public void PrimitiveTypesOfSameKindCanConvertToEachOther()
{
var stringType = new EdmStringTypeReference(EdmCoreModel.Instance.GetPrimitiveType(EdmPrimitiveTypeKind.String), true);
var primitiveType = new EdmPrimitiveTypeReference(EdmCoreModel.Instance.GetPrimitiveType(EdmPrimitiveTypeKind.String), true);
Assert.True(TypePromotionUtils.CanConvertTo(null, stringType, primitiveType));
Assert.True(TypePromotionUtils.CanConvertTo(null, primitiveType, stringType));
}
/// <summary>
/// If the source node is not of the specified type, then we check if type promotion is possible and inject a convert node.
/// If the source node is the same type as the target type (or if the target type is null), we just return the source node as is.
/// </summary>
/// <param name="source">The source node to apply the convertion to.</param>
/// <param name="targetTypeReference">The target primitive type. May be null - this method will do nothing in that case.</param>
/// <returns>The converted query node, or the original source node unchanged.</returns>
internal static SingleValueNode ConvertToTypeIfNeeded(SingleValueNode source, IEdmTypeReference targetTypeReference)
{
Debug.Assert(source != null, "source != null");
if (targetTypeReference == null)
{
return(source);
}
if (source.TypeReference != null)
{
if (source.TypeReference.IsEquivalentTo(targetTypeReference))
{
return(source);
}
if (!TypePromotionUtils.CanConvertTo(source, source.TypeReference, targetTypeReference))
{
throw new ODataException(ODataErrorStrings.MetadataBinder_CannotConvertToType(source.TypeReference.ODataFullName(), targetTypeReference.ODataFullName()));
}
else
{
ConstantNode constantNode = source as ConstantNode;
if (source.TypeReference.IsEnum() && constantNode != null)
{
return(new ConstantNode(constantNode.Value, ODataUriUtils.ConvertToUriLiteral(constantNode.Value, ODataVersion.V4), targetTypeReference));
}
object primitiveValue;
if (MetadataUtilsCommon.TryGetConstantNodePrimitiveLDMF(source, out primitiveValue) && (primitiveValue != null))
{
// L F D M types : directly create a ConvertNode.
// 1. NodeToExpressionTranslator.cs won't allow implicitly converting single/double to decimal, which should be done here at Node tree level.
// 2. And prevent losing precision in float -> double, e.g. (double)1.234f => 1.2339999675750732d not 1.234d
object primitiveValue2 = ODataUriConversionUtils.CoerceNumericType(primitiveValue, targetTypeReference.AsPrimitive().Definition as IEdmPrimitiveType);
if (string.IsNullOrEmpty(constantNode.LiteralText))
{
return(new ConstantNode(primitiveValue2));
}
return(new ConstantNode(primitiveValue2, constantNode.LiteralText));
}
else
{
// other type conversion : ConvertNode
return(new ConvertNode(source, targetTypeReference));
}
}
}
else
{
// If the source doesn't have a type (possibly an open property), then it's possible to convert it
// cause we don't know for sure.
return(new ConvertNode(source, targetTypeReference));
}
}
/// <summary>
/// If the source node is not of the specified type, then we check if type promotion is possible and inject a convert node.
/// If the source node is the same type as the target type (or if the target type is null), we just return the source node as is.
/// </summary>
/// <param name="source">The source node to apply the conversion to.</param>
/// <param name="targetTypeReference">The target primitive type. May be null - this method will do nothing in that case.</param>
/// <returns>The converted query node, or the original source node unchanged.</returns>
internal static SingleValueNode ConvertToTypeIfNeeded(SingleValueNode source, IEdmTypeReference targetTypeReference)
{
Debug.Assert(source != null, "source != null");
if (targetTypeReference == null)
{
return(source);
}
if (source.TypeReference != null)
{
if (source.TypeReference.IsEquivalentTo(targetTypeReference))
{
// For source is type definition, if source's underlying type == target type.
// We create a conversion node from source to its underlying type (target type)
// so that the service can convert value of source clr type to underlying clr type.
if (source.TypeReference.IsTypeDefinition())
{
return(new ConvertNode(source, targetTypeReference));
}
return(source);
}
// Structured type in url will be translated into a node with raw string value.
// We create a conversion node from string to structured type.
if (targetTypeReference.IsStructured() || targetTypeReference.IsStructuredCollectionType())
{
return(new ConvertNode(source, targetTypeReference));
}
ConstantNode constantNode = source as ConstantNode;
if (constantNode != null && constantNode.Value != null && source.TypeReference.IsString() && targetTypeReference.IsEnum())
{
string memberName = constantNode.Value.ToString();
IEdmEnumType enumType = targetTypeReference.Definition as IEdmEnumType;
if (enumType.Members.Any(m => string.Compare(m.Name, memberName, StringComparison.Ordinal) == 0))
{
string literalText = ODataUriUtils.ConvertToUriLiteral(constantNode.Value, default(ODataVersion));
return(new ConstantNode(new ODataEnumValue(constantNode.Value.ToString(), targetTypeReference.Definition.ToString()), literalText, targetTypeReference));
}
else
{
throw new ODataException(ODataErrorStrings.Binder_IsNotValidEnumConstant(memberName));
}
}
if (!TypePromotionUtils.CanConvertTo(source, source.TypeReference, targetTypeReference))
{
throw new ODataException(ODataErrorStrings.MetadataBinder_CannotConvertToType(source.TypeReference.FullName(), targetTypeReference.FullName()));
}
else
{
if (source.TypeReference.IsEnum() && constantNode != null)
{
return(new ConstantNode(constantNode.Value, ODataUriUtils.ConvertToUriLiteral(constantNode.Value, ODataVersion.V4), targetTypeReference));
}
object originalPrimitiveValue;
if (MetadataUtilsCommon.TryGetConstantNodePrimitiveLDMF(source, out originalPrimitiveValue) && (originalPrimitiveValue != null))
{
// L F D M types : directly create a ConvertNode.
