/// <summary>
/// Binds a unary operator token.
/// </summary>
/// <param name="unaryOperatorToken">The unary operator token to bind.</param>
/// <returns>The bound unary operator token.</returns>
internal QueryNode BindUnaryOperator(UnaryOperatorToken unaryOperatorToken)
{
DebugUtils.CheckNoExternalCallers();
ExceptionUtils.CheckArgumentNotNull(unaryOperatorToken, "unaryOperatorToken");
SingleValueNode operand = this.GetOperandFromToken(unaryOperatorToken);
IEdmTypeReference typeReference = UnaryOperatorBinder.PromoteOperandType(operand, unaryOperatorToken.OperatorKind);
Debug.Assert(typeReference == null || typeReference.IsODataPrimitiveTypeKind(), "Only primitive types should be able to get here.");
operand = MetadataBindingUtils.ConvertToTypeIfNeeded(operand, typeReference);
return(new UnaryOperatorNode(unaryOperatorToken.OperatorKind, operand));
}
/// <summary>
/// Promote the left and right operand types
/// </summary>
/// <param name="binaryOperatorKind">the operator kind</param>
/// <param name="left">the left operand</param>
/// <param name="right">the right operand</param>
private static void PromoteOperandTypes(BinaryOperatorKind binaryOperatorKind, ref SingleValueNode left, ref SingleValueNode right)
{
IEdmTypeReference leftType = left.TypeReference;
IEdmTypeReference rightType = right.TypeReference;
if (!TypePromotionUtils.PromoteOperandTypes(binaryOperatorKind, ref leftType, ref rightType))
{
string leftTypeName = left.TypeReference == null ? "<null>" : left.TypeReference.ODataFullName();
string rightTypeName = right.TypeReference == null ? "<null>" : right.TypeReference.ODataFullName();
throw new ODataException(ODataErrorStrings.MetadataBinder_IncompatibleOperandsError(leftTypeName, rightTypeName, binaryOperatorKind));
}
left = MetadataBindingUtils.ConvertToTypeIfNeeded(left, leftType);
right = MetadataBindingUtils.ConvertToTypeIfNeeded(right, rightType);
}
/// <summary>
/// Promotes types of arguments to match signature if possible.
/// </summary>
/// <param name="signature">The signature to match the types to.</param>
/// <param name="argumentNodes">The types to promote.</param>
internal static void TypePromoteArguments(FunctionSignature signature, List <QueryNode> argumentNodes)
{
DebugUtils.CheckNoExternalCallers();
// Convert all argument nodes to the best signature argument type
Debug.Assert(signature.ArgumentTypes.Length == argumentNodes.Count, "The best signature match doesn't have the same number of arguments.");
for (int i = 0; i < argumentNodes.Count; i++)
{
Debug.Assert(argumentNodes[i] is SingleValueNode, "We should have already verified that all arguments are single values.");
SingleValueNode argumentNode = (SingleValueNode)argumentNodes[i];
IEdmTypeReference signatureArgumentType = signature.ArgumentTypes[i];
Debug.Assert(signatureArgumentType.IsODataPrimitiveTypeKind(), "Only primitive types should be able to get here.");
argumentNodes[i] = MetadataBindingUtils.ConvertToTypeIfNeeded(argumentNode, signatureArgumentType);
}
}
/// <summary>
/// Binds a key property value.
/// </summary>
/// <param name="namedValue">The named value to bind.</param>
/// <param name="collectionItemEntityType">The type of a single item in a collection to apply the key value to.</param>
/// <returns>The bound key property value node.</returns>
private KeyPropertyValue BindKeyPropertyValue(NamedValue namedValue, IEdmEntityType collectionItemEntityType)
{
// These are exception checks because the data comes directly from the potentially user specified tree.
ExceptionUtils.CheckArgumentNotNull(namedValue, "namedValue");
ExceptionUtils.CheckArgumentNotNull(namedValue.Value, "namedValue.Value");
Debug.Assert(collectionItemEntityType != null, "collectionItemType != null");
IEdmProperty keyProperty = null;
if (namedValue.Name == null)
{
foreach (IEdmProperty p in collectionItemEntityType.Key())
{
if (keyProperty == null)
{
keyProperty = p;
}
else
{
throw new ODataException(ODataErrorStrings.MetadataBinder_UnnamedKeyValueOnTypeWithMultipleKeyProperties(collectionItemEntityType.ODataFullName()));
}
}
}
else
{
keyProperty = collectionItemEntityType.Key().Where(k => string.CompareOrdinal(k.Name, namedValue.Name) == 0).SingleOrDefault();
if (keyProperty == null)
{
throw new ODataException(ODataErrorStrings.MetadataBinder_PropertyNotDeclaredOrNotKeyInKeyValue(namedValue.Name, collectionItemEntityType.ODataFullName()));
}
}
IEdmTypeReference keyPropertyType = keyProperty.Type;
SingleValueNode value = (SingleValueNode)this.keyValueBindMethod(namedValue.Value);
// TODO: Check that the value is of primitive type
Debug.Assert(keyPropertyType.IsODataPrimitiveTypeKind(), "The key's type must be primitive.");
value = MetadataBindingUtils.ConvertToTypeIfNeeded(value, keyPropertyType);
Debug.Assert(keyProperty != null, "keyProperty != null");
return(new KeyPropertyValue()
{
KeyProperty = keyProperty,
KeyValue = value
});
}
