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/********************* */
/*! \file node_value.cpp
** \verbatim
** Top contributors (to current version):
** Morgan Deters, Tim King, Dejan Jovanovic
** This file is part of the CVC4 project.
** Copyright (c) 2009-2019 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.\endverbatim
**
** \brief An expression node.
**
** An expression node.
**
** Instances of this class are generally referenced through
** cvc4::Node rather than by pointer; cvc4::Node maintains the
** reference count on NodeValue instances and
**/
#include "expr/node_value.h"
#include <sstream>
#include "expr/kind.h"
#include "expr/metakind.h"
#include "expr/node.h"
#include "options/base_options.h"
#include "options/language.h"
#include "options/options.h"
#include "printer/printer.h"
using namespace std;
namespace CVC4 {
namespace expr {
string NodeValue::toString() const {
stringstream ss;
OutputLanguage outlang = (this == &null()) ? language::output::LANG_AUTO
: options::outputLanguage();
toStream(ss, -1, false, false, outlang);
return ss.str();
}
void NodeValue::toStream(std::ostream& out, int toDepth, bool types, size_t dag,
OutputLanguage language) const {
// Ensure that this node value is live for the length of this call.
// It really breaks things badly if we don't have a nonzero ref
// count, even just for printing.
RefCountGuard guard(this);
Printer::getPrinter(language)->toStream(out, TNode(this), toDepth, types,
dag);
}
void NodeValue::printAst(std::ostream& out, int ind) const {
RefCountGuard guard(this);
indent(out, ind);
out << '(';
out << getKind();
if (getMetaKind() == kind::metakind::VARIABLE || getMetaKind() == kind::metakind::NULLARY_OPERATOR ) {
out << ' ' << getId();
} else if (getMetaKind() == kind::metakind::CONSTANT) {
out << ' ';
kind::metakind::NodeValueConstPrinter::toStream(out, this);
} else {
if (nv_begin() != nv_end()) {
for (const_nv_iterator child = nv_begin(); child != nv_end(); ++child) {
out << std::endl;
(*child)->printAst(out, ind + 1);
}
out << std::endl;
indent(out, ind);
}
}
out << ')';
}
} /* CVC4::expr namespace */
} /* CVC4 namespace */
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