Coccinelle: Add iterators/fen.cocci

/// These iterators only exit normally when the loop cursor is NULL, so there

/// is no point to call of_node_put on the final value.

///

// Confidence: High

// 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 name for_each_node_by_name;

expression np,E;

identifier l;

@@

for_each_node_by_name(np,...) {

  ... when != break;

      when != goto l;

}

... when != np = E

- of_node_put(np);

@@

iterator name for_each_node_by_type;

expression np,E;

identifier l;

@@

for_each_node_by_type(np,...) {

  ... when != break;

      when != goto l;

}

... when != np = E

- of_node_put(np);

@@

iterator name for_each_compatible_node;

expression np,E;

identifier l;

@@

for_each_compatible_node(np,...) {

  ... when != break;

      when != goto l;

}

... when != np = E

- of_node_put(np);

@@

iterator name for_each_matching_node;

expression np,E;

identifier l;

@@

for_each_matching_node(np,...) {

  ... when != break;

      when != goto l;

}

... when != np = E

- of_node_put(np);