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1010 Commits

Author SHA1 Message Date
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
30228a3bc6 avoid register computing len(x), cap(x) 
for slice or string x.

R=ken
OCL=32249
CL=32249
 2009-07-27 15:55:27 -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
335b3855c6 a little more 6l cleanup 
R=r
DELTA=51  (14 added, 24 deleted, 13 changed)
OCL=31968
CL=31971
 2009-07-21 17:18:32 -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
Rob Pike
304b7954e8 add a .interp section and fix vaddr in INTERP prog. 
R=rsc
DELTA=16  (9 added, 3 deleted, 4 changed)
OCL=31956
CL=31963
 2009-07-21 16:31:35 -07:00
Rob Pike
3d42e691b9 make 6l produce dynamically linked binaries (although they are fully statically linked as far 
as go is concerned).  the -d flag is now flipped; as on the mac, -d disables dynamic.

much remains to be improved to move the output closer to the gcc format.

R=rsc
DELTA=366  (310 added, 30 deleted, 26 changed)
OCL=31929
CL=31951
 2009-07-21 15:10:47 -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
Rob Pike
f687fb7e73 6l cleanup: last set of magic numbers for elf64 moved to ld/elf64*. 
R=rsc
DELTA=68  (21 added, 28 deleted, 19 changed)
OCL=31857
CL=31864
 2009-07-20 13:19:47 -07:00
Rob Pike
fe734d8630 clean up generation of exec header. 
make endianness explicit when writing values.

R=rsc
DELTA=129  (37 added, 7 deleted, 85 changed)
OCL=31826
CL=31854
 2009-07-20 10:08:48 -07:00
Rob Pike
94d89ede1c take care of a few more magic numbers 
R=rsc
DELTA=51  (41 added, 0 deleted, 10 changed)
OCL=31815
CL=31818
 2009-07-17 17:32:34 -07:00
Rob Pike
b63d40a53e count SHdrs and PHdrs and write them out as a unit 
R=rsc
DELTA=181  (93 added, 63 deleted, 25 changed)
OCL=31802
CL=31812
 2009-07-17 16:34:58 -07:00
Rob Pike
e86dcf1603 more elf64 support: phdrs, constants 
R=rsc
DELTA=130  (68 added, 6 deleted, 56 changed)
OCL=31798
CL=31798
 2009-07-17 15:09:17 -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
Rob Pike
1593b1fc23 First steps towards cleaner support for ELF64 in 6l. 
R=rsc
DELTA=337  (165 added, 119 deleted, 53 changed)
OCL=31786
CL=31794
 2009-07-17 14:32:37 -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
Robert Griesemer
f3ffd93a61 ast: 
- renamed Program -> SourceFile
- added Package node representing the AST for an entire package
- added filter function to create a source file mimicking the
  interface of an entire package

parser:
- parser entry to parse entire packages
- unified naming of parser entry points
- factored out entry points into new file (interface.go)

gofmt:
- extended to accept single .go files, and package paths:
  gofmt file.go	     	    // formatting of a single file
  gofmt -x file.go	    // interface of a single file
  gofmt -x ./MyPackage	    // interface of a local package
  gofmt -x math		    // interface of a $GOROOT relative package

Various adjustments in dependent files, documentation.

R=rsc
DELTA=634  (369 added, 153 deleted, 112 changed)
OCL=31743
CL=31748
 2009-07-16 17:11:18 -07:00
Robert Griesemer
59ee0373fc - removed TODO, minor adjustments 
R=rsc
DELTA=16  (6 added, 1 deleted, 9 changed)
OCL=31638
CL=31641
 2009-07-14 16:30:06 -07:00
Robert Griesemer
e48d8fe091 update remaining files to match new scanner/parser interface 
and use shared error handling infrastructure

R=rsc
DELTA=109  (3 added, 86 deleted, 20 changed)
OCL=31600
CL=31605
 2009-07-14 10:46:18 -07:00
Russ Cox
10e995fba8 dead code 
R=r
DELTA=20  (0 added, 20 deleted, 0 changed)
OCL=31584
CL=31598
 2009-07-14 09:28:42 -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
a6799963ef update 6g to new REGARG convention. 
silence gcc warning.

