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/****************************************************************************** |
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* Top contributors (to current version): |
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* 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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* Type rules for the builtin theory. |
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*/ |
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#include "theory/builtin/theory_builtin_type_rules.h" |
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#include "expr/attribute.h" |
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#include "expr/skolem_manager.h" |
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#include "expr/uninterpreted_constant.h" |
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#include "util/cardinality.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace builtin { |
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TypeNode UninterpretedConstantTypeRule::computeType(NodeManager* nodeManager, |
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TNode n, |
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bool check) |
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{ |
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return n.getConst<UninterpretedConstant>().getType(); |
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} |
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/** |
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* Attribute for caching the ground term for each type. Maps TypeNode to the |
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* skolem to return for mkGroundTerm. |
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*/ |
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struct GroundTermAttributeId |
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{ |
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}; |
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typedef expr::Attribute<GroundTermAttributeId, Node> GroundTermAttribute; |
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Node SortProperties::mkGroundTerm(TypeNode type) |
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{ |
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// we typically use this method for sorts, although there are other types |
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// where it is used as well, e.g. arrays that are not closed enumerable. |
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GroundTermAttribute gta; |
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if (type.hasAttribute(gta)) |
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{ |
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return type.getAttribute(gta); |
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} |
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SkolemManager* sm = NodeManager::currentNM()->getSkolemManager(); |
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Node k = sm->mkDummySkolem( |
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"groundTerm", type, "a ground term created for type " + type.toString()); |
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type.setAttribute(gta, k); |
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return k; |
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} |
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Cardinality FunctionProperties::computeCardinality(TypeNode type) |
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{ |
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// Don't assert this; allow other theories to use this cardinality |
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// computation. |
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// |
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// Assert(type.getKind() == kind::FUNCTION_TYPE); |
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Cardinality argsCard(1); |
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// get the largest cardinality of function arguments/return type |
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for (size_t i = 0, i_end = type.getNumChildren() - 1; i < i_end; ++i) |
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{ |
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argsCard *= type[i].getCardinality(); |
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} |
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Cardinality valueCard = type[type.getNumChildren() - 1].getCardinality(); |
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return valueCard ^ argsCard; |
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} |
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} // namespace builtin |
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} // namespace theory |
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} // namespace cvc5 |