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/******************************************************************************
* Top contributors (to current version):
* Morgan Deters, Aina Niemetz, Mathias Preiner
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
* in the top-level source directory and their institutional affiliations.
* All rights reserved. See the file COPYING in the top-level source
* directory for licensing information.
* ****************************************************************************
*
* Template for the metakind header.
*/
#include "cvc5_private.h"
#ifndef CVC5__KIND__METAKIND_H
#define CVC5__KIND__METAKIND_H
#include <iosfwd>
#include "base/check.h"
#include "expr/kind.h"
namespace cvc5 {
namespace expr {
class NodeValue;
} // namespace expr
namespace kind {
namespace metakind {
/**
* Static, compile-time information about types T representing cvc5
* constants:
*
* typename ConstantMap<T>::OwningTheory
*
* The theory in charge of constructing T when constructing Nodes
* with NodeManager::mkConst(T).
*
* typename ConstantMap<T>::kind
*
* The kind to use when constructing Nodes with
* NodeManager::mkConst(T).
*/
template <class T>
struct ConstantMap;
/**
* Static, compile-time information about kinds k and what type their
* corresponding cvc5 constants are:
*
* typename ConstantMapReverse<k>::T
*
* Constant type for kind k.
*/
template <Kind k>
struct ConstantMapReverse;
/**
* Static, compile-time mapping from CONSTANT kinds to comparison
* functors on NodeValue*. The single element of this structure is:
*
* static bool NodeValueCompare<K, pool>::compare(NodeValue* x, NodeValue* y)
*
* Compares x and y, given that they are both K-kinded (and the
* meta-kind of K is CONSTANT). If pool == true, one of x and y
* (but not both) may be a "non-inlined" NodeValue. If pool ==
* false, neither x nor y may be a "non-inlined" NodeValue.
*/
template <Kind k, bool pool>
struct NodeValueConstCompare {
inline static bool compare(const ::cvc5::expr::NodeValue* x,
const ::cvc5::expr::NodeValue* y);
inline static size_t constHash(const ::cvc5::expr::NodeValue* nv);
};/* NodeValueConstCompare<k, pool> */
struct NodeValueCompare {
template <bool pool>
static bool compare(const ::cvc5::expr::NodeValue* nv1,
const ::cvc5::expr::NodeValue* nv2);
static size_t constHash(const ::cvc5::expr::NodeValue* nv);
};/* struct NodeValueCompare */
/**
* "metakinds" represent the "kinds" of kinds at the meta-level.
* "metakind" is an ugly name but it's not used by client code, just
* by the expr package, and the intent here is to keep it from
* polluting the kind namespace. For more documentation on what these
* mean, see src/theory/builtin/kinds.
*/
enum MetaKind_t {
INVALID = -1, /**< special node non-kinds like NULL_EXPR or LAST_KIND */
VARIABLE, /**< special node kinds: no operator */
OPERATOR, /**< operators that get "inlined" */
PARAMETERIZED, /**< parameterized ops (like APPLYs) that carry extra data */
CONSTANT, /**< constants */
NULLARY_OPERATOR /**< nullary operator */
};/* enum MetaKind_t */
} // namespace metakind
// import MetaKind into the "cvc5::kind" namespace but keep the
// individual MetaKind constants under kind::metakind::
typedef ::cvc5::kind::metakind::MetaKind_t MetaKind;
/**
* Get the metakind for a particular kind.
*/
MetaKind metaKindOf(Kind k);
} // namespace kind
namespace expr {
// Comparison predicate
struct NodeValuePoolEq {
inline bool operator()(const NodeValue* nv1, const NodeValue* nv2) const {
return ::cvc5::kind::metakind::NodeValueCompare::compare<true>(nv1, nv2);
}
};
} // namespace expr
} // namespace cvc5
#include "expr/node_value.h"
#endif /* CVC5__KIND__METAKIND_H */
// clang-format off
${metakind_includes}
// clang-format on
#ifdef CVC5__NODE_MANAGER_NEEDS_CONSTANT_MAP
namespace cvc5 {
namespace expr {
// clang-format off
${metakind_getConst_decls}
// clang-format on
} // namespace expr
namespace kind {
namespace metakind {
template <Kind k, bool pool>
inline bool NodeValueConstCompare<k, pool>::compare(
const ::cvc5::expr::NodeValue* x, const ::cvc5::expr::NodeValue* y)
{
typedef typename ConstantMapReverse<k>::T T;
if(pool) {
if(x->d_nchildren == 1) {
Assert(y->d_nchildren == 0);
return compare(y, x);
} else if(y->d_nchildren == 1) {
Assert(x->d_nchildren == 0);
return x->getConst<T>() == *reinterpret_cast<T*>(y->d_children[0]);
}
}
Assert(x->d_nchildren == 0);
Assert(y->d_nchildren == 0);
return x->getConst<T>() == y->getConst<T>();
}
template <Kind k, bool pool>
inline size_t NodeValueConstCompare<k, pool>::constHash(
const ::cvc5::expr::NodeValue* nv)
{
typedef typename ConstantMapReverse<k>::T T;
return nv->getConst<T>().hash();
}
// clang-format off
${metakind_constantMaps_decls}
// clang-format on
struct NodeValueConstPrinter
{
static void toStream(std::ostream& out, const ::cvc5::expr::NodeValue* nv);
static void toStream(std::ostream& out, TNode n);
};
/**
* Cleanup to be performed when a NodeValue zombie is collected, and
* it has CONSTANT metakind. This calls the destructor for the underlying
* C++ type representing the constant value. See
* NodeManager::reclaimZombies() for more information.
*
* This doesn't support "non-inlined" NodeValues, which shouldn't need this
* kind of cleanup.
*/
void deleteNodeValueConstant(::cvc5::expr::NodeValue* nv);
/** Return the minimum arity of the given kind. */
uint32_t getMinArityForKind(::cvc5::Kind k);
/** Return the maximum arity of the given kind. */
uint32_t getMaxArityForKind(::cvc5::Kind k);
} // namespace metakind
/**
* Map a kind of the operator to the kind of the enclosing expression. For
* example, since the kind of functions is just VARIABLE, it should map
* VARIABLE to APPLY_UF.
*/
Kind operatorToKind(::cvc5::expr::NodeValue* nv);
} // namespace kind
} // namespace cvc5
#endif /* CVC5__NODE_MANAGER_NEEDS_CONSTANT_MAP */
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