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842 Commits

Author SHA1 Message Date
Russ Cox
b7c4314ecb gc: correct type check for x, ok map assignment 
Fixes #288.

R=ken2
https://golang.org/cl/157162
 2009-11-24 16:11:48 -08:00
Sergio Luis O. B. Correia
6fc820729e go: makes it build for the case $GOROOT has whitespaces 
the bash scripts and makefiles for building go didn't take into account
the fact $GOROOT / $GOBIN could both be directories containing whitespaces,
and was not possible to build it in such a situation.

this commit adjusts the various makefiles/scripts to make it aware of that
possibility, and now it builds successfully when using a path with whitespaces
as well.

Fixes #115.

R=rsc, dsymonds1
https://golang.org/cl/157067
 2009-11-23 17:32:51 -08:00
Russ Cox
aa4c638b7b x[y:] for strings 
R=ken2
https://golang.org/cl/157114
 2009-11-20 11:42:28 -08:00
Russ Cox
652f55672d x[lo:] - gc and runtime. 
* add runtime sliceslice1 for x[lo:]
  * remove runtime arraytoslice, rewriting &arr into arr[0:len(arr)].
  * port cgen_inline into 8g, 5g.
  * use native memmove in maps

R=ken2
https://golang.org/cl/157106
 2009-11-20 09:11:46 -08:00
Russ Cox
d116a32727 gc: reject large channel values at compile time 
Fixes #144.

R=ken2
CC=agl1
https://golang.org/cl/156102
 2009-11-19 18:20:06 -08:00
Russ Cox
9be56adf3c gc: allow implicit conversion of *[10]int -> []int 
when used as arg to copy.

R=ken2
https://golang.org/cl/157071
 2009-11-18 14:26:28 -08:00
Rob Pike
7518613430 slicecopy was always using 16 (sizeof slice) for the size instead of size of element. 
R=rsc
CC=ken2, golang-dev
https://golang.org/cl/156083
 2009-11-18 13:43:48 -08:00
Ken Thompson
01c2de0c15 allow copy to be used without a return value 
R=rsc
https://golang.org/cl/156060
 2009-11-17 22:00:59 -08:00
Ken Thompson
c4606d05da install copy predefined 
did not test 386, but should work
shouldnt matter if copy is not used

R=rsc
https://golang.org/cl/156055
 2009-11-17 20:41:44 -08:00
Russ Cox
1ee83f851d gc: change "can we const evaluate this" from blacklist to whitelist 
R=ken2
https://golang.org/cl/155074
 2009-11-16 17:40:47 -08:00
Russ Cox
a338231526 gc: five bug fixes, one better error. 
* check for struct literal assignment to private fields.
* record, fix crash involving parallel map assignment.
* avoid infinite recursion in exportassignok.
* make floating point bounds check precise.
* avoid crash on invalid receiver.

* add context to error about implicit assignment.

Fixes #86.
Fixes #88.
Fixes #158.
Fixes #174.
Fixes #201.
Fixes #204.

R=ken2
https://golang.org/cl/154144
 2009-11-15 12:57:09 -08:00
Russ Cox
4b13d1b9b5 gc: do not try to constant-evaluate (interface{})("bar") 
Fixes #183.

R=ken
https://golang.org/cl/154139
 2009-11-14 14:14:27 -08:00
Russ Cox
593ccd1d44 yet another attempt to avoid conflicts with 
<stdio.h>, which we weren't even #including

R=r
https://golang.org/cl/154108
 2009-11-12 23:38:48 -08:00
Russ Cox
e5636d6e27 avoid seg fault when return type is unknown 
Fixes #80.

R=ken
https://golang.org/cl/154079
 2009-11-11 22:20:05 -08:00
Russ Cox
c3343ef62c fix BUFSIZ redeclaration warnings 
R=r
https://golang.org/cl/152085
 2009-11-11 16:33:23 -08:00
Russ Cox
e9ac56fb99 getc/ungetc in assemblers; BUFSIZ everywhere. 
Fixes #67.

R=r
https://golang.org/cl/154068
 2009-11-11 14:52:08 -08:00
Russ Cox
8c3d2f015b avoid clash with stdio's getc, ungetc. 
Fixes #50.

R=r
https://golang.org/cl/154064
 2009-11-11 13:08:35 -08:00
Russ Cox
7932950844 gc: increase maximum path size in getwd from 100 to 1000. 
Fixes #31.

To try the fix before the next release:
	hg pull -u

R=r1, r
https://golang.org/cl/154058
 2009-11-11 12:00:41 -08:00
Russ Cox
9f42ccb781 error rewording suggested by robert. 
update comment.

R=ken
http://go/go-review/1025031
 2009-11-09 15:25:18 -08:00
Russ Cox
18ccbc69f8 tweak documentation of commands 
so that first sentence is better for cmd page.

live at http://r45:3456/cmd/

R=gri, r
http://go/go-review/1024034
 2009-11-09 11:45:15 -08:00
Russ Cox
71983af4a1 bug212, bug213. 
R=ken
http://go/go-review/1026032
 2009-11-08 23:22:06 -08:00
Russ Cox
830813f019 assorted cleanup 
R=r, iant
CC=go-dev
http://go/go-review/1025024
 2009-11-08 21:08:27 -08:00
Ken Thompson
0eb2a79ff3 8g optimizer 
R=rsc
http://go/go-review/1025011
 2009-11-06 16:51:49 -08:00
Rob Pike
3fa379e797 document the gc go compilers. 
fix the usage message.

