
Reviewed-on: https://go-review.googlesource.com/c/go/+/191578
Reviewed-by: Robert Griesemer <gri@golang.org>
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Fixes #32802
Change-Id: I756ca49285130b45777bd29de440db296d9632e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/184057
Run-TryBot: Baokun Lee <nototon@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Like panicking and erroring - wrapErrs should always be reset to
the default false. wrapErrs should only be true when set by Errorf.
Change-Id: I4d51cc2f0905109e232b0983dc5331bd34f138bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/178517
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
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When fmt.Errorf is provided with a %w verb with an error operand,
return an error implementing an Unwrap method returning that operand.
It is invalid to use %w with other formatting functions, to use %w
multiple times in a format string, or to use %w with a non-error
operand. When the Errorf format string contains an invalid use of %w,
the returned error does not implement Unwrap.
Change-Id: I534e20d3b163ab22c2b137b1c9095906dc243221
Reviewed-on: https://go-review.googlesource.com/c/go/+/176998
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
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Reverts the following changes:
https://go.googlesource.com/go/+/1f90d081391d4f5911960fd28d81d7ea5e554a8f
https://go.googlesource.com/go/+/8bf18b56a47a98b9dd2fa03beb358312237a8c76
https://go.googlesource.com/go/+/5402854c3557f87fa2741a52ffc15dfb1ef333cc
https://go.googlesource.com/go/+/37f84817247d3b8e687a701ccb0d6bc7ffe3cb78
https://go.googlesource.com/go/+/6be6f114e0d483a233101a67c9644cd72bd3ae7a
Partially reverts the followinng change, removing the errors.Opaque
function and the errors.Wrapper type definition:
https://go.googlesource.com/go/+/62f5e8156ef56fa61e6af56f4ccc633bde1a9120
Updates documentation referencing the Wrapper type.
Change-Id: Ia622883e39cafb06809853e3fd90b21441124534
Reviewed-on: https://go-review.googlesource.com/c/go/+/176997
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
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Renaming the method makes clear, both to readers and to vet,
that this method is not the implementation of io.ByteWriter.
Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.
For #31916.
Change-Id: I79da062ca6469b62a6b9e284c6cf2413c7425249
Reviewed-on: https://go-review.googlesource.com/c/go/+/176109
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Mea culpa. Beat Takeshi, sumimasen.
Fixes #31023.
Change-Id: Ie2f27a5867724a8a1b8c3082c3389c8fd6d1dee7
Reviewed-on: https://go-review.googlesource.com/c/go/+/168861
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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