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319 Commits

Author SHA1 Message Date
Robert Griesemer
dea4394a67 instead of unlabeled statements, have a single labeled statement 
- no syntactic or semantic change

R=r
DELTA=45  (24 added, 18 deleted, 3 changed)
OCL=26349
CL=26368
 2009-03-16 17:36:52 -07:00
Russ Cox
f8ba0f4511 mem.html: nit 
go_spec.html: document const type propagation

R=ken
OCL=26223
CL=26225
 2009-03-12 19:04:56 -07:00
Rob Pike
9b5d82327b s/expressios/expressions/ 
OCL=26222
CL=26222
 2009-03-12 18:47:49 -07:00
Rob Pike
e20834092f weasel words about types in shift expressions suggested by rsc 
R=rsc
OCL=26220
CL=26220
 2009-03-12 18:40:07 -07:00
Rob Pike
ce9417ee1a fix language regarding type of numeric literals 
R=rsc
DELTA=4  (0 added, 2 deleted, 2 changed)
OCL=26208
CL=26212
 2009-03-12 17:08:47 -07:00
Rob Pike
307ec21932 what is the name for "&^". let's go with bit clear (and not) 
R=rsc
DELTA=14  (0 added, 0 deleted, 14 changed)
OCL=26159
CL=26206
 2009-03-12 15:53:56 -07:00
Rob Pike
0282719387 fix unqouted & 
R=gri
OCL=26158
CL=26158
 2009-03-11 22:02:18 -07:00
Rob Pike
cd04ec95ea bit clear: &^ and &^= 
R=gri
DELTA=5  (3 added, 0 deleted, 2 changed)
OCL=26155
CL=26157
 2009-03-11 21:59:05 -07:00
Rob Pike
ef1b9653dd conversions are mostly cleaned up; bring the spec in line. 
R=gri
DELTA=31  (12 added, 18 deleted, 1 changed)
OCL=25974
CL=25976
 2009-03-09 22:35:06 -07:00
Robert Griesemer
b813ee0e44 revert QualifiedIdent to old production 
R=r
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=25732
CL=25777
 2009-03-05 15:01:54 -08:00
Rob Pike
811dd2584c fix an HTML glitch. 
say a little more about package main.

R=rsc
DELTA=7  (4 added, 0 deleted, 3 changed)
OCL=25725
CL=25725
 2009-03-04 20:39:39 -08:00
Russ Cox
5958dd6f94 Suggested tweaks up to package section. 
Major ones:
* Be consistent: "numeric type" and "arithmetic operator".
* if/swtch take "simple statement" not "short variable declaration".
* There was a comment that implied for x,y := range z() might
  evaluate z() multiple times.  I deleted it.

R=r,gri
DELTA=124  (24 added, 4 deleted, 96 changed)
OCL=25706
CL=25715
 2009-03-04 17:19:21 -08:00
Russ Cox
461dd9126c change Go logo to link to home page 
fix grammar for forward declaration of interface, struct.

move array down next to slice.

fix type equal example for structs.

R=r,gri
DELTA=247  (122 added, 114 deleted, 11 changed)
OCL=25694
CL=25704
 2009-03-04 14:44:51 -08:00
Rob Pike
337ce2220f rephrase redundancy. 
R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=25652
CL=25656
 2009-03-03 16:10:15 -08:00
Russ Cox
7a5e97ba91 The final piece of the alternative to my parens proposal 
(i.e., the status quo with braces in composite literals).

DELTA=20  (16 added, 0 deleted, 4 changed)
OCL=25640
CL=25646
 2009-03-03 15:40:30 -08:00
Russ Cox
be2edb5761 Automated g4 rollback of changelist 25024, 
plus significant hand editing.

Back to T{x} for composite literals.

R=r
OCL=25612
CL=25632
 2009-03-03 08:39:12 -08:00
Russ Cox
e8b43190bb clarify conversions vs type guards. 
allow conversions between equal types.

R=r
DELTA=15  (4 added, 4 deleted, 7 changed)
OCL=25618
CL=25630
 2009-03-03 08:10:25 -08:00
Rob Pike
da34bea950 redo poor example of slices. 
R=rsc
OCL=25614
CL=25614
 2009-03-02 20:17:12 -08:00
Rob Pike
da38974c88 address most of the editorial comments through "types" 
R=rsc
DELTA=41  (9 added, 4 deleted, 28 changed)
OCL=25611
CL=25611
 2009-03-02 19:13:40 -08:00
Rob Pike
426335f87b delete paragraph about unimplemented select-on-type feature. 
change () to {} in all composite literals

DELTA=20  (0 added, 7 deleted, 13 changed)
OCL=25604
CL=25606
 2009-03-02 17:52:52 -08:00
Rob Pike
4659685b8f Packages. 
DELTA=170  (73 added, 21 deleted, 76 changed)
OCL=25556
CL=25594
 2009-03-02 16:17:29 -08:00
Rob Pike
96750f130c most of the rest. 
only the package section is untouched.

