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688 Commits

Author SHA1 Message Date
Ken Thompson
b5e7562191 supply default indirection to 
map indexing - bug 143

R=r
OCL=27695
CL=27695
 2009-04-21 17:00:08 -07:00
Ken Thompson
34b6f642de mixed old/new declaration 
exact spec:
a) must be a multi-assignment w :=
b) a proper subset of the lhs
   can be declared in same block
   with the same type with no
   "redeclaration" error

R=r
OCL=27610
CL=27610
 2009-04-18 13:58:04 -07:00
Rob Pike
bfd5ede78d add -P pkgdir option to 6l to have it look first in pkgdir for a package. 
this allows gotest to find the locally built package when doing
	make
	gotest
without this option, one would have to say
	make install
	gotest
which kinda defeats the purpose

based on discussions with rsc.

R=ken,rsc
DELTA=12  (10 added, 1 deleted, 1 changed)
OCL=27606
CL=27606
 2009-04-17 19:39:45 -07:00
Rob Pike
aaf63f8d06 Step 1 of the Big Error Shift: make os.Error an interface and replace *os.Errors with os.Errors. 
lib/template updated to use new setup; its clients also updated.

Step 2 will make os's error support internally much cleaner.

R=rsc
OCL=27586
CL=27586
 2009-04-17 00:08:24 -07:00
Russ Cox
3ea8d854a3 make string(array) take []byte only (and thus *[10]byte but not [10]byte) 
R=ken
OCL=27581
CL=27585
 2009-04-16 23:07:30 -07:00
Russ Cox
0f153ec6b4 build packages in obj/ subdirectory that mimics $GOROOT/pkg. 
for example, if building in src/lib/container,
objects go in obj/container/, so that 6g -Iobj
will find "container/vector".

install packages in hierarchy in $GOROOT.

this change only updates gobuild.
another change will have to update all
the sources to refer to "container/vector" etc
and regenerate all the Makefiles.

there are some pretty lame functions here
(e.g., Mkdir, Remove, the Getenv("PWD"))
but i will implement better ones in another CL.

R=r
DELTA=117  (99 added, 2 deleted, 16 changed)
OCL=27550
CL=27574
 2009-04-16 20:52:13 -07:00
Russ Cox
7847056dfb rewrite gobuild in go. 
R=r
DELTA=1305  (704 added, 590 deleted, 11 changed)
OCL=27546
CL=27548
 2009-04-16 00:18:11 -07:00
Russ Cox
1cb3b7d124 panicln: emit just one newline 
R=ken
OCL=27537
CL=27545
 2009-04-15 22:38:09 -07:00
Rob Pike
57bff962d9 fix gotest by fixing nm -s to print in file order by storing a sequence number 
as the .6 file is read.   now tests will be run in file order.

R=rsc
DELTA=9  (6 added, 1 deleted, 2 changed)
OCL=27542
CL=27544
 2009-04-15 21:57:55 -07:00
Russ Cox
65d397f747 compiler implementation of array slice change 
R=ken
OCL=27533
CL=27533
 2009-04-15 20:27:22 -07:00
Russ Cox
935953a9f8 tweak interface warning heuristic. 
some day i will fix this for real.

R=ken
OCL=27468
CL=27468
 2009-04-14 19:57:27 -07:00
Russ Cox
a62467af93 fix stringrange test 
R=ken
OCL=27353
CL=27353
 2009-04-13 05:31:44 -07:00
Ken Thompson
a91a8042b4 range over strings 
R=r
OCL=27332
CL=27332
 2009-04-10 19:49:31 -07:00
Kai Backman
35a775d045 Fixed optab to support SWI with long constant (the mode used 
for linux system calls).

