Commit graph

22 commits

Author SHA1 Message Date
Rob Pike
ebb1566a46 strings.Split: make the default to split all.
Change the signature of Split to have no count,
assuming a full split, and rename the existing
Split with a count to SplitN.
Do the same to package bytes.
Add a gofix module.

R=adg, dsymonds, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4661051
2011-06-28 09:43:14 +10:00
Russ Cox
07abf1c732 fix tree for reflect rename
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4435067
2011-04-25 13:39:36 -04:00
Russ Cox
cded21a337 changes for more restricted reflect.SetValue
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4423043
2011-04-18 14:36:22 -04:00
Robert Griesemer
c78cddd7de gofmt: gofmt test harness bug fix
Don't use the rewrite rule from a previous test
for the next test if there is no rewrite rule
provided.

R=r, r2
CC=golang-dev
https://golang.org/cl/4419045
2011-04-14 16:33:29 -07:00
Robert Griesemer
a49e7f393f gofmt: don't crash when rewriting nil interfaces in AST.
The new reflection API makes it an error to call value.Set(x)
if x is invalid. Guard for it.

Added corresponding test case.

Fixes #1696.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4398047
2011-04-14 14:25:25 -07:00
Robert Griesemer
a5ca635287 gofmt: avoid endless loops
With the (partial) resolution of identifiers done
by the go/parser, ast.Objects point may introduce
cycles in the AST. Don't follow *ast.Objects, and
replace them with nil instead (they are likely
incorrect after a rewrite anyway).

- minor manual cleanups after reflect change automatic rewrite
- includes fix by rsc related to reflect change

Fixes #1667.

R=rsc
CC=golang-dev
https://golang.org/cl/4387044
2011-04-13 09:38:13 -07:00
Russ Cox
db5c5d6fa6 update go tree for reflect changes
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4353043
2011-04-08 12:27:58 -04:00
Robert Griesemer
32a7e46488 gofmt -r: match(...) arguments may be nil; add missing guards
Fixes #1446.

R=rsc
CC=golang-dev
https://golang.org/cl/3981043
2011-01-26 19:17:53 -08:00
Robert Griesemer
a6820b65cb gofmt: don't attempt certain illegal rewrites
(e.g.: echo 'package main' | gofmt -r 'x->7'
cannot change the package name to 7)

R=rsc
CC=golang-dev
https://golang.org/cl/3913041
2011-01-07 15:04:41 -08:00
Robert Griesemer
9d634e50c7 gofmt: rewriter matches apply to expressions only
Fixes #1384.

R=rsc
CC=golang-dev
https://golang.org/cl/3912041
2011-01-07 13:33:29 -08:00
Robert Griesemer
5a9ad8b9e3 go/ast: use token.Pos instead of token.Position; adjust all dependent code
Specifically:

	* lib/godoc:
	- provide file set (FSet) argument to formatters where needed

	* src/cmd:
	- cgo, ebnflint, godoc, gofmt, goinstall: provide file set (fset) where needed
	- godoc: remove local binary search with sort.Search (change by rsc),
	  extract file set for formatters

	* src/pkg:
	- exp/eval: remove embedded token.Position fields from nodes and replace
	  with named token.Pos fields; add corresponding Pos() accessor methods
	- go/token: added file.Line(), changed signature of File.Position()

	* test/fixedbugs/:
	- bug206.go: change test to not rely on token.Pos details

	* added various extra comments
	* Runs all.bash
	* gofmt formats all of src, misc w/o changes
	* godoc runs

	* performance:
	- The new version of godoc consumes about the same space after indexing
	  has completed, but indexing is half the speed. Significant space savings
	  are expected from smaller ASTs, but since they are thrown away after a
	  file has been indexed, this is not visible anymore. The slower indexing
	  time is due to the much more expensive computation of line information.
	  However, with the new compressed position information, indexing can be
	  rewritten and simplified. Furthermore, computing the line info can be
	  done more efficiently.

        New godoc, immediately after indexing completed (best of three runs):

	  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD  RSIZE  VSIZE
	44381 godoc        0.0%  0:38.00   4    19    149  145M   184K   148M   176M

	2010/12/03 17:58:35 index updated (39.231s, 18505 unique words, 386387 spots)
	2010/12/03 17:58:35 bytes=90858456 footprint=199182584
	2010/12/03 17:58:36 bytes=47858568 footprint=167295224

	Old godoc, immediately after indexing completed (best of three runs):

	  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD  RSIZE  VSIZE
	23167 godoc        0.0%  0:22.02   4    17    132  129M   184K   132M   173M

	2010/12/03 14:51:32 index updated (24.892s, 18765 unique words, 393830 spots)
	2010/12/03 14:51:32 bytes=66404528 footprint=163907832
	2010/12/03 14:51:32 bytes=46282224 footprint=163907832

	The different numbers for unique words/spots stem from the fact the the
	two workspaces are not exactly identical. The new godoc maintains a large
	file set data structure during indexing which (probably) is the reason
	for the larger heap (90858456 vs 66404528) before garbage collection.

