void ConditionGroup(SingleNodeTree parent)
{
ConditionGroup group = new ConditionGroup(); parent.SetChild(group); ExpressionTreeBase addTo = group; SingleNodeTree condition = null; ConditionalExpression lastOperation = null;
Expect(6);
while (StartOf(2))
{
lastOperation = lastOperation ?? new AndCondition();
MultiAdd(addTo, lastOperation);
addTo = lastOperation;
if (la.kind == 5)
{
Get();
NotCondition not = new NotCondition(); lastOperation.SetChild(not); lastOperation = not;
}
if (StartOf(3))
{
Condition(lastOperation);
}
else if (la.kind == 6)
{
ConditionGroup(lastOperation);
}
else
{
SynErr(47);
}
if (la.kind == 9 || la.kind == 10)
{
Operation(out lastOperation);
}
else
{
lastOperation = null;
}
}
if (lastOperation != null && lastOperation.Child == null)
{
SemErr("Invalid Condition");
}
Expect(7);
}
void ComplexCondition(SingleNodeTree parent, SelectorExpression selector)
{
ConditionGroup group = new ConditionGroup(); parent.SetChild(group); ExpressionTreeBase addTo = group; SingleNodeTree condition = null; ConditionalExpression lastOperation = null;
Expect(6);
while (StartOf(2))
{
lastOperation = lastOperation ?? new AndCondition();
MultiAdd(addTo, lastOperation);
addTo = lastOperation;
selector = new SelectorExpression(selector.Field, ModifierTypes.Equals, selector.Path);
if (la.kind == 5)
{
Get();
NotCondition not = new NotCondition(); lastOperation.SetChild(not); lastOperation = not;
}
if (la.kind == 6)
{
ComplexCondition(lastOperation, selector);
}
else if (StartOf(3))
{
SelectorExpression nestedSelector = new SelectorExpression(selector.Field, ModifierTypes.Equals, selector.Path); MultiAdd(lastOperation, nestedSelector);
Literal(nestedSelector);
}
else
{
SynErr(49);
}
if (la.kind == 9 || la.kind == 10)
{
Operation(out lastOperation);
}
else
{
lastOperation = null;
}
}
Expect(7);
}