R=rsc
APPROVED=rsc
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=27325
CL=27328
 2009-04-10 16:44:01 -07:00
Kai Backman
4e1896a1b5 Adding ARM elf support to the 5l linker. 
R=rsc
APPROVED=rsc
DELTA=312  (312 added, 0 deleted, 0 changed)
OCL=27133
CL=27326
 2009-04-10 16:35:36 -07:00
Ken Thompson
cb15bbe748 bug in stack size used in 
extending segmented stack

R=r
OCL=27319
CL=27319
 2009-04-10 15:23:19 -07:00
Ken Thompson
f9854978e2 bug 142 
order of evaluation && and ||

R=r
OCL=27294
CL=27294
 2009-04-09 19:11:24 -07:00
Ken Thompson
3657061550 change representation of strings 
R=r
OCL=27293
CL=27293
 2009-04-09 18:16:21 -07:00
Russ Cox
f95da9a639 yet another attempt at auto-linking 
store only the original import path string (+ .a)
if 6g resolves it to an archive file.
let 6l re-resolve the .a at link time.

this lets libraries build against an archive
in the current directory but get used
against an installed archive.

R=r
OCL=27244
CL=27244
 2009-04-08 22:45:33 -07:00
Russ Cox
3067781ab9 func f() (int, int); 
x := f();

used to give
	fatal error: dowidth fn struct struct { int; int }

now gives
	assignment count mismatch: 1 = 2

R=ken
OCL=27198
CL=27201
 2009-04-07 22:20:37 -07:00
Russ Cox
d50c70d261 set line number for errors produced during walkstate. 
R=ken
OCL=27145
CL=27145
 2009-04-06 22:17:46 -07:00
Russ Cox
907cb4f1e6 fix both of anton's bugs: 
* make([100]int) was being compiled to
	make([]int), kind of.
* []this = [100]that was working for any this, that.

turned up a typo in pipe_test.go

R=ken
OCL=27081
CL=27081
 2009-04-03 23:20:51 -07:00
Russ Cox
39436f2a74 special case check for this situation 
; cat >http.go
	package main
	import "http"  // intended the library, not this file
	^D
	; 6g http.go
	; 6g http.go
	http.go:4: export/package mismatch: init
	;

new error:

	http.6:7 http.go:3: cannot import package main

R=ken
OCL=27053
CL=27053
 2009-04-02 21:46:19 -07:00
Russ Cox
07687705a4 type n t; 
was copying a bit too much about t into n,
like whether the signature was queued to be printed.
(bug reported by anton)

was also editing t, meaning you could do
	type T int;
	func (p int) Meth() { }

both fixed.

R=ken
OCL=27052
CL=27052
 2009-04-02 21:38:11 -07:00
Russ Cox
416b27548e use _f007·filename for func literals. 
this avoids problems people have run into with
multiple closures in the same package.

when preparing filename, only cut off .go, not .anything.
this fixes a bug tgs ran into with foo.pb.go and foo.go
in the same package.

also turn bad identifier chars from filename into
underscores: a-b.pb.go => a_b_pb

R=ken
OCL=27050
CL=27050
 2009-04-02 18:32:57 -07:00
Ken Thompson
9efd6b8a3d compiler falut for forgetting 
the assignment on a type switch

R=r
OCL=27048
CL=27048
 2009-04-02 18:06:43 -07:00
Russ Cox
58f5f4f18d use separate lex buf for better errors: 
package main
func main() { func(){}() + + }

x.go:2: syntax error near _f001

becomes

x.go:2: syntax error near func

R=ken
OCL=27047
CL=27047
 2009-04-02 17:59:09 -07:00
Russ Cox
8d8225d529 turn gc of unused data/code back on in loaders. 
turned it off while debugging 8 runtime problem,
checked in the change accidentally.

R=r
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=27040
CL=27046
 2009-04-02 17:56:23 -07:00
Russ Cox
6b07021a2b implement some more 8g 
package main
	func main() {
		println("hello,", 123);
	}

R=ken
OCL=27043
CL=27043
 2009-04-02 16:48:06 -07:00
Ken Thompson
2450c590e9 typeswitch - expression evaluated 
twice instead of once.

