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292 Commits

Author SHA1 Message Date
Russ Cox
7f4c5ea7d8 gc: implement goto restriction 
Remove now-unnecessary zeroing of stack frames.

R=ken2
CC=golang-dev
https://golang.org/cl/4641044
 2011-06-17 15:25:05 -04:00
Luuk van Dijk
56668283f1 gc: allow tags on parameters in export section of object files. 
This is in preparation of escape analysis; function parameters
can now be tagged with interesting bits by the compiler by
assigning to n->note.

tested by having typecheck put a fake tag on all parameters of
pointer type and compiling the tree.

R=rsc
CC=golang-dev
https://golang.org/cl/4524092
 2011-06-03 03:54:56 +02:00
Anthony Martin
67b4db9e9e gc: check parameter declarations in interface fields 
Fixes #1663.
Fixes #1871.

R=rsc, lstoakes
CC=golang-dev
https://golang.org/cl/4530084
 2011-05-31 13:41:32 -04:00
Russ Cox
5ff3336490 gc: correct handling of unexported method names in embedded interfaces 
go/types: update for export data format change
reflect: require package qualifiers to match during interface check
runtime: require package qualifiers to match during interface check
test: fixed bug324, adapt to be silent

Fixes #1550.
Issue 1536 remains open.

R=gri, ken2, r
CC=golang-dev
https://golang.org/cl/4442071
 2011-04-21 08:14:50 -04:00
Russ Cox
017e73c1b2 gc: fix func syntax error 
Fixes #1685.

R=ken2
CC=golang-dev
https://golang.org/cl/4414042
 2011-04-13 22:48:21 -04:00
Russ Cox
8bf34e3356 gc, runtime: replace closed(c) with x, ok := <-c 
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/4259064
 2011-03-11 14:47:26 -05:00
Russ Cox
52943bfe4d gc: require if condition 
R=ken2, r2
CC=golang-dev
https://golang.org/cl/4195045
 2011-02-22 18:23:29 -05:00
Russ Cox
c1a695c160 gc, ld: package name main no longer reserved 
R=ken2
CC=golang-dev
https://golang.org/cl/4128054
 2011-02-03 14:17:20 -05:00
Russ Cox
05b9050bda gc: handle invalid name in type switch 
Fixes #1453.

R=ken2
CC=golang-dev
https://golang.org/cl/4125043
 2011-02-01 14:00:36 -05:00
Russ Cox
0e47460915 gc: fix send precedence 
Test and fix case found by Robert.
Add receive inside send to tree too.

R=ken2
CC=golang-dev
https://golang.org/cl/3973052
 2011-02-01 08:29:21 -05:00
Russ Cox
cb584707af gc: remove non-blocking send, receive syntax 
R=ken2
CC=golang-dev
https://golang.org/cl/4126043
 2011-01-31 18:52:16 -05:00
Eoghan Sherry
6aa85d1cbe gc: fix method offsets of anonymous interfaces 
Fixes #1290.

R=rsc
CC=golang-dev
https://golang.org/cl/3259043
 2010-12-07 12:56:26 -05:00
Russ Cox
8ffc4ec5d0 gc: implement new composite literal spec 
R=ken2
CC=golang-dev
https://golang.org/cl/2350041
 2010-10-21 23:17:20 -04:00
Russ Cox
a3c682267f gc: various bugs 
Fixes #1016.
Fixes #1152.
Fixes #1153.

R=ken2
CC=golang-dev
https://golang.org/cl/2344042
 2010-10-03 11:50:44 -04:00
Russ Cox
9b62461a8f gc: allow select case expr = <-c 
Fixes #1139.

R=ken2
CC=golang-dev
https://golang.org/cl/2194046
 2010-09-27 12:04:21 -04:00
Russ Cox
75dd8fdb34 gc: ... changes 
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/2208047
 2010-09-24 11:55:30 -04:00
Russ Cox
1678dcc378 gc: more accurate line numbers for ATEXT 
and other begin and end of function code

R=ken2
CC=golang-dev
https://golang.org/cl/2158044
 2010-09-09 17:11:51 -04:00
Scott Lawrence
fce222a95b gc: implement new slice spec 
Fixes #382.

