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150a64572b
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Author SHA1 Message Date
Russ Cox
150a64572b remove declarations for functions that cannot be called from c 
(because they return values in the input parameters).

R=iant
DELTA=12  (0 added, 11 deleted, 1 changed)
OCL=30952
CL=30965
 2009-06-30 20:01:59 -07:00
Russ Cox
fa40c856ac convert string runtime to use cgo. 
now that cgo2c can handle it,
merge x.c and x_go.cgo into
a single x.cgo, for x=float,malloc,sema.

R=r
DELTA=1950  (954 added, 996 deleted, 0 changed)
OCL=30951
CL=30964
 2009-06-30 20:01:50 -07:00
Russ Cox
88e7fd5410 in preparation for changing 6g's behavior to 
align the output args separately from the input args,
change cgo2c to insert the necessary padding
when the two arg lists are concatenated in the c
translation.

for example, there is a runtime

	func indexstring(s string, i int32) (b byte)

right now in 6g those arguments are aligned in one
struct with s at offset 0, i at 16, and b at 20.
soon the b byte will be in its own struct and structs
are 8 aligned, so it will be b at 24.

right now cgo2c generates:

	void indexstring(string s, int32 i, byte b)

this CL makes it generate, in --6g mode:

	void indexstring(string s, int32 i, uint32, byte b)

this is valid 6c input, although not valid gcc input.
(the code is being generated for 6c only anyway.)

also, allow C code to be mixed in among the Go funcs.
every instance of the token `func' is expected to start
a new go func.

R=iant
DELTA=145  (118 added, 0 deleted, 27 changed)
OCL=30949
CL=30963
 2009-06-30 20:01:41 -07:00
Rob Pike
b968943332 scalar decoders 
R=rsc
DELTA=897  (728 added, 14 deleted, 155 changed)
OCL=30955
CL=30955
 2009-06-30 17:59:41 -07:00
Rob Pike
79b2cf92d9 pass the state to the encoders and decoders so error handling can be centralized. 
R=rsc
DELTA=172  (40 added, 6 deleted, 126 changed)
OCL=30941
CL=30944
 2009-06-30 16:20:31 -07:00
Rob Pike
f6f825141a encoders for booleans and numbers. 
R=rsc
DELTA=610  (597 added, 5 deleted, 8 changed)
OCL=30934
CL=30939
 2009-06-30 15:37:46 -07:00
Russ Cox
832e72beff delete io.ByteBuffer 
R=r
DELTA=25  (0 added, 15 deleted, 10 changed)
OCL=30892
CL=30892
 2009-06-29 20:53:05 -07:00
Russ Cox
5d5904bb4d bug163 bug164 bug166 
R=ken
OCL=30889
CL=30889
 2009-06-29 17:46:22 -07:00
Russ Cox
df36629d76 bug041 not a bug. 
can now forward declare across files

R=r
DELTA=15  (0 added, 15 deleted, 0 changed)
OCL=30873
CL=30880
 2009-06-29 17:21:33 -07:00
Russ Cox
d3a412a5ab io.StringBytes -> strings.Bytes 
io.ByteBuffer -> bytes.Buffer

left io.ByteBuffer stub around for now,
for protocol compiler.

R=r
OCL=30861
CL=30872
 2009-06-29 15:24:23 -07:00
Rob Pike
b948c437a1 integer encode/decode 
R=rsc
DELTA=185  (175 added, 10 deleted, 0 changed)
OCL=30863
CL=30871
 2009-06-29 15:15:07 -07:00
Russ Cox
8f9a953760 make use of forward method declaration 
R=r
DELTA=11  (0 added, 6 deleted, 5 changed)
OCL=30862
CL=30870
 2009-06-29 15:13:56 -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
3119221ed8 bogus test: planning to allow forward declarations 
of structs/interfaces in other files in the package.

R=r
DELTA=12  (0 added, 12 deleted, 0 changed)
OCL=30865
CL=30868
 2009-06-29 15:13:18 -07:00
Russ Cox
b32769b1a3 add os.Hostname 
R=r
DELTA=188  (182 added, 3 deleted, 3 changed)
OCL=30856
CL=30860
 2009-06-29 13:44:46 -07:00
Ian Lance Taylor
6a71f43f82 6g appears to permit semicolons to be omitted after qualified 
identifiers.  This is not one of the exceptions permitted by
th spec.

R=ken,rsc
DELTA=11  (11 added, 0 deleted, 0 changed)
OCL=30844
CL=30852
 2009-06-29 12:52:08 -07:00
Rob Pike
2b08372710 add []byte as a special case: it will have a special, efficient encoding. 
R=rsc
DELTA=16  (9 added, 1 deleted, 6 changed)
OCL=30846
CL=30846
 2009-06-29 11:29:47 -07:00
Rob Pike
104d0246ea fix gobuild bug 
R=rsc
DELTA=4  (3 added, 0 deleted, 1 changed)
OCL=30845
CL=30845
 2009-06-29 11:19:38 -07:00
Kai Backman
b2871b727e working on bgen 
- removed smallint optimizations
- lifted raddr from 5c
- add back %R, was used in gc/* causing -g to crash
- changed naddr OREGISTER to emit D_REG instead of D_OREG

R=rsc
APPROVED=rsc
DELTA=74  (38 added, 28 deleted, 8 changed)
OCL=30799
CL=30822
 2009-06-26 22:04:30 -07:00
Rob Pike
d330c712c1 Getenv: almost no one wants the error, so make it return a string that may be empty. 
Getenverror is the new name for the old routine that returns an error too.

