Examples with Compound org.jpl7.Compound used on opensource projects

Example 16 with Compound

use of org.jpl7.Compound in project packages-jpl by SWI-Prolog.

the class TestJUnit method testRef6.

public void testRef6() {
    Term nullJRef = new Compound("@", new Term[] { new Atom("null") });
    Object nullObject = nullJRef.jrefToObject();
    assertNull("@(null) .jrefToObject() yields null", nullObject);
}

Example 17 with Compound

use of org.jpl7.Compound in project packages-jpl by SWI-Prolog.

the class TestJUnit method testVariableBinding5.

public void testVariableBinding5() {
    Variable Anon = new Variable("_");
    Term lhs = new Compound("p", new Term[] { Anon, Anon });
    Term rhs = new Compound("p", new Term[] { new Atom("a"), new Atom("b") });
    Term goal = new Compound("=", new Term[] { lhs, rhs });
    assertTrue("two references to an anonymous Variable can unify with differing atoms", new Query(goal).hasSolution());
}

Example 18 with Compound

use of org.jpl7.Compound in project packages-jpl by SWI-Prolog.

the class TestJUnit method testVariableBinding4.

public void testVariableBinding4() {
    Term lhs = new Compound("p", new Term[] { new Variable("_"), new Variable("_") });
    Term rhs = new Compound("p", new Term[] { new Atom("a"), new Atom("b") });
    Term goal = new Compound("=", new Term[] { lhs, rhs });
    assertTrue("two distinct anonymous Variables can unify with distinct atoms", new Query(goal).hasSolution());
}

Example 19 with Compound

use of org.jpl7.Compound in project packages-jpl by SWI-Prolog.

the class TestJUnit method testLength1.

public void testLength1() {
    Query q5 = new Query(new Compound("length", new Term[] { new Variable("Zs"), new org.jpl7.Integer(2) }));
    Term zs = q5.oneSolution().get("Zs");
    assertTrue("length(Zs,2) binds Zs to a list of two distinct variables " + zs.toString(), zs.isListPair() && zs.arg(1).isVariable() && zs.arg(2).isListPair() && zs.arg(2).arg(1).isVariable() && zs.arg(2).arg(2).isListNil() && !zs.arg(1).name().equals(zs.arg(2).arg(1).name()));
}

Example 20 with Compound

use of org.jpl7.Compound in project packages-jpl by SWI-Prolog.

the class TestJUnit method testVariableBinding2.

public void testVariableBinding2() {
    Term lhs = new Compound("p", new Term[] { new Variable("X"), new Variable("X") });
    Term rhs = new Compound("p", new Term[] { new Atom("a"), new Atom("b") });
    Term goal = new Compound("=", new Term[] { lhs, rhs });
    assertFalse("two distinct Variables with same name cannot unify with distinct atoms", new Query(goal).hasSolution());
}