private Sql.ExpressionAttribute GetDbFunctionFromMethodCall(Type type, MethodInfo methodInfo)
{
if (_dependencies == null || _model == null)
{
return(null);
}
methodInfo = (MethodInfo)type.GetMemberEx(methodInfo) ?? methodInfo;
var found = _calculatedExtensions.GetOrAdd(methodInfo, mi =>
{
EFCoreExpressionAttribute result = null;
if (!methodInfo.IsGenericMethodDefinition && !mi.GetCustomAttributes <Sql.ExpressionAttribute>().Any())
{
var value = Expression.Constant(DefaultValue.GetValue(type), type);
var objExpr = new SqlTransparentExpression(value, _mappingSource?.FindMapping(type));
var parameterInfos = methodInfo.GetParameters();
var parametersArray = parameterInfos
.Select(p =>
(SqlExpression) new SqlTransparentExpression(
Expression.Constant(DefaultValue.GetValue(p.ParameterType), p.ParameterType),
_mappingSource?.FindMapping(p.ParameterType))).ToArray();
var newExpression = _dependencies.MethodCallTranslatorProvider.Translate(_model, objExpr, methodInfo, parametersArray);
if (newExpression != null)
{
if (!methodInfo.IsStatic)
{
parametersArray = new SqlExpression[] { objExpr }
}
.Concat(parametersArray).ToArray();
result = ConvertToExpressionAttribute(methodInfo, newExpression, parametersArray);
}
protected bool Equals(SqlTransparentExpression other)
{
return ReferenceEquals(this, other);
}