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go
golang
Commits
c7ab3327
Commit
c7ab3327
authored
Dec 12, 2008
by
Ken Thompson
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restrict declarations of type map/chan/string
(they must be pointers) R=r OCL=21009 CL=21009
parent
73653841
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Showing
1 changed file
with
21 additions
and
2 deletions
+21
-2
dcl.c
src/cmd/gc/dcl.c
+21
-2
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src/cmd/gc/dcl.c
View file @
c7ab3327
...
...
@@ -483,8 +483,18 @@ loop:
if
(
n
->
op
!=
ODCLFIELD
||
n
->
type
==
T
)
fatal
(
"stotype: oops %N
\n
"
,
n
);
if
(
n
->
type
->
etype
==
TARRAY
&&
n
->
type
->
bound
<
0
)
yyerror
(
"type of a structure field cannot be an open array"
);
switch
(
n
->
type
->
etype
)
{
case
TARRAY
:
if
(
n
->
type
->
bound
<
0
)
yyerror
(
"type of a structure field cannot be an open array"
);
break
;
case
TCHAN
:
case
TMAP
:
case
TSTRING
:
yyerror
(
"%T can exist only in pointer form"
,
n
->
type
);
break
;
}
switch
(
n
->
val
.
ctype
)
{
case
CTSTR
:
...
...
@@ -732,6 +742,15 @@ addvar(Node *n, Type *t, int ctxt)
pushdcl
(
s
);
}
if
(
t
!=
T
)
{
switch
(
t
->
etype
)
{
case
TCHAN
:
case
TMAP
:
case
TSTRING
:
yyerror
(
"%T can exist only in pointer form"
,
t
);
}
}
redeclare
(
"variable"
,
s
);
s
->
vargen
=
gen
;
s
->
oname
=
n
;
...
...
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