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Remove logic related to guarding against allowing type parameters from
cmd/gofmt. At this point, it was only restricting tests.
Change-Id: Idd198389aaa422636d61af547a37be49f3be6c97
Reviewed-on: https://go-review.googlesource.com/c/go/+/329931
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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golang.org/cl/284138 introduced a regression: running "gofmt foo" would
silently ignore the file due to its lack of a ".go" extension, whereas
the tool is documented otherwise:
Given a file, it operates on that file; given a directory, it
operates on all .go files in that directory, recursively.
This wasn't caught as there were no tests for these edge cases. gofmt's
own tests are regular Go tests, so it's hard to test it properly without
adding an abstraction layer on top of func main.
Luckily, this kind of test is a great fit for cmd/go's own script tests,
and it just takes a few straightforward lines.
Finally, add the relevant logic back, with documentation to clarify its
intentional purpose.
Fixes #45859.
Change-Id: Ic5bf5937b8f95fcdad2b6933227c8b504ef38a82
Reviewed-on: https://go-review.googlesource.com/c/go/+/315270
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Trust: Daniel Martí <mvdan@mvdan.cc>
Trust: Robert Griesemer <gri@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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First, we can use flag.Args instead of flag.NArg and flag.Arg.
Second, just call filepath.WalkDir directly on each argument. We don't
need to check if each argument is a directory or not, since the function
will still work on regular files as expected.
To continue giving an error in the "gofmt does-not-exist.go" case, we
now need to return and handle errors from filepath.WalkDir, too.
Arguably, that should have always been the case.
While at it, I noticed that the printinf of the "diff" command did not
obey the "out" parameter. Fix that.
Finally, remove the code to ignore IsNotExist errors. It was added in CL
19301, though it didn't include tests and its reasoning is dubious.
Using gofmt on a directory treewhile another program is concurrently
editing or removing files is inherently racy. Hiding errors can hide
valid problems from the user, and such racy usages aren't supported.
Change-Id: I2e74cc04c53eeefb25231d804752b53562b97371
Reviewed-on: https://go-review.googlesource.com/c/go/+/284138
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Trust: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
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This CL changes our approach to guarding type parameter functionality
and API. Previously, we guarded type parameter functionality with the
parser.parseTypeParams parser mode, and were in the process of hiding
the type parameter API behind the go1.18 build constraint.
These mechanisms had several limitations:
+ Requiring the parser.parseTypeParams mode to be set meant that
existing tooling would have to opt-in to type parameters in all
places where it parses Go files.
+ The parseTypeParams mode value had to be copied in several places.
+ go1.18 is not specific to typeparams, making it difficult to set up
the builders to run typeparams tests.
This CL addresses the above limitations, and completes the task of
hiding the AST API, by switching to a new 'typeparams' build constraint
and adding a new go/internal/typeparams helper package.
The typeparams build constraint is used to conditionally compile the new
AST changes. The typeparams package provides utilities for accessing and
writing the new AST data, so that we don't have to fragment our parser
or type checker logic across build constraints. The typeparams.Enabled
const is used to guard tests that require type parameter support.
The parseTypeParams parser mode is gone, replaced by a new
typeparams.DisableParsing mode with the opposite sense. Now, type
parameters are only parsed if go/parser is compiled with the typeparams
build constraint set AND typeparams.DisableParsing not set. This new
parser mode allows opting out of type parameter parsing for tests.
How exactly to run tests on builders is left to a follow-up CL.
Updates #44933
Change-Id: I3091e42a2e5e2f23e8b2ae584f415a784b9fbd65
Reviewed-on: https://go-review.googlesource.com/c/go/+/300649
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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The const parseTypeParams was grouped with printer-related consts in
gofmt.go, implicitly suggesting that it must be kept in sync with
go/format/format.go.
Change-Id: Ia65dc15c27fef2c389f963071252adee32ec6bd6
Reviewed-on: https://go-review.googlesource.com/c/go/+/300451
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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While the dev.typeparams branch was merged, the type parameter API is
slated for go1.18. Hide these changes to the go/parser and go/types API.
This was done as follows:
+ For APIs that will probably not be needed for go1.18, simply unexport
them.
