/** This method selects the component of this value. The component is specified by path. */
public final Value select(Value[] path) {
Value result = this;
for (int i = 0; i < path.length; i++) {
if (!(result instanceof Applicable)) {
Assert.fail(
"Attempted to apply EXCEPT construct to the value " + ppr(result.toString()) + ".");
}
Value elem = path[i];
result = ((Applicable) result).select(elem);
if (result == null) return null;
}
return result;
}
public final boolean member(Value elem) {
Assert.fail(
"Attempted to check if the value:\n" + elem == null
? "null"
: ppr(elem.toString()) + "\nis an element of operator " + this.toString());
return false; // make compiler happy
}
/**
* This method returns the value permuted by the permutation. It returns this if nothing is
* permuted.
*/
public Value permute(MVPerm perm) {
Assert.fail(
"TLC has found a state in which the value of a variable contains "
+ Value.ppr(this.toString())); // SZ Feb 24, 2009: changed to static access
return null; // make compiler happy
}
/* This method returns the fingerprint of this value. */
public long fingerPrint(long fp) {
Assert.fail(
"TLC has found a state in which the value of a variable contains "
+ Value.ppr(this.toString())); // SZ Feb 24, 2009: changed to static access
return 0; // make compiler happy
}