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99 Commits

Author SHA1 Message Date
Russ Cox
e29d3dfc49 gc: new, less strict bool rules 
R=ken2
CC=golang-dev
https://golang.org/cl/5688064
 2012-02-22 00:29:37 -05:00
Russ Cox
a457fa500d gc: return of ideal bool 
This is a manual undo of CL 5674098.
It does not implement the even less strict spec
that we just agreed on, but it gets us back where
we were at the last weekly.

R=ken2
CC=golang-dev
https://golang.org/cl/5683069
 2012-02-21 22:54:07 -05:00
Russ Cox
83feedf7bf gc: fix error for floating-point constant % 
R=ken2
CC=golang-dev
https://golang.org/cl/5674108
 2012-02-19 00:12:31 -05:00
Russ Cox
126d475a43 gc: drop ideal bool 
R=golang-dev, ken2
CC=golang-dev
https://golang.org/cl/5674098
 2012-02-18 21:07:08 -05:00
Russ Cox
337547d1c9 gc: make constant arith errors a little more friendly 
Fixes #2804.

R=ken2
CC=golang-dev
https://golang.org/cl/5652067
 2012-02-11 00:50:56 -05:00
Russ Cox
be0ffbfd02 gc: implement character constant type rules 
R=ken2
CC=golang-dev
https://golang.org/cl/5444054
 2011-12-08 22:07:43 -05:00
Rémy Oudompheng
4349effb15 gc: keep pointer to original node in constant rewrites. 
This allows printing meaningful expressions in error messages
instead of evaluated constants.
Fixes #2276.

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/5432082
 2011-12-07 16:18:50 -05:00
Rémy Oudompheng
60e4a61d30 gc: don't inherit orig from subnodes in constant expression nodes. 
The wrong value made Nconv() show "1" for node "-1", and "2" from
node "2+3".
Fixes #2452.

R=gri, lvd, rsc
CC=golang-dev, remy
https://golang.org/cl/5435064
 2011-11-28 12:22:15 -05:00
Luuk van Dijk
50110c9f83 gc: clean up printing. 
Got rid of all the magic mystery globals. Now
for %N, %T, and %S, the flags +,- and # set a sticky
debug, sym and export mode, only visible in the new fmt.c.
Default is error mode. Handle h and l flags consistently with
the least side effects, so we can now change
things without worrying about unrelated things
breaking.

fixes #2361

R=rsc
CC=golang-dev
https://golang.org/cl/5316043
 2011-10-31 18:09:40 +01:00
Russ Cox
335da67e00 gc: make static initialization more static 
Does as much as possible in data layout instead
of during the init function.

Handles var x = y; var y = z as a special case too,
because it is so prevalent in package unicode
(var Greek = _Greek; var _Greek = []...).

Introduces InitPlan description of initialized data
so that it can be traversed multiple times (for example,
in the copy handler).

Cuts package unicode's init function size by 8x.
All that remains there is map initialization, which
is on the chopping block too.

Fixes sinit.go test case.

Aggregate DATA instructions at end of object file.

Checkpoint.  More to come.

R=ken2
CC=golang-dev
https://golang.org/cl/4969051
 2011-08-31 07:37:14 -04:00
Russ Cox
61f84a2cdc gc: shuffle #includes 
#include "go.h" (or "gg.h")

becomes

#include <u.h>
#include <libc.h>
#include "go.h"

so that go.y can #include <stdio.h>
after <u.h> but before "go.h".
This is necessary on Plan 9.

R=ken2
CC=golang-dev
https://golang.org/cl/4971041
 2011-08-25 16:25:10 -04:00
Russ Cox
4389192669 gc: shift type bug 
Fixes #1664.

R=ken2
CC=golang-dev
https://golang.org/cl/4798056
 2011-07-28 13:03:30 -04:00
Russ Cox
5ab096d030 gc: implement new shift rules 
The change is that 1.0<<2 is now okay.

R=ken2
CC=golang-dev
https://golang.org/cl/4524084
 2011-05-31 15:05:40 -04:00
Russ Cox
6865cc0e8e gc: avoid saying same error 3 times 
R=ken2
CC=golang-dev
https://golang.org/cl/4316051
 2011-04-01 20:52:38 -04:00
Russ Cox
5c2666c18c gc: unsafe.Pointer is not a pointer 
Change unsafe.Pointer to be its own kind of
type, instead of making it equivalent to *any.
The change complicates import and export
but avoids the need to find all the places that
operate on pointers but should not operate on
unsafe.Pointer.

Fixes #1566. (a different way)
Fixes #1582.

R=ken2
CC=golang-dev
https://golang.org/cl/4264050
 2011-03-07 15:10:01 -05:00
Jeff R. Allen
3a2d64789b gc: make string const comparison unsigned 
Make compile-time string const comparison match semantics
of runtime.cmpstring.

