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DirectIvarAssignment: Replace vtable'd objects with simple functions. 

Avoids unnecessary static constructors.

llvm-svn: 188083
This commit is contained in:
Benjamin Kramer 2013-08-09 17:17:42 +00:00
parent f103c2f946
commit 27bc504285
1 changed files with 19 additions and 31 deletions
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50
clang/lib/StaticAnalyzer/Checkers/DirectIvarAssignment.cpp
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@ -40,21 +40,15 @@ namespace {
///
/// Checks for the init, dealloc, and any other functions that might be allowed
/// to perform direct instance variable assignment based on their name.
struct MethodFilter {
virtual ~MethodFilter() {}
virtual bool operator()(ObjCMethodDecl *M) {
if (M->getMethodFamily() == OMF_init ||
M->getMethodFamily() == OMF_dealloc ||
M->getMethodFamily() == OMF_copy ||
M->getMethodFamily() == OMF_mutableCopy ||
M->getSelector().getNameForSlot(0).find("init") != StringRef::npos ||
M->getSelector().getNameForSlot(0).find("Init") != StringRef::npos)
return true;
return false;
}
};
static MethodFilter DefaultMethodFilter;
static bool DefaultMethodFilter(const ObjCMethodDecl *M) {
if (M->getMethodFamily() == OMF_init || M->getMethodFamily() == OMF_dealloc ||
M->getMethodFamily() == OMF_copy ||
M->getMethodFamily() == OMF_mutableCopy ||
M->getSelector().getNameForSlot(0).find("init") != StringRef::npos ||
M->getSelector().getNameForSlot(0).find("Init") != StringRef::npos)
return true;
return false;
}
class DirectIvarAssignment :
public Checker<check::ASTDecl<ObjCImplementationDecl> > {
@ -89,7 +83,7 @@ class DirectIvarAssignment :
};
public:
MethodFilter *ShouldSkipMethod;
bool (*ShouldSkipMethod)(const ObjCMethodDecl *);
DirectIvarAssignment() : ShouldSkipMethod(&DefaultMethodFilter) {}
@ -230,22 +224,16 @@ void ento::registerDirectIvarAssignment(CheckerManager &mgr) {
// Register the checker that checks for direct accesses in functions annotated
// with __attribute__((annotate("objc_no_direct_instance_variable_assignment"))).
namespace {
struct InvalidatorMethodFilter : MethodFilter {
virtual ~InvalidatorMethodFilter() {}
virtual bool operator()(ObjCMethodDecl *M) {
for (specific_attr_iterator<AnnotateAttr>
AI = M->specific_attr_begin<AnnotateAttr>(),
AE = M->specific_attr_end<AnnotateAttr>(); AI != AE; ++AI) {
const AnnotateAttr *Ann = *AI;
if (Ann->getAnnotation() == "objc_no_direct_instance_variable_assignment")
return false;
}
return true;
static bool AttrFilter(const ObjCMethodDecl *M) {
for (specific_attr_iterator<AnnotateAttr>
AI = M->specific_attr_begin<AnnotateAttr>(),
AE = M->specific_attr_end<AnnotateAttr>();
AI != AE; ++AI) {
const AnnotateAttr *Ann = *AI;
if (Ann->getAnnotation() == "objc_no_direct_instance_variable_assignment")
return false;
}
};
InvalidatorMethodFilter AttrFilter;
return true;
}
void ento::registerDirectIvarAssignmentForAnnotatedFunctions(