Pipe Parameter is now a Tuple

Src/AST/Myc.Ast.Analysis.Purity.pas

@@ -55,9 +55,6 @@ type
         function VisitTuple(const Node: IAstNode): Boolean;
 
         // Pipe Support
-        function VisitPipeInput(const Node: IAstNode): Boolean;
-        function VisitPipeSelectorList(const Node: IAstNode): Boolean;
-        function VisitPipeInputList(const Node: IAstNode): Boolean;
         function VisitPipe(const Node: IAstNode): Boolean;
 
         // Helper to check if a node is pure (handling nil gracefully)
@@ -131,9 +128,6 @@ begin
     Register(akTuple, VisitTuple);
 
     // Pipes
-    Register(akPipeInput, VisitPipeInput);
-    Register(akPipeSelectorList, VisitPipeSelectorList);
-    Register(akPipeInputList, VisitPipeInputList);
     Register(akPipe, VisitPipe);
 end;
 
@@ -328,34 +322,11 @@ end;
 
 // --- Pipe Support ---
 
-function TPurityAnalyzer.VisitPipeInput(const Node: IAstNode): Boolean;
-begin
-    var P := Node.AsPipeInput;
-    // Input node itself is declarative.
-    // But we check its parts just in case.
-    Result := IsNodePure(P.StreamSource) and IsNodePure(P.Selectors);
-end;
-
-function TPurityAnalyzer.VisitPipeSelectorList(const Node: IAstNode): Boolean;
-begin
-    for var item in Node.AsPipeSelectorList do
-        if not IsNodePure(item) then
-            exit(False);
-    Result := True;
-end;
-
-function TPurityAnalyzer.VisitPipeInputList(const Node: IAstNode): Boolean;
-begin
-    for var item in Node.AsPipeInputList do
-        if not IsNodePure(item) then
-            exit(False);
-    Result := True;
-end;
-
 function TPurityAnalyzer.VisitPipe(const Node: IAstNode): Boolean;
 begin
     var P := Node.AsPipe;
-    // A pipe is pure if its input definitions are pure AND its transformation lambda is pure.
+    // A pipe is pure if its inputs are pure AND its transformation lambda is pure.
+    // P.Inputs is an ITupleNode (recursive Tuple of Tuples), so VisitTuple handles it.
     Result := IsNodePure(P.Inputs) and IsNodePure(P.Transformation);
 end;