R=ken
OCL=31583
CL=31583
 2009-07-13 23:30:30 -07:00
Russ Cox
e11447f7da bug148. 
R=ken
OCL=31582
CL=31582
 2009-07-13 23:29:44 -07:00
Kai Backman
60d223a418 added missing pieces required by reflection 
R=rsc
APPROVED=rsc
DELTA=61  (40 added, 18 deleted, 3 changed)
OCL=31502
CL=31580
 2009-07-13 22:06:28 -07:00
Kai Backman
0e2cce70cb tiny naming cleanup 
R=rsc
APPROVED=rsc
DELTA=17  (0 added, 0 deleted, 17 changed)
OCL=31503
CL=31579
 2009-07-13 22:04:24 -07:00
Kai Backman
7258bac6e8 fix bug in codegen when we modified move instruction instead 
of text.

R=rsc
APPROVED=rsc
DELTA=3  (1 added, 2 deleted, 0 changed)
OCL=31575
CL=31575
 2009-07-13 20:33:59 -07:00
Russ Cox
9e2f2fcd2e compilers were inconsistent about 
whether no register argument was
REGARG == 0 or REGARG < 0.
use REGARG < 0 because arm needs 0 for R0.

R=ken
OCL=31562
CL=31566
 2009-07-13 19:20:43 -07:00
Russ Cox
29e93590b0 fix undefined function error. 
before:
	mainstart: undefined: main·init in mainstart
	mainstart: branch out of range in mainstart
	(95)    CALL    ,0(PC) [main·init]
	mainstart: undefined: main·main in mainstart
	mainstart: branch out of range in mainstart
	(97)    CALL    ,0(PC) [main·main]
	mainstart: doasm: notfound from=6f to=6f (95)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (97)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (95)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (97)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (95)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (97)    CALL    ,

after:
	mainstart: undefined: main·init in mainstart
	mainstart: undefined: main·main in mainstart

R=r
DELTA=7  (1 added, 0 deleted, 6 changed)
OCL=31555
CL=31555
 2009-07-13 16:48:09 -07:00
Robert Griesemer
7b7b83ba1b ebnflint command 
- basic verification of EBNF grammars
- tested with (and has testcase for) go_spec.html

R=rsc
DELTA=150  (148 added, 0 deleted, 2 changed)
OCL=31481
CL=31517
 2009-07-13 10:26:58 -07:00
Kai Backman
092d6290d0 fixed typo where output arguments where pushed on to R0 
instead of SP.

R=rsc
APPROVED=rsc
DELTA=13  (3 added, 7 deleted, 3 changed)
OCL=31488
CL=31501
 2009-07-12 22:12:33 -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
Robert Griesemer
981f4b43ac mention file name only once in error message 
R=r
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=31450
CL=31452
 2009-07-10 10:01:08 -07:00
Robert Griesemer
38e7fddc21 Show BUG comments in godoc: 
ast.go:
- rename Comments -> CommentGroup (less confusion)
- change all comments/docs to be *CommentGroup

filter.go:
- do not remove unassociated comments from program as part
  of export filtering (they are needed by doc.go for BUG comments)

scanner.go:
- exclude '\n' from //-style comments

parser.go:
- rewrote collection of comments: now all collected comments
  are *ast.CommentGroups
- clarified distinction between leading and trailing comments
- fixed a bug in comment collection (parseGenDecl);
  corresponding test case is in printer/testdata
- extra documentation

doc.go:
- collect BUG comments
- corresponding fix for parser bug in comment collection

comment.go:
- simplified regex

printer.go:
- adjust comment printing to new representation

printer_test.go, testdata/*:
- enable printing of doc comments
- extended tests

package.html, package.txt:
- added Bugs section

gofmt:
- enable printing of doc comments

R=rsc
DELTA=339  (126 added, 38 deleted, 175 changed)
OCL=31403
CL=31416
 2009-07-09 16:38:17 -07:00
Russ Cox
7472f4c951 bug168 (dsymonds) + fix 
R=ken
OCL=31399
CL=31399
 2009-07-09 12:08:50 -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
7c534e1bd2 the ld-supplied typestrings are now obsolete 
R=r
DELTA=167  (0 added, 167 deleted, 0 changed)
OCL=31304
CL=31316
 2009-07-07 17:35:45 -07:00
Russ Cox
42af80348c method expansion bugs 
R=ken
OCL=31310
CL=31310
 2009-07-07 16:05:55 -07:00
Robert Griesemer
61824ff3a4 - ast.FilterExports: filter non-exported anonymous fields 
- fixed typo in parser.go
- removed test w/ syntax errors from gofmt test script

