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Commit Graph

19 Commits

Author SHA1 Message Date
Alan Donovan
92480e4760 cmd/guru: update Emacs installation documentation
I was going to add a hook to enable go-guru-hl-identifier-mode
as a side effect of go-mode, but a person I consulted said that
was bad form; instead I merely documented it.

Change-Id: I48b00b71c7ba485b3d632211923509a74281acbe
Reviewed-on: https://go-review.googlesource.com/24834
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-07-15 15:54:54 +00:00
Alan Donovan
cda5280914 cmd/guru: fix quoting bug in Emacs binding
combine-and-quote-strings is buggy.  The value of this expression:
 (split-string-and-unquote (combine-and-quote-strings '("a" "" "b")))
is ("a" "b").  Consequently, if go-guru-scope is "", the following
"-tags" flag is interpreted as the scope.

Change-Id: I2955ffa2b95914e01d44b52690e810f816076d5c
Reviewed-on: https://go-review.googlesource.com/24746
Reviewed-by: Dominik Honnef <dominik@honnef.co>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-07-12 13:22:42 +00:00
Alan Donovan
2b3249681b cmd/guru: add menu to Emacs
Change-Id: Ife18d22f8f9b81a0e898a2b5da202feb1df23852
Reviewed-on: https://go-review.googlesource.com/24832
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-07-08 18:46:17 +00:00
Alan Donovan
9ae7e1769c cmd/guru: Emacs: run guru asynchronously using compilation-mode
We define a derived mode of compilation-mode, so that various
names say "guru" instead of "compilation", and use the hooks it
provides to apply our postprocessing incrementally instead of
all at the end.  It's much faster, and works nicely with the
new streaming referrers query.

Compilation mode requires a shell command, not an execve array,
so go-guru--compile-command joins the arguments with spaces.
go-guru--exec has been specialized for JSON mode,
and renamed to go-guru--json.

go-guru--set-scope-if-empty is now done by each mode, to avoid
the NEED-SCOPE parameter to go-guru--exec.

Change-Id: I692b8b28449b7cc17fd6251a152588f9d8b89ebc
Reviewed-on: https://go-review.googlesource.com/21772
Reviewed-by: Dominik Honnef <dominik@honnef.co>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-28 14:21:22 +00:00
Dominik Honnef
3114265539 cmd/guru: emacs: interpret byte offsets correctly
Change-Id: Id506c6c0b3f3c585781bfc38df1b665d507a7c33
Reviewed-on: https://go-review.googlesource.com/22019
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-17 18:15:17 +00:00
Dominik Honnef
837ce23ea3 cmd/guru: emacs: report most specific element in expand-region
Keep the leftmost element when removing duplicates, so that we report
"function call" instead of "expression statement".

Also split go-guru--enclosing into two functions.

Change-Id: Ie325613e292e36dda9558eda54bc7323fbf0bc6d
Reviewed-on: https://go-review.googlesource.com/22132
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-17 13:26:57 +00:00
Dominik Honnef
fb9c7fc43c cmd/guru: emacs: add function for expandiong region
The go-guru-expand-region function uses the "what" query to determine
the enclosing regions. Consecutive calls to go-guru-expand-region will
reuse a cached version of the list.

Change-Id: Ice9ac5540c1b639c6cbdc505866bbab347be1e98
Reviewed-on: https://go-review.googlesource.com/21754
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-04-13 01:08:39 +00:00
Alan Donovan
2da0720e4f cmd/guru: support streaming plain and -json output
Visible changes:
- "referrers" queries now emit a stream of results,
  so they start appearing quickly even in large queries.
  We no longer report the total number of matches.
- packageReferrers now also uses AfterTypeCheck hook and streaming.
- XML support has been dropped.
- The -format flag has been replaced by -json.

JSON protocol changes:
- The enclosing Result struct has been removed.
- Likewise the 'mode' field (since the caller knows it already)
- "freevars" and "referrers" now emit a stream of objects
  In the case of referrers, the first object has a different from the rest.
- The "referrers" results include the text of the matching line
  (parity with -json=false)

Implementation details:
- the concurrency-safe q.Output function can be called
  many times, each with a queryResult to print.
- fset is no longer saved in Query (cleaner)
- queryResult methods renamed PrintPlain, JSON

Change-Id: I41a4e3f57f266fcf043ece4045bca82c6f6a356f
Reviewed-on: https://go-review.googlesource.com/21397
Reviewed-by: Michael Matloob <matloob@golang.org>
2016-04-11 19:51:55 +00:00
Dominik Honnef
74b98c2c7a cmd/guru: emacs: only check modified buffers with file names
We cannot determine the extension of buffers with no file names (not
without throwing an error, anyway.)