+ For APIs that we expect to export in go1.18, prefix symbols with '_',
so that the planned (upper-cased) symbol name is apparent.
+ For APIs that must be exported for testing, move both API and tests
to files guarded by the go1.18 build constraint.
+ parser.ParseTypeParams is unexported and copied wherever it is
needed.
+ The -G flag is removed from gofmt, replaced by enabling type
parameters if built with the go1.18 build constraint.
Notably, changes related to type parameters in go/ast are currently left
exported. We're looking at the AST API separately.
The new API diff from 1.16 is:
+pkg go/ast, method (*FuncDecl) IsMethod() bool
+pkg go/ast, method (*ListExpr) End() token.Pos
+pkg go/ast, method (*ListExpr) Pos() token.Pos
+pkg go/ast, type FuncType struct, TParams *FieldList
+pkg go/ast, type ListExpr struct
+pkg go/ast, type ListExpr struct, ElemList []Expr
+pkg go/ast, type TypeSpec struct, TParams *FieldList
+pkg go/types, type Config struct, GoVersion string
Change-Id: I1baf67e26279b49092e774309a836c460979774a
Reviewed-on: https://go-review.googlesource.com/c/go/+/295929
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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Add support for type parameters to cmd/gofmt, gated behind the -G flag.
The test was based on a test from go/printer, slightly modified to
exercise more formatting.
Change-Id: I489bcb3ad06e1ed4e6d9f5bc79825e60dcfe9953
Reviewed-on: https://go-review.googlesource.com/c/go/+/291011
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
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As part of #42026, these helpers from io/ioutil were moved to os.
(ioutil.TempFile and TempDir became os.CreateTemp and MkdirTemp.)
Update the Go tree to use the preferred names.
As usual, code compiled with the Go 1.4 bootstrap toolchain
and code vendored from other sources is excluded.
ReadDir changes are in a separate CL, because they are not a
simple search and replace.
For #42026.
Change-Id: If318df0216d57e95ea0c4093b89f65e5b0ababb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/266365
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Now that filepath.WalkDir is available, it is more efficient
and should be used in place of filepath.Walk.
Update the tree to reflect best practices.
As usual, the code compiled with Go 1.4 during bootstrap is excluded.
(In this CL, that's only cmd/dist.)
For #42027.
Change-Id: Ib0f7b1e43e50b789052f9835a63ced701d8c411c
Reviewed-on: https://go-review.googlesource.com/c/go/+/267719
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
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The old ioutil references are still valid, but update our code
to reflect best practices and get used to the new locations.
Code compiled with the bootstrap toolchain
(cmd/asm, cmd/dist, cmd/compile, debug/elf)
must remain Go 1.4-compatible and is excluded.
Also excluded vendored code.
For #41190.
Change-Id: I6d86f2bf7bc37a9d904b6cee3fe0c7af6d94d5b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/263142
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
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The old os references are still valid, but update our code
to reflect best practices and get used to the new locations.
Code compiled with the bootstrap toolchain
(cmd/asm, cmd/dist, cmd/compile, debug/elf)
must remain Go 1.4-compatible and is excluded.
For #41190.
Change-Id: I8f9526977867c10a221e2f392f78d7dec073f1bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/243907
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
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The StdFormat flag was added as part of CL 231461, where the primary aim
was to fix the bug #37476. It's expected that the existing printer modes
only adjust spacing but do not change any of the code text itself. A new
printing flag served as a way for cmd/gofmt and go/format to delegate
a part of formatting work to the printer—where it's more more convenient
and efficient to perform—while maintaining current low-level printing
behavior of go/printer unmodified.
We already have cmd/gofmt and the go/format API that implement standard
formatting of Go source code, so there isn't a need to expose StdFormat
flag to the world, as it can only cause confusion.
Consider that to format source in canonical gofmt style completely it
may require tasks A, B, C to be done. In one version of Go, the printer
may do both A and B, while cmd/gofmt and go/format will do the remaining
task C. In another version, the printer may take on doing just A, while
cmd/gofmt and go/format will perform B and C. This makes it hard to add
a gofmt-like mode to the printer without compromising on above fluidity.
This change prefers to shift back some complexity to the implementation
of the standard library, allowing us to avoid creating the new exported
printing flag just for the internal needs of gofmt and go/format today.