R=rsc
DELTA=25  (21 added, 0 deleted, 4 changed)
OCL=31296
CL=31298
 2009-07-07 12:02:54 -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
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
Russ Cox
7f3eb2738f implement new spec language regarding conversions 
R=ken
OCL=30519
CL=30534
 2009-06-19 14:00:53 -07:00
Russ Cox
05240bb290 use multiline string literal in gobuild 
R=r
DELTA=76  (1 added, 0 deleted, 75 changed)
OCL=30497
CL=30510
 2009-06-18 16:32:26 -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
8522a478bb update 386 to new runtime (CL 30381) 
R=r
DELTA=298  (119 added, 81 deleted, 98 changed)
OCL=30427
CL=30443
 2009-06-17 15:15:55 -07:00
Rob Pike
e15b64e87e clean gofmt 
R=rsc
OCL=30363
CL=30363
 2009-06-16 14:03:13 -07:00
Rob Pike
6202b0e287 add godoc to clean.bash 
R=rsc
OCL=30361
CL=30361
 2009-06-16 13:57:08 -07:00
Robert Griesemer
d8e4446d12 - install gofmt in src/cmd/gofmt 
- remove some left-over files

R=rsc
DELTA=1465  (281 added, 1181 deleted, 3 changed)
OCL=30350
CL=30353
 2009-06-16 12:03:32 -07:00
Kai Backman
1ac2cfc720 grab bag of changes aimed at getting stack splitting to work: 
- morestack support for 5l and arm runtime
- argsize support in 5c, 5l, ar and nm. assembly code from 5a
  will break in interesting ways unless NOSPLIT is specified
- explicit cond execution constants
- fix 5l output to use %d instead of %ld so that negative
  values show.
- added a lot of code to arm/asm.s. runtime entry code almost
  working currently aborts at gogo not implemented

R=rsc
APPROVED=rsc
DELTA=305  (125 added, 29 deleted, 151 changed)
OCL=30246
CL=30347
 2009-06-16 11:25:58 -07:00
Robert Griesemer
d45442ed65 fix build 
R=rsc
DELTA=5  (0 added, 1 deleted, 4 changed)
OCL=30343
CL=30343
 2009-06-16 09:39:57 -07:00
Robert Griesemer
f05c04146e forgot to adjust tmproot 
R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=30342
CL=30342
 2009-06-16 09:30:16 -07:00
Robert Griesemer
5071a5a572 move godoc to src/cmd/godoc 
R=rsc
DELTA=945  (944 added, 0 deleted, 1 changed)
OCL=30315
CL=30341
 2009-06-16 09:14:06 -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
Kai Backman
f2201185ab Added ld/go.c functionality into 5l, primarily dead code 
removal and typesigs and strings.

Also added new header support to 5c/5a/5l.

R=rsc
APPROVED=rsc
DELTA=98  (66 added, 10 deleted, 22 changed)
OCL=30103
CL=30123
 2009-06-09 20:51:53 -07:00
Kai Backman
1faf06eabf make 5g use 1 byte per binary asm statement. 
R=rsc
APPROVED=rsc
DELTA=4  (0 added, 4 deleted, 0 changed)
OCL=30110
CL=30112
 2009-06-09 11:34:35 -07:00
Rob Pike
d90e7cbac6 mv src/lib to src/pkg 
tests: all.bash passes, gobuild still works, godoc still works.

R=rsc
OCL=30096
CL=30102
 2009-06-09 09:53:44 -07:00
Kai Backman
83632c7359 initial morestack support for 5l. still disabled, doesn't work. 
R=rsc
APPROVED=rsc
DELTA=245  (167 added, 63 deleted, 15 changed)
OCL=30039
CL=30081
 2009-06-08 20:20:35 -07:00
Russ Cox
b7f0580274 move src/runtime -> src/lib/runtime; 
hand-edited files.