R=gri
DELTA=542  (186 added, 70 deleted, 286 changed)
OCL=25485
CL=25532
 2009-02-27 16:47:48 -08:00
Rob Pike
df3183f528 finish types. 
expressions.  (they were in pretty good shape; mostly cosmetic and HTML edits)

R=gri
DELTA=655  (226 added, 97 deleted, 332 changed)
OCL=25459
CL=25481
 2009-02-26 16:37:23 -08:00
Robert Griesemer
f88c6c136c fixed a typo 
R=r
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=25449
CL=25449
 2009-02-25 16:58:57 -08:00
Rob Pike
8f2330dd7a Continue editing types section. 
Do a little work polishing the "zero value" discussion.

R=gri
DELTA=486  (129 added, 120 deleted, 237 changed)
OCL=25392
CL=25444
 2009-02-25 16:20:44 -08:00
Rob Pike
cdbf619750 complete types 
R=gri
DELTA=29  (0 added, 12 deleted, 17 changed)
OCL=25388
CL=25391
 2009-02-24 17:47:45 -08:00
Rob Pike
a49305df1d text and formatting are now folded into go_spec; delete 
OCL=25292
CL=25383
 2009-02-24 15:18:21 -08:00
Rob Pike
5af7de3fe3 Updated the section on Types. 
Moved assignment compatibility to its own small section. Although most rules are type-specific,
some are not and it reduces redundancy to combine them.
Also, more experimentally, wrote a section on comparison compatibility.

R=gri
DELTA=382  (125 added, 122 deleted, 135 changed)
OCL=25355
CL=25382
 2009-02-24 15:17:59 -08:00
Rob Pike
a9ed30ff37 Move Types before Declarations and Scopes. 
This is the only change in this CL: only rearrangement, no content change, so subsequent edits will be easier to understand.

R=gri
OCL=25353
CL=25353
 2009-02-23 19:26:07 -08:00
Rob Pike
f27e9f072d Work on declarations, unsafe, alignment. 
Change <tt> to <code>

R=gri
DELTA=664  (222 added, 189 deleted, 253 changed)
OCL=25294
CL=25352
 2009-02-23 19:22:05 -08:00
Rob Pike
ce2bc3aabc add logo to documentation directory. 
R=rsc
OCL=25293
CL=25293
 2009-02-22 15:39:50 -08:00
Russ Cox
82c38cf8dd draft of memory model. 
R=tgs
DELTA=545  (545 added, 0 deleted, 0 changed)
OCL=25212
CL=25268
 2009-02-20 15:35:20 -08:00
Rob Pike
ff70f09d27 Rewrite lexical section. 
Put grammar productions into a box with a separate background color.

R=gri
DELTA=397  (132 added, 49 deleted, 216 changed)
OCL=25235
CL=25258
 2009-02-20 13:36:14 -08:00
Rob Pike
fd1f3830c1 autogenerate the table of contents 
R=rsc
DELTA=149  (1 added, 145 deleted, 3 changed)
OCL=25231
CL=25234
 2009-02-19 19:49:56 -08:00
Rob Pike
4501d348e8 Fix most HTML errors. 
Cut introduction.
Start rewrite.

R=gri
DELTA=201  (20 added, 118 deleted, 63 changed)
OCL=25226
CL=25229
 2009-02-19 17:31:36 -08:00
Robert Griesemer
c2d5586c76 go_spec.txt formatted in html. 
No textual changes except for html formatting.
Seems like a fine intermediate step.

R=r
DELTA=7638  (4079 added, 3559 deleted, 0 changed)
OCL=25211
CL=25224
 2009-02-19 16:49:10 -08:00
Rob Pike
3d50b1e0e8 Finish the lexical section. 
DELTA=176  (172 added, 0 deleted, 4 changed)
OCL=25182
CL=25222
 2009-02-19 16:20:00 -08:00
Rob Pike
d1107adb52 First piece of Go reference manual. 
R=ken,gri,rsc
DELTA=185  (185 added, 0 deleted, 0 changed)
OCL=25133
CL=25169
 2009-02-18 15:39:51 -08:00
Russ Cox
9f8f2e6130 convert composite literals from { } to ( ). 
only non-trivial changes are in
	convlit1.go
	golden.out

R=gri
OCL=25019
CL=25024
 2009-02-13 14:48:32 -08:00
Robert Griesemer
6f8df7aa3e - syntax for composite literals use () instead of {} 
- do not permit + for array concatenation anymore
  (not implemented and not a good idea)
- document that unsafe function results are compile time constants
- fixed minor typos

DELTA=41  (7 added, 11 deleted, 23 changed)
OCL=24899
CL=24927
 2009-02-11 21:57:15 -08:00
Robert Griesemer
38c232fe37 - language for embedded interfaces (as discussed this morning) 
- fixed a syntax error

R=r
DELTA=17  (15 added, 0 deleted, 2 changed)
OCL=24876
CL=24889
 2009-02-11 15:09:15 -08:00
Robert Griesemer
52c02c2d5d Added section on package unsafe: 
- contains a (proposed) constant Maxalign
- contains some text re" alignment guarantees