We may still want to re-think the API and consider if something better
should be added, but unfortunately there isn't time for Go 1.15. We are
not adding new APIs now, so we can defer this decision until Go 1.16 or
later, when there is more time.
For #37476.
For #37453.
For #39489.
For #37419.
Change-Id: I0bb07156dca852b043487099dcf05c5350b29e20
Reviewed-on: https://go-review.googlesource.com/c/go/+/240683
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
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Normalization of number prefixes and exponents was added in CL 160184
directly in cmd/gofmt. The same behavior change needs to be applied in
the go/format package. This is done by moving the normalization code
into go/printer, behind a new StdFormat mode, which is then re-used
by both cmd/gofmt and go/format.
Note that formatting of Go source code changes over time, so the exact
byte output produced by go/printer may change between versions of Go
when using StdFormat mode. What is guaranteed is that the new formatting
is equivalent Go code.
Clients looking to format Go code with standard formatting consistent
with cmd/gofmt and go/format would need to start using this flag, but
a better alternative is to use the go/format package instead.
Benchstat numbers on go test go/printer -bench=BenchmarkPrint:
name old time/op new time/op delta
Print-8 4.56ms ± 1% 4.57ms ± 0% ~ (p=0.700 n=3+3)
name old alloc/op new alloc/op delta
Print-8 467kB ± 0% 467kB ± 0% ~ (p=1.000 n=3+3)
name old allocs/op new allocs/op delta
Print-8 17.2k ± 0% 17.2k ± 0% ~ (all equal)
That benchmark data doesn't contain any numbers that need to be
normalized. More work needs to be performed when formatting Go code
with numbers, but it is unavoidable to produce standard formatting.
Fixes #37476.
For #37453.
Change-Id: If50bde4035c3ee6e6ff0ece5691f6d3566ffe8d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/231461
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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Apply CL 40930 to src/cmd/gofmt/internal.go to bring
it into sync with src/go/format/internal.go.
Also revert '\n' back to "\n\n" in one of the comments,
because the previous text was more accurate.
Gofmt replaces the "; " part of "package p; func _() {"
input with two newline characters, not one.
Updates #11844
Change-Id: I6bb8155a931b793311991d3cd8e006a2931b167a
Reviewed-on: https://go-review.googlesource.com/c/go/+/221497
Reviewed-by: Robert Griesemer <gri@golang.org>
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Change-Id: Idac8473d1752059bf2f617fd7a781000ee2c3af4
GitHub-Last-Rev: 02a3aa1a3241d3ed4422518f1c954cd54bbe858e
GitHub-Pull-Request: golang/go#35141
Reviewed-on: https://go-review.googlesource.com/c/go/+/203218
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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This is a 2nd attempt at fixing CL 162337 which had an off-by-one error.
We were unconditionally getting the position of the start of the next line
from the last import without checking whether it is the end of the file or not.
Fix the code to check for that and move the testcase added in CL 190523
to the end of the file for it to trigger the issue properly.
Fixes #18929
Change-Id: I59e77256e256570b160fea6a17bce9ef49e810df
Reviewed-on: https://go-review.googlesource.com/c/go/+/190480
Run-TryBot: Agniva De Sarker <agniva.quicksilver@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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Function sizes are computed to determine whether a function
can be kept on one line or should be split to several lines. Part of the
computation is the function header from the FUNC token and until the
opening { token.
Prior to this change, the function header size used distance from the
original source position of the current token, which led to issues when
the source between FUNC and the original source position was rewritten
(such as whitespace being collapsed). Now we take the current output
position into account, so that header size represents the reformatted
source rather than the original source.
The following files in the Go repository are reformatted with this
change:
* strings/strings_test.go
* cmd/compile/internal/gc/fmt.go
In both cases the reformatting is minor and seems to be correct given
the heuristic to single-line functions longer than 100 columns to
multiple lines.
Fixes #28082
Change-Id: Ib737f6933e09b79e83715211421d5262b366ec93
Reviewed-on: https://go-review.googlesource.com/c/go/+/188818
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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The go/ast package uses and guarantees nil slices for optional
elements that weren't present in the parsed source code, such as the
list of return values of a function. Packages using go/ast rely on
this attribute and check for nils explicitly.