R=r
DELTA=125  (77 added, 16 deleted, 32 changed)
OCL=30001
CL=30008
 2009-06-06 22:04:50 -07:00
Russ Cox
3c06bd6201 an 8g checkpoint. 
needs cleanup, optimizer,
but all.bash works.

R=ken
OCL=29974
CL=30000
 2009-06-06 19:28:16 -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
e9e388412c 6g: add TODO about float constants back 
R=ken
OCL=29984
CL=29997
 2009-06-06 19:27:30 -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
b28d84f644 8l: add AIMULW 
R=ken
OCL=29972
CL=29972
 2009-06-05 23:52:43 -07:00
Russ Cox
8720b4721f use cc provided xlog2 instead of system log2. 
(on plan 9 cc calls it log2, but that conflicts here.)
the difference is that xlog2 returns -1 on non powers of 2.
8c was rewriting /10 into /8.

R=ken
OCL=29968
CL=29968
 2009-06-05 23:12:07 -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
Kai Backman
25ac4d07a2 Rolling galign back to 32 bit. 
R=rsc
APPROVED=rsc
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=29532
CL=29917
 2009-06-04 21:11:55 -07:00
Russ Cox
f6402313d3 don't need these anymore; 
R=kaib
DELTA=36  (0 added, 36 deleted, 0 changed)
OCL=29908
CL=29916
 2009-06-04 21:10:49 -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
f0e6a3caac dangling pointer bug (thanks valgrind) 
R=r
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=29881
CL=29885
 2009-06-04 13:33:29 -07:00
Russ Cox
3a0df4c451 more 386 runtime fixes. 
can pass many tests;
current stumbling block is an 8l bug.

R=r
DELTA=122  (83 added, 8 deleted, 31 changed)
OCL=29872
CL=29876
 2009-06-04 11:16:03 -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
ab3d40b271 trivial cut and paste: move 64-bit simulation into cgen64.c 
R=ken
OCL=29812
CL=29812
 2009-06-02 23:26:02 -07:00
Russ Cox
a00bfb5b49 8g: 
* floating point -> integer conversions.
    x86 defines that overflow/underflow
    results in 1<<15, 1<<31, 1<<63 for
    int16, int32, int64.  when building the
    unsigned conversions out of the native signed
    ones, 8g turns overflow/underflow into zero.
    the spec does not say what should happen.

  * many tiny bug fixes.  can run a large number
    of files from go/test now, and can fmt.Printf.

  * struggling with byte register allocation
    and float32 computation.

R=ken
OCL=29642
CL=29811
 2009-06-02 23:25:17 -07:00
Russ Cox
73c10dd967 386 library updates 
R=r
DELTA=161  (153 added, 0 deleted, 8 changed)
OCL=29802
CL=29809
 2009-06-02 23:22:12 -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
Russ Cox
07393f8706 8l fixes, cut and paste from 6l. 
move PtrSize value into 6l/8l files.

R=r
DELTA=78  (47 added, 15 deleted, 16 changed)
OCL=29729
CL=29798
 2009-06-02 22:33:21 -07:00
Russ Cox
278b1ab053 make godefs work better for generating Go. 
R=r
DELTA=121  (92 added, 4 deleted, 25 changed)
OCL=29706
CL=29721
 2009-06-01 22:14:25 -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
Russ Cox
91395ae689 make gobuild failures more readable. 
1. ar reports names of objects with duplicate text symbols.
2. gobuild only shows first line of error output for each failed command.
3. gobuild ignores files that begin with ascii non-alphanumeric non _.

; gobuild
$ 6g -I _obj gobuild.go
  gobuild.go:150: PackageImports: undefined
$ 6g -I _obj makefile.go
  makefile.go:102: ShellString: undefined
$ 6g -I _obj util.go
  util.go:114: syntax error near zzz
gobuild: stalemate
;

; gobuild
$ 6ar grc _obj/gobuild.a util.6 util1.6
  duplicate text symbol: util1.6 and util.6: gobuild·Build
$ 6g -I _obj gobuild.go
  gobuild.go:150: PackageImports: undefined
$ 6g -I _obj makefile.go
  makefile.go:102: ShellString: undefined
gobuild: stalemate
;

