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//
// Fix error return code
//
// Target: Linux
// Copyright: 2012 - LIP6/INRIA
// License: Licensed under ISC. See LICENSE or http://www.isc.org/software/license
// Author: Julia Lawall <Julia.Lawall@lip6.fr>
// URL: http://coccinelle.lip6.fr/
// URL: http://coccinellery.org/
@ok exists@
identifier f,ret,i;
expression e;
constant c;
@@
f(...) {
<+...
(
return -c@i;
|
ret = -c@i;
... when != ret = e
return ret;
|
if (ret < 0) { ... return ret; }
)
...+> }
@r exists@
identifier ret,l,ok.f;
expression e1,e2,e3;
statement S;
position p1,p2,p3;
@@
f(...) {
... when any
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
(
if (<+... ret = e3 ...+>) S
|
if (<+... &ret ...+>) S
|
if@p2(...)
{
... when != ret = e2
when forall
return@p3 ret;
}
)
... when any
}
@bad exists@
position r.p1,r.p2;
statement S1,S2;
identifier r.ret;
expression e1;
@@
(
if@p1 (\(ret < 0\|ret != 0\)) S1
|
ret@p1 = 0
)
... when any
ret = e1
... when any
if@p2(...) S2
@bad2@
position r.p1,r.p2;
identifier r.ret;
expression e1;
statement S2;
@@
ret@p1 = 0
... when != if (...) { ... ret = e1 ... return ret; }
when any
if@p2(...) S2
@script:python depends on !bad && !bad2@
p1 << r.p1;
p2 << r.p2;
p3 << r.p3;
@@
cocci.print_main("",p1)
cocci.print_secs("",p2)
cocci.print_secs("",p3)