One such package is go/printer. In the presence of empty slices
instead of nil slices, it generates invalid code, such as "case :"
instead of "default:". The issues that this CL fixes are all
manifestations of that problem, each for a different syntactic
element.
Fixes #33103
Fixes #33104
Fixes #33105
Change-Id: I219f95a7da820eaf697a4ee227d458ab6e4a80bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/187917
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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CL 162337 changed go/ast to better handle block comments,
but was reverted because it introduced an off-by-one bug.
This CL adds a test case to enforce the correct behavior
so that future changes do not break this again.
Updates #18929
Updates #33538
Change-Id: I2d25c139d007f8db1091b7a48b1dd20c584e2699
Reviewed-on: https://go-review.googlesource.com/c/go/+/190523
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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This reverts CL 162337.
Reason for revert: this introduces a regression
Fixes #33538
Updates #18929
Change-Id: Ib2320a840c6d3ec7912e8f414e933d04fbf11ab4
Reviewed-on: https://go-review.googlesource.com/c/go/+/189379
Reviewed-by: Robert Griesemer <gri@golang.org>
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The old code only normalized decimal integer imaginary number
literals. But with the generalized imaginary number syntax,
the number value may be decimal, binary, octal, or hexadecimal,
integer or floating-point.
The new code only looks at the number pattern. Only for decimal
integer imaginary literals do we need to strip leading zeroes.
The remaining normalization code simply ignore the 'i' suffix.
As a result, the new code is both simpler and shorter.
Fixes #32718.
Change-Id: If43fc962a48ed62002e65d5c81fddbb9bd283984
Reviewed-on: https://go-review.googlesource.com/c/go/+/183378
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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The current algorithm only assumed line comments which always
appear at the end of an import spec. This caused block comments
which can appear before a spec to be attached to the previous spec.
So while mapping a comment to an import spec, we maintain additional
information on whether the comment is supposed to appear on the left
or right of the spec.
And we also take into account the possibility of "//line" comments
in the source. So we use unadjusted line numbers.
While at it, added some more testcases from tools/go/ast/astutil/imports_test.go
Fixes #18929
Change-Id: If920426641702a8a93904b2ec1d3455749169f69
Reviewed-on: https://go-review.googlesource.com/c/go/+/162337
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
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An 'i' suffix on an integer literal marks the integer literal as
a decimal integer imaginary value, even if the literal without the
suffix starts with a 0 and thus looks like an octal value:
0123i == 123i // != 0123 * 1i
This is at best confusing, and at worst a potential source of bugs.
It is always safe to rewrite such literals into the equivalent
literal without the leading 0.
This CL implements this normalization.
Change-Id: Ib77ad535f98b5be912ecbdec20ca1b472c1b4973
Reviewed-on: https://go-review.googlesource.com/c/162538
Run-TryBot: Robert Griesemer <gri@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Rewrite non-decimal number prefixes to always use a lower-case base
("0X" -> "0x", etc.), and rewrite exponents to use a lower-case 'e'
or 'p'. Leave hexadecimal digits and 0-octals alone.
Comparing the best time of 3 runs of `time go test -run All` with
the time for a gofmt that doesn't do the rewrite shows no increase
in runtime for this bulk gofmt application (in fact on my machine
I see a small decline, probably due to cache effects).
R=Go1.13
Updates #12711.
Updates #19308.
Updates #29008.
Change-Id: I9c6ebed2ffa0a6a001c59412a73382090955f5a9
Reviewed-on: https://go-review.googlesource.com/c/160184
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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R=Go1.13
Updates #12711.
Updates #19308.
Updates #28493.
Updates #29008.
Change-Id: Icd25aa7f6e18ed671ea6cf2b1b292899daf4b1a5
Reviewed-on: https://go-review.googlesource.com/c/160018
Reviewed-by: Russ Cox <rsc@golang.org>
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I omitted vendor directories and anything necessary for bootstrapping.
(Tested by bootstrapping with Go 1.4)
Updates #27864
Change-Id: I7d9b68d0372d3a34dee22966cca323513ece7e8a
Reviewed-on: https://go-review.googlesource.com/137856
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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As per commit aa0ae75, handling of io.ErrShortWrite is done in
*File.Write() itself.
