import org.checkerframework.checker.nullness.qual.*;
import org.checkerframework.checker.nullness.qual.EnsuresNonNullIf;

/*
 * These tests ensure that EnsuresNonNullIf methods
 * are verified.
 */
public class AssertIfTrueTestSimple {

    protected int @Nullable [] values;

    @EnsuresNonNullIf(result = true, expression = "values")
    public boolean repNulledBAD() {
        //:: error: (contracts.conditional.postcondition.not.satisfied)
        return values == null;
    }

    @EnsuresNonNullIf(result = false, expression = "values")
    public boolean repNulled() {
        return values == null;
    }

    public void addAll(AssertIfTrueTestSimple s) {
        if (repNulled()) {
            return;
        }
        @NonNull Object x = values;

        /* TODO skip-tests
         * The two errors are not raised currently
         * The assumption that "values" is NN is added above.
         * However, as repNulled is not pure, it should be removed again here.
        if (s.repNulled()) {
            // :: (dereference.of.nullable)
            values.hashCode();
        } else {
            // we called on "s", so we don't know anything about "values".
            // :: (assignment.type.incompatible)
            @NonNull Object y = values;
        }
        */

        if (s.repNulled()) {
            //:: error: (dereference.of.nullable)
            s.values.hashCode();
        } else {
            @NonNull Object y = s.values;
        }
    }
}