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https://github.com/Z3Prover/z3
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61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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expr_replacer.h
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Abstract:
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Abstract (functor) for replacing expressions.
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Author:
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Leonardo (leonardo) 2011-04-29
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Notes:
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--*/
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#pragma once
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#include "ast/ast.h"
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#include "ast/expr_substitution.h"
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#include "util/params.h"
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/**
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\brief Abstract interface for functors that replace constants with expressions.
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*/
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class expr_replacer {
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struct scoped_set_subst;
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public:
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virtual ~expr_replacer() = default;
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virtual ast_manager & m() const = 0;
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virtual void set_substitution(expr_substitution * s) = 0;
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virtual void operator()(expr * t, expr_ref & result, proof_ref & result_pr, expr_dependency_ref & deps) = 0;
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void operator()(expr* t, expr_ref& result, expr_dependency_ref& deps);
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void operator()(expr * t, expr_ref & result, proof_ref & result_pr);
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void operator()(expr * t, expr_ref & result);
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void operator()(expr_ref & t) { expr_ref s(t, m()); (*this)(s, t); }
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void operator()(expr_ref_vector& v) { expr_ref t(m()); for (unsigned i = 0; i < v.size(); ++i) (*this)(v.get(i), t), v[i] = t; }
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std::pair<expr_ref, expr_dependency_ref> replace_with_dep(expr* t) { expr_ref r(m()); expr_dependency_ref d(m()); (*this)(t, r, d); return { r, d }; }
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virtual unsigned get_num_steps() const { return 0; }
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virtual void reset() = 0;
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void apply_substitution(expr * s, expr * def, proof * def_pr, expr_ref & t);
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void apply_substitution(expr * s, expr * def, expr_ref & t);
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};
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/**
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\brief Create a vanilla replacer. It just applies the substitution.
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*/
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expr_replacer * mk_default_expr_replacer(ast_manager & m, bool proofs_allowed);
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/**
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\brief Apply substitution and simplify.
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*/
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expr_replacer * mk_expr_simp_replacer(ast_manager & m, params_ref const & p = params_ref());
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