internal override Expression Visit(Expression expr)
{
if (expr == null)
{
return(expr);
}
if (HpcLinqExpression.IsConstant(expr))
{
object val = ExpressionSimplifier.Evaluate(expr);
if (val is IQueryable)
{
QueryNodeInfo nodeInfo;
if (this.m_referencedQueryMap.TryGetValue(((IQueryable)val).Expression, out nodeInfo))
{
string name = "side__" + this.m_idx;
this.m_idx++;
this.m_referencedQueries.Add(new Pair <string, DryadQueryNode>(name, nodeInfo.queryNode));
return(Expression.Parameter(expr.Type, name));
}
throw new DryadLinqException(HpcLinqErrorCode.UnhandledQuery,
String.Format(SR.UnhandledQuery, HpcLinqExpression.Summarize(expr)));
}
return(expr);
}
return(base.Visit(expr));
}
internal override Expression Visit(Expression expr)
{
if (expr == null)
{
return(expr);
}
if (HpcLinqExpression.IsConstant(expr))
{
object val = ExpressionSimplifier.Evaluate(expr);
if (val is IQueryable)
{
this.m_querySet.Add(((IQueryable)val).Expression);
}
return(expr);
}
return(base.Visit(expr));
}