R=r
DELTA=95  (49 added, 9 deleted, 37 changed)
OCL=29625
CL=29640
 2009-05-29 18:12:04 -07:00
Ken Thompson
fbcbcdbb1d bug 156 
R=r
OCL=29623
CL=29623
 2009-05-29 15:34:47 -07:00
Ken Thompson
1c7bee0567 bug 155 
R=r
OCL=29619
CL=29619
 2009-05-29 14:42:24 -07:00
Ken Thompson
3b37b02834 bug 149 
R=r
OCL=29612
CL=29612
 2009-05-29 13:44:30 -07:00
Russ Cox
5d1d8a8258 integer conversions and test. 
R=ken
OCL=29577
CL=29589
 2009-05-29 09:17:35 -07:00
Russ Cox
6e1762c06e 64-bit integer arithmetic. 
passes ridiculous test from CL 29569.

R=ken
OCL=29571
CL=29573
 2009-05-29 00:13:09 -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
Kai Backman
63e1b714de Rebooted 5g effort from 6g. Tons of minor fixes and tweaks to 
get the code going.

R=rsc
APPROVED=rsc
DELTA=4752  (1723 added, 948 deleted, 2081 changed)
OCL=29403
CL=29530
 2009-05-28 14:25:54 -07:00
Kai Backman
97fe55720d Change 5l to use Biobufs for IO. 
R=rsc
APPROVED=rsc
DELTA=132  (16 added, 45 deleted, 71 changed)
OCL=29468
CL=29497
 2009-05-28 07:41:23 -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
Ken Thompson
64c3fe05bf string([]int) conversion 
R=r
OCL=29466
CL=29466
 2009-05-27 15:38:02 -07:00
Russ Cox
18890eebbf fix bug154; tweak bug153 exit status 
R=ken
OCL=29448
CL=29448
 2009-05-27 10:16:13 -07:00
Russ Cox
51bb8795cd 8g: missing change from last CL 
R=ken
OCL=29426
CL=29426
 2009-05-26 21:11:31 -07:00
Russ Cox
a8e4ed6a3d 8g: 64-bit arithmetic and assorted bug fixes; 
can run 64-bit sieve and powser.
interfaces are limping along.
next hurdle is floating point.

R=ken
OCL=29418
CL=29423
 2009-05-26 21:07:26 -07:00
Ken Thompson
b46e7c4d3c bug 152 
R=r
OCL=29419
CL=29419
 2009-05-26 19:48:39 -07:00
Ken Thompson
51ddddc67e bug 151 
R=r
OCL=29409
CL=29409
 2009-05-26 16:30:35 -07:00
Russ Cox
5ecd010beb more 8g. 
test/turing.go runs if you move the big array off its stack.

finally remembered to g4 add cgen.c gsubr.c

R=ken
OCL=29408
CL=29408
 2009-05-26 16:23:54 -07:00
Ken Thompson
850cd6a2fe bug 150 
R=r
OCL=29405
CL=29405
 2009-05-26 15:56:37 -07:00
Russ Cox
021abfbd28 8g: hello world works again 
* string format changed
	* files got renamed
	* new files that i forgot to check in last time
updates are all copy and paste from 6g

R=ken
OCL=29385
CL=29400
 2009-05-26 14:46:06 -07:00
Russ Cox
1f0f2e44a9 6ar: explain why __.SYMDEF didn't get put in. 
people using ar for non-object archives
will just have to deal with the warnings.

R=r
DELTA=3  (2 added, 0 deleted, 1 changed)
OCL=29384
CL=29398
 2009-05-26 14:34:32 -07:00
Kai Backman
3c7a1ef208 Added automatic detection of system libraries to 5l. 
R=rsc
APPROVED=rsc
DELTA=83  (73 added, 3 deleted, 7 changed)
OCL=29276
CL=29382
 2009-05-26 12:14:55 -07:00
Kai Backman
7943556970 Added enough arm related scaffolding to create a simple 
hello.c program linking against the runtime.