R=rsc, r
CC=golang-dev
https://golang.org/cl/3050041
2010-12-06 14:23:18 -08:00
Robert Griesemer
daf64bf567 gofmt: don't substitute invalid positions with valid ones in rewrites
Fixes rewrite bug: 'f(x) -> f(0)' where functions "picked up" ... arguments.

R=rsc
CC=golang-dev
https://golang.org/cl/2279041
2010-09-24 12:58:08 -07:00
Robert Griesemer
1f9dfa294f go AST: First step towards augmenting AST with full type information.
- change ast.Ident back to contain the name and adjust all dependent code
- identifier object information will be added again through an optional
  typechecker phase (in the works).
- remove tracking of scopes in parser - it's easier to do this in a separate
  phase (in the works)
- in godoc, generate popup info table directly instead of through a formatter
  for simpler data flow (at the expense of a little bit more code)

Runs all tests.

As a result of this change, the currently shown popup information
(const, var, type, func, followed by identifier name) will not be
shown anymore temporarily.

R=rsc
CC=golang-dev
https://golang.org/cl/1994041
2010-08-13 10:42:18 -07:00
Rob Pike
38f1231f3e strings and bytes.Split: make count of 0 mean 0, not infinite.
Use a count of -1 for infinity.  Ditto for Replace.

R=rsc
CC=golang-dev
https://golang.org/cl/1704044
2010-07-01 14:08:14 -07:00
Robert Griesemer
b32f22b3f8 gofmt: fix for gofmt rewrite feature
Fixes #643.

R=rsc
CC=golang-dev
https://golang.org/cl/576041
2010-03-15 15:42:09 -07:00
Robert Griesemer
f39dc9fff2 More steps towards tracking of identifier scopes.
- provide scope to parse functions; if non-nil, parser uses the scope
  to declare and lookup identifiers
- resolve forward references where possible

R=rsc
CC=golang-dev
https://golang.org/cl/194098
2010-01-27 09:44:28 -08:00
Robert Griesemer
01b4f2dd23 Steps towards tracking scopes for identifiers.
- Identifiers refer now to the language entity (Object)
	  that they denote. At the moment this is at best an
	  approximation.

	- Initial data structures for language entities (Objects)
          and expression types (Type) independent of the actual
	  type notations.

	- Initial support for declaring and looking up identifiers.

	- Updated various dependent files and added support functions.

	- Extensively tested to avoid breakage. This is an AST change.

R=rsc
CC=golang-dev, rog
https://golang.org/cl/189080
2010-01-15 13:27:45 -08:00
Robert Griesemer
4ddcb0ea73 fix for gofmt rewrite matcher bug
R=rsc
CC=golang-dev
https://golang.org/cl/179096
2009-12-17 15:23:19 -08:00
Robert Griesemer
59a3cae402 - Parse expressions as opposed to statements for gofmt rewrite patterns.
Allows stand-alone types (e.g. []int as patterns) and doesn't require
a semicolon at the end (which are now mandatory terminators).

- Fix a matcher bug.

R=rsc
CC=golang-dev
https://golang.org/cl/179088
2009-12-16 16:53:56 -08:00
Robert Griesemer
5a1d3323fe 1) Change default gofmt default settings for
parsing and printing to new syntax.

                  Use -oldparser to parse the old syntax,
                  use -oldprinter to print the old syntax.

               2) Change default gofmt formatting settings
                  to use tabs for indentation only and to use
                  spaces for alignment. This will make the code
                  alignment insensitive to an editor's tabwidth.

                  Use -spaces=false to use tabs for alignment.

               3) Manually changed src/exp/parser/parser_test.go
                  so that it doesn't try to parse the parser's
                  source files using the old syntax (they have
                  new syntax now).

               4) gofmt -w src misc test/bench

	       1st set of files.

R=rsc
CC=agl, golang-dev, iant, ken2, r
https://golang.org/cl/180047
2009-12-15 15:33:31 -08:00
Russ Cox
edf7485a6e gofmt -r: documentation and minor fixes
fix a few paren insertion bugs in the printer too.

R=gri, r
CC=golang-dev
https://golang.org/cl/157119
2009-11-23 15:44:27 -08:00
Russ Cox
28e392d4bd gofmt: add -r flag to rewrite source code according to pattern
a little slow, but usable (speed unchanged when not using -r)

tweak go/printer to handle nodes without line numbers
more gracefully in a couple cases.

R=gri
https://golang.org/cl/156103
2009-11-20 15:09:54 -08:00