R=rsc
DELTA=35  (7 added, 7 deleted, 21 changed)
OCL=30818
CL=30821
 2009-06-26 20:28:41 -07:00
Rob Pike
ac7f2152eb the first time a structure type appears when printing, identify it by name: 
type Foo struct { a int; next *Foo }
produces
	"Foo = struct { a int; next Foo }"

R=rsc
OCL=30797
CL=30820
 2009-06-26 20:28:06 -07:00
Kai Backman
d6197d94b5 Adding more debug output when 5l encounters a bad op 
combination.

R=rsc
APPROVED=rsc
DELTA=69  (68 added, 0 deleted, 1 changed)
OCL=30798
CL=30801
 2009-06-26 13:44:25 -07:00
Kai Backman
4556c04d8b more changes to make 5g code generation arm compatible. 
R=rsc
APPROVED=rsc
DELTA=72  (12 added, 52 deleted, 8 changed)
OCL=30748
CL=30793
 2009-06-26 04:08:20 -07:00
Rob Pike
7986de6e51 gobs part 1: types. 
not ready to be part of the standard build yet; this is just a checkpoint.

R=rsc
DELTA=361  (361 added, 0 deleted, 0 changed)
OCL=30782
CL=30785
 2009-06-25 22:08:51 -07:00
David Symonds
a2a827542a http Request parsing, plus a convenient accessor. 
R=rsc
APPROVED=rsc
DELTA=95  (40 added, 14 deleted, 41 changed)
OCL=30727
CL=30784
 2009-06-25 21:05:44 -07:00
Russ Cox
480f51243c bug165 
R=ken
OCL=30783
CL=30783
 2009-06-25 21:02:39 -07:00
Russ Cox
a0bcaf4c00 Change os.Error convention: 
echo back context of call in error if likely to be useful.

For example, if os.Open("/etc/passwd", os.O_RDONLY)
fails with syscall.EPERM, it returns as the os.Error

	&PathError{
		Op: "open",
		Path: "/etc/passwd"
		Error: os.EPERM
	}

which formats as

	open /etc/passwd: permission denied

Not converted:

	datafmt
	go/...
	google/...
	regexp
	tabwriter
	template

R=r
DELTA=1153  (561 added, 156 deleted, 436 changed)
OCL=30738
CL=30781
 2009-06-25 20:24:55 -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
cf370a6206 add ./ to imports where necessary 
R=r
DELTA=51  (4 added, 4 deleted, 43 changed)
OCL=30759
CL=30778
 2009-06-25 20:13:56 -07:00
Rob Pike
7de4883412 cannot have interfaces refer to themselves as map keys 
R=rsc
DELTA=11  (11 added, 0 deleted, 0 changed)
OCL=30774
CL=30774
 2009-06-25 18:44:28 -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
ae11e9eb88 fix build 
TBR=r
OCL=30757
CL=30757
 2009-06-25 15:15:44 -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
Russ Cox
4c5c0f437f update tests for CL 30586. 
won't submit unless 30586 goes in.

R=r
DELTA=94  (65 added, 16 deleted, 13 changed)
OCL=30592
CL=30755
 2009-06-25 14:44:09 -07:00
Russ Cox
eaa92e027b Allow indexing of slice types, but not pointer to slice type. 
Allow indexing of string type, but not pointer to string type.
Do not allow indexing of pointer to map type.

R=r
DELTA=18  (14 added, 0 deleted, 4 changed)
OCL=30586
CL=30754
 2009-06-25 14:43:55 -07:00
Russ Cox
4866223c2e add reflect.Typeof; test for and fix nil interface bug in DeepEqual 
R=r
DELTA=40  (30 added, 2 deleted, 8 changed)
OCL=30742
CL=30753
 2009-06-25 14:25:38 -07:00
Russ Cox
6af5775d74 dreg 
R=r
DELTA=19  (0 added, 19 deleted, 0 changed)
OCL=30739
CL=30751
 2009-06-25 14:25:11 -07:00
Kai Backman
111005d32b Add Gobuf.r0 that stores arg0 or return value of 
goroutine. arm only.

R=rsc
APPROVED=rsc
DELTA=5  (3 added, 2 deleted, 0 changed)
OCL=30644
CL=30746
 2009-06-25 11:26:10 -07:00
Kai Backman
190b5c9ad2 fixes to 5g object file generation. arm specific regalloc. 
R=rsc
APPROVED=rsc
DELTA=976  (164 added, 237 deleted, 575 changed)
OCL=30705
CL=30743
 2009-06-25 11:01:17 -07:00
Russ Cox
94439982b6 Effective Go; draft 
TBR=r
OCL=30741
CL=30741
 2009-06-25 09:38:35 -07:00
Russ Cox
a50cbf6c73 style police: parens in if, for, switch, range 
R=r
DELTA=32  (0 added, 3 deleted, 29 changed)
OCL=30718
CL=30725
 2009-06-24 20:12:50 -07:00
David Symonds
30533d607a Change strings.Split, bytes.Split to take a maximum substring count argument. 
R=rsc
APPROVED=r
DELTA=131  (39 added, 10 deleted, 82 changed)
OCL=30669
CL=30723
 2009-06-24 19:02:29 -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
2ce8b444b9 base64: cut out some middle layers 
R=austin
DELTA=352  (67 added, 196 deleted, 89 changed)
OCL=30694
CL=30713
 2009-06-24 15:52:31 -07:00
Russ Cox
a1646fd50e make bytes.Copy both src- and dst- limited 
and return the number of bytes copied.

R=r
DELTA=18  (6 added, 0 deleted, 12 changed)
OCL=30693
CL=30712
 2009-06-24 15:35:35 -07:00