public ThreeWayComparison(FieldValue left, IComparisonOperand right, bool swapped
)
{
this._left = left;
this._right = right;
_swapped = swapped;
}
public override bool Equals(object other)
{
if (!base.Equals(other))
{
return(false);
}
Db4objects.Db4o.NativeQueries.Expr.Cmp.Operand.FieldValue casted = (Db4objects.Db4o.NativeQueries.Expr.Cmp.Operand.FieldValue
)other;
return(_field.Equals(casted._field));
}
public ComparisonExpression(FieldValue left, IComparisonOperand right, ComparisonOperator
op)
{
if (left == null || right == null || op == null)
{
throw new ArgumentNullException();
}
_left = left;
_right = right;
_op = op;
}
public virtual void Visit(FieldValue fieldValue)
{
var lastFieldClass = fieldValue.Field.Type;
var needConversion = lastFieldClass.IsPrimitive;
fieldValue.Parent().Accept(this);
if (_staticRoot != null)
{
_methodBuilder.LoadStaticField(fieldValue.Field);
_staticRoot = null;
return;
}
_methodBuilder.LoadField(fieldValue.Field);
Box(lastFieldClass, !_inArithmetic && needConversion);
}
public void Visit(FieldValue operand)
{
operand.Parent().Accept(this);
Type clazz = ((operand.Parent() is StaticFieldRoot) ? (Type)_value : _value.GetType
());
try
{
FieldInfo field = Reflection4.GetField(clazz, operand.FieldName());
_value = field.GetValue(_value);
}
catch (Exception exc)
{
// arg is ignored for static
Sharpen.Runtime.PrintStackTrace(exc);
}
}
public virtual void Visit(FieldValue operand)
{
operand.Parent().Accept(this);
}
private IEnumerator FieldNames(FieldValue fieldValue)
{
Collection4 coll = new Collection4();
IComparisonOperand curOp = fieldValue;
while (curOp is FieldValue)
{
FieldValue curField = (FieldValue)curOp;
coll.Prepend(curField.FieldName());
curOp = curField.Parent();
}
return coll.GetEnumerator();
}
public virtual void Visit(FieldValue operand)
{
_clazz = operand.Field.Type;
}
private IQuery Descend(FieldValue left)
{
IQuery subQuery = _query;
IEnumerator fieldNameIterator = FieldNames(left);
while (fieldNameIterator.MoveNext())
{
subQuery = subQuery.Descend((string)fieldNameIterator.Current);
}
return subQuery;
}
