/// <inheritdoc />
protected override Expression Reduce(QueryClause previous, QueryClause next)
{
return(Expression.Block(new[] { Variable },
Expression.Assign(Variable, Expression),
next.Reduce()
));
}
/// <inheritdoc />
protected override Expression Reduce(QueryClause previous, QueryClause next)
{
return(Expressive.ForEach(
Variable,
Enumerable,
next.Reduce()
));
}
internal QueryClause Clone(QueryExpression query, int index)
{
QueryClause clone = this.MemberwiseClone() as QueryClause;
clone.query = query;
clone.index = index;
return(clone);
}
/// <inheritdoc />
protected override Expression VisitChildren(ExpressionVisitor visitor)
{
QueryClause[] clauses = new QueryClause[Clauses.Length];
for (int i = 0; i < clauses.Length; i++)
{
clauses[i] = Clauses[i].VisitChildren(visitor);
}
return(Update(clauses));
}
/// <inheritdoc />
protected override Expression Reduce(QueryClause previous, QueryClause next)
{
return(Expressive.Yield(Selector));
}
/// <inheritdoc />
protected override Expression Reduce(QueryClause previous, QueryClause next)
{
return(next.Reduce());
}
/// <summary> /// Reduces this <see cref="QueryClause"/> into an <see cref="Expression"/>, /// given the clauses that preceed and follow it. /// </summary> protected abstract Expression Reduce(QueryClause previous, QueryClause next);
/// <inheritdoc />
protected override Expression Reduce(QueryClause previous, QueryClause next)
{
return(Expression.IfThen(Condition, next.Reduce()));
}