Fixes #1515.

R=rsc
CC=golang-dev, rog
https://golang.org/cl/4172049
 2011-02-16 17:57:15 -05:00
Russ Cox
0849944694 gc: delete float, complex 
rename cmplx -> complex

R=ken2
CC=golang-dev
https://golang.org/cl/4071041
 2011-01-19 23:08:11 -05:00
Russ Cox
9e26c4bd1a gc: complex(0) 
Fixes #1232.

R=ken2
CC=golang-dev
https://golang.org/cl/3621041
 2010-12-13 15:34:45 -05:00
Russ Cox
603f9feeec gc: another shift bug 
Fixes #1316.

R=ken2
CC=golang-dev
https://golang.org/cl/3575042
 2010-12-13 13:42:51 -05:00
Russ Cox
9bac9d23d3 gc: index bounds tests and fixes 
move constant index checking to front end
x[2:1] is a compile-time error now too

R=ken2
CC=golang-dev
https://golang.org/cl/1848056
 2010-08-03 00:26:02 -07:00
Russ Cox
f20c2e1cf5 gc: more crash avoidance 
Fixes #961.
Fixes #962.

R=ken2
CC=golang-dev
https://golang.org/cl/1903043
 2010-07-26 17:34:17 -07:00
Russ Cox
d5a80d0ba4 gc: no more ... 
various cleanup, deleting unused code

R=ken2
CC=golang-dev
https://golang.org/cl/1663041
 2010-06-14 11:24:51 -07:00
Russ Cox
565b5dc076 gc: new typechecking rules 
* Code for assignment, conversions now mirrors spec.
* Changed some snprint -> smprint.
* Renamed runtime functions to separate
  interface conversions from type assertions:
  convT2I, assertI2T, etc.
* Correct checking of \U sequences.

Fixes #840.
Fixes #830.
Fixes #778.

R=ken2
CC=golang-dev
https://golang.org/cl/1303042
 2010-06-08 18:50:02 -07:00
Ken Thompson
2edb02b41e 1. decommit complex(float) conversion 
2. add complex algorithm for map/chan
3. test for use of complex in
   array, slice, field, chan, map,
   field, pointer.

R=rsc
CC=golang-dev
https://golang.org/cl/384041
 2010-03-09 17:51:30 -08:00
Russ Cox
4ac011a011 gc: simplify complex typecheck 
do not convert to float prematurely.

R=ken2
CC=golang-dev
https://golang.org/cl/311041
 2010-03-08 15:44:18 -08:00
Russ Cox
ed13d39972 gc: minor const simplifications 
R=ken2
CC=golang-dev
https://golang.org/cl/217069
 2010-02-21 11:18:09 -08:00
Ken Thompson
f59cb49a5a fixed bug in mpconst float multiply by 0. 
more complex -- constants, variables and print.

R=rsc
CC=golang-dev
https://golang.org/cl/217061
 2010-02-19 20:42:50 -08:00
Ken Thompson
fc010adcd7 complex constant multiply and divide 
R=rsc
CC=golang-dev
https://golang.org/cl/217041
 2010-02-18 17:55:11 -08:00
Ken Thompson
713e3e1541 more complex - constants 
import and export

R=rsc
CC=golang-dev
https://golang.org/cl/214050
 2010-02-18 14:46:28 -08:00
Ken Thompson
33d6a260c1 new types complex, complex64 and complex128 
only front-end compiler work.
best to do thin in 3 steps
1. frontend
2. backend
3. lib

R=rsc
CC=golang-dev
https://golang.org/cl/214042
 2010-02-17 22:08:30 -08:00
Russ Cox
5ab8f00bf8 gc: diagnose invalid array bounds 
Fixes #587.

R=ken2
CC=golang-dev
https://golang.org/cl/207085
 2010-02-12 13:59:02 -08:00
Russ Cox
674458e1c4 gc: bug246 
R=ken2
CC=golang-dev
https://golang.org/cl/198057
 2010-02-01 23:05:15 -08:00
Russ Cox
d1b14a6fb0 gc: bug247, reported by rob 
R=ken2
CC=golang-dev
https://golang.org/cl/194051
 2010-01-24 22:42:18 -08:00
Russ Cox
307a899d5b gc: bug238 
Fixes #471.

R=ken2
CC=golang-dev
https://golang.org/cl/181184
 2010-01-08 00:01:03 -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
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
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
a95ee61aea ideal bools and related fixes 
R=ken
OCL=34859
CL=34865
 2009-09-21 15:45:55 -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
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
Russ Cox
14be733a25 bug197 
R=ken
OCL=33765
CL=33765
 2009-08-24 13:41:47 -07:00
Russ Cox
ac9d833c1e half of bug193 
R=ken
OCL=33730
CL=33730
 2009-08-23 18:09:44 -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
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
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
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