chore: initial git load of code space

src/Strata.SqlTools.Rules/Rule/Groups/With.cs

@@ -0,0 +1,33 @@
+using Strata.SqlTools.Rules.Rule.Expression;
+
+namespace Strata.SqlTools.Rules.Rule.Groups;
+
+/// <summary>
+/// Represents a rule group with sequential rule evaluation (WITH semantics).
+/// </summary>
+public class With : Base
+{
+    /// <summary>
+    /// Gets the expressions from all rules, potentially with ordering applied.
+    /// </summary>
+    /// <returns>An enumerable of BoolExpr rule expressions.</returns>
+    protected override IEnumerable<BoolExpr> GetExpressions()
+    {
+        // do some ordering here??
+        return base.GetExpressions();
+    }
+
+    /// <summary>
+    /// Merges two BoolExpr expressions using WITH semantics.
+    /// </summary>
+    /// <param name="left">The left BoolExpr expression.</param>
+    /// <param name="right">The right BoolExpr expression.</param>
+    /// <returns>A WITH expression combining both expressions.</returns>
+    protected override BoolExpr Merge(BoolExpr left, BoolExpr right) => new Expression.With(left, right);
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="With"/> class.
+    /// </summary>
+    /// <param name="rules">The collection of rules to include in this WITH group.</param>
+    public With(IEnumerable<IRule> rules) : base(rules) { }
+}