Commit Graph

22 Commits

Author SHA1 Message Date
Ian Lance Taylor 6713b5dbbc cmd/doc: don't log on constraint type elements
Fixes #50256

Change-Id: I2327a0b28f8173c801ed2946bec8083967667027
Reviewed-on: https://go-review.googlesource.com/c/go/+/373314
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2021-12-20 23:32:14 +00:00
Agniva De Sarker ed3ae9a340 cmd/doc: properly display interface methods
Previously, we used to call doc.ToText to print each comment
in a comment group attached to an interface method. This broke any
preformatted code block attached to the comment, and displayed everything
aligned to a single column. Additionally, the name of the interface
also wasn't displayed which didn't show which interface
the method belonged to.

To fix this, we print the entire interface node using format.Node
which takes care of displaying the comments correctly, and we also
filter out the methods that don't match, so that the method can be
displayed as belonging to an interface.

As an example, previously it would show:

// Comment before exported method.
//
// // Code block showing how to use ExportedMethod
// func DoSomething() error {
// ExportedMethod()
// return nil
// }
func ExportedMethod()  // Comment on line with exported method.

Now, it shows:

type ExportedInterface interface {
	// Comment before exported method.
	//
	//	// Code block showing how to use ExportedMethod
	//	func DoSomething() error {
	//		ExportedMethod()
	//		return nil
	//	}
	ExportedMethod() // Comment on line with exported method.

}

Fixes #43188

Change-Id: I28099fe4aab35e08049b2616a3506240f57133cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/279433
Trust: Agniva De Sarker <agniva.quicksilver@gmail.com>
Trust: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Rob Pike <r@golang.org>
2021-03-19 03:05:26 +00:00
Agniva De Sarker 72e043e48b cmd/doc: show variables of unexported types for -all
We use the typedValue map to prevent showing typed variables
and constants from appearing in the VARIABLES/CONSTANTS section
because they will be anyways shown in the TYPES section
for that type.

However, when a type is unexported, but the variable is exported,
then unconditionally setting it to true in the map suppresses it
from being shown in the VARIABLES section. Thus, we set the
variable or constant in the typedValue map only when
the type name is exported.

Fixes #31067

Change-Id: Id3ec4b313c9ea7e3ce6fe279680d56f65451719f
Reviewed-on: https://go-review.googlesource.com/c/go/+/206129
Run-TryBot: Agniva De Sarker <agniva.quicksilver@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-12 04:09:39 +00:00
Segev Finer 4091cf972a cmd/doc: correctly indent pre-formatted blocks
They were previously indented at the same level as the normal text when
printing a single symbol or the description of a field.

Running "go doc text/template Must":
Before:
    func Must(t *Template, err error) *Template
        Must is a helper that wraps a call to a function returning (*Template,
        error) and panics if the error is non-nil. It is intended for use in
        variable initializations such as

        var t = template.Must(template.New("name").Parse("text"))

After:
    func Must(t *Template, err error) *Template
        Must is a helper that wraps a call to a function returning (*Template,
        error) and panics if the error is non-nil. It is intended for use in
        variable initializations such as

            var t = template.Must(template.New("name").Parse("text"))

Running "go doc http Request.Header":
Before:
    type Request struct {
        // Header contains the request header fields either received
        // by the server or to be sent by the client.
        //
        // If a server received a request with header lines,
        //
        // Host: example.com
        // accept-encoding: gzip, deflate
        // Accept-Language: en-us
        // fOO: Bar
        // foo: two
        //
        // then
        //
        // Header = map[string][]string{
        // "Accept-Encoding": {"gzip, deflate"},
        // "Accept-Language": {"en-us"},
        // "Foo": {"Bar", "two"},
        // }
        ...

After:
    type Request struct {
        // Header contains the request header fields either received by the server or
        // to be sent by the client.
        //
        // If a server received a request with header lines,
        //
        //     Host: example.com
        //     accept-encoding: gzip, deflate
        //     Accept-Language: en-us
        //     fOO: Bar
        //     foo: two
        //
        // then
        //
        //     Header = map[string][]string{
        //          "Accept-Encoding": {"gzip, deflate"},
        //          "Accept-Language": {"en-us"},
        //          "Foo": {"Bar", "two"},
        //     }
        ...