R=rsc
APPROVED=rsc
DELTA=178  (175 added, 0 deleted, 3 changed)
OCL=29283
CL=29380
 2009-05-26 11:18:42 -07:00
Ken Thompson
802e1a6104 static init reenabled 
R=r
OCL=29358
CL=29358
 2009-05-25 19:40:41 -07:00
Ken Thompson
798b19bf77 improvement in registerization 
R=r
OCL=29317
CL=29317
 2009-05-23 16:36:43 -07:00
Ken Thompson
4238b18344 1. check for dups in complex literals 
structtype{a:1, a:2}
   maptypetype{"xx":1, "xx":2}
   arraytypetype{5:1, 5:2}
2. bug in registerization concerning
   alias of a struct and one of its elements
3. code optimization of struct.field
   (which exposed bug in 2)

R=r
OCL=29315
CL=29315
 2009-05-23 15:34:29 -07:00
Russ Cox
4beac9985b simplifying grammar: delete LBASETYPE and LACONST. 
take 2

R=ken
OCL=29304
CL=29306
 2009-05-22 22:46:06 -07:00
Russ Cox
ca2fe5d8bd Automated g4 rollback of changelist 29302. 
*** Reason for rollback ***

too many files included

*** Original change description ***

simplifying grammar: delete LBASETYPE and LACONST

R=ken
OCL=29303
CL=29303
 2009-05-22 22:43:57 -07:00
Russ Cox
2a4dcfffc9 simplifying grammar: delete LBASETYPE and LACONST 
R=ken
OCL=29300
CL=29302
 2009-05-22 22:42:12 -07:00
Kai Backman
9a2a2474c6 Force usage of dollar signs to circumvent arm-gcc balking at them. 
R=rsc
APPROVED=rsc
DELTA=1  (1 added, 0 deleted, 0 changed)
OCL=29275
CL=29278
 2009-05-22 15:32:43 -07:00
Russ Cox
f4d3d22a94 enforce channel direction 
R=ken
OCL=29209
CL=29216
 2009-05-21 17:32:44 -07:00
Russ Cox
c2fa45b973 allow type name as key to accomodate anonymous fields. 
update tests.

R=ken
OCL=29207
CL=29207
 2009-05-21 16:31:10 -07:00
Ken Thompson
bba10b3f49 some array init bugs 
renamed 6g/(gen|align|obj).c

R=r
OCL=29205
CL=29205
 2009-05-21 15:44:06 -07:00
Russ Cox
8b6b380605 stricter rules for assignment. 
when assigning a multifield object
(structs or arrays of structs) they
must not contain any fields that could
not be assigned individually.

R=ken
OCL=29192
CL=29194
 2009-05-21 14:06:24 -07:00
Ken Thompson
a016081f43 added key:val extension to 
structure and array literals

R=r
OCL=29190
CL=29190
 2009-05-21 13:46:07 -07:00
Russ Cox
23e62d169f stricter interface conversion rule: i.(T) 
must have non-nil i.

R=ken
OCL=29136
CL=29136
 2009-05-20 18:23:19 -07:00
Russ Cox
a39bae095a ifaceop was being called with integers 
that came from two different enums.
spilt into ifacecvt and ifaceop depending
on which enum the argument is.

R=ken
OCL=29122
CL=29122
 2009-05-20 15:09:50 -07:00
Russ Cox
2da5022bcf change representation of interface values. 
this is not a user-visible change.

before, all interface values were

	struct Itype {
		Sigt *type;
		Sigi *inter;
		void *method[n];
	}

	struct Iface {
		void *addr;
		Itype *itype;
	}

the itype is basically a vtable, but it's unnecessary
if the static type is interface{ }.
for interface values with static type empty, the
new representation is

	struct Eface {
		void *addr;
		Sigt *type;
	}

this complicates the code somewhat, but
it reduces the number of Itypes that
have to be computed and cached,
it opens up opportunities to avoid function
calls in a few common cases,
and it will make it possible to lay out
interface{} values at compile time,
which i think i'll need for the new reflection.