R=rsc
CC=go-dev
http://go/go-review/1016033
 2009-11-03 22:00:36 -08:00
Russ Cox
d00248980b do not emit USED for global x when compiling "_ = x;" 
R=ken@golang.org
CC=r
http://go/go-review/1018019
 2009-11-02 10:50:18 -08:00
Russ Cox
7732d80ceb misc cleanup 
R=r
http://go/go-review/1016017
 2009-11-01 09:25:55 -08:00
Kai Backman
dec1ec34bf all of pkg now compiles, fixes a few more tests 
go/test: passes 90% (313/345)

R=rsc
APPROVED=rsc
DELTA=90  (83 added, 3 deleted, 4 changed)
OCL=36011
CL=36023
 2009-10-23 11:00:59 -07:00
Russ Cox
60ff8cc86f address bug193 and add note to spec about it. 
R=ken
OCL=35920
CL=35920
 2009-10-20 08:27:14 -07:00
Russ Cox
02fd255a14 bug162, over and over 
R=ken
OCL=35919
CL=35919
 2009-10-20 08:03:43 -07:00
Russ Cox
a15648658f bug196 
R=ken
OCL=35905
CL=35905
 2009-10-19 21:10:29 -07:00
Russ Cox
62c4818ee0 bug136 
R=ken
OCL=35902
CL=35904
 2009-10-19 20:39:18 -07:00
Russ Cox
1be74762c1 bug169 
R=ken
OCL=35899
CL=35899
 2009-10-19 19:55:17 -07:00
Russ Cox
4c3a85d73a 6g bug fixes: 
* bug211
 * embedded interfaces with lowercase methods
 * var _ = f() at top level

R=ken
OCL=35898
CL=35898
 2009-10-19 19:27:40 -07:00
Russ Cox
8fffa1d698 bug190. 
also eliminate float80 dregs

R=ken
OCL=35894
CL=35896
 2009-10-19 18:47:37 -07:00
Russ Cox
22a5c78f44 rename sys functions to runtime, 
because they are in package runtime.

another step to enforcing package boundaries.

R=r
DELTA=732  (114 added, 93 deleted, 525 changed)
OCL=35811
CL=35824
 2009-10-15 23:10:49 -07:00
Russ Cox
a75e347a21 do not migrate x to the heap because of *&x. 
R=ken
OCL=35799
CL=35799
 2009-10-15 16:03:01 -07:00
Russ Cox
2372408189 sort errors by line number 
turn off testdclstack and "not used" errors
when there are syntax errors.

BUG=2181825
R=ken
OCL=35606
CL=35608
 2009-10-12 11:03:48 -07:00
Russ Cox
fd76b4f385 new builtin.c.boot from arm. 
node printing fixes.
silence incorrect redeclaration error.

R=ken
OCL=35602
CL=35602
 2009-10-12 10:12:37 -07:00
Kai Backman
1620023d03 fix float <-> int64 conversions 
R=rsc
APPROVED=rsc
DELTA=25  (25 added, 0 deleted, 0 changed)
OCL=35566
CL=35574
 2009-10-10 22:06:26 -07:00
Russ Cox
c736b6579f bug209 
R=ken
OCL=35546
CL=35546
 2009-10-09 16:01:32 -07:00
Russ Cox
680ee6af63 add & fix bug208, from ken. 
fix bug198.

R=ken
OCL=35504
CL=35507
 2009-10-08 23:03:34 -07:00
Russ Cox
55edf49a01 add & fix bug207: rewritten if condition 
was discarding initialization work.

R=ken
OCL=35454
CL=35457
 2009-10-07 22:19:42 -07:00
Russ Cox
d515063588 better handling of mistaken top-level variable 
references during the parsing of :=.  the base
problem is that when reading

	a,b,c,d

the parser makes those refer to existing variables,
which might create a few stub top-level ones
for undefined names, but then if a := is the next
token, we need to undo those stubs.

this was causing problems in multifile packages
in which one file used a := variable named rpc
and the other imported a package named rpc.

R=ken
OCL=35446
CL=35446
 2009-10-07 14:55:12 -07:00
Russ Cox
650bff6aa9 another round of gofmt applications 
R=gri
DELTA=900  (106 added, 31 deleted, 763 changed)
OCL=35384
CL=35396
 2009-10-06 14:55:39 -07:00
Russ Cox
c62b3265a7 apply gofmt to the LGTM-marked files from 34501 
that have not changed since I applied gofmt.

R=gri
DELTA=456  (77 added, 3 deleted, 376 changed)
OCL=35378
CL=35383
 2009-10-06 11:42:55 -07:00
Russ Cox
11d3805579 clean more 
R=r
DELTA=40  (9 added, 3 deleted, 28 changed)
OCL=35277
CL=35305
 2009-10-03 10:38:03 -07:00
Russ Cox
e7f9452da5 missing error checking related to ([...]int){...} 
R=ken
OCL=35132
CL=35132
 2009-09-29 21:23:34 -07:00
Russ Cox
6f1698774d undo 35108 (disallow parens around type in struct literal). 
allow parens around [...]int in struct literal.

R=ken
OCL=35112
CL=35130
 2009-09-29 21:21:14 -07:00
Russ Cox
9c3c140984 disallow parens around type in struct literal syntax, 
per discussion with gri.