R=r
OCL=27015
CL=27015
 2009-04-01 21:28:59 -07:00
Russ Cox
95100344d3 fix runtime stack overflow bug that gri ran into: 
160 - 75 was just barely not enough for deferproc + morestack.

added enum names and bumped to 256 - 128.
added explanation.

changed a few mal() (garbage-collected) to
malloc()/free() (manually collected).

R=ken
OCL=26981
CL=26981
 2009-04-01 00:26:00 -07:00
David Symonds
c025cf64dc Bail out of gotest immediately if compiling fails. 
R=rsc
APPROVED=rsc
DELTA=4  (2 added, 2 deleted, 0 changed)
OCL=26978
CL=26978
 2009-03-31 22:35:55 -07:00
Russ Cox
42546f4812 multiple bugs in bitfield handling 
R=r
DELTA=6  (3 added, 0 deleted, 3 changed)
OCL=26944
CL=26967
 2009-03-31 15:44:43 -07:00
Russ Cox
dc5b4678e2 minimal 8g. can compile 
package main
	func main() {
	}

and not much else.

R=ken
OCL=26943
CL=26943
 2009-03-31 00:22:59 -07:00
Russ Cox
b87e3e8b7f * move go-specific loader code 
into gc directory, where it gets included as ../gc/ldbody
this is similar to the assemblers including ../cc/lexbody
and ../cc/macbody.

* hook go-specific loader code into 8l.

* make current 8.out.h and 6.out.h backward compatible
with plan 9's versions.  i had added some constants in
the middle of enums and have now moved them to the end.
this keeps us from invalidating old .8 and .6 files.
not sure how much it really matters, but easy to do.

R=r
DELTA=1314  (667 added, 623 deleted, 24 changed)
OCL=26938
CL=26941
 2009-03-31 00:20:07 -07:00
Russ Cox
b199035ba8 move tiny gsubr functions together at the top of the file. 
delete unused mkenam file

R=ken
OCL=26940
CL=26940
 2009-03-31 00:19:38 -07:00
Russ Cox
aacdc25399 fix http://b/1748082 
package main
var f = func(a, b int) int { return a + b }

R=ken
OCL=26935
CL=26935
 2009-03-30 22:26:00 -07:00
Russ Cox
441da9af0d fix build (moved decl to go.h earlier 
and changed vlong to int64).

R=ken
OCL=26934
CL=26934
 2009-03-30 21:39:10 -07:00
Russ Cox
5e792b6c09 move portable object routines (especially 
signature generation) into gc.

R=ken
OCL=26933
CL=26933
 2009-03-30 21:31:29 -07:00
Russ Cox
941ed00b1d closure bug: carry along outnamed flag. 
R=ken
OCL=26930
CL=26930
 2009-03-30 19:21:36 -07:00
Russ Cox
bac922c6e1 move portable code generation (basic statements) to gc. 
R=ken
OCL=26929
CL=26929
 2009-03-30 19:15:07 -07:00
Russ Cox
d30285a6f5 move some portable pieces of 6g/gsubr.c into gc/subr.c 
int	brcom(int);
	int	brrev(int);
	void	setmaxarg(Type*);
	Sig*	lsort(Sig*, int(*)(Sig*, Sig*));
	int	dotoffset(Node*, int*, Node**);
	void	stringpool(Node*);
	void	tempname(Node*, Type*);

R=ken
OCL=26922
CL=26922
 2009-03-30 17:52:21 -07:00
Russ Cox
e5ba266e93 delete dregs: inarggen, genpanic, regret 
R=ken
OCL=26916
CL=26918
 2009-03-30 17:15:54 -07:00
Russ Cox
8e54729b5a move alignment calculations into gc 
R=ken
OCL=26914
CL=26914
 2009-03-30 17:09:28 -07:00
Russ Cox
e224b1ebdb don't crash on 
unsafe.Alignof(struct{x float}{0}.x)

R=ken
OCL=26911
CL=26913
 2009-03-30 17:07:30 -07:00
Russ Cox
531f242f5d move bits.c from 6g to gc 
R=ken
OCL=26909
CL=26909
 2009-03-30 16:13:11 -07:00
Russ Cox
47fbb7639a new tool godefs. 
uses gcc to determine system header layouts and
emits simple C or Go.  see comment in main.c.