R=ken,r
DELTA=97  (94 added, 1 deleted, 2 changed)
OCL=24791
CL=24871
 2009-02-11 13:46:30 -08:00
Rob Pike
6506148850 a few small cleanups 
R=rsc
DELTA=21  (2 added, 2 deleted, 17 changed)
OCL=24638
CL=24654
 2009-02-08 10:17:23 -08:00
Robert Griesemer
d8a764cc7e - removed todo and restriction from spec (closures) 
- fixed typos, added a reminder for a todo

R=r
DELTA=23  (6 added, 4 deleted, 13 changed)
OCL=24611
CL=24615
 2009-02-06 17:01:10 -08:00
Robert Griesemer
77ccfb090c making go-spec conform with 6g: 
- equality of struct types requires equality of field names

DELTA=4  (0 added, 1 deleted, 3 changed)
OCL=24478
CL=24487
 2009-02-05 16:11:14 -08:00
Rob Pike
6aabf31a83 a few tweaks triggered by tgs's comments 
DELTA=46  (25 added, 1 deleted, 20 changed)
OCL=24342
CL=24354
 2009-02-04 15:13:07 -08:00
Rob Pike
25a2b3626d needless semicolons 
R=rsc
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=23967
CL=23970
 2009-01-30 15:10:22 -08:00
Robert Griesemer
2b9fe0ea24 Test balloon: Changed the spec to see the implications of changing the 
syntax of function types and making them "reference types" like slice,
map, and chan. First step in Russ' proposal.

DELTA=111  (32 added, 15 deleted, 64 changed)
OCL=23669
CL=23964
 2009-01-30 14:48:29 -08:00
Russ Cox
4cf7711568 update go code tree to new func rules. 
R=r
DELTA=367  (111 added, 59 deleted, 197 changed)
OCL=23957
CL=23960
 2009-01-30 14:39:31 -08:00
Rob Pike
b59dbd7fe0 rename variable at rsc's request 
R=rsc
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=23896
CL=23928
 2009-01-30 11:14:48 -08:00
Rob Pike
96777ea2a7 clean up server code in tutorial 
R=rsc
DELTA=15  (1 added, 0 deleted, 14 changed)
OCL=23889
CL=23889
 2009-01-30 10:18:58 -08:00
Robert Griesemer
7471eab96f - added missing sections on comparisons for some types 
- clarified legal map key types (must support comparison)
- updated open issues/todo list

R=r
DELTA=81  (48 added, 19 deleted, 14 changed)
OCL=23580
CL=23621
 2009-01-27 14:51:24 -08:00
Robert Griesemer
4a903e0b32 defer statement 
R=r
DELTA=30  (26 added, 0 deleted, 4 changed)
OCL=23533
CL=23569
 2009-01-27 09:29:40 -08:00
Robert Griesemer
18b05c1a8d - clarified slice index bounds rules 
- clarified comparisons of interfaces, slices, maps, channels
- removed respective TODO's

R=r
DELTA=76  (42 added, 16 deleted, 18 changed)
OCL=23132
CL=23479
 2009-01-26 09:34:19 -08:00
Robert Griesemer
ae299f0d69 cosmetic change only: 
- slightly simplified a couple of productions (CommClause, SwitchClause)
  by reordering

R=r
DELTA=5  (0 added, 0 deleted, 5 changed)
OCL=23304
CL=23323
 2009-01-22 15:16:48 -08:00
Rob Pike
ae05f00b46 update tutorial for new export scheme 
R=ken,rsc
DELTA=101  (9 added, 0 deleted, 92 changed)
OCL=23174
CL=23188
 2009-01-20 19:32:36 -08:00
Russ Cox
839a68469b delete export 
TBR=r
OCL=23121
CL=23127
 2009-01-20 14:40:40 -08:00
Robert Griesemer
9f4a27cbe6 - added TODO 
R=r
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=23003
CL=23003
 2009-01-16 15:44:08 -08:00
Robert Griesemer
1593ab6bb4 - cleanup todo list 
- fixed language for arrays slightly

R=r
DELTA=81  (39 added, 25 deleted, 17 changed)
OCL=23000
CL=23000
 2009-01-16 15:36:46 -08:00
Russ Cox
360962420c casify, cleanup sys 
R=r
OCL=22978
CL=22984
 2009-01-16 14:58:14 -08:00
Robert Griesemer
83c17606d7 - language for export via capitalized identifiers 
- removed explicit "export" declarations and keyword
- fixed a few glitches and adjusted examples

(The details of what "export" mean should be clarified
in the spec, this is just so we have a working doc for
now.)

R=r
DELTA=131  (7 added, 63 deleted, 61 changed)
OCL=22753
CL=22970
 2009-01-16 14:12:50 -08:00
Rob Pike
1a91b9a8a9 casify syscall and sequelae 
R=rsc
DELTA=337  (0 added, 1 deleted, 336 changed)
OCL=22950
CL=22950
 2009-01-16 11:36:44 -08:00
Rob Pike
293c8f8c65 casify tutorial examples 
will bring document in line in a later CL, which may include revisiting some of the names

R=rsc
DELTA=58  (0 added, 0 deleted, 58 changed)
OCL=22906
CL=22908
 2009-01-15 17:54:07 -08:00
Rob Pike
61f3302044 printf->Printf etc. 
the raw fmt routines will be another, smaller but subtler pass.