Fixes #29708

Change-Id: Ibe1a6a7a76d6b19c5737ba6e8210e3ad0b88ce16
GitHub-Last-Rev: 439c0fe70a
GitHub-Pull-Request: golang/go#31120
Reviewed-on: https://go-review.googlesource.com/c/go/+/169957
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2019-03-31 23:35:35 +00:00
Agniva De Sarker 055f16a9e9 cmd/doc: add a line gap after a method with no comment
Fixes #30492

Change-Id: Iec658bdf8bfac21e1bcc3eed900722cc535ec00a
Reviewed-on: https://go-review.googlesource.com/c/go/+/166178
Run-TryBot: Agniva De Sarker <agniva.quicksilver@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2019-03-08 07:12:55 +00:00
Rob Pike 294d16c9c5 cmd/doc: add a -src flag to show original source
It's long-desired but was blocked by #26835. That is now fixed, so
it's easy. When -src is off, we behave as before. But with -src
set, initialize the go/doc package to preserve the original AST and
things flow very easily.

With -src, since you're seeing inside the package source anyway it
shows unexported fields and constants: you see the original source.
But you still need -u to ask about them.

Fixes #18807

Change-Id: I473e90323b4eff0735360274dc0d2d9dba16ff8b
Reviewed-on: https://go-review.googlesource.com/c/140959
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-10-10 23:40:35 +00:00
elpinal 0504cd68e6 cmd/doc: suppress the error message for *package.ident embedded in struct type
The current implementation prints a log, "invalid program: unexpected
type for embedded field", when the form *package.ident is embedded in
a struct declaration.

Note that since valid qualified identifiers must be exported, the result
for a valid program does not change.

Change-Id: If8b9d7056c56b6a6c5482eb749168a63c65ef685
Reviewed-on: https://go-review.googlesource.com/84436
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-12-20 19:05:19 +00:00
Rob Pike 337f04bd6c cmd/doc: don't print a declaration twice
That can occur if we have -u set and there is an upper- and lower-case
name of the same spelling in a single declaration.

A rare corner case but easy to fix.

Fix by remembering what we've printed.

Fixes #21797.

Change-Id: Ie0b681ae8c277fa16e9635ba594c1dff272b8aeb
Reviewed-on: https://go-review.googlesource.com/78715
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-11-20 05:08:37 +00:00
Brad Fitzpatrick 39ed6b14b4 cmd/doc: print Go syntax when printing struct.field docs
Fixes #20928

Change-Id: I7f7aafb8ff4b5deb50c286a9ae81c34ee85e56a9
Reviewed-on: https://go-review.googlesource.com/47730
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-07-06 21:57:52 +00:00
Joe Tsai a1ea91219f cmd/doc: truncate long lists of arguments
Some field-lists (especially in generated code) can be excessively long.
In the one-line printout, it does not make sense to print all elements
of the list if line-wrapping causes the "one-line" to become multi-line.

// Before:
var LongLine = newLongLine("someArgument1", "someArgument2", "someArgument3", "someArgument4", "someArgument5", "someArgument6", "someArgument7", "someArgument8")

// After:
var LongLine = newLongLine("someArgument1", "someArgument2", "someArgument3", "someArgument4", ...)

Change-Id: I4bbbe2dbd1d7be9f02d63431d213088c3dee332c
Reviewed-on: https://go-review.googlesource.com/36031
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2017-02-24 10:52:50 +00:00
Russ Cox 9657e0b077 [dev.typealias] cmd/doc: update for type alias
For #18130.

Change-Id: I06b05a2b45a2aa6764053fc51e05883063572dad
Reviewed-on: https://go-review.googlesource.com/35670
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-01-25 17:27:07 +00:00
Joe Tsai 84743c348b cmd/doc: ensure summaries truly are only one line
The documentation for doc says:
> Doc prints the documentation comments associated with the item identified by its
> arguments (a package, const, func, type, var, or method) followed by a one-line
> summary of each of the first-level items "under" that item (package-level
> declarations for a package, methods for a type, etc.).