R=r
DELTA=1069  (1067 added, 0 deleted, 2 changed)
OCL=26682
CL=26880
 2009-03-30 00:21:25 -07:00
Russ Cox
a2cbc2998d don't write cmp's output to the c file. 
cope better with p4 not found.

R=r
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=26877
CL=26879
 2009-03-30 00:12:56 -07:00
Kai Backman
99cc2fee81 This is really two changes in one but given interdependencies 
and expected review latency I needed to combine the CLs.

1. Made the 5* toolpath build using the go build
   system. Hooked the subdirectories to clean.bash but added a
   separate make5.bash for now. Minor massage to make the code
   more similar to the current structure of 6c/6a/6l.

2. Change all references from long to int32 in line with
   similar change for the other toolchains.

The end result is that 5c, 5a and 5l can now be compiled and
the executables start up properly. Haven't thrown any input at
them yet.

R=rsc
APPROVED=rsc
DELTA=1052  (392 added, 328 deleted, 332 changed)
OCL=26757
CL=26761
 2009-03-25 16:31:38 -07:00
Russ Cox
58f7fc331f make 8a, 8c build again. 
add 8a 8c 8l to the build to keep us honest.

R=r
DELTA=33  (28 added, 0 deleted, 5 changed)
OCL=26694
CL=26711
 2009-03-24 18:04:19 -07:00
Russ Cox
34a5537edb drop rt0 object from 8l (already dropped from 6l). 
remove debugging print.

R=r
DELTA=8  (0 added, 8 deleted, 0 changed)
OCL=26695
CL=26710
 2009-03-24 18:02:24 -07:00
Ken Thompson
b8be809c10 ^ type(const) now inverts "enough" bits 
^ signed(const) becomes illegal
^ unsigned(const) becomes legal

R=r
OCL=26697
CL=26697
 2009-03-24 16:40:38 -07:00
Russ Cox
878822f355 move darwin specific code into runtime/darwin/ 
move darwin-amd64 specific code into runtime/darwin/amd64/
repeat for linux.

move rt0 into runtime.a instead of keeping a separate .6 file.
6l seems to have no problem with that.

TBR=r
OCL=26680
CL=26680
 2009-03-24 13:06:51 -07:00
Russ Cox
5a68303a15 throw away most of the compat.h compatibility layer 
in favor of the lib9 compatibility layer.  no need for two.

now that mycreate is gone, .6 files are 0644 not 0755.

TBR=r
OCL=26679
CL=26679
 2009-03-24 12:12:57 -07:00
Ken Thompson
79fa5b65cb rewrote switch 
fixed bug 141

R=r
OCL=26627
CL=26627
 2009-03-22 20:54:21 -07:00
Russ Cox
2bd101c4b1 update 8a, 8c, 8l to use new object format. 
add "extern register" support to 8c.
extern register means allocate in the FS-relative segment.

make 8l generate segmented stack checks.

R=ken
OCL=26600
CL=26606
 2009-03-20 16:40:00 -07:00
Russ Cox
7d443bb67a make 8l generate Darwin Mach-O and Linux ELF binaries 
R=ken
OCL=26584
CL=26589
 2009-03-20 14:22:59 -07:00
Russ Cox
997b6f9d89 don't need two names for the same function (vputl and llputl). 
also use thechar, to make copy/paste easier.

R=ken
OCL=26583
CL=26588
 2009-03-20 14:22:46 -07:00
Russ Cox
0932b1f9b8 move pragtextflag into lexbody 
R=ken
OCL=26581
CL=26587
 2009-03-20 14:22:37 -07:00
Russ Cox
54aa835b44 range over channels. 
also fix multiple-evaluation bug in range over arrays.

