You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
15 lines
576 B
15 lines
576 B
5 years ago
|
This error type is only reported in Objective-C. This is similar to Null
|
||
|
|
dereference, but Infer hasn't found a whole trace where the error can happen,
|
||
|
|
but only found that a null dereference can happen if an instance variable of a
|
||
|
|
parameter is `nil`. For example:
|
||
|
|
|
||
|
|
```objectivec
|
||
|
|
-(int) foo {
|
||
|
|
B b* = [self->_a foo]; // sending a message with receiver nil returns nil
|
||
|
|
return b->x; // dereferencing b, potential NPE if you pass nil as the argument a.
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
Possible solutions are adding a check for `nil`, or making sure that the method
|
||
|
|
is not called with `nil`.
|