internal GroupByWithResultSelectorExpressionNode(
MethodCallExpressionParseInfo parseInfo,
LambdaExpression keySelector,
LambdaExpression elementSelectorOrResultSelector,
LambdaExpression resultSelectorOrNull)
{
ArgumentUtility.CheckNotNull("keySelector", keySelector);
ArgumentUtility.CheckNotNull("elementSelectorOrResultSelector", elementSelectorOrResultSelector);
_selectExpressionNode = new SelectExpressionNode(
CreateParseInfoWithGroupNode(parseInfo, keySelector, elementSelectorOrResultSelector,
resultSelectorOrNull),
CreateSelectorForSelectNode(keySelector, elementSelectorOrResultSelector, resultSelectorOrNull));
}
private static MethodCallExpressionParseInfo TransformParseInfo(
MethodCallExpressionParseInfo parseInfo,
LambdaExpression optionalPredicate,
LambdaExpression optionalSelector)
{
var source = parseInfo.Source;
if (optionalPredicate != null)
{
source = new WhereExpressionNode(parseInfo, optionalPredicate);
}
if (optionalSelector != null)
{
var newParseInfo = new MethodCallExpressionParseInfo(parseInfo.AssociatedIdentifier, source,
parseInfo.ParsedExpression);
source = new SelectExpressionNode(newParseInfo, optionalSelector);
}
return(new MethodCallExpressionParseInfo(parseInfo.AssociatedIdentifier, source,
parseInfo.ParsedExpression));
}