/// <summary>
/// Reports function overload resolution error.
/// </summary>
internal static void ReportFunctionOverloadError(AST.MethodExpr functionExpr, EdmFunction functionType, List <TypeUsage> argTypes)
{
string strDelim = "";
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append(functionType.Name).Append("(");
for (int i = 0; i < argTypes.Count; i++)
{
sb.Append(strDelim);
sb.Append(argTypes[i] != null ? argTypes[i].EdmType.FullName : "NULL");
strDelim = ", ";
}
sb.Append(")");
Func <object, object, object, string> formatString;
if (TypeSemantics.IsAggregateFunction(functionType))
{
formatString = TypeHelpers.IsCanonicalFunction(functionType) ?
(Func <object, object, object, string>)System.Data.Entity.Strings.NoCanonicalAggrFunctionOverloadMatch :
(Func <object, object, object, string>)System.Data.Entity.Strings.NoAggrFunctionOverloadMatch;
}
else
{
formatString = TypeHelpers.IsCanonicalFunction(functionType) ?
(Func <object, object, object, string>)System.Data.Entity.Strings.NoCanonicalFunctionOverloadMatch :
(Func <object, object, object, string>)System.Data.Entity.Strings.NoFunctionOverloadMatch;
}
throw EntityUtil.EntitySqlError(functionExpr.ErrCtx.CommandText,
formatString(functionType.NamespaceName, functionType.Name, sb.ToString()),
functionExpr.ErrCtx.InputPosition,
System.Data.Entity.Strings.CtxFunction(functionType.Name),
false /* loadContextInfoFromResource */);
}
internal static bool IsCollectionAggregateFunction(FunctionOp op, System.Data.Entity.Core.Query.InternalTrees.Node n)
{
if (n.Children.Count == 1 && TypeSemantics.IsCollectionType(n.Child0.Op.Type))
{
return(TypeSemantics.IsAggregateFunction(op.Function));
}
return(false);
}
internal static void ReportFunctionOverloadError(
MethodExpr functionExpr,
EdmFunction functionType,
List <TypeUsage> argTypes)
{
string str = "";
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append(functionType.Name).Append("(");
for (int index = 0; index < argTypes.Count; ++index)
{
stringBuilder.Append(str);
stringBuilder.Append(argTypes[index] != null ? argTypes[index].EdmType.FullName : "NULL");
str = ", ";
}
stringBuilder.Append(")");
Func <object, object, object, string> func = !TypeSemantics.IsAggregateFunction(functionType) ? (TypeHelpers.IsCanonicalFunction(functionType) ? new Func <object, object, object, string>(Strings.NoCanonicalFunctionOverloadMatch) : new Func <object, object, object, string>(Strings.NoFunctionOverloadMatch)) : (TypeHelpers.IsCanonicalFunction(functionType) ? new Func <object, object, object, string>(Strings.NoCanonicalAggrFunctionOverloadMatch) : new Func <object, object, object, string>(Strings.NoAggrFunctionOverloadMatch));
throw EntitySqlException.Create(functionExpr.ErrCtx.CommandText, func((object)functionType.NamespaceName, (object)functionType.Name, (object)stringBuilder.ToString()), functionExpr.ErrCtx.InputPosition, Strings.CtxFunction((object)functionType.Name), false, (Exception)null);
}
internal static DbExpressionList ValidateFunctionAggregate(
EdmFunction function,
IEnumerable <DbExpression> args)
{
ArgumentValidation.CheckFunction(function);
if (!TypeSemantics.IsAggregateFunction(function) || function.ReturnParameter == null)
{
throw new ArgumentException(Strings.Cqt_Aggregate_InvalidFunction, nameof(function));
}
FunctionParameter[] expectedParams = ArgumentValidation.GetExpectedParameters(function);
return(ArgumentValidation.CreateExpressionList(args, "argument", expectedParams.Length, (Action <DbExpression, int>)((exp, idx) =>
{
TypeUsage typeUsage = expectedParams[idx].TypeUsage;
TypeUsage elementType = (TypeUsage)null;
if (TypeHelpers.TryGetCollectionElementType(typeUsage, out elementType))
{
typeUsage = elementType;
}
ArgumentValidation.RequireCompatibleType(exp, typeUsage, "argument");
})));
}
// <summary>
// Reports function overload resolution error.
// </summary>
internal static void ReportFunctionOverloadError(MethodExpr functionExpr, EdmFunction functionType, List <TypeUsage> argTypes)
{
var strDelim = "";
var sb = new StringBuilder();
sb.Append(functionType.Name).Append("(");
for (var i = 0; i < argTypes.Count; i++)
{
sb.Append(strDelim);
sb.Append(argTypes[i] != null ? argTypes[i].EdmType.FullName : "NULL");
strDelim = ", ";
}
sb.Append(")");
Func <object, object, object, string> formatString;
if (TypeSemantics.IsAggregateFunction(functionType))
{
formatString = TypeHelpers.IsCanonicalFunction(functionType)
? Strings.NoCanonicalAggrFunctionOverloadMatch
: (Func <object, object, object, string>)Strings.NoAggrFunctionOverloadMatch;
}
else
{
formatString = TypeHelpers.IsCanonicalFunction(functionType)
? Strings.NoCanonicalFunctionOverloadMatch
: (Func <object, object, object, string>)Strings.NoFunctionOverloadMatch;
}
throw EntitySqlException.Create(
functionExpr.ErrCtx.CommandText,
formatString(functionType.NamespaceName, functionType.Name, sb.ToString()),
functionExpr.ErrCtx.InputPosition,
Strings.CtxFunction(functionType.Name),
false,
null);
}
/// <summary>
/// Is this function a collection aggregate function. It is, if
/// - it has exactly one child
/// - that child is a collection type
/// - and the function has been marked with the aggregate attribute
/// </summary>
/// <param name="op"> the function op </param>
/// <param name="n"> the current subtree </param>
/// <returns> true, if this was a collection aggregate function </returns>
internal static bool IsCollectionAggregateFunction(FunctionOp op, Node n)
{
return((n.Children.Count == 1) &&
TypeSemantics.IsCollectionType(n.Child0.Op.Type) &&
TypeSemantics.IsAggregateFunction(op.Function));
}