R=rsc
DELTA=157  (0 added, 0 deleted, 157 changed)
OCL=22851
CL=22851
 2009-01-15 13:48:11 -08:00
Rob Pike
ef51f4baf4 restore "os" identifier to keep consistent with text. 
R=presotto
OCL=22733
CL=22733
 2009-01-14 08:43:32 -08:00
Rob Pike
40d5435278 update tutorial to new language. 
add a section on printing
add a section on allocation

R=rsc
DELTA=500  (278 added, 15 deleted, 207 changed)
OCL=22381
CL=22456
 2009-01-09 15:16:31 -08:00
Ian Lance Taylor
dfc3e52310 Use make instead of new to allocate a channel. 
R=r
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=22452
CL=22455
 2009-01-09 15:13:26 -08:00
Robert Griesemer
91bbd6484b Adjusted language for literals: 
- now have struct, array, slice, and map literals

DELTA=34  (13 added, 6 deleted, 15 changed)
OCL=22180
CL=22204
 2009-01-07 09:31:35 -08:00
Rob Pike
8d21004b41 make the tutorial programs run again. 
(the text still needs fixing)
add the tutorial programs to the test run.

R=rsc
DELTA=41  (6 added, 0 deleted, 35 changed)
OCL=22174
CL=22174
 2009-01-06 15:49:27 -08:00
Robert Griesemer
633957bcce - documenting old "new()" 
- adding "init()"
- fixing some bugs with slice documentation

DELTA=118  (45 added, 7 deleted, 66 changed)
OCL=22084
CL=22136
 2009-01-06 13:23:20 -08:00
Robert Griesemer
a329471ced A first attempt to capture the type changes. 
Instead of trying to make open arrays look like arrays (which they aren't,
they just look like them), I decided to call them "slice types". As a result
they have value semantics, and one can really talk about what they really are.

Note:
- There are lots of missing details
- There are probably lots of mistakes

Looking for some initial feedback.

R=r
DELTA=444  (180 added, 189 deleted, 75 changed)
OCL=21769
CL=22020
 2009-01-05 11:17:26 -08:00
Robert Griesemer
6ccca61510 - receiver ident may be optional 
R=r
DELTA=5  (2 added, 0 deleted, 3 changed)
OCL=21508
CL=21510
 2008-12-18 13:29:11 -08:00
Robert Griesemer
4d23030859 - ripped out excessively fancy way of describing grammar 
in favor of explicit constructs
- simpler, clearer, and shorter overall
- no spec changes

(in retrospect it was just a (my) mistake to put it in in the first place)

R=r
DELTA=55  (13 added, 28 deleted, 14 changed)
OCL=21434
CL=21462
 2008-12-17 15:39:15 -08:00
Robert Griesemer
6715358652 - Add introduction section (1 page), essentially a condensed form 
of an earlier intro.
- Updated contents section.
- Removed left-over text from earlier documents.

No spec changes.

R=r
DELTA=379  (147 added, 227 deleted, 5 changed)
OCL=21312
CL=21331
 2008-12-16 14:45:09 -08:00
Robert Griesemer
30a1a8c922 language for range clause 
(I have deliberately left away the forms w/ := or = and
the forms with :)

R=r
DELTA=106  (44 added, 13 deleted, 49 changed)
OCL=21192
CL=21283
 2008-12-16 11:38:56 -08:00
Robert Griesemer
ef77c22626 - fixed minor bug in example (found by ken) 
R=r
OCL=21272
CL=21272
 2008-12-16 10:45:39 -08:00
Robert Griesemer
9dfb2ea7af closing a TODO: 
- define integer overflow as wrap-around
- be more specific about machine representation

DELTA=54  (34 added, 7 deleted, 13 changed)
OCL=20870
CL=21070
 2008-12-12 10:30:10 -08:00
Robert Griesemer
7354b864b5 Revised proposal for const/var cleanup, with 
Ken's suggestion for the "iota" extension to tuples.

DELTA=171  (88 added, 57 deleted, 26 changed)
OCL=20460
CL=20544
 2008-12-04 17:33:37 -08:00
Robert Griesemer
337af31781 - allow for multiple method names per function type in an interface decl. 
- added some initial language with respect to exports

R=r
DELTA=95  (47 added, 31 deleted, 17 changed)
OCL=19407
CL=19426
 2008-11-17 18:11:36 -08:00
Robert Griesemer
a1c85ed83e Package-export proposal: 
- syntax change
- missing: corresponding language

DELTA=5  (2 added, 0 deleted, 3 changed)
OCL=19221
CL=19352
 2008-11-17 09:51:56 -08:00
Robert Griesemer
434c6052d8 - language to define type equality rigorously 
- language for type guards
- fixed language for break statements

Also: Removed uses of "we" and replaced by impersonal language.
Minor cosmetic changes.

