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NAME	SIZE	ACTIONS
📄 array_size.cocci	1,696 B	[ EDIT ] \| [ DEL ]
📄 badty.cocci	1,722 B	[ EDIT ] \| [ DEL ]
📄 boolconv.cocci	1,472 B	[ EDIT ] \| [ DEL ]
📄 boolinit.cocci	2,249 B	[ EDIT ] \| [ DEL ]
📄 boolreturn.cocci	698 B	[ EDIT ] \| [ DEL ]
📄 bugon.cocci	1,482 B	[ EDIT ] \| [ DEL ]
📄 cond_no_effect.cocci	2,088 B	[ EDIT ] \| [ DEL ]
📄 cstptr.cocci	827 B	[ EDIT ] \| [ DEL ]
📄 doubleinit.cocci	1,391 B	[ EDIT ] \| [ DEL ]
📄 ifaddr.cocci	659 B	[ EDIT ] \| [ DEL ]
📄 ifcol.cocci	1,241 B	[ EDIT ] \| [ DEL ]
📄 irqf_oneshot.cocci	1,951 B	[ EDIT ] \| [ DEL ]
📄 newline_in_nl_msg.cocci	1,650 B	[ EDIT ] \| [ DEL ]
📄 noderef.cocci	1,194 B	[ EDIT ] \| [ DEL ]
📄 of_table.cocci	1,366 B	[ EDIT ] \| [ DEL ]
📄 orplus.cocci	1,028 B	[ EDIT ] \| [ DEL ]
📄 returnvar.cocci	1,253 B	[ EDIT ] \| [ DEL ]
📄 semicolon.cocci	1,062 B	[ EDIT ] \| [ DEL ]
📄 warn.cocci	1,661 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: returnvar.cocci

///
/// Remove unneeded variable used to store return value.
///
// Confidence: Moderate
// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.  GPLv2.
// URL: http://coccinelle.lip6.fr/
// Comments: Comments on code can be deleted if near code that is removed.
//           "when strict" can be removed to get more hits, but adds false
//           positives
// Options: --no-includes --include-headers

virtual patch
virtual report
virtual context
virtual org

@depends on patch@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
    when strict
return
- ret
+ C
;

@depends on context@
type T;
constant C;
identifier ret;
@@
* T ret = C;
... when != ret
    when strict
* return ret;

@r1 depends on report || org@
type T;
constant C;
identifier ret;
position p1, p2;
@@
T ret@p1 = C;
... when != ret
    when strict
return ret@p2;

@script:python depends on report@
p1 << r1.p1;
p2 << r1.p2;
C << r1.C;
ret << r1.ret;
@@
coccilib.report.print_report(p1[0], "Unneeded variable: \"" + ret + "\". Return \"" + C + "\" on line " + p2[0].line)

@script:python depends on org@
p1 << r1.p1;
p2 << r1.p2;
C << r1.C;
ret << r1.ret;
@@
cocci.print_main("unneeded \"" + ret + "\" variable", p1)
cocci.print_sec("return " + C + " here", p2)