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import java.util.Comparator;
public class Heuristics implements Comparable<Heuristics> {
public static final class MyComparator implements Comparator<String> {
// Using == is OK if it's the first statement in the compare method,
// it's comparing the arguments, and the return value is 0.
public int compare(String s1, String s2) {
if (s1 == s2) {
return 0;
}
return String.CASE_INSENSITIVE_ORDER.compare(s1, s2);
}
}
@Override
@org.checkerframework.dataflow.qual.Pure
public boolean equals(Object o) {
// Using == is OK if it's the first statement in the equals method
// and it compares "this" against the argument.
if (this == o) {
return true;
}
// Not the first statement in the method.
// :: error: (not.interned)
if (o == this) {
return true;
}
return false;
}
@Override
@org.checkerframework.dataflow.qual.Pure
public int compareTo(Heuristics o) {
// Using == is OK if it's the first statement in the equals method
// and it compares "this" against the argument.
if (o == this) {
return 0;
}
// Not the first statement in the method.
// :: error: (not.interned)
if (this == o) {
return 0;
}
return 0;
}
public boolean optimizeEqualsClient(Object a, Object b, Object[] arr) {
// Using == is OK if it's the left-hand side of an || whose right-hand
// side is a call to equals with the same arguments.
if (a == b || a.equals(b)) {
System.out.println("one");
}
if (a == b || b.equals(a)) {
System.out.println("two");
}
boolean c = (a == b || a.equals(b));
c = (a == b || b.equals(a));
boolean d = (a == b) || (a != null ? a.equals(b) : false);
boolean e = (a == b || (a != null && a.equals(b)));
boolean f = (arr[0] == a || arr[0].equals(a));
return (a == b || a.equals(b));
}
public <T extends Comparable<T>> boolean optimizeCompareToClient(T a, T b) {
// Using == is OK if it's the left-hand side of an || whose right-hand
// side is a call to compareTo with the same arguments.
if (a == b || a.compareTo(b) == 0) {
System.out.println("one");
}
if (a == b || b.compareTo(a) == 0) {
System.out.println("two");
}
boolean c = (a == b || a.compareTo(b) == 0);
c = (a == b || a.compareTo(b) == 0);
return (a == b || a.compareTo(b) == 0);
}
}
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