DELTA=237  (160 added, 34 deleted, 43 changed)
OCL=18620
CL=18800
 2008-11-07 13:34:37 -08:00
Robert Griesemer
69e26bf28d - added (incomplete) section on parameter passing 
- decribe passing of "..." parameters for a start

R=r
DELTA=70  (69 added, 0 deleted, 1 changed)
OCL=18503
CL=18503
 2008-11-04 16:46:45 -08:00
Robert Griesemer
f618f8940d - keeping track of to-do items 
R=r
DELTA=15  (10 added, 3 deleted, 2 changed)
OCL=18334
CL=18336
 2008-11-03 10:52:28 -08:00
Robert Griesemer
2e90e5424e - language for struct field tags 
DELTA=17  (15 added, 0 deleted, 2 changed)
OCL=18177
CL=18184
 2008-10-30 15:52:37 -07:00
Robert Griesemer
ebf14c625d - clarified section on numeric types: platform-dependent types 
are different from platform-independent types (not just aliases),
  except for byte, uint8
- added missing documentation of new(a, len, cap)
- updated todo/issues lists

DELTA=70  (24 added, 21 deleted, 25 changed)
OCL=17920
CL=18174
 2008-10-30 14:50:23 -07:00
Robert Griesemer
2bfa95741f Preparation for varargs: Proposal for syntax. 
DELTA=11  (7 added, 0 deleted, 4 changed)
OCL=17772
CL=17804
 2008-10-24 13:13:12 -07:00
Robert Griesemer
4712165b17 - clarified that composites are values created every time they 
are evaluated, removed corresponding TODO.

R=r
DELTA=5  (3 added, 1 deleted, 1 changed)
OCL=17746
CL=17751
 2008-10-23 17:19:56 -07:00
Robert Griesemer
071c91bf48 First cut at incorporating anonymous fields of pointer types into the 
spec.

I have deliberately removed the wording about receivers where it was
before because I think it needs to be more precise. There is a TODO.

DELTA=90  (54 added, 0 deleted, 36 changed)
OCL=17597
CL=17716
 2008-10-23 12:04:45 -07:00
Robert Griesemer
a6b546fe31 - be even more explicit about ideal number conversion in expressions 
- added a note with respect the difference of semantics of *p++ in Go vs C

R=r
DELTA=14  (6 added, 2 deleted, 6 changed)
OCL=17455
CL=17457
 2008-10-20 11:46:40 -07:00
Robert Griesemer
71696ac048 clarification of conversion rules for ideal numbers 
R=r
DELTA=21  (11 added, 1 deleted, 9 changed)
OCL=17316
CL=17316
 2008-10-16 15:03:22 -07:00
Robert Griesemer
b5e0cc7ef5 - added language re: interface compparison using ==, != 
(seems not controversial)

R=r
DELTA=8  (3 added, 2 deleted, 3 changed)
OCL=16940
CL=16940
 2008-10-10 16:34:44 -07:00
Robert Griesemer
57b34617e0 - Fixed bug in spec: PrimaryExpr is too restrictive in most places 
(for instance *p was not allowed on the left side of "="). Changed
to Expression everywhere (this is too liberal, UnaryExpr is probably
good enough, but it seems funny, and we need to check semantically
anyway). This matches 6g yacc.
- Write expression syntac recursively to express evaluation order
and precedence syntactically.
- Organized open issues list, folded in stuff from todo.txt which
is now obsolete.

R=r
DELTA=108  (41 added, 52 deleted, 15 changed)
OCL=16903
CL=16910
 2008-10-10 12:45:44 -07:00
Robert Griesemer
7271e048fc - added missing case for opt. semicolons (labels) 
- more precise wording by having an explicit list of cases
- simplified statement list

R=r
DELTA=16  (10 added, 0 deleted, 6 changed)
OCL=16871
CL=16875
 2008-10-09 20:05:24 -07:00
Robert Griesemer
bbfe31238b More spec progress: 
- language for selectors and array/map indices
- formal description of syntax notation used
- factor out common productions to better show
  symmetries in grammar

R=r
DELTA=113  (77 added, 13 deleted, 23 changed)
OCL=16853
CL=16865
 2008-10-09 17:12:09 -07:00
Robert Griesemer
aed247fdb9 - make optional semicolons explicit in grammar in all places 
except in statement list, where it is expressed in words
- allow for empty import, const, type, and var decl lists inside ()'s
- fixed grammar for inc/dec statements
- added empty statement as it appears to be accepted by 6g

R=r
DELTA=75  (23 added, 21 deleted, 31 changed)
OCL=16785
CL=16785
 2008-10-08 17:05:30 -07:00
Robert Griesemer
7abfcd981f - precise scope rules 
- forward decls for interface and struct types
- complete & incomplete types
- optional semicolons

R=r
DELTA=216  (95 added, 15 deleted, 106 changed)
OCL=16465
CL=16687
 2008-10-07 17:14:30 -07:00
Robert Griesemer
347cf67a85 - precise scope rules 
- clarified naming of invisible fields
- fixed syntax of expression statements

R=r
DELTA=70  (33 added, 4 deleted, 33 changed)
OCL=16424
CL=16439
 2008-10-03 14:04:28 -07:00
Rob Pike
569a107e0d Revised wording about sends. 
Evaluation is done before communication starts.