R=ken
OCL=35108
CL=35108
 2009-09-29 16:05:44 -07:00
Russ Cox
7743ffead4 disallow interface { x, y() } 
R=ken
OCL=35042
CL=35044
 2009-09-28 14:05:34 -07:00
Russ Cox
ed6de5af4c comparisons have type bool 
R=ken
OCL=34995
CL=34997
 2009-09-24 17:55:22 -07:00
Russ Cox
a95ee61aea ideal bools and related fixes 
R=ken
OCL=34859
CL=34865
 2009-09-21 15:45:55 -07:00
Russ Cox
cb49a999d1 move static init code from 6g into gc. 
hook up to 8g and 5g too.

R=ken
OCL=34768
CL=34768
 2009-09-17 19:15:54 -07:00
Russ Cox
73e52ae971 check for unused imports 
R=ken
OCL=34732
CL=34756
 2009-09-17 16:42:10 -07:00
Russ Cox
aaaa1fc69b make 6g match spec: 
no semicolon allowd after package clause.
	semicolon allowed after import statement.
	no doubled semicolons allowed

R=ken
OCL=34674
CL=34674
 2009-09-15 17:29:08 -07:00
Russ Cox
1c9e4b358f declared and not used; this time for sure 
R=ken
OCL=34657
CL=34657
 2009-09-15 14:11:43 -07:00
Russ Cox
59914723df declared and not used error, but disabled. 
fix some bugs involving _.

R=ken
OCL=34621
CL=34621
 2009-09-14 18:38:30 -07:00
Ken Thompson
0631d65dc5 composit literal under 
init function context.
also moved composit literal
code from walk.c to sinit.c

R=rsc
OCL=34503
CL=34503
 2009-09-09 17:48:55 -07:00
Russ Cox
aa6e81dd71 a few more blank tests 
R=ken
OCL=34500
CL=34500
 2009-09-09 16:59:41 -07:00
Russ Cox
f4ee9f133c check type of string/map/array index expressions 
R=ken
OCL=34478
CL=34480
 2009-09-09 01:31:10 -07:00
Russ Cox
83bdb805a2 error message fixes 
x == nil
x.go:5: cannot use nil as bool

c := x.(type);
x.go:88: use of .(type) outside type switch

R=ken
OCL=34476
CL=34476
 2009-09-09 01:21:20 -07:00
Russ Cox
e780fa8669 defining package block names must override 
universe block names.

BUG=2097244
R=ken
OCL=34295
CL=34473
 2009-09-09 01:01:39 -07:00
Russ Cox
5d16d23362 update type switch to match spec. 
R=ken
OCL=34471
CL=34471
 2009-09-09 00:18:16 -07:00
Russ Cox
5438be4541 write-only variable _ 
R=ken
OCL=34465
CL=34470
 2009-09-08 23:16:19 -07:00
Ken Thompson
32aa5be6ef init context for composit literals 
R=rsc
OCL=34462
CL=34462
 2009-09-08 15:52:27 -07:00
Russ Cox
7a0f4cac03 pass Type* to makechan and makemap so that 
they can get the official alignment out of there
instead of guessing.

R=ken
OCL=34450
CL=34450
 2009-09-08 13:46:54 -07:00
Ken Thompson
0421cf072e maps in static initialization 
R=rsc
OCL=34434
CL=34434
 2009-09-07 17:36:47 -07:00
Ken Thompson
a24a26c107 more static init 
almost done

R=rsc
OCL=34422
CL=34422
 2009-09-06 15:03:51 -07:00
Ken Thompson
18f2e360a0 composit literals 
plateau - more to come

R=rsc
OCL=34413
CL=34413
 2009-09-05 20:32:24 -07:00
Russ Cox
107d404378 stop using filename for disambiguation within a package. 
R=ken
OCL=34339
CL=34341
 2009-09-03 15:23:21 -07:00
Russ Cox
a1391c2d13 fix one bug involving [...] constructors. 
added iant's bug202 (in main code)
and ken's bug203 (in init function).
bug187 remains at large.

R=ken
OCL=34293
CL=34293
 2009-09-02 23:26:13 -07:00
Russ Cox
ee2d5128d6 the last bug involving type hashes 
R=ken
OCL=34244
CL=34249
 2009-09-02 09:09:32 -07:00
Russ Cox
bebe06a784 type switch bug involving function parameter names 
R=ken
OCL=34232
CL=34232
 2009-09-01 18:04:49 -07:00
Russ Cox
27c4e7e74e catch package net import "net" for release 
R=ken
OCL=34205
CL=34207
 2009-09-01 14:12:09 -07:00
Ken Thompson
6fceadbba3 cleanup getting ready for static init 
R=rsc
OCL=34090
CL=34090
 2009-08-30 14:43:33 -07:00
Russ Cox
3443656bce clean up ideal handling; reject attempts 
to write type descriptors for ideal types

