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/****************************************************************************** |
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* Top contributors (to current version): |
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* Dejan Jovanovic, Andrew Reynolds |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* [[ Add one-line brief description here ]] |
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* |
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* [[ Add lengthier description here ]] |
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* \todo document this file |
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*/ |
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#include "cvc5_private.h" |
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#pragma once |
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#include "expr/node.h" |
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#include "theory/theory_id.h" |
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#include "context/cdlist.h" |
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#include "context/cdhashset.h" |
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#include "context/cdhashmap.h" |
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namespace cvc5 { |
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class AtomRequests { |
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public: |
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/** Which atom and where to send it */ |
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struct Request { |
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/** Atom */ |
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Node d_atom; |
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/** Where to send it */ |
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theory::TheoryId d_toTheory; |
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Request(TNode a, theory::TheoryId tt) : d_atom(a), d_toTheory(tt) {} |
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Request() : d_toTheory(theory::THEORY_LAST) {} |
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bool operator == (const Request& other) const { |
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return d_atom == other.d_atom && d_toTheory == other.d_toTheory; |
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} |
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size_t hash() const { return d_atom.getId(); } |
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}; |
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AtomRequests(context::Context* context); |
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/** Mark the atom to be sent to a theory, when the trigger atom gets assigned */ |
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void add(TNode triggerAtom, TNode atomToSend, theory::TheoryId toTheory); |
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/** Returns true if the node is a trigger and has a list of atoms to send */ |
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bool isTrigger(TNode atom) const; |
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/** Indices in lists */ |
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typedef size_t element_index; |
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class atom_iterator { |
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const AtomRequests& d_requests; |
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element_index d_index; |
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friend class AtomRequests; |
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atom_iterator(const AtomRequests& requests, element_index start) |
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: d_requests(requests), d_index(start) |
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{ |
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} |
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public: |
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/** Is this iterator done */ |
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bool done() const; |
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/** Go to the next element */ |
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void next(); |
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/** Get the actual request */ |
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const Request& get() const; |
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}; |
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atom_iterator getAtomIterator(TNode trigger) const; |
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private: |
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struct RequestHashFunction { |
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size_t operator () (const Request& r) const { |
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return r.hash(); |
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} |
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}; |
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/** Set of all requests so we don't add twice */ |
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context::CDHashSet<Request, RequestHashFunction> d_allRequests; |
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static const element_index null_index = -1; |
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struct Element { |
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/** Current request */ |
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Request d_request; |
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/** Previous request */ |
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element_index d_previous; |
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Element(const Request& r, element_index p) : d_request(r), d_previous(p) {} |
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}; |
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/** We index the requests in this vector, it's a list */ |
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context::CDList<Element> d_requests; |
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typedef context::CDHashMap<Node, element_index> trigger_to_list_map; |
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/** Map from triggers, to the list of elements they trigger */ |
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trigger_to_list_map d_triggerToRequestMap; |
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/** Get the list index of the trigger */ |
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element_index getList(TNode trigger) const; |
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}; |
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} // namespace cvc5 |