Certain variables (and constants, functions, and types) have value specifications
that are multiple lines long. Prior to this change, doc would print out all of the
lines necessary to display the value. This is inconsistent with the documented
behavior, which guarantees a one-line summary for all first-level items.
We fix this here by writing a general oneLineNode method that always returns
a one-line summary (guaranteed!) of any input node.

Packages like image/color/palette and unicode now become much
more readable since large slices are now a single line.

$ go doc image/color/palette
<<<
// Before:
var Plan9 = []color.Color{
	color.RGBA{0x00, 0x00, 0x00, 0xff},
	color.RGBA{0x00, 0x00, 0x44, 0xff},
	color.RGBA{0x00, 0x00, 0x88, 0xff},
	... // Hundreds of more lines!
}
var WebSafe = []color.Color{
	color.RGBA{0x00, 0x00, 0x00, 0xff},
	color.RGBA{0x00, 0x00, 0x33, 0xff},
	color.RGBA{0x00, 0x00, 0x66, 0xff},
	... // Hundreds of more lines!
}

// After:
var Plan9 = []color.Color{ ... }
var WebSafe = []color.Color{ ... }
>>>

In order to test this, I ran `go doc` and `go doc -u` on all of the
standard library packages and diff'd the output with and without the
change to ensure that all differences were intended.

Fixes #13072

Change-Id: Ida10b7796b7e4e174a929b55c60813a9eb7158fe
Reviewed-on: https://go-review.googlesource.com/25420
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2016-10-05 00:12:35 +00:00
Joe Tsai eca4e44611 cmd/doc: perform type grouping for constants and variables
In golang.org/cl/22354, we added functionality to group functions under the
type that they construct to. In this CL, we extend the same concept to
constants and variables. This makes the doc tool more consistent with what
the godoc website does.

$ go doc reflect | egrep "ChanDir|Kind|SelectDir"
<<<
// Before:
const RecvDir ChanDir = 1 << iota ...
const Invalid Kind = iota ...
type ChanDir int
type Kind uint
type SelectDir int
    func ChanOf(dir ChanDir, t Type) Type

// After:
type ChanDir int
    const RecvDir ChanDir = 1 << iota ...
type Kind uint
    const Invalid Kind = iota ...
type SelectDir int
    const SelectSend SelectDir ...
    func ChanOf(dir ChanDir, t Type) Type
>>>

Furthermore, a fix was made to ensure that the type was printed in constant
blocks when the iota was applied on an unexported field.

$ go doc reflect SelectSend
<<<
// Before:
const (
	SelectSend    // case Chan <- Send
	SelectRecv    // case <-Chan:
	SelectDefault // default
)

// After:
const (
	SelectSend    SelectDir // case Chan <- Send
	SelectRecv              // case <-Chan:
	SelectDefault           // default
)
>>>

Fixes #16569

Change-Id: I26124c3d19e50caf9742bb936803a665e0fa6512
Reviewed-on: https://go-review.googlesource.com/25419
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-09-30 23:40:48 +00:00
Joe Tsai 6317c213c9 cmd/doc: ensure functions with unexported return values are shown
The commit in golang.org/cl/22354 groups constructors functions under
the type that they construct to. However, this caused a minor regression
where functions that had unexported return values were not being printed
at all. Thus, we forgo the grouping logic if the type the constructor falls
under is not going to be printed.

Fixes #16568

Change-Id: Idc14f5d03770282a519dc22187646bda676af612
Reviewed-on: https://go-review.googlesource.com/25369
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-02 03:24:48 +00:00
Joe Tsai f5758739a8 cmd/doc: handle embedded interfaces properly
Changes made:
* Disallow star expression on interfaces as this is not possible.
* Show an embedded "error" in an interface as public similar to
how godoc does it.
* Properly handle selector expressions in both structs and interfaces.
This is possible since a type may refer to something defined in
another package (e.g. io.Reader).