R=ken
OCL=33958
CL=33958
 2009-08-27 11:16:34 -07:00
Ken Thompson
2d73b7f7f0 bug slicing array - cap is huge 
R=rsc
OCL=33936
CL=33936
 2009-08-26 19:19:07 -07:00
Rob Pike
87f2208bda rename runtime internals to have modern names (array->slice etc) 
R=rsc
DELTA=444  (179 added, 177 deleted, 88 changed)
OCL=33847
CL=33849
 2009-08-25 15:54:25 -07:00
Russ Cox
d66d65da96 bug132 
R=ken
OCL=33792
CL=33803
 2009-08-24 17:06:10 -07:00
Russ Cox
89f69bb3be gc: handle iface == nil in back end 
R=ken
OCL=33778
CL=33781
 2009-08-24 15:20:37 -07:00
Russ Cox
14be733a25 bug197 
R=ken
OCL=33765
CL=33765
 2009-08-24 13:41:47 -07:00
Russ Cox
ef3e6810b8 bug189 
R=ken
OCL=33745
CL=33745
 2009-08-24 09:23:04 -07:00
Russ Cox
ac9d833c1e half of bug193 
R=ken
OCL=33730
CL=33730
 2009-08-23 18:09:44 -07:00
Russ Cox
59e2e54eab fix bug195 
R=ken
OCL=33700
CL=33700
 2009-08-21 18:07:11 -07:00
Russ Cox
e1c5d179d6 fix crash in bug194; add bug196 
R=ken
OCL=33694
CL=33697
 2009-08-21 17:54:07 -07:00
Russ Cox
7b29dbb866 symbol bugs. 
do not emit unreachable data symbols.

R=austin
DELTA=103  (71 added, 4 deleted, 28 changed)
OCL=33325
CL=33622
 2009-08-20 17:33:28 -07:00
Russ Cox
8a45917f3d len and cap on chans 
R=ken
OCL=33599
CL=33599
 2009-08-20 11:12:04 -07:00
Russ Cox
5600435fe4 produce diagnostic for 
import "fmt"
var fmt = 1

R=ken
OCL=33556
CL=33561
 2009-08-19 17:27:08 -07:00
Russ Cox
38df5ec58d try to do better line number reporting 
in the presence of yacc lookahead.
better but still not perfect

R=ken
OCL=33541
CL=33541
 2009-08-19 15:18:08 -07:00
Russ Cox
63aeaa2a03 fix import dot bug 
R=ken
OCL=33526
CL=33528
 2009-08-19 11:32:46 -07:00
Russ Cox
311c0b4807 6g/6l: add go type information to symbol table. 
archive size +70%
  binary size +30%

old

wreck.mtv=; ls -l /Users/rsc/bin/{godoc,gofmt}
-rwxr-xr-x  1 rsc  eng  1487922 Aug 13 13:21 /Users/rsc/bin/godoc
-rwxr-xr-x  1 rsc  eng   995995 Aug 13 13:21 /Users/rsc/bin/gofmt
wreck.mtv=; du -sh $GOROOT/pkg/
9.5M	/home/rsc/go/pkg/
wreck.mtv=;

new

wreck.mtv=; ls -l /Users/rsc/bin/{godoc,gofmt}
-rwxr-xr-x  1 rsc  eng  2014390 Aug 13 14:25 /Users/rsc/bin/godoc
-rwxr-xr-x  1 rsc  eng  1268705 Aug 13 14:25 /Users/rsc/bin/gofmt
wreck.mtv=; du -sh $GOROOT/pkg
 16M	/home/rsc/go/pkg
wreck.mtv=;

R=ken
OCL=33217
CL=33220
 2009-08-13 14:41:42 -07:00
Russ Cox
43f29e64a6 mechanism for putting go types into 6.out symbol table. 
no types yet.

R=ken
OCL=33142
CL=33146
 2009-08-12 18:16:24 -07:00
Russ Cox
d594639087 rm outfile if 6g exits with an error 
R=ken
OCL=33134
CL=33141
 2009-08-12 17:58:53 -07:00
Russ Cox
3e98a40793 bug188 - sort(x) 
R=ken
OCL=33123
CL=33123
 2009-08-12 15:58:31 -07:00
Russ Cox
a92610208e delete code for forward type declarations 
R=ken
OCL=33108
CL=33113
 2009-08-12 14:41:13 -07:00
Russ Cox
66bb399fdd whole-package compilation 
R=ken
OCL=33063
CL=33095
 2009-08-12 13:18:19 -07:00
Russ Cox
866b272336 bug186 - f(iota) 
R=ken
OCL=33051
CL=33051
 2009-08-11 17:05:22 -07:00
Russ Cox
7732f79daa fix indirect error 
x.go:3: invalid indirect of X (type int)

was
x.go:3: invalid indirect of nil

R=ken
OCL=33008
CL=33008
 2009-08-10 18:19:32 -07:00
Ken Thompson
34f76b5de5 1. integer division by a constant done. 
2. moved functions from 6g to gc
for portability to other families.
3. added rotate-carry instructions to
peek and reg.

R=rsc
OCL=32946
CL=32946
 2009-08-09 15:16:06 -07:00
Ken Thompson
07044ba6e5 plateau in divide by a constant 
still to do - overflow, mod

R=rsc
OCL=32927
CL=32927
 2009-08-08 15:26:09 -07:00
Russ Cox
6be0f50b97 bug159 
R=ken
OCL=32902
CL=32914
 2009-08-07 16:47:54 -07:00
Russ Cox
39b12e2dcb bug185 - return b,a from func() (a,b int) 
R=ken
OCL=32900
CL=32900
 2009-08-07 14:38:31 -07:00
Russ Cox
d1ee5d6e8f bug184 - assignment compatibility in unpacked multireturn 
R=ken
OCL=32890
CL=32894
 2009-08-07 14:00:18 -07:00
Russ Cox
aa7bd48389 bug183 - embedded vs non-embedded struct field in eqtype 
R=ken
OCL=32888
CL=32888
 2009-08-07 13:23:09 -07:00
Russ Cox
468f244416 bug182 - compiler crash 
R=ken
OCL=32887
CL=32887
 2009-08-07 13:17:28 -07:00
Russ Cox
6c2738eb43 bug181 - type T *struct { T } is an invalid embedded type 
R=ken
OCL=32886
CL=32886
 2009-08-07 13:14:01 -07:00
Russ Cox
99eca57d43 clean up a few error messages; 
disable func redeclaration mismatch test;
fix golden.out

