to the result type of a message send if the result type cannot have a
nullability specifier.
Previously, clang would print the following message when the code in
nullability.m was compiled:
"incompatible integer to pointer conversion initializing 'int *' with
an expression of type 'int _Nullable'"
This is wrong as 'int' isn't supposed to have any nullability
specifiers.
rdar://problem/
40830514
llvm-svn: 338048
if (isClassMessage)
return resultType;
+ // There is nothing left to do if the result type cannot have a nullability
+ // specifier.
+ if (!resultType->canHaveNullability())
+ return resultType;
+
// Map the nullability of the result into a table index.
unsigned receiverNullabilityIdx = 0;
if (auto nullability = ReceiverType->getNullability(Context))
[obj simpleSugar:0]; // expected-warning {{null passed to a callee that requires a non-null argument}}
[obj sugarWithTypedef:0]; // expected-warning {{null passed to a callee that requires a non-null argument}}
}
+
+// Check that we don't propagate the nullability specifier on the receiver to
+// the result type of a message send if the result type cannot have a
+// nullability specifier.
+@interface C0
+-(int) count;
+@end
+
+void testMessageSendResultType(C0 * _Nullable c0) {
+ int *p = [c0 count]; // expected-warning {{incompatible integer to pointer conversion initializing 'int *' with an expression of type 'int'}}
+}