R=ken
OCL=26576
CL=26576
 2009-03-20 11:32:58 -07:00
Russ Cox
f7772627ad fix b/1722502 
BUG=1722502
R=ken
OCL=26526
CL=26526
 2009-03-18 19:20:54 -07:00
Ken Thompson
1cdcfda140 remove assignment cases from switch 
R=r
OCL=26480
CL=26480
 2009-03-18 12:13:42 -07:00
Ken Thompson
1e0c17e294 switch on false error 
R=r
OCL=26434
CL=26434
 2009-03-17 19:10:32 -07:00
Ken Thompson
0f469a99a3 binary search on type switches. 
new feature 'case nil:' in type switch
will match iff the interface is nil.

R=r
OCL=26404
CL=26404
 2009-03-17 13:58:38 -07:00
Ken Thompson
5136a9e1f7 change format of Sigt and Sigi 
to allow room for type hash
needed for log-time type switch.

R=r
OCL=26354
CL=26354
 2009-03-16 15:27:08 -07:00
Kai Backman
db3a21d7c6 5a 5c 5l from inferno distribution 
R=rsc
APPROVED=rsc
DELTA=19042  (19042 added, 0 deleted, 0 changed)
OCL=26268
CL=26270
 2009-03-13 15:03:07 -07:00
Russ Cox
5fbadf0bc3 warn -> yyerror in mparith. 
close two more bugs.

R=ken
OCL=26226
CL=26226
 2009-03-12 19:57:30 -07:00
Russ Cox
8f194bf5ff make 6g constants behave as ken proposes. (i hope.) 
various bug fixes and tests involving constants.

test/const1.go is the major new test case.

R=ken
OCL=26216
CL=26224
 2009-03-12 19:04:38 -07:00
Ken Thompson
6eb54cb05b chan flags close/closed installed 
runtime not finished.

R=r
OCL=26217
CL=26217
 2009-03-12 17:55:11 -07:00
Ken Thompson
bb02e481d2 added bitclear operators &^ and &^= 
R=r
OCL=26152
CL=26152
 2009-03-11 19:59:35 -07:00
Ken Thompson
767845b6fa bug 125 
R=r
OCL=26146
CL=26146
 2009-03-11 17:37:04 -07:00
Ken Thompson
48f6b516e2 bug 137 
R=r
OCL=26142
CL=26142
 2009-03-11 16:25:45 -07:00
Russ Cox
4eb7ceba58 complain when trying to put T into an interface 
if T has pointer methods.  this is just a heuristic
but it catches the problem robert ran into and
lets me put the larger interface issues aside for
now.  found one bug in pretty.

R=ken
OCL=26141
CL=26141
 2009-03-11 16:06:17 -07:00
Ian Lance Taylor
062d6998ab Add support for a -I option. -I DIR searches for packages in 
DIR.

R=ken,rsc
DELTA=49  (41 added, 2 deleted, 6 changed)
OCL=26057
CL=26092
 2009-03-10 20:03:31 -07:00
Ken Thompson
d27e9f528d bug086 
R=r
OCL=26090
CL=26090
 2009-03-10 19:16:31 -07:00
Ken Thompson
0c4f4587d7 bug with interaction of variables 
declared in cases and heap allocation

R=r
OCL=26064
CL=26064
 2009-03-10 16:49:34 -07:00
Ken Thompson
820f42d977 binary search for constant case statements. 
R=r
OCL=25890
CL=25890
 2009-03-07 17:33:42 -08:00
Ken Thompson
a4a10ed856 1. type switches 
2. fixed fault on bug128
3. got rid of typeof
4. fixed bug in t,ok = I2T

R=r
OCL=25873
CL=25873
 2009-03-06 17:50:43 -08:00
Russ Cox
af678a593d new approach for generating sysimport.c 
(renamed to avoid any conflict with old p4 copies).

this approach doesn't require auto-generating
files also kept in p4, so it should be easier on
go users who don't sync very often.

this approach will be more work for go developers:
builtin.c needs to be copied to builtin.c.boot in p4
as new functions are added.  mkbuiltin does this
for certain $USERs to help us remember.

