public override void Visit(DbTreatExpression expression)
{
Write(expression);
_depth++;
Write("Argument", expression.Argument);
_depth--;
}
public override Expression Visit(DbTreatExpression expression)
{
throw new NotImplementedException(
string.Format(
ExceptionMessages.DbExpressionTransformationNotImplemented,
typeof(DbTreatExpression).Name));
}
public override Expression Visit(DbTreatExpression expression)
{
throw new NotImplementedException(
string.Format(
ExceptionMessages.DbExpressionTransformationNotImplemented,
typeof(DbTreatExpression).Name));
}
public override void Visit(DbTreatExpression e)
{
Check.NotNull(e, "e");
BeginUnary(e);
End(e);
}
/// <summary>
/// Implements the visitor pattern for <see cref="T:System.Data.Common.CommandTrees.DbTreatExpression"/>.
/// </summary>
/// <param name="expression">The <see cref="T:System.Data.Common.CommandTrees.DbTreatExpression"/> that is visited.</param>
public override void Visit(DbTreatExpression expression)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
expression.Argument.Accept(this);
}
/// <summary>
/// Implements the visitor pattern for <see cref="T:System.Data.Common.CommandTrees.DbTreatExpression"/>.
/// </summary>
/// <param name="expression">The <see cref="T:System.Data.Common.CommandTrees.DbTreatExpression"/> that is visited.</param>
public override void Visit(DbTreatExpression expression)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
expression.Argument.Accept(this);
}
/// <summary>
/// Evaluates treat expression given a result for the argument to the treat.
/// </summary>
/// <param name="node"> Treat expression </param>
/// <returns> Null if the argument is of the given type, the argument otherwise </returns>
public override PropagatorResult Visit(DbTreatExpression node)
{
Check.NotNull(node, "node");
var childResult = Visit(node.Argument);
var nodeType = node.ResultType;
if (MetadataHelper.IsSuperTypeOf(nodeType.EdmType, childResult.StructuralType))
{
// Doing an up cast is not required because all property/ordinal
// accesses are unaffected for more derived types (derived members
// are appended)
return(childResult);
}
// "Treat" where the result does not implement the given type results in a null
// result
var result = PropagatorResult.CreateSimpleValue(childResult.PropagatorFlags, null);
return(result);
}
/// <summary>
/// Visitor pattern method for <see cref="DbTreatExpression" />.
/// </summary>
/// <param name="expression"> The DbTreatExpression that is being visited. </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="expression" />
/// is null
/// </exception>
public override void Visit(DbTreatExpression expression)
{
Check.NotNull(expression, "expression");
VisitUnaryExpression(expression);
}
public override TreeNode Visit(DbTreatExpression e)
{
Check.NotNull <DbTreatExpression>(e, nameof(e));
return(this.VisitCastOrTreat("Treat", (DbUnaryExpression)e));
}
public override void Visit(DbTreatExpression e)
{
VisitCastOrTreat(e);
}
public override object Visit(DbTreatExpression expression)
{
this.Visit(expression.Argument);
return(null);
}
public override LegacyCommandTrees.DbExpression Visit(DbTreatExpression expression)
{
throw new NotImplementedException();
}
public override bool Visit(DbTreatExpression expression)
{
Check.NotNull <DbTreatExpression>(expression, nameof(expression));
return(this.VisitUnaryExpression((DbUnaryExpression)expression));
}
public override TReturn Visit(DbTreatExpression expression)
{
Check.NotNull(expression, "expression");
throw ConstructNotSupportedException(expression);
}
public override ViewValidator.DbExpressionEntitySetInfo Visit(
DbTreatExpression expression)
{
Check.NotNull <DbTreatExpression>(expression, nameof(expression));
return((ViewValidator.DbExpressionEntitySetInfo)null);
}