R=gri
DELTA=19  (4 added, 1 deleted, 14 changed)
OCL=16357
CL=16416
 2008-10-03 11:18:45 -07:00
Rob Pike
cd368a259e add a little text clarifying the behavior of 'select' 
R=gri
DELTA=18  (8 added, 2 deleted, 8 changed)
OCL=16356
CL=16356
 2008-10-02 10:37:12 -07:00
Robert Griesemer
5e92fb20b8 Clarifications re: anonymous fields in structs: 
- typename cannot refer to interface types
- clarified syntax
- added TODO re: type name issue with qualified identifiers

Changed/fixed order of operators/keywords.

R=r
DELTA=10  (3 added, 0 deleted, 7 changed)
OCL=16337
CL=16339
 2008-10-01 17:21:19 -07:00
Robert Griesemer
52a548034e - exceptional conditions during expression evaluation are undefined 
- "nil" for interfaces, comparison against "nil"

R=r
DELTA=38  (24 added, 5 deleted, 9 changed)
OCL=16207
CL=16211
 2008-09-30 13:02:50 -07:00
Robert Griesemer
c59b2a3db1 - type of array literals is always fixed array 
- changed terminology from "embedded type" to "anonymous field"

R=r
DELTA=38  (7 added, 2 deleted, 29 changed)
OCL=16193
CL=16196
 2008-09-30 10:57:59 -07:00
Robert Griesemer
a1065faf7c - corrections and more on interface types 
R=r
DELTA=35  (12 added, 13 deleted, 10 changed)
OCL=16162
CL=16164
 2008-09-29 20:37:46 -07:00
Rob Pike
81672ef15b fix some typos, mostly 
R=gri
OCL=16161
CL=16161
 2008-09-29 20:06:48 -07:00
Robert Griesemer
1f3e842c73 Some initial language towards embedded types and methods for all types. 
More to come.

R=r
DELTA=74  (47 added, 8 deleted, 19 changed)
OCL=16156
CL=16159
 2008-09-29 18:41:30 -07:00
Robert Griesemer
cd49927ca7 - added language about string literal concatenation 
- added "..." to list of delimiters (slightly re-arranged that table)
- rename of 2 productions for more consistent naming

R=r
DELTA=20  (7 added, 1 deleted, 12 changed)
OCL=16101
CL=16103
 2008-09-29 12:09:00 -07:00
Robert Griesemer
75a03a5b00 - added TODO 
- changed FieldDecl production in preparation for inlined types

R=r
DELTA=6  (4 added, 0 deleted, 2 changed)
OCL=16046
CL=16046
 2008-09-27 14:51:31 -07:00
Robert Griesemer
566e3b2043 - added language with respect to init() restrictions 
R=r
DELTA=10  (9 added, 0 deleted, 1 changed)
OCL=16016
CL=16016
 2008-09-26 16:41:50 -07:00
Robert Griesemer
133c68e9ac Simplification of Conversions section: 
- leave only basic type conversions in that section
- we have a section of composite literals which covers those
- we have a section prepared (but not written) on type guards
- the built-in function "convert" doesn't need to be exposed
  as it is redundant

R=r
DELTA=101  (6 added, 77 deleted, 18 changed)
OCL=15986
CL=15991
 2008-09-26 14:04:21 -07:00
Robert Griesemer
b9f8b9c43a - fixed Go statement syntax (only notational change) 
- simplified Assignment syntax (only notational change)
- added TODOs
- made old text invisible by moving it into HTML comment

R=r
DELTA=107  (4 added, 95 deleted, 8 changed)
OCL=15972
CL=15987
 2008-09-26 13:38:38 -07:00
Robert Griesemer
ac05579345 1) Fixed spec w/ respect to result types. 
2) Added proposal for making "if" statements consistent with the
   other control structures.

R=r
DELTA=59  (32 added, 6 deleted, 21 changed)
OCL=15583
CL=15964
 2008-09-26 11:15:14 -07:00
Ian Lance Taylor
128f052891 Correct two web links, add missing semicolon after &lt. 
R=r
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=15619
CL=15624
 2008-09-22 11:29:40 -07:00
Robert Griesemer
b90b213e61 Updated spec: 
- clarified constants and constant expressions
- clarified type of array composite literals (fixed vs open arrays)
- clarified type of map composite literals (need to use '&' to get
  a map pointer)
- added proposal for "if-else" (TBD)
- added TODO w/ respect to "x, ok = <-ch" (and for arrays)

R=r
DELTA=51  (35 added, 0 deleted, 16 changed)
OCL=15573
CL=15575
 2008-09-19 15:49:55 -07:00
Robert Griesemer
6a0fb60866 - added item to TODO list in go_spec 
- filed a bug

R=r
OCL=15517
CL=15517
 2008-09-18 23:16:22 -07:00
Robert Griesemer
2902a82ca4 adjusted doc to incorporate new channel notation 
(still a couple of TODO's with respect to the new
notation).