R=r
DELTA=343  (176 added, 162 deleted, 5 changed)
OCL=25803
CL=25805
 2009-03-05 18:26:12 -08:00
Russ Cox
63985b489b bug085 bug129 
R=ken
OCL=25787
CL=25791
 2009-03-05 15:57:03 -08:00
Ken Thompson
bf983477a2 new switch implementation 
in preparation of type switch.
no functional change (yet).

R=r
OCL=25784
CL=25788
 2009-03-05 15:49:34 -08:00
Russ Cox
98b34e5bbd reject invalid map key types at compile time 
R=ken
OCL=25720
CL=25720
 2009-03-04 17:38:37 -08:00
Russ Cox
955638e2fb disallow ordinary-type.(T), as in spec. 
R=ken
OCL=25705
CL=25705
 2009-03-04 14:50:25 -08:00
Russ Cox
49cc649e59 back to T{x}, stricter handling of T(x) vs x.(T) 
R=ken
DELTA=131  (60 added, 41 deleted, 30 changed)
OCL=25617
CL=25633
 2009-03-03 08:41:02 -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
Ken Thompson
751d13cbce bug 130 (go/defer) interface.method() 
R=r
OCL=25356
CL=25356
 2009-02-23 22:43:04 -08:00
Ken Thompson
a665e2924c bug with select := 
R=r
OCL=25278
CL=25278
 2009-02-21 12:41:34 -08:00
Russ Cox
ebc10db3e1 allow parens to disambiguate types. 
examples:

	chan <- (chan int)
	chan (<- chan int)
	(map[string]func())("a": main)

R=ken
OCL=25151
CL=25151
 2009-02-18 10:07:46 -08:00
Ken Thompson
3c0fc400fb fix unsafe.Sizeof("abc") 
R=rsc
OCL=25105
CL=25105
 2009-02-17 13:10:57 -08:00
Russ Cox
d3d0c256be bug123 
R=ken
OCL=25075
CL=25075
 2009-02-16 17:44:05 -08:00
Russ Cox
b4af09ab56 embedded interface types in interfaces. 
R=ken
OCL=25072
CL=25072
 2009-02-16 16:36:18 -08:00
Russ Cox
97dcc68f1e insert ${GOOS} and ${GOARCH} in 
command-line comment.

R=r
DELTA=11  (6 added, 0 deleted, 5 changed)
OCL=25051
CL=25051
 2009-02-15 19:20:35 -08:00
Russ Cox
3b3e63735e bug fix for &x[0] when x is slice 
R=ken
OCL=25044
CL=25044
 2009-02-15 13:15:46 -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
Russ Cox
07244f7c80 add composite literal ( ) syntax. 
warn about composite literal { } syntax.

R=ken
OCL=25018
CL=25023
 2009-02-13 14:48:16 -08:00
Russ Cox
5f4f5647ef require type assertions when narrowing. 
R=ken
OCL=24350
CL=24914
 2009-02-11 17:57:29 -08:00
Russ Cox
73dd4a37f9 fix export bug Rob tripped over. 
the lexer is already hiding names,
so this clumsy hack is no longer necessary.

R=ken
OCL=24783
CL=24783
 2009-02-10 13:57:31 -08:00
Ian Lance Taylor
651972b31f Implement unsafe.Alignof. 
R=ken
DELTA=20  (19 added, 0 deleted, 1 changed)
OCL=24719
CL=24771
 2009-02-10 11:46:26 -08:00
Russ Cox
a81870badf add error to catch 6g alignment bug. 
the fix appears to be to align the
out struct on an 8 boundary, but that
is a bit involved.

R=ken
OCL=24657
CL=24657
 2009-02-08 11:19:45 -08:00
Russ Cox
a6c59ce274 gc funarg return fix. 
change type (to satisfy OAS) after nodarg:
nodarg uses offset from type too,
and must use correct offset.

R=ken
OCL=24656
CL=24656
 2009-02-08 11:01:52 -08:00