public void IsConstant()
{
ConstantTerm t = new ConstantTerm();
AbstractTerm a = new ConstantTerm();
Assert.IsTrue(t.IsConstant);
Assert.IsTrue(a.IsConstant);
}
public void IsObject()
{
ConstantTerm t = new ConstantTerm();
AbstractTerm a = new ConstantTerm();
Assert.IsFalse(t.IsObject);
Assert.IsFalse(a.IsObject);
}
public void IsReference()
{
ConstantTerm t = new ConstantTerm();
AbstractTerm a = new ConstantTerm();
Assert.IsFalse(t.IsReference);
Assert.IsFalse(a.IsReference);
}
public void Bind()
{
ConstantTerm term = new ConstantTerm();
ConstantTerm term2 = new ConstantTerm();
term.Bind(term2);
Assert.AreSame(term, term.Reference());
}
public void Push_ConstantTerm()
{
AMHeap heap = new AMHeap();
ConstantTerm con = new ConstantTerm("Hello, World!");
heap.Push(con);
Assert.AreSame(con, heap.Top());
}
public void Dereference()
{
ConstantTerm term1 = new ConstantTerm();
ConstantTerm term2 = new ConstantTerm();
ConstantTerm term3 = new ConstantTerm();
term2.Bind(term3);
term1.Bind(term2);
Assert.AreSame(term1, term1.Dereference());
}
public void Pop_one_item()
{
AMHeap heap = new AMHeap();
ConstantTerm con = new ConstantTerm("ali");
heap.Push(con);
heap.Pop();
Assert.IsNull(heap.Top());
}
public void Pop_two_items()
{
AMHeap heap = new AMHeap();
ConstantTerm con = new ConstantTerm("ali");
ConstantTerm first = new ConstantTerm("foo");
heap.Push(first);
heap.Push(con);
heap.Pop();
Assert.AreSame(first, heap.Top());
}
public void Assign()
{
AbstractTerm term = new AbstractTerm();
ConstantTerm con = new ConstantTerm("ali");
term.Assign(con);
Assert.AreSame(term.Dereference(), con);
Assert.AreSame(term.Dereference(), con.Dereference());
Assert.AreEqual(term.Data(), con.Data());
Assert.AreSame(term.Reference(), con.Reference());
Assert.IsFalse(term.IsList);
Assert.IsFalse(term.IsObject);
Assert.IsFalse(term.IsReference);
Assert.IsFalse(term.IsStructure);
Assert.IsTrue(term.IsConstant);
}
public void Unify_after_assignment()
{
AbstractTerm term = new AbstractTerm();
ConstantTerm con = new ConstantTerm("test");
term.Assign(con);
Assert.AreEqual(term.Unify(con), con.Unify(term));
}
public void Unbind()
{
AbstractTerm term = new AbstractTerm();
ConstantTerm con = new ConstantTerm("ali");
term.Assign(con);
term.Unbind();
Assert.AreNotSame(term.Reference(), con.Reference());
}
public bool Call(string predicatename, int arity, object[] args, bool more)
{
AMProgram program = (AMProgram)_program;
AMHeap heap = (AMHeap)_dataArea;
AMInstructionSet iset = new AMInstructionSet();
// argument indexes
ArrayList argumentIndexes = new ArrayList();
if (!more)
{
_passedVariables = new ArrayList();
}
for (int i = 0; i < args.Length; i++)
{
if (args[i] != null)
{
switch (args[i].GetType().ToString())
{
case "System.String":
case "System.Int32":
case "System.Boolean":
if (!more)
{
AbstractTerm var = new ConstantTerm(args[i].ToString());
heap.Push(var);
_passedVariables.Add(-1);
AbstractTerm Xn = (AbstractTerm)this["X" + i];
Xn.Assign(var);
}
break;
case "Axiom.Runtime.AbstractTerm":
if (!more)
{
AbstractTerm heapVariable = new AbstractTerm();
heap.Push(heapVariable);
_passedVariables.Add(heapVariable);
AbstractTerm Xn = (AbstractTerm)this["X" + i];
Xn.Assign(heapVariable);
}
break;
}
}
}
if (!more)
{
program.P = new ProgramNode(iset.CreateInstruction("call", predicatename, arity.ToString()));
program.AddProgramNode(program.P);
program.AddInstruction(iset.CreateInstruction("halt"));
}
// Execute the program
Transition();
for (int i = 0; i < _passedVariables.Count; i++)
{
if (!(_passedVariables[i] is int))
{
AbstractTerm v = (AbstractTerm)_passedVariables[i];
