private LegacyCommandTrees.DbNewInstanceExpression CreateNewCollectionInstance(DbNewInstanceExpression inputExpression)
{
Debug.Assert(inputExpression != null, "inputExpression != null");
Debug.Assert(
inputExpression.ResultType.EdmType.BuiltInTypeKind == BuiltInTypeKind.CollectionType,
"Collection type expected");
return(LegacyExpressionBuilder.NewCollection(inputExpression.Arguments.Select(a => a.Accept(this))));
}
public override LegacyCommandTrees.DbExpression Visit(DbCaseExpression expression)
{
Debug.Assert(expression != null, "expression != null");
return
(LegacyExpressionBuilder.Case(
expression.When.Select(e => e.Accept(this)),
expression.Then.Select(e => e.Accept(this)),
expression.Else.Accept(this)));
}
public override LegacyCommandTrees.DbExpression Visit(DbCrossJoinExpression expression)
{
Debug.Assert(expression != null, "expression != null");
return
(LegacyExpressionBuilder
.CrossJoin(
expression.Inputs.Select(
binding => binding.Expression.Accept(this).BindAs(binding.VariableName))));
}
private LegacyCommandTrees.DbNewInstanceExpression CreateNewRowTypeInstance(DbNewInstanceExpression inputExpression)
{
Debug.Assert(inputExpression != null, "inputExpression != null");
Debug.Assert(
inputExpression.ResultType.EdmType.BuiltInTypeKind == BuiltInTypeKind.RowType,
"Row type expected");
var arguments = new KeyValuePair <string, LegacyCommandTrees.DbExpression> [inputExpression.Arguments.Count];
for (var argIdx = 0; argIdx < arguments.Length; argIdx++)
{
arguments[argIdx] =
new KeyValuePair <string, LegacyCommandTrees.DbExpression>(
((RowType)inputExpression.ResultType.EdmType).Properties[argIdx].Name,
inputExpression.Arguments[argIdx].Accept(this));
}
return(LegacyExpressionBuilder.NewRow(arguments));
}
