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810 Commits

Author SHA1 Message Date
Russ Cox
27432d67ec move 6c/pgen.c, 6c/pswt.c into cc 
and make 5c, 8c use them.

centralizes reachability analysis
and switch generation.

now 8c doesn't have spurious warnings
in pkg/runtime.

R=ken
OCL=31266
CL=31266
 2009-07-07 10:07:15 -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
Kai Backman
908cd8f857 cleaned up data generation in 5g, reverted 5l handling of D_ADDR. 
R=rsc
APPROVED=rsc
DELTA=46  (0 added, 5 deleted, 41 changed)
OCL=31241
CL=31243
 2009-07-06 23:04:56 -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
Robert Griesemer
deb954772d - ast.FilterExports: strips all non-exported nodes from an AST 
- use FilterExports instead of the various predicates in printer.go and doc.go
  which simplifies a lot of code and makes it easier to deal with complex cases

R=rsc
DELTA=445  (197 added, 190 deleted, 58 changed)
OCL=31110
CL=31196
 2009-07-06 10:37:33 -07:00
Kai Backman
cd4aab62e3 sudoaddable odot 
R=rsc
APPROVED=rsc
DELTA=7  (0 added, 1 deleted, 6 changed)
OCL=31189
CL=31191
 2009-07-06 09:23:41 -07:00
Russ Cox
6da41be2d3 fix float32 comparison. was doing l op l instead of l op r. 
R=ken
OCL=31190
CL=31190
 2009-07-06 09:05:33 -07:00
Kai Backman
86987055a3 agen, sgen, cgen_callret, cgen_asop, D_ADDR handling, gmove 
8bit and 16bit, some optoas, replaced Addr.index with
Addr.name

empty function compiles, mutex compiles

R=rsc
APPROVED=rsc
DELTA=908  (83 added, 41 deleted, 784 changed)
OCL=31127
CL=31188
 2009-07-06 06:42:37 -07:00
Kai Backman
a7735f8a16 fixed bug that cause -g to segfault 
R=rsc
APPROVED=rsc
DELTA=48  (30 added, 16 deleted, 2 changed)
OCL=31152
CL=31187
 2009-07-06 06:36:25 -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
Kai Backman
84ef63b9d5 minor comment and debug flag for dumping all oplooks. 
R=rsc
APPROVED=rsc
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=31016
CL=31126
 2009-07-02 21:35:39 -07:00
Robert Griesemer
b70563aa0a - store trailing comments after top-level declarations in ast 
- remove a test case w/ syntax errors from test suite

R=rsc
DELTA=104  (44 added, 5 deleted, 55 changed)
OCL=31078
CL=31085
 2009-07-02 15:38:36 -07:00
Rob Pike
519a70da54 fix bug in $GOROOT handling: error calling Getenv. 
R=gri
OCL=31047
CL=31047
 2009-07-02 09:47:25 -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
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
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
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
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
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
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
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
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
Kai Backman
354e61cc52 Fix compile warnings in 5l. 
R=rsc
APPROVED=rsc
DELTA=8  (0 added, 0 deleted, 8 changed)
OCL=30692
CL=30695
 2009-06-24 11:44:06 -07:00
Russ Cox
a45c54d1a5 fix gobuild. 
errors introduced in CL 30601

R=austin
DELTA=6  (3 added, 0 deleted, 3 changed)
OCL=30663
CL=30665
 2009-06-23 16:21:05 -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
Kai Backman
be639b9a51 Runtime is now starting up with a dummy c program as target: 
- morestack and gosave/gogo/gocall support
- memclr and memset from inferno
- bugfixes in _rt0_arm

R=rsc
APPROVED=rsc
DELTA=304  (174 added, 36 deleted, 94 changed)
OCL=30636
CL=30642
 2009-06-23 11:54:23 -07:00
Russ Cox
2fcc8f2fb6 avoid pointer-to-slice operations in gobuild 
R=r
DELTA=19  (3 added, 1 deleted, 15 changed)
OCL=30591
CL=30601
 2009-06-22 14:24:32 -07:00