Fixes a hard-to-reach crash when calling a non-member overloaded operator
with arguments that may be callbacks.
Future-proofing: don't make the same assumption in MallocSizeofChecker.
Aside from possibly respecting attributes in the future, it might be
possible to call 'malloc' through a function pointer.
I audited all other uses of FunctionDecl::getIdentifier() in the analyzer;
they all now correctly test to see if the identifier is present before
using it.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163012
91177308-0d34-0410-b5e6-
96231b3b80d8
SmallString<64> buf;
llvm::raw_svector_ostream OS(buf);
- OS << "Result of '"
- << i->AllocCall->getDirectCallee()->getIdentifier()->getName()
- << "' is converted to a pointer of type '"
+ OS << "Result of ";
+ const FunctionDecl *Callee = i->AllocCall->getDirectCallee();
+ if (Callee && Callee->getIdentifier())
+ OS << '\'' << Callee->getIdentifier()->getName() << '\'';
+ else
+ OS << "call";
+ OS << " is converted to a pointer of type '"
<< PointeeType.getAsString() << "', which is incompatible with "
<< "sizeof operand type '" << SizeofType.getAsString() << "'";
llvm::SmallVector<SourceRange, 4> Ranges;
IdentifierInfo *Name = FC->getDecl()->getIdentifier();
// This callback frees the associated buffer.
- if (Name->isStr("CGBitmapContextCreateWithData"))
- RE = S->getRetEffect();
+ if (Name)
+ if (Name->isStr("CGBitmapContextCreateWithData"))
+ RE = S->getRetEffect();
}
S = getPersistentSummary(RE, RecEffect, DefEffect);
return string;
}
+//===----------------------------------------------------------------------===//
+// Don't crash on non-member functions with "callbacks" but without names.
+//===----------------------------------------------------------------------===//
+
+struct IntWrapper {
+ int arg;
+};
+
+int operator>> (const IntWrapper &W, int (*f)(int)) {
+ return f(W.arg);
+}
+
+void testCallback() {
+ IntWrapper val = { 42 };
+
+ extern int process(int);
+ val >> process;
+}
+