/// <summary> /// Typed visitor pattern method for DbTreatExpression. /// </summary> /// <param name="expression"> The DbTreatExpression that is being visited. </param> /// <returns> An instance of TResultType. </returns> public abstract TResultType Visit(DbTreatExpression expression);
public override void Visit(DbTreatExpression expression) { }
public override void Visit(DbTreatExpression e)
{
Check.NotNull <DbTreatExpression>(e, nameof(e));
this.VisitCastOrTreat((DbUnaryExpression)e);
}
public override DbExpression Visit(DbTreatExpression expression)
{
System.Diagnostics.Debug.Print("Visit(DbTreatExpression): {0}", expression);
return base.Visit(expression);
}
public override TReturn Visit(DbTreatExpression expression)
{
Check.NotNull <DbTreatExpression>(expression, nameof(expression));
throw this.ConstructNotSupportedException((DbExpression)expression);
}
public override TreeNode Visit(DbTreatExpression e)
{
return(VisitCastOrTreat("Treat", e));
}
public override void Visit(DbTreatExpression expression)
{
VisitUnaryExpression(expression);
}
public override VfpExpression Visit(DbTreatExpression expression)
{
return(new VfpTreatExpression(expression.ResultType, expression.Argument.Accept(this)));
}
public override void Visit(DbTreatExpression expression)
{
this.VisitUnaryExpression((DbUnaryExpression)expression);
}
public override DbExpressionEntitySetInfo Visit(DbTreatExpression expression)
{
Check.NotNull(expression, "expression");
return(null);
}
public override void Visit(DbTreatExpression e)
{
Check.NotNull(e, "e");
VisitCastOrTreat(e);
}
/// <summary> /// Visitor pattern method for DbTreatExpression. /// </summary> /// <param name="expression"> The DbTreatExpression that is being visited. </param> public abstract void Visit(DbTreatExpression expression);
public override DbExpression Visit(DbTreatExpression expression)
{
System.Diagnostics.Debug.Print("Visit(DbTreatExpression): {0}", expression);
return(base.Visit(expression));
}
public override void Visit(DbTreatExpression e)
{
BeginUnary(e);
End(e);
}
public override void Visit(DbTreatExpression expression)
{
throw new NotSupportedException("Visit(\"DbTreatExpression\") is not supported.");
}
public override bool Visit(DbTreatExpression expression)
{
return(VisitUnaryExpression(expression));
}
public override void Visit(DbTreatExpression expression)
{
throw new NotSupportedException("Visit(\"TreatExpression\") is not supported.");
}
public override void Visit(DbTreatExpression e)
{
Check.NotNull(e, "e");
BeginUnary(e);
End(e);
}
public override void Visit(DbTreatExpression expression)
{
VisitUnaryExpression(expression);
}
public override TreeNode Visit(DbTreatExpression e)
{
Check.NotNull(e, "e");
return(VisitCastOrTreat("Treat", e));
}
public override void Visit(DbTreatExpression e)
{
VisitCastOrTreat(e);
}
/// <summary> /// Visitor pattern method for DbTreatExpression. /// </summary> /// <param name="expression"> The DbTreatExpression that is being visited. </param> public abstract void Visit(DbTreatExpression expression);
public override ISqlFragment Visit(DbTreatExpression e)
{
throw new NotSupportedException();
}
public override void Visit(DbTreatExpression expression)
{
Contract.Requires(expression != null);
}
public override void Visit(DbTreatExpression e)
{
Check.NotNull(e, "e");
VisitCastOrTreat(e);
}
/// <summary>
/// <see cref="VisitUnaryExpression" />
/// </summary>
/// <param name="expression"> The DbTreatExpression that is being visited. </param>
/// <returns> </returns>
public override bool Visit(DbTreatExpression expression)
{
Check.NotNull(expression, "expression");
return(VisitUnaryExpression(expression));
}
public override DbExpressionEntitySetInfo Visit(DbTreatExpression expression)
{
return(null);
}
public override TReturn Visit(DbTreatExpression expression)
{
throw ConstructNotSupportedException(expression);
}