R=gri, cw, r, rsc
CC=golang-dev
https://golang.org/cl/1957045
 2010-09-08 22:20:29 -04:00
Russ Cox
1cb951d994 gc: appease bison version running on FreeBSD builder 
R=ken2
CC=golang-dev
https://golang.org/cl/2141042
 2010-09-02 14:31:39 -04:00
Russ Cox
dea283750b gc: fix spurious syntax error 
Fixes #1071.

R=ken2
CC=golang-dev
https://golang.org/cl/2136043
 2010-09-02 14:16:01 -04:00
Russ Cox
b1311cbc93 gc: fix parenthesization check 
Cannot use paren field in Node because all
instances of a given symbol name use the same Node.

Fixes #1022.

R=ken2
CC=golang-dev
https://golang.org/cl/2015043
 2010-08-23 23:10:25 -04:00
Russ Cox
c6cb303a8a gc: bug299, bug300 
R=ken2
CC=golang-dev
https://golang.org/cl/1731057
 2010-08-03 00:53:32 -07:00
Russ Cox
691d765121 gc: bug274 
R=ken2
CC=golang-dev
https://golang.org/cl/1742044
 2010-07-15 15:05:56 -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
76da2780c3 gc: less aggressive name binding, for better line numbers in errors 
Cleans up a few other corner cases too.

R=ken2
CC=golang-dev
https://golang.org/cl/1592045
 2010-06-12 11:17:24 -07:00
Russ Cox
d20ad1c75a gc: change -u to require imports to be marked safe 
R=ken2
CC=golang-dev
https://golang.org/cl/1597043
 2010-06-11 15:28:43 -07:00
Robert Griesemer
98b27814ae gc: better error message when ~ operator is found 
Fixes #844.

R=ken2, rsc, ken3
CC=golang-dev
https://golang.org/cl/1593041
 2010-06-07 18:27:26 -07:00
Russ Cox
8c2bc4419b gc: fix shift/reduce conflict in go.y export syntax 
Fixes #771.

R=ken2
CC=golang-dev
https://golang.org/cl/1267042
 2010-05-24 16:55:23 -07:00
Russ Cox
2e9b67afa6 gc: bug277 - new conversion syntax 
R=ken2
CC=golang-dev
https://golang.org/cl/1220046
 2010-05-24 15:25:30 -07:00
Russ Cox
d6e4e18c8c gc: more specific error for statements at top level 
R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/1006041
 2010-04-26 22:35:27 -07:00
Russ Cox
fe7826858c gc: make sure main.main has correct type 
R=ken2
CC=golang-dev
https://golang.org/cl/883049
 2010-04-11 14:51:35 -07:00
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
Russ Cox
68796b0270 gc: add ... T, rework plain ... 
No longer a distinct type; now a property of func types.

R=ken2
CC=golang-dev
https://golang.org/cl/197042
 2010-02-01 00:25:59 -08:00
Russ Cox
2a01d72878 gc: improved syntax errors 
* example-based syntax errors (go.errors)

* enable bison's more specific errors
  and translate grammar token names into
  tokens like ++

* test cases

R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/194085
 2010-01-26 23:13:22 -08:00
Russ Cox
7abb4b3a96 gc: fix chan <- chan precedence. 
also allow func() func().

R=ken2
CC=golang-dev
https://golang.org/cl/194078
 2010-01-26 10:40:28 -08:00
Russ Cox
531e6b77c8 eliminate package global name space 
R=ken2
CC=golang-dev
https://golang.org/cl/194071
 2010-01-25 18:31:35 -08:00
Russ Cox
1cecac8134 gc: record full package paths in runtime type data 
detect compilation of special package runtime with
compiler flag instead of package name.

R=ken2
CC=golang-dev
https://golang.org/cl/193080
 2010-01-24 23:33:59 -08:00
Russ Cox
fd150e77e1 gc: cut some dead code, fix 6g -S output 
R=ken2
CC=golang-dev
https://golang.org/cl/193079
 2010-01-24 22:36:26 -08:00
Russ Cox
758f2bc556 eliminate the package global name space assumption in object files 
5g/6g/8g: add import statements to export metadata, mapping package path to package name.
	recognize "" as the path of the package in export metadata.
	use "" as the path of the package in object symbol names.

