internal override Expression Visit(Expression exp)
{
if (exp != null)
{
if (!_funcletizer._linqExpressionStack.Add(exp))
{
// This expression is already in the stack.
throw EntityUtil.InvalidOperation(Strings.ELinq_CycleDetected);
}
try
{
if (_isClientConstant(exp))
{
return(InlineValue(exp, false));
}
else if (_isClientVariable(exp))
{
TypeUsage queryParameterType;
if (_funcletizer.TryGetTypeUsageForTerminal(exp.Type, out queryParameterType))
{
DbParameterReferenceExpression parameterReference = queryParameterType.Parameter(_funcletizer.GenerateParameterName());
return(new QueryParameterExpression(parameterReference, exp, _funcletizer._compiledQueryParameters));
}
else if (_funcletizer.IsCompiledQuery)
{
throw InvalidCompiledQueryParameterException(exp);
}
else
{
return(InlineValue(exp, true));
}
}
return(base.Visit(exp));
}
finally
{
_funcletizer._linqExpressionStack.Remove(exp);
}
}
return(base.Visit(exp));
}
