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import org.checkerframework.checker.nullness.qual.*;
/*
* The test checks annotations in multidimention arrays.
* Each array dimention is beeing annotated with eather @Nullable or @NonNull
* to check error is thrown if assignment type is incompatible on eather
* array level.
* Tests uses 3 dimentional arrays. Each annotaion combination is used once starting
* with @Nullable [] @Nullable [] @Nullable [] and
* ends with @NonNull [] @NonNull [] @NonNull [].
*
* Test has 8 methods that returns 3-dimentional arrays where each dimention is annotated
* with eather @Nullable or @NonNull.
*
* Test containg 8 methods where all variables are beeing assign with one of arrays from
* method that returns annotated arrays.
*
* Errors are expected if one or more array levels in a declaration are annotated with @NonNull, but
* in assignment are annotated with @Nullable.
*/
public class MultidimentionalArrayAnnotationTest {
int numb = 1;
// Declared 8 3-dimentional variables.
Object @Nullable [] @Nullable [] @Nullable [] obj1 = new Object[numb][numb][numb];
Object @NonNull [] @Nullable [] @Nullable [] obj2 = new Object[numb][numb][numb];
Object @Nullable [] @NonNull [] @Nullable [] obj3 = new Object[numb][numb][numb];
Object @Nullable [] @Nullable [] @NonNull [] obj4 = new Object[numb][numb][numb];
Object @NonNull [] @NonNull [] @Nullable [] obj5 = new Object[numb][numb][numb];
Object @NonNull [] @Nullable [] @NonNull [] obj6 = new Object[numb][numb][numb];
Object @Nullable [] @NonNull [] @NonNull [] obj7 = new Object[numb][numb][numb];
Object @NonNull [] @NonNull [] @NonNull [] obj8 = new Object[numb][numb][numb];
/*
* Call to method 1 that returns Object @NonNull [] @NonNull [] @NonNull [].
* Errors are not expected.
*/
void callTomethod1() {
obj1 = method1();
obj2 = method1();
obj3 = method1();
obj4 = method1();
obj5 = method1();
obj6 = method1();
obj7 = method1();
obj8 = method1();
;
}
/*
* Call to method 2 that returns Object @Nullable [] @NonNull [] @NonNull [].
*/
void callTomethod2() {
obj1 = method2();
// :: error: (assignment.type.incompatible)
obj2 = method2();
obj3 = method2();
obj4 = method2();
// :: error: (assignment.type.incompatible)
obj5 = method2();
// :: error: (assignment.type.incompatible)
obj6 = method2();
obj7 = method2();
// :: error: (assignment.type.incompatible)
obj8 = method2();
}
/*
* Call to method 3 that returns Object @NonNull [] @Nullable [] @NonNull [].
*/
void callTomethod3() {
obj1 = method3();
obj2 = method3();
// :: error: (assignment.type.incompatible)
obj3 = method3();
obj4 = method3();
// :: error: (assignment.type.incompatible)
obj5 = method3();
obj6 = method3();
// :: error: (assignment.type.incompatible)
obj7 = method3();
// :: error: (assignment.type.incompatible)
obj8 = method3();
}
/*
* Call to method 4 that returns Object @NonNull [] @NonNull [] @Nullable [].
*/
void callTomethod4() {
obj1 = method4();
obj2 = method4();
obj3 = method4();
// :: error: (assignment.type.incompatible)
obj4 = method4();
obj5 = method4();
// :: error: (assignment.type.incompatible)
obj6 = method4();
// :: error: (assignment.type.incompatible)
obj7 = method4();
// :: error: (assignment.type.incompatible)
obj8 = method4();
}
/*
* Call to method 5 that returns Object @Nullable [] @Nullable [] @NonNull [].
*/
void callTomethod5() {
obj1 = method5();
// :: error: (assignment.type.incompatible)
obj2 = method5();
// :: error: (assignment.type.incompatible)
obj3 = method5();
obj4 = method5();
// :: error: (assignment.type.incompatible)
obj5 = method5();
// :: error: (assignment.type.incompatible)
obj6 = method5();
// :: error: (assignment.type.incompatible)
obj7 = method5();
// :: error: (assignment.type.incompatible)
obj8 = method5();
}
/*
* Call to method 6 that returns Object @Nullable [] @NonNull [] @Nullable [].
*/
void callTomethod6() {
obj1 = method6();
// :: error: (assignment.type.incompatible)
obj2 = method6();
obj3 = method6();
// :: error: (assignment.type.incompatible)
obj4 = method6();
// :: error: (assignment.type.incompatible)
obj5 = method6();
// :: error: (assignment.type.incompatible)
obj6 = method6();
// :: error: (assignment.type.incompatible)
obj7 = method6();
// :: error: (assignment.type.incompatible)
obj8 = method6();
}
/*
* Call to method 7 that returns Object @NonNull [] @Nullable [] @Nullable [].
*/
void callTomethod7() {
obj1 = method7();
obj2 = method7();
// :: error: (assignment.type.incompatible)
obj3 = method7();
// :: error: (assignment.type.incompatible)
obj4 = method7();
// :: error: (assignment.type.incompatible)
obj5 = method7();
// :: error: (assignment.type.incompatible)
obj6 = method7();
// :: error: (assignment.type.incompatible)
obj7 = method7();
// :: error: (assignment.type.incompatible)
obj8 = method7();
}
/*
* Call to method 8 that returns Object @Nullable [] @Nullable [] @Nullable [].
*/
void callTomethod8() {
obj1 = method8();
// :: error: (assignment.type.incompatible)
obj2 = method8();
// :: error: (assignment.type.incompatible)
obj3 = method8();
// :: error: (assignment.type.incompatible)
obj4 = method8();
// :: error: (assignment.type.incompatible)
obj5 = method8();
// :: error: (assignment.type.incompatible)
obj6 = method8();
// :: error: (assignment.type.incompatible)
obj7 = method8();
// :: error: (assignment.type.incompatible)
obj8 = method8();
}
Object[][][] method1() {
return new Object[numb][numb][numb];
};
Object @Nullable [][][] method2() {
return new Object[numb][numb][numb];
};
Object[] @Nullable [][] method3() {
return new Object[numb][numb][numb];
};
Object[][] @Nullable [] method4() {
return new Object[numb][numb][numb];
};
Object @Nullable [] @Nullable [][] method5() {
return new Object[numb][numb][numb];
};
Object @Nullable [][] @Nullable [] method6() {
return new Object[numb][numb][numb];
};
Object[] @Nullable [] @Nullable [] method7() {
return new Object[numb][numb][numb];
};
Object @Nullable [] @Nullable [] @Nullable [] method8() {
return new Object[numb][numb][numb];
};
}
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