Fix block body child linking for parameter declarations

Copilot · dadhi · web-flow · commit 2517e7c1c25c · 2026-04-27T17:41:12.000Z
Agent-Logs-Url: https://github.com/dadhi/FastExpressionCompiler/sessions/90049206-1092-4941-aabf-e1947566e4bc Co-authored-by: dadhi <39516+dadhi@users.noreply.github.com>
diff --git a/src/FastExpressionCompiler.LightExpression/FlatExpression.cs b/src/FastExpressionCompiler.LightExpression/FlatExpression.cs
@@ -359,7 +359,7 @@ public int Block(Type type, IEnumerable<int> variables, params int[] expressions
         }
         ChildList bodyChildren = default;
         for (var i = 0; i < expressions.Length; ++i)
-            bodyChildren.Add(expressions[i]);
+            bodyChildren.Add(CloneChild(expressions[i]));
         children.Add(AddChildListNode(in bodyChildren));
         var blockIndex = AddFactoryExpressionNode(type ?? Nodes[expressions[expressions.Length - 1]].Type, null, ExpressionType.Block, in children);
         for (var i = 0; i < variableDeclarations.Count; ++i)

Original file line number	Diff line number	Diff line change
`@@ -359,7 +359,7 @@ public int Block(Type type, IEnumerable<int> variables, params int[] expressions`
`359`	`359`	`}`
`360`	`360`	`ChildList bodyChildren = default;`
`361`	`361`	`for (var i = 0; i < expressions.Length; ++i)`
`362`		`- bodyChildren.Add(expressions[i]);`
	`362`	`+ bodyChildren.Add(CloneChild(expressions[i]));`
`363`	`363`	`children.Add(AddChildListNode(in bodyChildren));`
`364`	`364`	`var blockIndex = AddFactoryExpressionNode(type ?? Nodes[expressions[expressions.Length - 1]].Type, null, ExpressionType.Block, in children);`
`365`	`365`	`for (var i = 0; i < variableDeclarations.Count; ++i)`