5c/6c/8c, 5a/6a/8a: rewrite leading . to "". so that ·Sin means Sin in this package.

5l/6l/8l: rewrite "" in symbol names as object files are read.

gotest: handle new symbol names.

gopack: handle new import lines in export metadata.

Collectively, these changes eliminate the assumption of a global
name space in the object file formats.  Higher level pieces such as
reflect and the computation of type hashes still depend on the
assumption; we're not done yet.

R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/186263
 2010-01-22 17:06:20 -08:00
Russ Cox
a6736fa4ff cleanup toward eliminating package global name space 
* switch to real dot (.) instead of center dot (·) everywhere in object files.
    before it was half and half depending on where in the name it appeared.
  * in 6c/6a/etc identifiers, · can still be used but turns into . immediately.
  * in export metadata, replace package identifiers with quoted strings
    (still package names, not paths).

R=ken2, r
CC=golang-dev
https://golang.org/cl/190076
 2010-01-19 21:34:44 -08:00
Russ Cox
c715b58dad gc: fix import name resolution 
Fixes #403.

R=ken2
https://golang.org/cl/180052
 2009-12-15 16:44:28 -08:00
Russ Cox
101f499fa5 gc: allow ... in method lists 
R=ken2
https://golang.org/cl/179070
 2009-12-15 16:20:37 -08:00
Russ Cox
d122bb2193 gc: double-check usage of ... 
Fixes #423.

R=ken2
https://golang.org/cl/180045
 2009-12-15 14:26:50 -08:00
Russ Cox
978c3e96d1 gc: fix comment 
R=gri
CC=golang-dev
https://golang.org/cl/174077
 2009-12-13 12:11:56 -08:00
Russ Cox
3997495dc3 gc: semicolons 
Fixes #89.
Fixes #92.
Fixes #118.
Fixes #182.
Fixes #328.
Fixes #340.

R=ken2, ken3
CC=golang-dev
https://golang.org/cl/172049
 2009-12-11 15:59:41 -08:00
Russ Cox
e733766dda gc: minor import grammar bug fixes 
Fixes #364.

R=ken2
https://golang.org/cl/164092
 2009-12-03 00:10:32 -08:00
Russ Cox
652f55672d x[lo:] - gc and runtime. 
* add runtime sliceslice1 for x[lo:]
  * remove runtime arraytoslice, rewriting &arr into arr[0:len(arr)].
  * port cgen_inline into 8g, 5g.
  * use native memmove in maps

R=ken2
https://golang.org/cl/157106
 2009-11-20 09:11:46 -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
593ccd1d44 yet another attempt to avoid conflicts with 
<stdio.h>, which we weren't even #including

R=r
https://golang.org/cl/154108
 2009-11-12 23:38:48 -08:00
Russ Cox
9f42ccb781 error rewording suggested by robert. 
update comment.

R=ken
http://go/go-review/1025031
 2009-11-09 15:25:18 -08:00
Russ Cox
62c4818ee0 bug136 
R=ken
OCL=35902
CL=35904
 2009-10-19 20:39:18 -07:00
Russ Cox
22a5c78f44 rename sys functions to runtime, 
because they are in package runtime.

another step to enforcing package boundaries.

R=r
DELTA=732  (114 added, 93 deleted, 525 changed)
OCL=35811
CL=35824
 2009-10-15 23:10:49 -07:00
Russ Cox
2372408189 sort errors by line number 
turn off testdclstack and "not used" errors
when there are syntax errors.

BUG=2181825
R=ken
OCL=35606
CL=35608
 2009-10-12 11:03:48 -07:00
Russ Cox
fd76b4f385 new builtin.c.boot from arm. 
node printing fixes.
silence incorrect redeclaration error.

R=ken
OCL=35602
CL=35602
 2009-10-12 10:12:37 -07:00
Russ Cox
d515063588 better handling of mistaken top-level variable 
references during the parsing of :=.  the base
problem is that when reading

	a,b,c,d

the parser makes those refer to existing variables,
which might create a few stub top-level ones
for undefined names, but then if a := is the next
token, we need to undo those stubs.

this was causing problems in multifile packages
in which one file used a := variable named rpc
and the other imported a package named rpc.