AbstractTerm argumentVariable = (AbstractTerm)args[i];
argumentVariable.Assign(v.Dereference());
}
}
return(!_fail);
}
public void IsStructure()
{
ConstantTerm t = new ConstantTerm();
AbstractTerm a = new ConstantTerm();
Assert.IsFalse(t.IsStructure);
Assert.IsFalse(a.IsStructure);
}
public bool Call(string predicatename, int arity, object[] args, bool more)
{
AMProgram program = (AMProgram)_program;
AMHeap heap = (AMHeap)_dataArea;
AMInstructionSet iset = new AMInstructionSet();
// argument indexes
ArrayList argumentIndexes = new ArrayList();
if (!more)
{
_passedVariables = new ArrayList();
}
for (int i = 0; i < args.Length; i++)
{
if (args[i] != null)
{
switch (args[i].GetType().ToString())
{
case "System.String":
case "System.Int32":
case "System.Boolean":
if (!more)
{
AbstractTerm var = new ConstantTerm(args[i].ToString());
heap.Push(var);
_passedVariables.Add(-1);
AbstractTerm Xn = (AbstractTerm)this["X" + i];
Xn.Assign(var);
}
break;
case "Axiom.Runtime.AbstractTerm":
if (!more)
{
AbstractTerm heapVariable = new AbstractTerm();
heap.Push(heapVariable);
_passedVariables.Add(heapVariable);
AbstractTerm Xn = (AbstractTerm)this["X" + i];
Xn.Assign(heapVariable);
}
break;
}
}
}
if (!more)
{
program.P = new ProgramNode(iset.CreateInstruction("call", predicatename, arity.ToString()));
program.AddProgramNode(program.P);
program.AddInstruction(iset.CreateInstruction("halt"));
}
// Execute the program
Transition();
for (int i = 0; i < _passedVariables.Count; i++)
{
if (!(_passedVariables[i] is int))
{
AbstractTerm v = (AbstractTerm)_passedVariables[i];
AbstractTerm argumentVariable = (AbstractTerm)args[i];
argumentVariable.Assign(v.Dereference());
}
}
return !_fail;
}
public void Unify_lis_con()
{
ListTerm list = new ListTerm();
ConstantTerm con = new ConstantTerm();
Assert.IsFalse(list.Unify(con));
}
public void Unify_con_lis()
{
ConstantTerm con = new ConstantTerm("ali");
ListTerm term = new ListTerm();
Assert.IsFalse(con.Unify(term));
}
private bool InvokeMethod(AbstractTerm obj, AbstractTerm method, AbstractTerm returnObject, AbstractMachineState state)
{
if (obj.IsConstant)
{
// invoke a static method
Assembly asm = GetRequiredAssembly(obj.Data() as string, state);
Type type = asm.GetType(obj.Data() as string);
if (type == null)
{
return false;
}
ArrayList paramArray = new ArrayList();
GetTypes(type.GetMethod(method.Data() as string), method, ref paramArray, obj);
object[] arguments = paramArray.ToArray();
object res = type.InvokeMember(method.Data() as string, BindingFlags.Static | BindingFlags.Public | BindingFlags.InvokeMethod, null, null, arguments);
switch (res.GetType().ToString())
{
case "System.Char":
case "System.String":
case "System.Int32":
case "System.Boolean":
returnObject.Assign(new ConstantTerm(res.ToString()));
break;
default:
returnObject.Assign(new ObjectTerm(res));
break;
}
SetTypes(method, arguments);
}
else
{
// invoke an instance method
ArrayList paramArray = new ArrayList();
GetTypes(obj.Data().GetType().GetMethod(method.Data() as string), method, ref paramArray, obj);
object classObject = obj.Data();
MethodInfo omi = classObject.GetType().GetMethod(method.Data() as string);
object[] arguments = paramArray.ToArray();
object res = obj.Data().GetType().InvokeMember(method.Data() as string, BindingFlags.Default | BindingFlags.ExactBinding | BindingFlags.InvokeMethod, null, obj.Data(), arguments);
if (res != null)
{
switch (res.GetType().ToString())
{
case "System.String":
ConstantTerm rC = new ConstantTerm(res.ToString());
if (!returnObject.Unify(rC))
{
return false;
