58 lines
1 KiB
Text
58 lines
1 KiB
Text
|
/// Many iterators have the property that the first argument is always bound
|
||
|
|
/// to a real list element, never NULL. False positives arise for some
|
||
|
|
/// iterators that do not have this property, or in cases when the loop
|
||
|
|
/// cursor is reassigned. The latter should only happen when the matched
|
||
|
|
/// code is on the way to a loop exit (break, goto, or return).
|
||
|
|
///
|
||
|
|
// Confidence: Moderate
|
||
|
|
// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
|
||
|
|
// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
|
||
|
|
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
|
||
|
|
// URL: http://coccinelle.lip6.fr/
|
||
|
|
// Comments:
|
||
|
|
// Options: -no_includes -include_headers
|
||
|
|
|
||
|
|
virtual patch
|
||
|
|
|
||
|
|
@@
|
||
|
|
iterator I;
|
||
|
|
expression x,E,E1,E2;
|
||
|
|
statement S,S1,S2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
I(x,...) { <...
|
||
|
|
(
|
||
|
|
- if (x == NULL && ...) S
|
||
|
|
|
|
||
|
|
- if (x != NULL || ...)
|
||
|
|
S
|
||
|
|
|
|
||
|
|
- (x == NULL) ||
|
||
|
|
E
|
||
|
|
|
|
||
|
|
- (x != NULL) &&
|
||
|
|
E
|
||
|
|
|
|
||
|
|
- (x == NULL && ...) ? E1 :
|
||
|
|
E2
|
||
|
|
|
|
||
|
|
- (x != NULL || ...) ?
|
||
|
|
E1
|
||
|
|
- : E2
|
||
|
|
|
|
||
|
|
- if (x == NULL && ...) S1 else
|
||
|
|
S2
|
||
|
|
|
|
||
|
|
- if (x != NULL || ...)
|
||
|
|
S1
|
||
|
|
- else S2
|
||
|
|
|
|
||
|
|
+ BAD(
|
||
|
|
x == NULL
|
||
|
|
+ )
|
||
|
|
|
|
||
|
|
+ BAD(
|
||
|
|
x != NULL
|
||
|
|
+ )
|
||
|
|
)
|
||
|
|
...> }
|