public SearchParamTableExpressionQueryGenerator VisitMultiary(MultiaryExpression expression, object context)
{
foreach (var childExpression in expression.Expressions)
{
var handler = childExpression.AcceptVisitor(this, context);
if (handler != null)
{
return(handler);
}
}
return(null);
}
public static void ValidateMultiaryExpression(
Expression expression,
MultiaryOperator multiaryOperator,
params Action <Expression>[] valueValidators)
{
MultiaryExpression multiaryExpression = Assert.IsType <MultiaryExpression>(expression);
Assert.Equal(multiaryOperator, multiaryExpression.MultiaryOperation);
Assert.Collection(
multiaryExpression.Expressions,
valueValidators);
}
public override Expression VisitMultiary(MultiaryExpression expression, object context)
{
expression = (MultiaryExpression)base.VisitMultiary(expression, context);
if (expression.Expressions.Count == 1)
{
return(expression.Expressions[0]);
}
List <Expression> newExpressions = null;
for (var i = 0; i < expression.Expressions.Count; i++)
{
Expression childExpression = expression.Expressions[i];
if (childExpression is MultiaryExpression childMultiary && childMultiary.MultiaryOperation == expression.MultiaryOperation)
{
EnsureAllocatedAndPopulated(ref newExpressions, expression.Expressions, i);
newExpressions.AddRange(childMultiary.Expressions);
}
public override Expression VisitMultiary(MultiaryExpression expression, object context)
{
if (expression.MultiaryOperation == MultiaryOperator.And &&
expression.Expressions.Count == 3 &&
expression.Expressions[0] is BinaryExpression isLong &&
isLong.FieldName == SqlFieldName.DateTimeIsLongerThanADay)
{
var left = (BinaryExpression)expression.Expressions[1];
var right = (BinaryExpression)expression.Expressions[2];
return(Expression.And(
Expression.Equals(SqlFieldName.DateTimeIsLongerThanADay, left.ComponentIndex, false),
new BinaryExpression(left.BinaryOperator, FieldName.DateTimeEnd, left.ComponentIndex, left.Value),
new BinaryExpression(left.BinaryOperator, FieldName.DateTimeStart, left.ComponentIndex, ((DateTimeOffset)left.Value).AddTicks(-TimeSpan.TicksPerDay)),
new BinaryExpression(right.BinaryOperator, FieldName.DateTimeStart, right.ComponentIndex, right.Value)));
}
return(expression);
}
public override Expression VisitMultiary(MultiaryExpression expression, int context)
{
if (expression.MultiaryOperation != MultiaryOperator.And)
{
throw new InvalidOperationException("Or is not supported as a top-level expression");
}
List <Expression> denormalizedPredicates = null;
List <TableExpression> normalizedPredicates = null;
for (var i = 0; i < expression.Expressions.Count; i++)
{
Expression childExpression = expression.Expressions[i];
if (TryGetNormalizedGenerator(childExpression, out var normalizedGenerator, out var tableExpressionKind))
{
EnsureAllocatedAndPopulated(ref denormalizedPredicates, expression.Expressions, i);
EnsureAllocatedAndPopulated(ref normalizedPredicates, Array.Empty <TableExpression>(), 0);
normalizedPredicates.Add(new TableExpression(normalizedGenerator, childExpression, null, tableExpressionKind, tableExpressionKind == TableExpressionKind.Chain ? 1 : 0));
}
public override SearchParameterQueryGeneratorContext VisitMultiary(MultiaryExpression expression, SearchParameterQueryGeneratorContext context)
{
if (expression.MultiaryOperation == MultiaryOperator.Or)
{
context.StringBuilder.Append('(');
}
context.StringBuilder.AppendDelimited(
sb => sb.AppendLine().Append(expression.MultiaryOperation == MultiaryOperator.And ? "AND " : "OR "),
expression.Expressions,
(sb, childExpr) => childExpr.AcceptVisitor(this, context));
if (expression.MultiaryOperation == MultiaryOperator.Or)
{
context.StringBuilder.Append(')');
}
context.StringBuilder.AppendLine();
return(context);
}
public override Expression VisitMultiary(MultiaryExpression expression, int context)
{
if (expression.MultiaryOperation != MultiaryOperator.And)
{
throw new InvalidOperationException("Or is not supported as a top-level expression");
}
List <SearchParameterExpressionBase> resourceExpressions = null;
List <SearchParamTableExpression> tableExpressions = null;
for (var i = 0; i < expression.Expressions.Count; i++)
{
Expression childExpression = expression.Expressions[i];
if (TryGetSearchParamTableExpressionQueryGenerator(childExpression, out SearchParamTableExpressionQueryGenerator tableExpressionGenerator, out SearchParamTableExpressionKind tableExpressionKind))
{
EnsureAllocatedAndPopulatedChangeType(ref resourceExpressions, expression.Expressions, i);
EnsureAllocatedAndPopulated(ref tableExpressions, Array.Empty <SearchParamTableExpression>(), 0);
tableExpressions.Add(new SearchParamTableExpression(tableExpressionGenerator, childExpression, tableExpressionKind, tableExpressionKind == SearchParamTableExpressionKind.Chain ? 1 : 0));
}