Change-Id: I2b10390da738d71b6f95a6f668d3b92b54db29ed
Reviewed-on: https://go-review.googlesource.com/20470
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-28 14:50:23 +00:00
Dominik Honnef
fc3ceb1825 cmd/guru: emacs: update default-directory
That way, running guru on /a/foo.go, followed by /b/bar.go won't leave
the user with a display buffer that still defaults to /a/

Change-Id: I3f9b085c6d206ac2adc269fc2009799c624c371a
Reviewed-on: https://go-review.googlesource.com/20475
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-28 14:50:15 +00:00
Dominik Honnef
999f507100 cmd/guru: emacs: store output in separate buffer
Now that we have both interactive and non-interactive uses of the guru,
we should separate the command output buffer from the display buffer.

Change-Id: I50082fdc3847c7b12869e204509141e906df3852
Reviewed-on: https://go-review.googlesource.com/20473
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-28 14:50:08 +00:00
Dominik Honnef
5c5d833208 cmd/guru: emacs: support running on nameless buffers
By using guru's -modified flag and making up a file name, we can run
guru on a buffer that has no file attached to it. This feature will only
be useful for queries that operate on single files, as otherwise our made
up name could cause conflicts.

This will be useful for the "what" query and features using it.

Change-Id: I3d199bc0548245d59ba7b492f57beb9422d7f43d
Reviewed-on: https://go-review.googlesource.com/20431
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-28 14:50:02 +00:00
Dominik Honnef
824b504fc7 cmd/guru: emacs: highlight all instances of an identifier
Implement the "what" query and use it to get all uses of an
identifier (the "sameids" attribute). The user can either manually call
go-guru-hl-identifier, which will highlight all instances of the
identifier under point, or they can enable the
go-guru-hl-identifier-mode minor mode. The minor mode sets up an idle
timer, which will highlight the current identifier after a configurable
timeout. If the user modifies the buffer, or moves point off of an
identifier, we clear the highlight.

Change-Id: Iac870f3bcd17e0002eafcba0b73f07adaa03cd76
Reviewed-on: https://go-review.googlesource.com/20433
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-25 02:11:11 +00:00
Dominik Honnef
c5b51756ce cmd/guru: emacs: add go-guru-debug variable
Don't print debug messages unless go-guru-debug is set.

Change-Id: I1332a0b10eba1d1107ef987734b2b787ae28d9c2
Reviewed-on: https://go-review.googlesource.com/20432
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-09 20:00:51 +00:00
Dominik Honnef
b023cf6107 cmd/guru: emacs: update scope documentation
Also fix a typo in the tool's help string.

Change-Id: I54a9ed4a5515b137b0fbf1b2391dd6fa84b2d2d8
Reviewed-on: https://go-review.googlesource.com/20474
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-09 15:55:45 +00:00
Konstantin Shaposhnikov
7a73fe1b6c cmd/guru: emacs: add default key binding for whicherrs
Bind go-guru-whicherrs to `C-C C-o e'

Also remove go-guru-callgraph as callgraph mode is not supported
by guru.

Change-Id: Id233d178629a3cafc00e4f9640191c3d3c673cf1
Reviewed-on: https://go-review.googlesource.com/20310
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-07 15:54:09 +00:00
Dominik Honnef
adda3a6894 cmd/guru: emacs: push mark in go-guru-definition
This allows users to swap point and mark to jump between use and
definition in the same buffer, or pop-tag-mark (M-*) to jump back to the
use even between multiple buffers.

This mirrors the behaviour of godef-jump from go-mode.

Also remove an obosolete TODO and fix a typo.

Change-Id: I614090493b565acadf359ebb4c7092f4c673fd56
Reviewed-on: https://go-review.googlesource.com/20303
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-07 15:33:11 +00:00
Dominik Honnef
459f0c0f73 cmd/guru: emacs: allow passing tags to guru
Change-Id: I2e49d050add1f764a0e41300b2cca8da699f418a
Reviewed-on: https://go-review.googlesource.com/20302
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-03-07 02:38:31 +00:00
Konstantin Shaposhnikov
a917fb9d7b cmd/guru: emacs: package.el compatibility changes
Make go-guru compatible with package.el prior to uploading this pacakge to
MELPA.

Also add ;;;###autoload magic comments, so that the go-guru-xxx commands can
be used without need to explicitly (require 'go-guru) first.

Change-Id: I21c7f5f354fb7b39877a05c2a9ffecd02ab022f6
Reviewed-on: https://go-review.googlesource.com/19789
Reviewed-by: Dominik Honnef <dominik@honnef.co>
Reviewed-by: Alan Donovan <adonovan@google.com>
2016-02-26 04:34:18 +00:00