R=ken
OCL=32883
CL=32883
 2009-08-07 13:00:20 -07:00
Russ Cox
b648716ee9 forward declarations not necessary. 
still to do:
	* initializer cycle detection
	* nicer error for type checking cycles

R=ken
OCL=32855
CL=32880
 2009-08-07 12:50:26 -07:00
Russ Cox
2609731736 delay range processing. old2new is gone 
R=ken
OCL=32780
CL=32780
 2009-08-05 02:33:30 -07:00
Russ Cox
54b403723b delay := processing 
R=ken
OCL=32772
CL=32772
 2009-08-05 00:42:44 -07:00
Russ Cox
a121410541 make Syms smaller. 
collapse a lot of duplication in dcl.c
switch to NodeList* from Dcl*

R=ken
OCL=32770
CL=32770
 2009-08-04 22:59:23 -07:00
Russ Cox
aa347c4a0d move various bits of code around 
and delete some dead code.
no actual changes here.

R=ken
OCL=32764
CL=32764
 2009-08-04 18:43:32 -07:00
Russ Cox
dbe004efe4 delayed evaluation of var blocks 
R=ken
OCL=32750
CL=32753
 2009-08-04 16:53:06 -07:00
Russ Cox
f7a867e1a6 move select into its own file. 
split into typecheck + walk

R=ken
OCL=32726
CL=32726
 2009-08-04 12:57:48 -07:00
Russ Cox
d8c19c80dc type checking of assignments, switch, if, for 
R=ken
OCL=32716
CL=32720
 2009-08-04 10:26:29 -07:00
Russ Cox
9dc22b6d6f more 6g reorg; checkpoint. 
typecheck.c is now responsible for all type checking
except for assignment and function argument "..."

R=ken
OCL=32661
CL=32667
 2009-08-03 11:58:52 -07:00
Russ Cox
9953c48dc4 missed in last checkin 
R=ken
OCL=32581
CL=32581
 2009-07-31 09:45:39 -07:00
Russ Cox
a2b8e38766 checkpoint; still plenty to clean up 
R=ken
OCL=32576
CL=32580
 2009-07-31 09:29:28 -07:00
Russ Cox
b754b4348f delete some code from walkexpr that is now 
handled by typecheck.

second switch is gone

move floating point minus into back end

R=ken
OCL=32558
CL=32558
 2009-07-30 18:56:44 -07:00
Russ Cox
ff3a73b407 typechecking checkpoint. 
started to move typechecking to another file.
can build entire tree still, but lots of work
is duplicated.  much to clean up.

R=ken
OCL=32536
CL=32543
 2009-07-30 16:53:08 -07:00
Russ Cox
2946069e3f break and continue fixes 
labeled break/continue was using
first loop with any label,
not first loop with the right label.

R=ken
OCL=32453
CL=32458
 2009-07-29 14:49:01 -07:00
Russ Cox
9271c6402e introduce typecheck pass before walkexpr. 
not complete but compiler still works.

R=ken
OCL=32424
CL=32426
 2009-07-29 12:47:51 -07:00
Russ Cox
056940d84b convert walkexpr to take Node**; drop indir 
R=ken
OCL=32421
CL=32421
 2009-07-29 12:00:34 -07:00
Russ Cox
4152b925f9 expression printer; %#N 
R=ken
OCL=32419
CL=32419
 2009-07-29 11:51:34 -07:00
Russ Cox
9346c6d901 make every func literal expression allocate, 
so that == on func means that the
functions originated in the same
execution of a func literal or definition.

before, there was an inconsistency:

	func() {x++} != func() {x++}

but

	func() {} == func() {}

this CL makes the second case != too,
just like

	make(map[int]int) != make(map[int]int)

R=r
DELTA=202  (71 added, 62 deleted, 69 changed)
OCL=32393
CL=32398
 2009-07-28 20:01:00 -07:00
Russ Cox
123ff2ebb8 bug177: anonymous struct fields in reflect 
(reported by iant)

R=r
DELTA=50  (32 added, 12 deleted, 6 changed)
OCL=32263
CL=32385
 2009-07-28 17:01:46 -07:00
Russ Cox
18840f5429 constant keys for array initializers 
R=ken
OCL=32261
CL=32261
 2009-07-27 17:58:25 -07:00
Russ Cox
b7dd312c93 bug170; fix test for bug175 
R=ken
OCL=32255
CL=32255
 2009-07-27 17:24:07 -07:00
Russ Cox
a587d9a73f multiple return in := bug 
R=ken
OCL=32253
CL=32253
 2009-07-27 16:59:10 -07:00
Russ Cox
059bbdd340 print(1<<x) 
R=ken
OCL=32252
CL=32252
 2009-07-27 16:17:09 -07:00
Russ Cox
811e59f2fa named string type bugs 
R=ken
OCL=32244
CL=32244
 2009-07-27 15:16:28 -07:00
Russ Cox
03b25a92a3 catch 
a := true;
	a |= a;
in the front end.

