public virtual bool Visit(Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression e)
{
if (filter == null || filter.Accept(e))
{
expressions.Add(e);
}
return(true);
}
private void FindExpressionsList <T>(Net.Vpc.Upa.Impl.Uql.CompiledExpressionFilter filter, System.Collections.Generic.IList <T> list) where T : Net.Vpc.Upa.Expressions.CompiledExpression
{
if (filter.Accept(this))
{
//this double casting is needed in C#
list.Add((T)(object)this);
}
Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression[] subExpressions = GetSubExpressions();
if (subExpressions != null)
{
foreach (Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression subExpression in subExpressions)
{
if (subExpression != null)
{
((Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpressionImpl)subExpression).FindExpressionsList <T>(filter, list);
}
}
}
}
public virtual T FindFirstExpression <T>(Net.Vpc.Upa.Impl.Uql.CompiledExpressionFilter filter) where T : Net.Vpc.Upa.Expressions.CompiledExpression
{
if (filter.Accept(this))
{
//this double casting is needed in C#
return((T)(object)this);
}
Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression[] subExpressions = GetSubExpressions();
if (subExpressions != null)
{
foreach (Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression subExpression in subExpressions)
{
if (subExpression != null)
{
Net.Vpc.Upa.Expressions.CompiledExpression e = ((Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpressionImpl)subExpression).FindFirstExpression <T>(filter);
if (e != null)
{
return((T)e);
}
}
}
}
return(default(T));
}
public virtual Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression ReplaceExpressions(Net.Vpc.Upa.Impl.Uql.CompiledExpressionFilter filter, Net.Vpc.Upa.Impl.Uql.CompiledExpressionReplacer replacer)
{
Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression t = (Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression)((filter == null || filter.Accept(this)) ? replacer.Update(this) : null);
bool updated = false;
if (t != null)
{
updated = true;
}
else
{
t = this;
}
if (!updated)
{
System.Collections.Generic.IList <Net.Vpc.Upa.Impl.Uql.Compiledexpression.ReplacementPosition> replacementPositions = new System.Collections.Generic.List <Net.Vpc.Upa.Impl.Uql.Compiledexpression.ReplacementPosition>();
int i = 0;
Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression[] subExpressions = t.GetSubExpressions();
if (subExpressions != null)
{
foreach (Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression expression in subExpressions)
{
replacementPositions.Add(new Net.Vpc.Upa.Impl.Uql.Compiledexpression.ReplacementPosition(t, expression, i));
i++;
}
}
foreach (Net.Vpc.Upa.Impl.Uql.Compiledexpression.ReplacementPosition r in replacementPositions)
{
if (r.GetChild() == null)
{
}
else
{
Net.Vpc.Upa.Impl.Uql.Compiledexpression.DefaultCompiledExpression c = r.GetChild().ReplaceExpressions(filter, replacer);
if (c != null)
{
int pos = r.GetPos();
// if (!updated) {
// t = t.copy();
// }
if (subExpressions[pos] != c)
{
subExpressions[pos].SetParentExpression(null);
t.SetSubExpression(pos, c);
}
updated = true;
}
}
}
}
if (updated)
{
return(t);
}
return(null);
}