R=r
DELTA=71  (10 added, 11 deleted, 50 changed)
OCL=15419
CL=15443
 2008-09-17 13:57:11 -07:00
Rob Pike
f7a506bf42 tutorial code: 
tweak a program or two
delete unused programs
add shell script to run them all

R=gri
DELTA=213  (62 added, 147 deleted, 4 changed)
OCL=15435
CL=15437
 2008-09-17 12:14:52 -07:00
Rob Pike
592d2e3d8d update to new communications syntax 
R=gri
OCL=15417
CL=15417
 2008-09-16 19:40:38 -07:00
Rob Pike
6820196b75 section on service multiplexing 
R=gri
DELTA=75  (57 added, 4 deleted, 14 changed)
OCL=15394
CL=15398
 2008-09-16 13:14:44 -07:00
Rob Pike
db9002f152 replace 235 with sieve - less problematic 
add programs, not yet described, to demonstrate servers.

R=gri
DELTA=279  (177 added, 16 deleted, 86 changed)
OCL=15380
CL=15389
 2008-09-16 11:00:11 -07:00
Rob Pike
a43033a315 develop interfaces through cats 
sort
2,3,5

R=gri
DELTA=648  (647 added, 0 deleted, 1 changed)
OCL=15315
CL=15352
 2008-09-15 11:48:37 -07:00
Rob Pike
6693730e77 next section: i/o package that has structs, methods 
R=gri
DELTA=137  (134 added, 0 deleted, 3 changed)
OCL=15251
CL=15259
 2008-09-12 16:03:16 -07:00
Robert Griesemer
c8e18767e8 - hopefully improved language on label scopes 
R=r
DELTA=18  (12 added, 0 deleted, 6 changed)
OCL=15200
CL=15240
 2008-09-12 12:26:22 -07:00
Robert Griesemer
e28ccebd3a - simplified the ideal number terminology for better readability 
R=r
DELTA=24  (0 added, 10 deleted, 14 changed)
OCL=15188
CL=15188
 2008-09-11 18:23:28 -07:00
Robert Griesemer
ad71110669 - rewrote section on numeric literals (grammar easier to read, 
separate between ints and floats, added language regarding the
type of numeric literals)
- added language with respect to the scope of labels
- introduced ideal types for the purpose of the spec
- added language to expressions, operands
- added some more formal language about ideal type conversion
  (probably not 100% correct yet)

R=r
DELTA=145  (69 added, 4 deleted, 72 changed)
OCL=15165
CL=15186
 2008-09-11 17:48:20 -07:00
Rob Pike
c7ebfed655 add sections about types and constants 
R=gri
DELTA=133  (124 added, 0 deleted, 9 changed)
OCL=15122
CL=15143
 2008-09-11 10:21:02 -07:00
Rob Pike
27a56171c9 growing the tutorial 
R=gri
OCL=15115
CL=15115
 2008-09-10 17:11:04 -07:00
Ian Lance Taylor
203b55e319 Eliminate duplication of MethodDecl nonterminal by renaming 
the one associated with interface types.

R=gri
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=15092
CL=15096
 2008-09-10 13:24:47 -07:00
Robert Griesemer
667ef6c163 - incorporated bug fixes, todo's as suggested by rsc 
R=r
DELTA=32  (11 added, 2 deleted, 19 changed)
OCL=15087
CL=15093
 2008-09-10 13:00:32 -07:00
Rob Pike
ae4123f56b - stub for tutorial 
- tools to make it easy to embed programs

R=gri
DELTA=103  (97 added, 2 deleted, 4 changed)
OCL=15085
CL=15085
 2008-09-10 11:46:05 -07:00
Robert Griesemer
0416f994b7 - added convenience wrappers for sort 
(work now with Ken's latest compiler fix)
- exoanded test cases accordingly
- fixed a type in the spec (thx r)

R=r
DELTA=65  (62 added, 2 deleted, 1 changed)
OCL=15050
CL=15050
 2008-09-09 18:13:08 -07:00
Robert Griesemer
c59d2f13aa - moved spec todo's into spec (as html comment) 
- cleaned up todo.txt a bit

R=r
OCL=15009
CL=15009
 2008-09-09 10:48:14 -07:00
Robert Griesemer
4dc2528afa - added missing language to almost all types 
- fixed several examples to use new function type syntax
- added list of open spec issues to todo.txt

R=r
DELTA=143  (88 added, 8 deleted, 47 changed)
OCL=14974
CL=15007
 2008-09-09 10:37:19 -07:00
Robert Griesemer
7231ceb714 Proposal for new function type syntax as suggested by ken: 
- removed "func" from function type
- make it work by changing composite literal syntax to use {} instead of ()

FunctionType is now more in line with the rest of the declarations, as the
keyword "func" is now really part of the declaration and not part of the type.