R=ken
OCL=32240
CL=32243
 2009-07-27 14:55:14 -07:00
Russ Cox
0b2683d1ee do not insert implicit "return;" in empty function body 
R=ken
OCL=32239
CL=32239
 2009-07-27 14:36:32 -07:00
Russ Cox
5a74c0b6ba do not use ONONAMEs for line number information, 
just like ONAME etc.

R=ken
OCL=31964
CL=31964
 2009-07-21 16:38:56 -07:00
Russ Cox
1d51978fed fix cut-and-paste bugs in error messages 
R=ken
OCL=31890
CL=31890
 2009-07-20 17:41:18 -07:00
Russ Cox
6e1ad041f7 avoid strncat in formatters. 
the n argument to strncat is the maximum
number of bytes to read from the src,
not the total size of the destination.

R=ken
OCL=31871
CL=31875
 2009-07-20 14:16:25 -07:00
Russ Cox
f664d0e904 explain selectsend problem 
R=ken
OCL=31865
CL=31867
 2009-07-20 13:29:56 -07:00
Russ Cox
35e5906f91 another baby step. 
excluding import data,
no yacc node has type Type* anymore.

0 reduce/reduce conflicts.

R=ken
OCL=31793
CL=31795
 2009-07-17 14:42:14 -07:00
Russ Cox
db508ccbff baby step: const decls can refer to future 
consts in the same factored block

	const (
		X = Y;
		Y = 2;
	)

R=ken
OCL=31782
CL=31782
 2009-07-17 13:38:16 -07:00
Russ Cox
e52e9ca82e another step toward eliminating forward declarations. 
introduce NodeList* type in compiler to replace OLIST.
this clarifies where lists can and cannot occur.
list append and concatenation are now cheap.
the _r rules are gone from yacc.
rev and unrev are gone.
no more lists of lists.

the representation of assignments is a bit clunkier.
split into OAS (1=1) and OAS2 (2 or more on one side).

delete dead chanrecv3 code.

delay construction of func types.

R=ken
OCL=31745
CL=31762
 2009-07-17 01:00:44 -07:00
Russ Cox
be16caf872 step toward no function prototypes. 
delay evaluation of most types (all but func)
from parse time to type check time.

R=ken
OCL=31585
CL=31585
 2009-07-13 23:38:39 -07:00
Russ Cox
e11447f7da bug148. 
R=ken
OCL=31582
CL=31582
 2009-07-13 23:29:44 -07:00
Russ Cox
0dadc4fe4f cleanup in preparation for new scoping. 
walkstate -> walkstmt
walktype -> walkexpr; stmts moved to walkstmt

walktype and friends have a final Node **init
argument that can have side effects appended,
making it more explicit when they do and do not happen.
this replaces the old global addtop and addtotop.

delete switch map and interface conversion cases
(dropped from the language months ago).

R=ken
OCL=31465
CL=31468
 2009-07-10 16:29:26 -07:00
Ken Thompson
ed124a971e segfault 
R=rsc
OCL=31467
CL=31467
 2009-07-10 16:12:21 -07:00
Ken Thompson
5ff7d84892 segment fault 
R=rsc
OCL=31396
CL=31396
 2009-07-09 11:41:06 -07:00
Ken Thompson
a68b1da3cc another nil reference 
R=rsc
OCL=31373
CL=31373
 2009-07-08 17:58:15 -07:00
Russ Cox
903d28bd1e ANY is already checked separately, 
so remove code from go.y.

show original types in badtype; don't remove pointers.
not sure why this was here but it confuses things
if the bad part involves two named pointer types
with different names but the same pointed-at type.

R=ken
OCL=31369
CL=31369
 2009-07-08 16:39:19 -07:00
Russ Cox
42af80348c method expansion bugs 
R=ken
OCL=31310
CL=31310
 2009-07-07 16:05:55 -07:00
Russ Cox
a1b64821f8 bug167 
R=ken
OCL=31295
CL=31295
 2009-07-07 11:48:22 -07:00
Russ Cox
541e638f9b 6g, 8g: generate data structures for new reflect interface (CL 31107) 
R=ken
OCL=31122
CL=31278
 2009-07-07 11:03:04 -07:00
Russ Cox
c7513eac88 runtime: use new reflect data structures (CL 31107) 
in place of sigi, sigt.

R=ken
OCL=31118
CL=31277
 2009-07-07 11:02:54 -07:00
Russ Cox
0417aafe75 insert ODCL in type switch case. 
needed for heap allocation if variable escapes.

package main
func main(){
	var i interface{} = 42;
	switch v := i.(type) {
	case int:
		println(&v, v);
	}
}

R=ken
OCL=31245
CL=31245
 2009-07-06 23:42:57 -07:00
Russ Cox
0aa1b1508a shift typechecking bugs 
x << "a"
	1 << int(2)

R=ken
OCL=31244
CL=31244
 2009-07-06 23:33:17 -07:00
Russ Cox
2acbc37166 various 6g cleanup: 
* give genwrapper and genembedtramp the same signature.
* move duint8, duint16, duint32, duint64, duintptr into gc.
* tidy genwrapper.
* bug involving struct field symbols in signature list.
  (hash-order dependent so hard to trigger)
* new Type print format %#-T like %#T but omits
  names on function arguments.

