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/********************* */
/*! \file ast_printer.cpp
** \verbatim
** Original author: mdeters
** Major contributors: none
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief The pretty-printer interface for the AST output language
**
** The pretty-printer interface for the AST output language.
**/
#include "printer/ast/ast_printer.h"
#include "util/language.h" // for LANG_AST
#include "expr/node_manager.h" // for VarNameAttr
#include <iostream>
using namespace std;
namespace CVC4 {
namespace printer {
namespace ast {
std::ostream& AstPrinter::toStream(std::ostream& out, TNode n,
int toDepth, bool types) const {
// null
if(n.getKind() == kind::NULL_EXPR) {
out << "null";
return out;
}
// variable
if(n.getMetaKind() == kind::metakind::VARIABLE) {
if(n.getKind() != kind::VARIABLE &&
n.getKind() != kind::SORT_TYPE) {
out << n.getKind() << ':';
}
string s;
if(n.getAttribute(expr::VarNameAttr(), s)) {
out << s;
} else {
out << "var_" << n.getId();
}
if(types) {
// print the whole type, but not *its* type
out << ":";
n.getType().toStream(out, -1, false, language::output::LANG_AST);
}
return out;
}
out << '(' << n.getKind();
if(n.getMetaKind() == kind::metakind::CONSTANT) {
// constant
out << ' ';
kind::metakind::NodeValueConstPrinter::toStream(out, n);
} else {
// operator
if(n.getMetaKind() == kind::metakind::PARAMETERIZED) {
out << ' ';
if(toDepth != 0) {
n.getOperator().toStream(out, toDepth < 0 ? toDepth : toDepth - 1,
types, language::output::LANG_AST);
} else {
out << "(...)";
}
}
for(TNode::iterator i = n.begin(),
iend = n.end();
i != iend;
++i) {
if(i != iend) {
out << ' ';
}
if(toDepth != 0) {
(*i).toStream(out, toDepth < 0 ? toDepth : toDepth - 1,
types, language::output::LANG_AST);
} else {
out << "(...)";
}
}
}
out << ')';
return out;
}/* AstPrinter::toStream() */
}/* CVC4::printer::ast namespace */
}/* CVC4::printer namespace */
}/* CVC4 namespace */
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