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maint: forbid 'int foo = true'

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I noticed this while working on qemuDomainGetBlockInfo.  Assigning
a bool value to an int variable compiles fine, but raises red flags
on the maintenance front as it becomes too easy to assign -1 or 2
or any other non-bool value to the same variable.

* cfg.mk (sc_prohibit_int_assign_bool): New rule.
* src/conf/snapshot_conf.c (virDomainSnapshotRedefinePrep): Fix
offenders.
* src/qemu/qemu_driver.c (qemuDomainGetBlockInfo)
(qemuDomainSnapshotCreateXML): Likewise.
* src/test/test_driver.c (testDomainSnapshotAlignDisks):
Likewise.
* src/util/vircgroup.c (virCgroupSupportsCpuBW): Likewise.
* src/util/virpci.c (virPCIDeviceBindToStub): Likewise.
* src/util/virutil.c (virIsCapableVport): Likewise.
* tools/virsh-domain-monitor.c (cmdDomMemStat): Likewise.
* tools/virsh-domain.c (cmdBlockResize, cmdScreenshot)
(cmdInjectNMI, cmdSendKey, cmdSendProcessSignal)
(cmdDetachInterface): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Eric Blake
2014-11-17 16:39:48 -07:00
parent 2aa167cafd
commit eb9093763f
9 changed files with 20 additions and 14 deletions
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6
cfg.mk
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@@ -584,6 +584,12 @@ sc_prohibit_loop_var_decl:
halt='declare loop iterators outside the for statement' \
$(_sc_search_regexp)
# Use 'bool', not 'int', when assigning true or false
sc_prohibit_int_assign_bool:
@prohibit='\<int\>.*= *(true|false)' \
halt='use bool type for boolean values' \
$(_sc_search_regexp)
# Many of the function names below came from this filter:
# git grep -B2 '\<_('|grep -E '\.c- *[[:alpha:]_][[:alnum:]_]* ?\(.*[,;]$' \
# |sed 's/.*\.c- *//'|perl -pe 's/ ?\(.*//'|sort -u \