R=ken
OCL=31237
CL=31237
 2009-07-06 22:31:20 -07:00
Russ Cox
74b546aefd statements after panicln are unreachable, just like after panic. 
missing break after error.

dot symbol bug fix: leave sym alone
(was incorrect for inserted cross-package dots).

R=ken
OCL=31234
CL=31236
 2009-07-06 22:25:54 -07:00
Russ Cox
ef4ddd63f8 another piece for cross-file forward struct declarations. 
R=ken
OCL=31233
CL=31233
 2009-07-06 21:39:18 -07:00
Russ Cox
a14b28a24d fix bug involving typed nil constants: 
interface = (*int)(nil) is not the same as
interface = nil.

package main
func main() {
	var x interface{} = (*int)(nil);
	println(x.(*int));
}

R=ken
OCL=31232
CL=31232
 2009-07-06 21:37:29 -07:00
Russ Cox
7af032b87b fix forward struct declarations 
R=ken
OCL=31230
CL=31230
 2009-07-06 18:05:11 -07:00
Russ Cox
d436a70193 allow conversion to interface type 
when implicit assignment would have been okay.

R=ken
OCL=31225
CL=31227
 2009-07-06 17:20:48 -07:00
Russ Cox
53ebd163c6 more precise error message 
package main

func main() {
       var x interface {} = 42;
       switch x := x.(type) {
       case int:
       case foo:
       }
}

before:
x.go:7: non-type case in type switch
x.go:7: inappropriate case for a type switch

now:
x.go:7: foo: undefined

R=ken
OCL=31221
CL=31221
 2009-07-06 16:29:28 -07:00
Russ Cox
769919c4ee better error message + line numbers 
package main
func main() {
       var x interface{};
       switch x {
       case 41:
       case "b":
       }
}

before:
x.go:5: fatal error: exprcmp

now:
x.go:5: illegal types for operand: EQ
	interface { }
	int
x.go:6: illegal types for operand: EQ
	interface { }
	string

R=ken
OCL=31217
CL=31219
 2009-07-06 16:05:48 -07:00
Ken Thompson
6bb3c48d3d another seg fault 
R=r
OCL=31156
CL=31156
 2009-07-04 13:59:08 -07:00
Russ Cox
db312fa8de bug163 
R=ken
OCL=31149
CL=31149
 2009-07-03 13:34:05 -07:00
Russ Cox
75fe1303c1 maps have == so maps are okay as map keys. 
alignment issue is fixed.

R=ken
OCL=31124
CL=31144
 2009-07-03 09:44:59 -07:00
Russ Cox
20cfa4a568 change alignment rules: roll receiver into 
input parameters, move output parameters
into their own struct.

R=ken
OCL=30954
CL=30966
 2009-06-30 20:02:07 -07:00
Russ Cox
5d5904bb4d bug163 bug164 bug166 
R=ken
OCL=30889
CL=30889
 2009-06-29 17:46:22 -07:00
Russ Cox
9435dc2bdf allow forward declaration of struct in another file 
(in the same package).

allow forward method declaration to be satisfied
by implementation in another file (in the same package).
all methods must be declared in the same file
as the receiver type.

R=ken
OCL=30864
CL=30869
 2009-06-29 15:13:37 -07:00
Russ Cox
480f51243c bug165 
R=ken
OCL=30783
CL=30783
 2009-06-25 21:02:39 -07:00
Russ Cox
70e232e668 separate local path lookup from standard package directories 
R=ken
OCL=30760
CL=30779
 2009-06-25 20:15:56 -07:00
Russ Cox
5851a1b5ad allow 
package main
type t interface
type t interface{ m(map[t]bool) }
type m map[t] int

making it work without the forward declaration will require a second pass.

R=ken
OCL=30773
CL=30773
 2009-06-25 18:19:05 -07:00
Russ Cox
1ea28570ec the any fix was too aggressive; allow any in any import. 
R=ken
OCL=30768
CL=30768
 2009-06-25 16:57:56 -07:00
Russ Cox
fa6df47986 package main 
const foo = []int{1,2}

x.go:3: expression must be a constant

instead of

x.go:3: fatal error: gettype: addtop

R=ken
OCL=30767
CL=30767
 2009-06-25 16:42:08 -07:00
Russ Cox
70a273476b better error; clean up lineno in a few places 
wreck.mtv=; cat x.go
package main
var x = string.Split()
wreck.mtv=; 6g x.go
x.go:2: type string used as expression
x.go:2: undefined DOT Split on string
x.go:3: illegal types for operand: AS
	undefined
wreck.mtv=;

BUG=1938751
R=ken
OCL=30766
CL=30766
 2009-06-25 16:32:33 -07:00
Russ Cox
4bce6d455f package main 
func foo(y) { }

was:
x.go:2: NONAME-y G0 u(1) a(1) l(77) x(-1000000000) is not a type

now:
x.go:2: y is not a type

R=ken
OCL=30764
CL=30764
 2009-06-25 16:25:06 -07:00
Russ Cox
30f2799f88 disable "any" except during canned imports. 
new flag -A enables it during mkbuiltin.
avoids mysterious errors in programs
that refer to any accidentally.

