private Expression BindConstantQueryNode(ConstantQueryNode constantNode)
{
Contract.Assert(constantNode != null);
if (constantNode.Value == null)
{
return(_nullConstant);
}
return(Expression.Constant(constantNode.Value, EdmLibHelpers.GetClrType(constantNode.TypeReference, _model, _assembliesResolver)));
}
/// <summary>
/// Translates a constant node.
/// </summary>
/// <param name="constantNode">The constant node to translate.</param>
/// <returns>The translated expression which evaluates to the constant value.</returns>
protected virtual Expression TranslateConstant(ConstantQueryNode constantNode)
{
ExceptionUtils.CheckArgumentNotNull(constantNode, "constantNode");
if (constantNode.TypeReference == null)
{
Debug.Assert(constantNode.Value == null, "constantNode.Value == null");
return nullLiteralExpression;
}
else
{
if (!constantNode.TypeReference.IsODataPrimitiveTypeKind())
{
throw new ODataException(Strings.QueryExpressionTranslator_ConstantNonPrimitive(constantNode.TypeReference.ODataFullName()));
}
return Expression.Constant(constantNode.Value, constantNode.TypeReference.GetInstanceType(this.model));
}
}
/// <summary>
/// Translates a constant node.
/// </summary>
/// <param name="constantNode">The constant node to translate.</param>
/// <returns>The translated expression which evaluates to the constant value.</returns>
protected virtual Expression TranslateConstant(ConstantQueryNode constantNode)
{
ExceptionUtils.CheckArgumentNotNull(constantNode, "constantNode");
if (constantNode.ResourceType == null)
{
Debug.Assert(constantNode.Value == null, "constantNode.Value == null");
return nullLiteralExpression;
}
else
{
if (constantNode.ResourceType.ResourceTypeKind != ResourceTypeKind.Primitive)
{
throw new ODataException(Strings.QueryExpressionTranslator_ConstantNonPrimitive(constantNode.ResourceType.FullName));
}
return Expression.Constant(constantNode.Value, constantNode.ResourceType.InstanceType);
}
}
private object ProcessConstant(ConstantQueryNode constNode)
{
return constNode == null ? null : constNode.Value;
}
private object ProcessConstant(ConstantQueryNode constNode)
{
return(constNode == null ? null : constNode.Value);
}
