Resolved cyclic dependencies between environment and compiler stages

Src/AST/Myc.Ast.Compiler.Macros.pas

@@ -12,8 +12,7 @@ uses
     Myc.Ast.Visitor,
     Myc.Ast.Scope,
     Myc.Ast.Types,
-    Myc.Ast,
-    Myc.Ast.Environment;
+    Myc.Ast;
 
 type
     IAstMacroExpander = interface(IAstVisitor)
@@ -56,6 +55,16 @@ type
         ): IAstNode;
     end;
 
+    IMacroRegistry = interface
+        {$region 'private'}
+        function GetParent: IMacroRegistry;
+        {$endregion}
+        procedure Define(const Node: IMacroDefinitionNode);
+        function Find(const Name: string): IMacroDefinitionNode;
+        function CreateChildRegistry: IMacroRegistry;
+        property Parent: IMacroRegistry read GetParent;
+    end;
+
     // Handles the expansion of macro calls within the AST.
     TMacroExpander = class(TAstTransformer, IAstMacroExpander)
     private