protected override Expression VisitMethodCall(MethodCallExpression mc)
{
if (mc.AsTupleAccess() != null)
{
var sourceIndex = mc.GetTupleAccessArgument();
if (mc.GetApplyParameter() != null)
{
return(Expression.Call(leftTupleParameter, mc.Method, mc.Arguments[0]));
}
var name = sourceColumns.Single(column => column.Index == sourceIndex).Name;
var currentIndex = targetColumns[name].Index;
return(Expression.Call(mc.Object, mc.Method, Expression.Constant(currentIndex)));
}
return(base.VisitMethodCall(mc));
}
protected override SqlExpression VisitMethodCall(MethodCallExpression mc)
{
if (mc.AsTupleAccess(activeParameters) != null)
{
return(VisitTupleAccess(mc));
}
var arguments = mc.Arguments.Select(a => Visit(a)).ToArray();
var mi = mc.Method;
if (mc.Object != null && mc.Object.Type != mi.ReflectedType)
{
mi = mc.Object.Type.GetMethod(mi.Name, mi.GetParameterTypes());
}
return(CompileMember(mi, Visit(mc.Object), arguments));
}
protected override Expression VisitMethodCall(MethodCallExpression mc)
{
if (mc.AsTupleAccess() != null)
{
var applyParameter = mc.GetApplyParameter();
if (result == null)
{
result = applyParameter;
}
else if (applyParameter != null && result != applyParameter)
{
throw new InvalidOperationException(Strings.ExPredicateContainsAccessesToDifferentApplyParameters);
}
return(mc);
}
return(base.VisitMethodCall(mc));
}
protected override Expression VisitMethodCall(MethodCallExpression mc)
{
var tupleAccess = mc.AsTupleAccess();
if (tupleAccess == null)
{
return(base.VisitMethodCall(mc));
}
var memberExpression = tupleAccess.Object as MemberExpression;
if (memberExpression != null &&
memberExpression.Member == WellKnownMembers.ApplyParameterValue &&
memberExpression.Expression.NodeType == ExpressionType.Constant &&
((ConstantExpression)memberExpression.Expression).Value == applyParameter)
{
var index = (int)((ConstantExpression)tupleAccess.Arguments[0]).Value;
return(processor.Invoke(mc, index));
}
return(base.VisitMethodCall(mc));
}