Before:
<<<
$ go doc runtime.Error
type Error interface {

    // RuntimeError is a no-op function but
    // serves to distinguish types that are run time
    // errors from ordinary errors: a type is a
    // run time error if it has a RuntimeError method.
    RuntimeError()
    // Has unexported methods.
}

$ go doc compress/flate Reader
doc: invalid program: unexpected type for embedded field
doc: invalid program: unexpected type for embedded field
type Reader interface {
    io.Reader
    io.ByteReader
}
>>>

After:
<<<
$ go doc runtime.Error
type Error interface {
    error

    // RuntimeError is a no-op function but
    // serves to distinguish types that are run time
    // errors from ordinary errors: a type is a
    // run time error if it has a RuntimeError method.
    RuntimeError()
}

$ go doc compress/flate Reader
type Reader interface {
    io.Reader
    io.ByteReader
}
>>>

Fixes #16567

Change-Id: I272dede971eee9f43173966233eb8810e4a8c907
Reviewed-on: https://go-review.googlesource.com/25365
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-02 01:58:14 +00:00
Brad Fitzpatrick 519474451a all: make copyright headers consistent with one space after period
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>
2016-03-01 23:34:33 +00:00
Rob Pike 108218453a cmd/doc: handle embedded fields properly
The structure of the code meant that an embedded field was never
checked for export status. We need to check the name of the type,
which is either of type T or type *T, and T might be unexported.

Fixes #14356.

Change-Id: I56f468e9b8ae67e9ed7509ed0b91d860507baed2
Reviewed-on: https://go-review.googlesource.com/19701
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-02-22 23:40:02 +00:00
Joe Tsai 07d48993f2 cmd/doc: fix strange indentation artifacts with unexported fields
The NamePos value was not being set, and would default to a value
of zero. This would cause the printing logic to get confused as
to where exactly to place the "Has unexported fields" string.

A trivial package changes from

<
type A struct {
	A int // A
	B int
			// B
	// Has unexported fields.
}
>

to

<
type A struct {
	A int // A
	B int // B
	// Has unexported fields.
}
>

Fixes #12971

Change-Id: I53b7799a1f1c0ad7dcaddff83d9aaeb1d6b7823e
Reviewed-on: https://go-review.googlesource.com/16286
Run-TryBot: Joe Tsai <joetsai@digital-static.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2015-11-17 20:51:19 +00:00
Rob Pike 4e99ed6fef cmd/doc: don't drop const/var block if first entry is unexported
The code assumed that if the first entry was unexported, all the
entries were. The fix is simple: delete a bunch of code.

Fixes #12286.

Change-Id: Icb09274e99ce97df4d8bddbe59d17a5c0622e4c6
Reviewed-on: https://go-review.googlesource.com/14780
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-21 16:42:09 +00:00
Rob Pike cb3e2bf0ba cmd/doc: fix copy/paste error in test
Some of those consts were supposed to be vars.

Caught by Ingo Oeser.

Change-Id: Ifc12e4a8ee61ebf5174e4ad923956c546dc096e2
Reviewed-on: https://go-review.googlesource.com/11296
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-06-22 22:29:35 +00:00
Rob Pike 13c44d27b7 cmd/doc: add test for constructor, fix build
Most important: skip test on darwin/arm64 for unclear reasons.

First cut at the test missed this feature of go doc: when asking for
the docs for a type, include any function that looks like it constructs
a that type as a return value.

Change-Id: I124e7695e5d365e2b12524b541a9a4e6e0300fbc
Reviewed-on: https://go-review.googlesource.com/11295
Reviewed-by: Rob Pike <r@golang.org>
2015-06-20 10:35:38 +00:00
Rob Pike d0652e7f82 cmd/doc: add test
Refactor main a bit to make it possible to run tests without an exec every time.
(Makes a huge difference in run time.)

Add a silver test. Not quite golden, since it looks for pieces rather than the
full output, and also includes tests for what should not appear.

Fixes #10920.

Change-Id: I6a4951cc14e61763379754a10b0cc3484d30c267
Reviewed-on: https://go-review.googlesource.com/11272
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Rob Pike <r@golang.org>
2015-06-19 21:56:59 +00:00