hoist macro-replacer as shared utility, update eliminate-predicates and model reconstruction

src/ast/rewriter/macro_replacer.h

@@ -0,0 +1,44 @@
+/*++
+Copyright (c) 2022 Microsoft Corporation
+
+Module Name:
+
+    macro_replacer.h
+
+Abstract:
+
+    Abstract (functor) for applying macro replacement.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2022-11-24
+
+Notes:
+
+--*/
+#pragma once
+
+#include "ast/ast.h"
+#include "util/obj_hashtable.h"
+
+
+class macro_replacer {
+    ast_manager& m;
+    ast_ref_vector m_trail;
+    expr_dependency_ref_vector m_deps;
+    obj_map<func_decl, std::tuple<app*, expr*, expr_dependency*>> m_map;
+    struct macro_replacer_cfg;
+    struct macro_replacer_rw;
+
+public:
+
+    macro_replacer(ast_manager& m): m(m), m_trail(m), m_deps(m) {}
+
+    void insert(app* head, expr* def, expr_dependency* dep);
+    void operator()(expr* t, expr_ref& result, expr_dependency_ref& dep);
+    void operator()(expr* t, expr_ref & result) { expr_dependency_ref dep(m); (*this)(t, result, dep); }
+    void operator()(expr_ref & t) { expr_ref s(t, m); (*this)(s, t); }
+
+    bool has_macro(func_decl* f, app_ref& head, expr_ref& def, expr_dependency_ref& d);
+};
+