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/*
 * @test
 * @summary Test basic verifier assignability of value types.
 * @compile -XDallowWithFieldOperator -XDemitQtypes VTAssignability.java
 * @run main/othervm -Xverify:remote -XX:+EnableValhalla VTAssignability
 */

// Test that a value type is assignable to itself, to java.lang.Object,
// and to an interface,
//
interface II { }

public value final class VTAssignability implements II {
    final int x;
    final int y;

    private VTAssignability() {
        x = 0;
        y = 0;
    }

    public int getX() { return x; }
    public int getY() { return y; }

    public boolean isSameVTAssignability(VTAssignability that) {
        return this.getX() == that.getX() && this.getY() == that.getY();
    }

    public boolean equals(Object o) {
        if(o instanceof VTAssignability) {
            return ((VTAssignability)o).x == x &&  ((VTAssignability)o).y == y;
        } else {
            return false;
        }
    }

    public void takesInterface(II i) {
        System.out.println("Test passes!!");
    }

    public static VTAssignability createVTAssignability(int x, int y) {
        VTAssignability p = VTAssignability.default;
        p = __WithField(p.x, x);
        p = __WithField(p.y, y);
        return p;
    }

    public static void main(String[] args) {
        VTAssignability a = createVTAssignability(3, 4);
        VTAssignability b = createVTAssignability(2, 4);

        // Test assignability of a value type to itself.
        boolean res = a.isSameVTAssignability(b);

        // Test assignability of a value type to java.lang.Object.
        res = b.equals(a);

        // Test assignability of a value type to an interface.
        a.takesInterface(b);
    }
}