Change-Id: I92924b51e8df2ae88e6e50318348f44973addba8
Reviewed-on: https://go-review.googlesource.com/113696
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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gofmt's TestAll runs gofmt on all the go files in the tree and checks,
among other things, that gofmt is idempotent (i.e. that a second
invocation does not change the input again).
There's a known bug of gofmt not being idempotent (Issue #24472), and
unfortunately the fixedbugs/issue22662.go file triggers it. We can't
just gofmt the file, because it tests the effect of various line
directives inside weirdly-placed comments, and gofmt moves those
comments, making the test useless.
Instead, just skip the idempotency check when gofmt-ing the
problematic file.
This fixes go test on the cmd/gofmt package, and a failure seen on the
longtest builder.
Updates #24472
Change-Id: Ib06300977cd8fce6c609e688b222e9b2186f5aa7
Reviewed-on: https://go-review.googlesource.com/130377
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Flush file content to disk before diffing files,
may cause unpredictable results on Windows.
Convert from \r\n to \n when comparing diff result.
Change-Id: Ibcd6154a2382dba1338ee5674333611aea16bb65
Reviewed-on: https://go-review.googlesource.com/36750
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Since "columns of alignment" are terminated whenever indentation
changes from one line to the next, alignment with spaces will work
independent of the actually chosen tab width. Don't mention tab width
anymore.
Follow-up on https://golang.org/cl/38374/.
For #19618.
Change-Id: I58e47dfde57834f56a98d9119670757a12fb9c41
Reviewed-on: https://go-review.googlesource.com/38379
Reviewed-by: Rob Pike <r@golang.org>
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Fixes #19618.
Change-Id: I0ac450ff717ec1f16eb12758c6bf5e98b5de20e8
Reviewed-on: https://go-review.googlesource.com/38374
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Currently, this second line is treated a pre-formatted text as it's
indented relatively to the BUG() line.
The current state can be seen at:
https://golang.org/cmd/gofmt/#pkg-note-BUG
Unindenting makes the rest of the sentence part of the same paragraph.
Change-Id: I6dee55c9c321b1a03b41c7124c6a1ea15772c878
Reviewed-on: https://go-review.googlesource.com/38353
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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On Plan 9, GNU diff is called ape/diff.
Fixes #18999.
Change-Id: I7cf6c23c97bcc47172bbf838fd9dd72aefa4c18b
Reviewed-on: https://go-review.googlesource.com/36650
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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By using actual filename, diff output of "gofmt -d" can be used with
other commands like "diffstat" and "patch".
Example:
$ gofmt -d path/to/file.go | diffstat
$ gofmt -d path/to/file.go > gofmt.patch
$ patch -u -p0 < gofmt.patch
Fixes #18932
Change-Id: I21ce15eb77870d72f2c14bfd5e7c21e2c77dc9ab
Reviewed-on: https://go-review.googlesource.com/36374
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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We need to clear the pattern match map after the recursive rewrite
applications, otherwise there might be lingering entries that cause
match to fail.
Fixes #18987.
Change-Id: I7913951c455c98932bda790861db6a860ebad032
Reviewed-on: https://go-review.googlesource.com/36546
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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For #18130.
Change-Id: I95e84130df40db5241e0cc25c36873c3281199ff
Reviewed-on: https://go-review.googlesource.com/34987
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Fixes #18026
Change-Id: Id510f427ceffb2441c3d6f5bb5c93244e46c6497
Reviewed-on: https://go-review.googlesource.com/33477
TryBot-Result: Gobot Gobot <gobot@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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Fix spelling of "original" and "occurred" in new gofmt docs. The same
misspelling of "occurred" was also present in crypto/tls, I fixed it there as
well.
Change-Id: I67b4f1c09bd1a2eb1844207d5514f08a9f525ff9
Reviewed-on: https://go-review.googlesource.com/33138
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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This reverts the changes from https://golang.org/cl/33018: Instead
of writing the result of gofmt to a tmp file and then rename that
to the original (which doesn't preserve the original file's perm
bits, uid, gid, and possibly other properties because it is hard
to do in a platform-independent way - see #17869), use the original
code that simply overwrites the processed file if gofmt was able to
create a backup first. Upon success, the backup is removed, otherwise
it remains.