R=ken
OCL=30763
CL=30763
 2009-06-25 16:22:46 -07:00
Russ Cox
111ae83bb7 6g: update for spec change CL 30586 
R=ken
OCL=30593
CL=30756
 2009-06-25 14:44:45 -07:00
Ken Thompson
466dd8da4e 6g crash re mail from gri jun 18. 
R=r
OCL=30719
CL=30719
 2009-06-24 17:50:25 -07:00
Russ Cox
0aef57e37f fix a 6g crash after type errors. 
do not bother warning about marks left
on stack after syntax errors.

leave OCONV nodes in tree to avoid type errors
arising from multiple walks.

R=ken
OCL=30639
CL=30662
 2009-06-23 15:30:59 -07:00
Russ Cox
7f3eb2738f implement new spec language regarding conversions 
R=ken
OCL=30519
CL=30534
 2009-06-19 14:00:53 -07:00
Ken Thompson
eba82f4391 better diagnostics for eof in a string. 
this assumes that embedded newlines are
legal in back-quote strings.

R=r
OCL=30502
CL=30502
 2009-06-18 15:49:41 -07:00
Russ Cox
30a28aec25 b/1909731 
package main
func f(a *c.b) {}
func main() {}

BUG=1909731
R=ken
OCL=30322
CL=30322
 2009-06-15 20:15:59 -07:00
Russ Cox
8abcdee175 implement optional semicolons with help from the lexer, 
instead of having to double the type and statement grammars.

R=ken
OCL=29987
CL=29998
 2009-06-06 19:27:48 -07:00
Russ Cox
8f4af6d205 gc: grammar cleanup: 
* no longer distinguishes const, var, type, package names.
  * all the predefined names are not tokens anymore.

R=ken
OCL=29326
CL=29985
 2009-06-06 12:46:38 -07:00
Russ Cox
01fe6a9c58 more build refinements: 
* use new Make.$GOARCH files in gobuild.
 * rename 6ar to arch-generic gopack.
 * place objects in $GOROOT/pkg/$GOOS_$GOARCH
   (makes cross-compiling easier, and no one
   ever types these paths by hand anyway).

R=r
DELTA=29  (6 added, 8 deleted, 15 changed)
OCL=29923
CL=29967
 2009-06-05 22:18:32 -07:00
Russ Cox
6609d2f88d restructure makefiles, scripts to factor out O= logic. 
remove a few hardcoded paths elsewhere too.

R=r,gri
DELTA=123  (44 added, 15 deleted, 64 changed)
OCL=29914
CL=29945
 2009-06-05 10:59:55 -07:00
Russ Cox
2f2577a4f6 bug161, fixed 
R=ken
OCL=29907
CL=29907
 2009-06-04 16:18:13 -07:00
Russ Cox
9a9ffb2b0e more 8g progress. 
likely to go back to registers for most temporaries.

most tests in lib pass.  these fail:

	datafmt
	fmt
	go/scanner
	log
	reflect
	strconv
	template

R=ken
OCL=29896
CL=29898
 2009-06-04 15:24:01 -07:00
Russ Cox
f51ca384eb fix handling of floating point zero constant 0p+0 
R=r
DELTA=25  (25 added, 0 deleted, 0 changed)
OCL=29875
CL=29875
 2009-06-04 11:06:37 -07:00
Russ Cox
ea7f5505d1 zero struct in T{} 
R=ken
OCL=29849
CL=29849
 2009-06-03 16:10:13 -07:00
Russ Cox
f1f970ad21 minor cleanup, 64-bit /= and %= on 32-bit 
R=ken
OCL=29806
CL=29808
 2009-06-02 23:21:58 -07:00
Ken Thompson
c17ce9f94f prevent multiple similar errors 
in complex literals. side effect is
fix of error in initializerr.go

R=r
OCL=29667
CL=29667
 2009-05-31 13:02:24 -07:00
Russ Cox
d6a9817051 bug157 
R=ken
OCL=29651
CL=29653
 2009-05-30 21:18:15 -07:00
Ken Thompson
be63b6dc44 bug 158 
R=r
OCL=29646
CL=29646
 2009-05-30 17:06:51 -07:00
Ken Thompson
fbcbcdbb1d bug 156 
R=r
OCL=29623
CL=29623
 2009-05-29 15:34:47 -07:00
Ken Thompson
3b37b02834 bug 149 
R=r
OCL=29612
CL=29612
 2009-05-29 13:44:30 -07:00
Russ Cox
0a6d83567e print uint64 as uint64. 
R=ken
OCL=29568
CL=29570
 2009-05-28 22:24:03 -07:00
Ken Thompson
e2613711aa detect recursive initialization 
R=r
OCL=29544
CL=29544
 2009-05-28 16:00:55 -07:00
Russ Cox
3aa006b8cd better 64-bit handling in 8g. 
fewer moves, fewer stupid LEALs.
powser1 runs (with evaln commented out).
beginnings of floating point.

R=ken
OCL=29540
CL=29543
 2009-05-28 15:48:47 -07:00
Russ Cox
e81d97ea84 clean up gmove: 
* conversions all in one place.
	* no separate load, store phases;
	  direct memory addressing when possible
	  (this is the x86 after all!).
	  avoids extra registers, extra MOVQs.
	* fixes int32 -> uint64 bug
	  (was zero-extending)

R=ken
OCL=29482
CL=29484
 2009-05-27 23:55:14 -07:00
Ken Thompson
b3f303ec9a bug 153 
R=r
OCL=29479
CL=29479
 2009-05-27 18:37:02 -07:00