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https://github.com/Z3Prover/z3
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52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
/*++
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Copyright (c) 2006 Microsoft Corporation
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Module Name:
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solver_plugin.h
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Abstract:
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<abstract>
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Author:
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Leonardo de Moura (leonardo) 2008-06-30.
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Revision History:
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--*/
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#ifndef _SOLVER_PLUGIN_H_
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#define _SOLVER_PLUGIN_H_
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#include"ast.h"
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/**
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\brief Abstract solver used during preprocessing step.
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*/
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class solver_plugin {
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protected:
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ast_manager & m_manager;
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family_id m_fid;
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public:
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solver_plugin(symbol const & fname, ast_manager & m):m_manager(m), m_fid(m.get_family_id(fname)) {}
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virtual ~solver_plugin() {}
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/**
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\brief Return true if it is possible to solve lhs = rhs. The
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arg. forbidden contains the set of variables that cannot be
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used. Store the result (var = subst) in var and subst.
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\remark Only simple solvers are supported. That is, the solution set has only one entry.
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*/
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virtual bool solve(expr * lhs, expr * rhs, expr_mark const & forbidden, app_ref & var, expr_ref & subst) = 0;
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family_id get_family_id() const { return m_fid; }
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ast_manager & get_manager() { return m_manager; }
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};
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#endif /* _SOLVER_PLUGIN_H_ */
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