}
break;
case "System.Char":
case "System.Int32":
case "System.Boolean":
ConstantTerm returnConstant = new ConstantTerm(res.ToString());
if (!returnObject.Unify(returnConstant))
{
return false;
}
break;
default:
returnObject.Assign(new ObjectTerm(res));
break;
}
}
SetTypes(method, arguments);
}
return true;
}
public void Data()
{
ConstantTerm t = new ConstantTerm();
Assert.IsNull(t.Data());
}
public void UnifyLocalValue()
{
AbstractMachineState state = SetupMachine();
UnifyLocalValueInstruction i = new UnifyLocalValueInstruction();
ConstantTerm con = new ConstantTerm("ali");
state.S = con;
object[] args = { "X0" };
i.Process(args);
i.Execute(state);
Assert.AreEqual("unify_local_value", i.Name());
Assert.AreEqual(1, i.NumberOfArguments());
AbstractTerm X0 = (AbstractTerm)state["X0"];
Assert.AreEqual("ali", X0.Dereference().Data());
}
public void Unify_con_str()
{
ConstantTerm con = new ConstantTerm("ali");
StructureTerm term = new StructureTerm("samir", 2);
Assert.IsFalse(con.Unify(term));
}
public void Unify_con_ref()
{
AbstractTerm term = new AbstractTerm();
ConstantTerm con = new ConstantTerm("ali");
Assert.IsTrue(con.Unify(term));
Assert.AreSame(term.Data(), con.Data());
}
public void Unify_con_ne_con()
{
ConstantTerm con = new ConstantTerm("ali");
ConstantTerm term = new ConstantTerm("samir");
Assert.IsFalse(con.Unify(term));
}
public void Unify_ref_con()
{
AbstractTerm term = new AbstractTerm();
ConstantTerm con = new ConstantTerm();
Assert.IsTrue(term.Unify(con));
Assert.AreEqual(term.Data(), con.Data());
Assert.AreSame(term.Reference(), con.Reference());
Assert.IsTrue(term.IsConstant);
Assert.IsFalse(term.IsReference);
}
public void Unify_str_con()
{
ConstantTerm term = new ConstantTerm("ali");
StructureTerm s = new StructureTerm("s", 2);
Assert.IsFalse(s.Unify(term));
}
public void Unify_con_eq_con()
{
ConstantTerm con = new ConstantTerm("ali");
ConstantTerm term = new ConstantTerm("ali");
Assert.IsTrue(con.Unify(term));
}
public bool Getproperty(AbstractTerm obj, AbstractTerm method, AbstractTerm returnObject)
{
if (obj.IsConstant)
{
// invoke a static get property
Assembly asm = GetRequiredAssembly(obj.Data() as string, runtime); ;
Type type = asm.GetType(obj.Data() as string);
if (type == null)
{
return false;
}
if (type.GetProperty(method.Data() as string) == null)
{
return false;
}
object res = type.InvokeMember(method.Data() as string, BindingFlags.GetProperty | BindingFlags.Static | BindingFlags.Public, null, null, null);
switch (res.GetType().ToString())
{
case "System.String":
AbstractTerm rC = new ConstantTerm(res.ToString());
if (!returnObject.Unify(rC))
{
return false;
}
break;
case "System.Char":
case "System.Int32":
case "System.Boolean":
AbstractTerm returnConstant = new ConstantTerm(res.ToString());
if (!returnObject.Unify(returnConstant))
{
return false;
}
break;
default:
returnObject.Unify(new ObjectTerm(res));
break;
}
}
else
{
if (obj.Data().GetType().GetProperty(method.Data() as string) == null)
{
return false;
}
// invoke an instance get property
object res = obj.Data().GetType().InvokeMember(method.Data() as string, BindingFlags.Default | BindingFlags.ExactBinding | BindingFlags.GetProperty, null, obj.Data(), null);
switch (res.GetType().ToString())
{
case "System.Char":
case "System.String":
case "System.Int32":
case "System.Boolean":
returnObject.Unify(new ConstantTerm(res.ToString()));
break;
default:
returnObject.Unify(new ObjectTerm(res));
break;
}
}
return true;
}
public void ConstantTerm()
{
ConstantTerm c = new ConstantTerm("Ali");
Assert.AreEqual("Ali", c.Data());
}