R=ken
OCL=28701
CL=29121
 2009-05-20 14:57:55 -07:00
Russ Cox
47e5152790 fix implicit star for range on *map, *[]. 
do not update lineno from ONAME nodes,
	because they have declaration lineno not use.
show actual name in top-level statement error.

before
runtime.a:7: x.go:5: walkstate: NAME not a top level statement

after
x.go:14: walkstate: runtime.Goexit not a top level statement

R=ken
OCL=29113
CL=29116
 2009-05-20 14:24:23 -07:00
Ken Thompson
da49bfe664 static initialization of strings 
R=r
OCL=29036
CL=29036
 2009-05-19 13:37:36 -07:00
Ken Thompson
b91a043d02 static initialization of slices 
R=r
OCL=29016
CL=29016
 2009-05-18 22:11:22 -07:00
Robert Griesemer
1ed725d7cd - changed parser to return os.Error, removed ErrorHandler 
- added IsValid predicate to token.Position
- updated pretty, godoc, gobuild
- updated/expanded test cases

R=rsc
DELTA=265  (97 added, 78 deleted, 90 changed)
OCL=28961
CL=29005
 2009-05-18 14:59:16 -07:00
Ken Thompson
62231e91d0 static initialization with DATA statements 
structs and arrays are done
slices and maps are yet to do

R=r
OCL=28977
CL=28977
 2009-05-17 19:16:16 -07:00
Ken Thompson
52b0f77bf9 static initialization 
structure set up - no change yet

R=r
OCL=28966
CL=28966
 2009-05-16 13:29:08 -07:00
Rob Pike
a8db4593ab fix spelling error in message 
R=ken
OCL=28814
CL=28814
 2009-05-14 09:59:16 -07:00
Russ Cox
d06a79e31b no need for compiler to hard-code definition of runtime. 
use the actual go source instead.

R=r
DELTA=90  (66 added, 18 deleted, 6 changed)
OCL=28708
CL=28719
 2009-05-12 16:15:52 -07:00
Russ Cox
0880593436 gobuild: command printing bug fix 
R=r
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=28583
CL=28590
 2009-05-08 16:38:42 -07:00
Russ Cox
b3533dfd72 6g: 
new type equality restrictions
	better handling of renamed packages
	"sys" is no longer available to programs

R=ken
OCL=28553
CL=28578
 2009-05-08 15:40:31 -07:00
Russ Cox
917aa35f8f implications of stricter type equality: 
if both types are named, they must be
the same type (arising from the same
declaration).

R=r,gri
DELTA=44  (21 added, 4 deleted, 19 changed)
OCL=28436
CL=28577
 2009-05-08 15:40:14 -07:00
Russ Cox
918afd9491 move things out of sys into os and runtime 
R=r
OCL=28569
CL=28573
 2009-05-08 15:21:41 -07:00
Rob Pike
c367d1b789 Move sys.Reflect and sys.Unreflect into unsafe. 
R=rsc
DELTA=19  (4 added, 5 deleted, 10 changed)
OCL=28563
CL=28566
 2009-05-08 14:57:56 -07:00
Russ Cox
d4fa253837 eqtype(t1, t2, 0) => eqtype(t1, t2) 
R=ken
OCL=28559
CL=28562
 2009-05-08 14:40:38 -07:00
Rob Pike
c8b47c6fce Name change to improve embeddability: 
io.Read->io.Reader
	io.Write,Close,etc.->io.Writer,Closer etc.

R=rsc
DELTA=190  (0 added, 0 deleted, 190 changed)
OCL=28525
CL=28535
 2009-05-08 11:22:57 -07:00
Russ Cox
401a95aa83 if a struct s contains an anonymous interface value 
with method m, s.m() is ok and m now shows up
in s's method set for interface runtime.

see http://cl/28419-p2 for new test interface10.go.

R=ken
OCL=28420
CL=28423
 2009-05-07 13:42:47 -07:00
Russ Cox
88a1aa8e1a 6g: error messages 
part 2; missing files

R=ken
OCL=28408
CL=28410
 2009-05-07 10:30:22 -07:00
Russ Cox
b5e212ffdd 6g: error messages 
replace "shape error across CALL" with more information.

x.go:7: not enough arguments to CALL
	a int, b int
	int
x.go:10: assignment count mismatch: 3 = 2
x.go:12: too many arguments to RETURN
	[no arguments expected]
	int, int, int

also leave type alone after conversion failure,
for later errors:

bug049.go:6: cannot convert nil constant to string
bug049.go:6: illegal types for operand: EQ
	string
	nil		# this used to be blank

R=ken
OCL=28405
CL=28407
 2009-05-07 10:29:35 -07:00