R=ken
OCL=35446
CL=35446
 2009-10-07 14:55:12 -07:00
Russ Cox
6f1698774d undo 35108 (disallow parens around type in struct literal). 
allow parens around [...]int in struct literal.

R=ken
OCL=35112
CL=35130
 2009-09-29 21:21:14 -07:00
Russ Cox
9c3c140984 disallow parens around type in struct literal syntax, 
per discussion with gri.

R=ken
OCL=35108
CL=35108
 2009-09-29 16:05:44 -07:00
Russ Cox
7743ffead4 disallow interface { x, y() } 
R=ken
OCL=35042
CL=35044
 2009-09-28 14:05:34 -07:00
Russ Cox
73e52ae971 check for unused imports 
R=ken
OCL=34732
CL=34756
 2009-09-17 16:42:10 -07:00
Russ Cox
aaaa1fc69b make 6g match spec: 
no semicolon allowd after package clause.
	semicolon allowed after import statement.
	no doubled semicolons allowed

R=ken
OCL=34674
CL=34674
 2009-09-15 17:29:08 -07:00
Russ Cox
59914723df declared and not used error, but disabled. 
fix some bugs involving _.

R=ken
OCL=34621
CL=34621
 2009-09-14 18:38:30 -07:00
Russ Cox
aa6e81dd71 a few more blank tests 
R=ken
OCL=34500
CL=34500
 2009-09-09 16:59:41 -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
5d16d23362 update type switch to match spec. 
R=ken
OCL=34471
CL=34471
 2009-09-09 00:18:16 -07:00
Russ Cox
27c4e7e74e catch package net import "net" for release 
R=ken
OCL=34205
CL=34207
 2009-09-01 14:12:09 -07:00
Russ Cox
5600435fe4 produce diagnostic for 
import "fmt"
var fmt = 1

R=ken
OCL=33556
CL=33561
 2009-08-19 17:27:08 -07:00
Russ Cox
38df5ec58d try to do better line number reporting 
in the presence of yacc lookahead.
better but still not perfect

R=ken
OCL=33541
CL=33541
 2009-08-19 15:18:08 -07:00
Russ Cox
a92610208e delete code for forward type declarations 
R=ken
OCL=33108
CL=33113
 2009-08-12 14:41:13 -07:00
Russ Cox
66bb399fdd whole-package compilation 
R=ken
OCL=33063
CL=33095
 2009-08-12 13:18:19 -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
2609731736 delay range processing. old2new is gone 
R=ken
OCL=32780
CL=32780
 2009-08-05 02:33:30 -07:00
Russ Cox
54b403723b delay := processing 
R=ken
OCL=32772
CL=32772
 2009-08-05 00:42:44 -07:00
Russ Cox
a121410541 make Syms smaller. 
collapse a lot of duplication in dcl.c
switch to NodeList* from Dcl*

R=ken
OCL=32770
CL=32770
 2009-08-04 22:59:23 -07:00
Russ Cox
aa347c4a0d move various bits of code around 
and delete some dead code.
no actual changes here.

R=ken
OCL=32764
CL=32764
 2009-08-04 18:43:32 -07:00
Russ Cox
dbe004efe4 delayed evaluation of var blocks 
R=ken
OCL=32750
CL=32753
 2009-08-04 16:53:06 -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
Russ Cox
056940d84b convert walkexpr to take Node**; drop indir 
R=ken
OCL=32421
CL=32421
 2009-07-29 12:00:34 -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
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
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
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
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
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
7af032b87b fix forward struct declarations 
R=ken
OCL=31230
CL=31230
 2009-07-06 18:05:11 -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
5d5904bb4d bug163 bug164 bug166 
R=ken
OCL=30889
CL=30889
 2009-06-29 17:46:22 -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
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
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
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
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
d6a9817051 bug157 
R=ken
OCL=29651
CL=29653
 2009-05-30 21:18:15 -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
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
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
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