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https://github.com/Z3Prover/z3
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85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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api_datalog.h
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Abstract:
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Datalog API
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old external_relation_context_impl
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Author:
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Leonardo de Moura (leonardo) 2012-02-29.
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Revision History:
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--*/
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#ifndef _API_DATALOG_H_
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#define _API_DATALOG_H_
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#include"z3.h"
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#include"ast.h"
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#include"front_end_params.h"
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#include"dl_external_relation.h"
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#include"dl_decl_plugin.h"
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#include"smt_solver.h"
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#include"api_util.h"
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#include"dl_context.h"
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typedef void (*reduce_app_callback_fptr)(void*, func_decl*, unsigned, expr*const*, expr**);
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typedef void (*reduce_assign_callback_fptr)(void*, func_decl*, unsigned, expr*const*, unsigned, expr*const*);
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namespace api {
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class fixedpoint_context : public datalog::external_relation_context {
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void * m_state;
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reduce_app_callback_fptr m_reduce_app;
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reduce_assign_callback_fptr m_reduce_assign;
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datalog::context m_context;
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ast_ref_vector m_trail;
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public:
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fixedpoint_context(ast_manager& m, front_end_params& p);
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virtual ~fixedpoint_context() {}
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family_id get_family_id() const { return const_cast<datalog::context&>(m_context).get_decl_util().get_family_id(); }
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void set_state(void* state);
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void set_reduce_app(reduce_app_callback_fptr f) { m_reduce_app = f; }
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void set_reduce_assign(reduce_assign_callback_fptr f) { m_reduce_assign = f; }
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virtual void reduce(func_decl* f, unsigned num_args, expr * const* args, expr_ref& result);
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virtual void reduce_assign(func_decl* f, unsigned num_args, expr * const* args, unsigned num_out, expr* const* outs);
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datalog::context& ctx() { return m_context; }
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void add_rule(expr* rule, symbol const& name);
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void update_rule(expr* rule, symbol const& name);
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void add_table_fact(func_decl* r, unsigned num_args, unsigned args[]);
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std::string get_last_status();
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std::string to_string(unsigned num_queries, expr*const* queries);
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void cancel() { m_context.cancel(); }
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unsigned get_num_levels(func_decl* pred);
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expr_ref get_cover_delta(int level, func_decl* pred);
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void add_cover(int level, func_decl* pred, expr* predicate);
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void collect_param_descrs(param_descrs & p) { m_context.collect_params(p); }
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void updt_params(params_ref const& p) { m_context.updt_params(p); }
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void simplify_rules(
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unsigned num_rules, expr* const* rules,
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unsigned num_outputs, func_decl* const* outputs, expr_ref_vector& result);
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};
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};
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struct Z3_fixedpoint_ref : public api::object {
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api::fixedpoint_context * m_datalog;
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params_ref m_params;
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Z3_fixedpoint_ref():m_datalog(0) {}
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virtual ~Z3_fixedpoint_ref() { dealloc(m_datalog); }
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};
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inline Z3_fixedpoint_ref * to_fixedpoint(Z3_fixedpoint s) { return reinterpret_cast<Z3_fixedpoint_ref *>(s); }
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inline Z3_fixedpoint of_datalog(Z3_fixedpoint_ref * s) { return reinterpret_cast<Z3_fixedpoint>(s); }
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inline api::fixedpoint_context * to_fixedpoint_ref(Z3_fixedpoint s) { return to_fixedpoint(s)->m_datalog; }
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#endif
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