R=r,ken
DELTA=49  (14 added, 12 deleted, 23 changed)
OCL=14864
CL=14955
 2008-09-08 15:01:04 -07:00
Robert Griesemer
cae0342230 - \' not allowed in string literals 
- \" not allowed in char literals
- replaces uses of printf with print

R=r,ken
DELTA=10  (2 added, 0 deleted, 8 changed)
OCL=14841
CL=14841
 2008-09-04 16:59:31 -07:00
Robert Griesemer
41d65ac4a5 - added missing language to operator section in spec 
R=r,ken
DELTA=100  (71 added, 9 deleted, 20 changed)
OCL=14827
CL=14832
 2008-09-04 15:17:27 -07:00
Robert Griesemer
f5cb258195 - clarification of type of array literals (always fixed array) 
- clarification of const decl syntax

R=r
DELTA=9  (4 added, 0 deleted, 5 changed)
OCL=14771
CL=14771
 2008-09-03 16:41:31 -07:00
Robert Griesemer
ce04d0197a - fixed typo 
R=r
OCL=14763
CL=14763
 2008-09-03 15:22:27 -07:00
Robert Griesemer
7a4ed4f8c4 - minor corrections to go_spec.txt 
- verified that all text from go_lang.txt is either present in its
  old form, or that we have corresponding updated sections for it
- delete go_lang.txt

R=r
DELTA=2389  (38 added, 2344 deleted, 7 changed)
OCL=14760
CL=14762
 2008-09-03 15:15:51 -07:00
Robert Griesemer
0976e34d65 Composite literal syntax. 
R=r
DELTA=25  (14 added, 2 deleted, 9 changed)
OCL=14750
CL=14753
 2008-09-03 13:37:44 -07:00
Robert Griesemer
354be785c6 - removed 'iota' from the keyword list 
- added missing operators

R=r
OCL=14672
CL=14672
 2008-08-29 17:16:47 -07:00
Robert Griesemer
df49fb3dc3 - Preliminary draft of what might become a real spec 
- All text taken from go_lang.txt (which is unchanged),
but added a contents section, and sorted the contents
section in a hopefully sensible manner to give it more
structure
- Reordered text to match order of contents section,
did not adjust the language (needs to be done),
but removed sections that were dulicates or invalid

High-level organization of the doc:
- Introduction
- Notation
- Source code representation
- Vocabulary
- Declarations and scope rules
- Types
- Expressions
- Statements
- Function declarations
- Packages
- Program initialization and execution

I hope this new structure will make it much clearer which
pieces are missing and where they need to go. go_lang.txt
has grown somewhat unstructured and new text was added as
we saw fit.

R=r
DELTA=2577  (2577 added, 0 deleted, 0 changed)
OCL=14639
CL=14639
 2008-08-28 17:47:53 -07:00
Robert Griesemer
2d697d67dc clarify pointer forward decls per ian's suggestion 
R=r
DELTA=13  (3 added, 7 deleted, 3 changed)
OCL=14406
CL=14406
 2008-08-21 17:18:01 -07:00
Robert Griesemer
2dabb6525a - explained function and method pointers 
- removed need for method types and literals
(gri & r)

R=r
DELTA=178  (101 added, 51 deleted, 26 changed)
OCL=14402
CL=14405
 2008-08-21 16:55:38 -07:00
Robert Griesemer
c2c49bec77 added scope rules, removed TODO 
R=r
DELTA=26  (19 added, 0 deleted, 7 changed)
OCL=14358
CL=14386
 2008-08-21 11:00:26 -07:00
Robert Griesemer
bb05942638 updated section on reserved words 
R=r
DELTA=44  (27 added, 2 deleted, 15 changed)
OCL=14353
CL=14355
 2008-08-20 16:32:00 -07:00
Rob Pike
9b1e6fddba fix one syntax error in declaration. 
reformat the bullet list about strings

R=gri
OCL=14128
CL=14128
 2008-08-12 13:21:49 -07:00
Rob Pike
68fb2d04d0 use tabs for indentation consistently 
R=gri
OCL=14125
CL=14125
 2008-08-12 11:38:34 -07:00
Rob Pike
f97832e4c2 New words regarding constants 
R=gri,ken
DELTA=64  (42 added, 3 deleted, 19 changed)
OCL=14116
CL=14124
 2008-08-12 11:20:34 -07:00
Robert Griesemer
fe582137f4 - removed fall-through for case: case: in switch statements 
- added ()'s to all print calls in examples
- augmented rule about use of identifiers

R=r
DELTA=11  (0 added, 1 deleted, 10 changed)
OCL=14097
CL=14097
 2008-08-11 18:09:31 -07:00
Robert Griesemer
e3fc124640 revert specification of pointer types to current implementation 
(do not allow explicit type forward declarations) and more clearly
specify resolution

R=r
DELTA=30  (9 added, 7 deleted, 14 changed)
OCL=13967
CL=13987
 2008-08-07 17:15:10 -07:00