[dotnet] Add variant of the capture former that takes a flattening sp…

…ecification.
jnthn · Nov 20, 2010 · d73ce45 · d73ce45
1 parent a180bfb
commit d73ce45
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Showing 2 changed files with 36 additions and 2 deletions.
diff --git a/dotnet/runtime/Metamodel/Representations/P6capture.cs b/dotnet/runtime/Metamodel/Representations/P6capture.cs
@@ -18,6 +18,7 @@ internal sealed class Instance : RakudoObject
         {
             public RakudoObject[] Positionals;
             public Dictionary<string, RakudoObject> Nameds;
+            public int[] FlattenSpec;
             public Instance(SharedTable STable)
             {
                 this.STable = STable;

diff --git a/dotnet/runtime/Runtime/CaptureHelper.cs b/dotnet/runtime/Runtime/CaptureHelper.cs
@@ -13,6 +13,21 @@ namespace Rakudo.Runtime
     /// </summary>
     public static class CaptureHelper
     {
+        /// <summary>
+        /// Don't flatten.
+        /// </summary>
+        public const int FLATTEN_NONE = 0;
+
+        /// <summary>
+        /// Flatten positionally.
+        /// </summary>
+        public const int FLATTEN_POS = 1;
+
+        /// <summary>
+        /// Flatten named.
+        /// </summary>
+        public const int FLATTEN_NAMED = 2;
+
         /// <summary>
         /// Cache of the native capture type object.
         /// </summary>
@@ -31,7 +46,7 @@ public static RakudoObject FormWith()
         /// <summary>
         /// Forms a capture from the provided positional arguments.
         /// </summary>
-        /// <param name="Args"></param>
+        /// <param name="PosArgs"></param>
         /// <returns></returns>
         public static RakudoObject FormWith(RakudoObject[] PosArgs)
         {
@@ -43,7 +58,8 @@ public static RakudoObject FormWith(RakudoObject[] PosArgs)
         /// <summary>
         /// Forms a capture from the provided positional and named arguments.
         /// </summary>
-        /// <param name="Args"></param>
+        /// <param name="PosArgs"></param>
+        /// <param name="NamedArgs"></param>
         /// <returns></returns>
         public static RakudoObject FormWith(RakudoObject[] PosArgs, Dictionary<string, RakudoObject> NamedArgs)
         {
@@ -53,6 +69,23 @@ public static RakudoObject FormWith(RakudoObject[] PosArgs, Dictionary<string, R
             return C;
         }
 
+        /// <summary>
+        /// Forms a capture from the provided positional and named arguments
+        /// and the given flattening spec.
+        /// </summary>
+        /// <param name="PosArgs"></param>
+        /// <param name="NamedArgs"></param>
+        /// <param name="FlattenSpec"></param>
+        /// <returns></returns>
+        public static RakudoObject FormWith(RakudoObject[] PosArgs, Dictionary<string, RakudoObject> NamedArgs, int[] FlattenSpec)
+        {
+            var C = (P6capture.Instance)CaptureTypeObject.STable.REPR.instance_of(null, CaptureTypeObject);
+            C.Positionals = PosArgs;
+            C.Nameds = NamedArgs;
+            C.FlattenSpec = FlattenSpec;
+            return C;
+        }
+
         /// <summary>
         /// Get a positional argument from a capture.
         /// </summary>