// 1. NodeToExpressionTranslator.cs won't allow implicitly converting single/double to decimal, which should be done here at Node tree level.
// 2. And prevent losing precision in float -> double, e.g. (double)1.234f => 1.2339999675750732d not 1.234d
object targetPrimitiveValue = ODataUriConversionUtils.CoerceNumericType(originalPrimitiveValue, targetTypeReference.AsPrimitive().Definition as IEdmPrimitiveType);
if (string.IsNullOrEmpty(constantNode.LiteralText))
{
return(new ConstantNode(targetPrimitiveValue));
}
var candidate = new ConstantNode(targetPrimitiveValue, constantNode.LiteralText);
var decimalType = candidate.TypeReference as IEdmDecimalTypeReference;
if (decimalType != null)
{
var targetDecimalType = (IEdmDecimalTypeReference)targetTypeReference;
return(decimalType.Precision == targetDecimalType.Precision &&
decimalType.Scale == targetDecimalType.Scale ?
(SingleValueNode)candidate :
(SingleValueNode)(new ConvertNode(candidate, targetTypeReference)));
}
else
{
return(candidate);
}
}
else
{
// other type conversion : ConvertNode
return(new ConvertNode(source, targetTypeReference));
}
}
}
else
{
// If the source doesn't have a type (possibly an open property), then it's possible to convert it
// cause we don't know for sure.
return(new ConvertNode(source, targetTypeReference));
}
}
/// <summary>
/// If the source node is not of the specified type, then we check if type promotion is possible and inject a convert node.
/// If the source node is the same type as the target type (or if the target type is null), we just return the source node as is.
/// </summary>
/// <param name="source">The source node to apply the convertion to.</param>
/// <param name="targetTypeReference">The target primitive type. May be null - this method will do nothing in that case.</param>
/// <returns>The converted query node, or the original source node unchanged.</returns>
internal static SingleValueNode ConvertToTypeIfNeeded(SingleValueNode source, IEdmTypeReference targetTypeReference)
{
Debug.Assert(source != null, "source != null");
if (targetTypeReference == null)
{
return(source);
}
if (source.TypeReference != null)
{
if (source.TypeReference.IsEquivalentTo(targetTypeReference))
{
// For source is type definition, if source's underlying type == target type.
// We create a conversion node from source to its underlying type (target type)
// so that the service can convert value of source clr type to underlying clr type.
if (source.TypeReference.IsTypeDefinition())
{
return(new ConvertNode(source, targetTypeReference));
}
return(source);
}
if (!TypePromotionUtils.CanConvertTo(source, source.TypeReference, targetTypeReference))
{
throw new ODataException(ODataErrorStrings.MetadataBinder_CannotConvertToType(source.TypeReference.ODataFullName(), targetTypeReference.ODataFullName()));
}
else
{
ConstantNode constantNode = source as ConstantNode;
if (source.TypeReference.IsEnum() && constantNode != null)
{
return(new ConstantNode(constantNode.Value, ODataUriUtils.ConvertToUriLiteral(constantNode.Value, ODataVersion.V4), targetTypeReference));
}
object originalPrimitiveValue;
if (MetadataUtilsCommon.TryGetConstantNodePrimitiveDate(source, out originalPrimitiveValue) && (originalPrimitiveValue != null))
{
// DateTimeOffset -> Date when (target is Date) and (originalValue match Date format) and (ConstantNode)
object targetPrimitiveValue = ODataUriConversionUtils.CoerceTemporalType(originalPrimitiveValue, targetTypeReference.AsPrimitive().Definition as IEdmPrimitiveType);
if (targetPrimitiveValue != null)
{
if (string.IsNullOrEmpty(constantNode.LiteralText))
{
return(new ConstantNode(targetPrimitiveValue));
}
return(new ConstantNode(targetPrimitiveValue, constantNode.LiteralText, targetTypeReference));
}
}
if (MetadataUtilsCommon.TryGetConstantNodePrimitiveLDMF(source, out originalPrimitiveValue) && (originalPrimitiveValue != null))
{
// L F D M types : directly create a ConvertNode.
// 1. NodeToExpressionTranslator.cs won't allow implicitly converting single/double to decimal, which should be done here at Node tree level.
// 2. And prevent losing precision in float -> double, e.g. (double)1.234f => 1.2339999675750732d not 1.234d
object targetPrimitiveValue = ODataUriConversionUtils.CoerceNumericType(originalPrimitiveValue, targetTypeReference.AsPrimitive().Definition as IEdmPrimitiveType);
if (string.IsNullOrEmpty(constantNode.LiteralText))
{
return(new ConstantNode(targetPrimitiveValue));
}
return(new ConstantNode(targetPrimitiveValue, constantNode.LiteralText));
}
else
{
// other type conversion : ConvertNode
return(new ConvertNode(source, targetTypeReference));
}
}
}
else
{
// If the source doesn't have a type (possibly an open property), then it's possible to convert it
// cause we don't know for sure.
return(new ConvertNode(source, targetTypeReference));
}
}