Fixes #17873.
For #8984.
Change-Id: Ifcf2bf1f84f730e6060f3517d63b45eb16215ae1
Reviewed-on: https://go-review.googlesource.com/33098
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Follow-up on https://golang.org/cl/33018.
For #8984.
Change-Id: I6655a5537a60d4ea3ee13029a56a75b150f8c8f8
Reviewed-on: https://go-review.googlesource.com/33020
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Write output to a temp file first and only upon success
rename that file to source file name.
Fixes #8984.
Change-Id: Ie40e49d2a4eb3c9462fe769ccbf055b4366eceb0
Reviewed-on: https://go-review.googlesource.com/33018
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Simplify map key literals in "gofmt -s"
Fixes #16461.
Change-Id: Ia61739b34a30ac27f6696f94a98809109a8a7b61
Reviewed-on: https://go-review.googlesource.com/25530
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
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PrintDefaults already calls os.Exit(2).
Change-Id: I0d783a6476f42b6157853cdb34ba69618e3f3fcb
Reviewed-on: https://go-review.googlesource.com/24844
Reviewed-by: Andrew Gerrand <adg@golang.org>
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A dot-import cannot possibly introduce a `len` function since that
function would not be exported (it's lowercase). Furthermore, the
existing code already (incorrectly) assumed that there was no other
`len` function in another file of the package. Since this has been
an ok assumption for years, let's leave it, but remove the dot-import
restriction.
Fixes #15153.
Change-Id: I18fbb27acc5a5668833b4b4aead0cca540862b52
Reviewed-on: https://go-review.googlesource.com/21613
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Change-Id: Iba82a5bd3846f7ab038cc10ec72ff6bcd2c0b484
Reviewed-on: https://go-review.googlesource.com/21377
Run-TryBot: Dave Cheney <dave@cheney.net>
Reviewed-by: Dave Cheney <dave@cheney.net>
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The tree's pretty inconsistent about single space vs double space
after a period in documentation. Make it consistently a single space,
per earlier decisions. This means contributors won't be confused by
misleading precedence.
This CL doesn't use go/doc to parse. It only addresses // comments.
It was generated with:
$ perl -i -npe 's,^(\s*// .+[a-z]\.) +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.) +([A-Z])')
$ go test go/doc -update
Change-Id: Iccdb99c37c797ef1f804a94b22ba5ee4b500c4f7
Reviewed-on: https://go-review.googlesource.com/20022
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dave Day <djd@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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This is a subset of https://golang.org/cl/20022 with only the copyright
header lines, so the next CL will be smaller and more reviewable.
Go policy has been single space after periods in comments for some time.
The copyright header template at:
https://golang.org/doc/contribute.html#copyright
also uses a single space.
Make them all consistent.
Change-Id: Icc26c6b8495c3820da6b171ca96a74701b4a01b0
Reviewed-on: https://go-review.googlesource.com/20111
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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gofmt prints an error to stderr when a file is deleted during its
`filepath.Walk()', which can happen in builds that change the tree
concurrently with gofmt running.
Change-Id: Ia1aa4804f6bc2172baf061c093e16fe56a3ee50c
Reviewed-on: https://go-review.googlesource.com/19301
Reviewed-by: Robert Griesemer <gri@golang.org>
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- Only accept valid if statement syntax in go/parser.
- Check AST again in go/types since it may have been modified and the
AST doesn't preclude other statements in the else branch of an if
statement.
- Removed a test from gofmt which verified that old-style if statements
permitting any statement in the else branch were correctly reformatted.
It's been years since we switched to the current syntax; no need to
support this anymore.
- Added a comment to go/printer.
Fixes #13475.
Change-Id: Id2c8fbcc68b719cd511027d0412a37266cceed6b
Reviewed-on: https://go-review.googlesource.com/17408
Reviewed-by: Russ Cox <rsc@golang.org>
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Applied identical change to cmd/gofmt/internal.go.
Fixes #11275.
Change-Id: Icb4bf0460c94c9e2830dd0d62c69376774cbda30
Reviewed-on: https://go-review.googlesource.com/15154
Reviewed-by: Alan Donovan <adonovan@google.com>
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