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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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Leonardo de Moura 2012-10-02 11:35:25 -07:00
parent 3f9edad676
commit e9eab22e5c
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lib/expr2dot.cpp Normal file
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/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
expr2dot.cpp
Abstract:
<abstract>
Author:
Leonardo de Moura (leonardo) 2008-03-07.
Revision History:
--*/
#include"expr2dot.h"
#include"for_each_expr.h"
class dot_printer {
std::ostream & m_out;
ast_manager & m_manager;
bool m_proofs_only;
public:
dot_printer(std::ostream & out, ast_manager & m, bool proofs):
m_out(out),
m_manager(m),
m_proofs_only(proofs) {
}
char const * get_color(app * n) {
if (m_manager.is_unit_resolution(n))
return "blue";
else if (m_manager.is_lemma(n))
return "gold";
else if (m_manager.is_transitivity(n))
return "red";
else if (m_manager.is_monotonicity(n))
return "green";
else
return "black";
}
void operator()(var * n) {
if (!m_proofs_only) {
m_out << n->get_id() << "[label=\"\",shape=circle];\n";
}
}
void operator()(quantifier * n) {
if (!m_proofs_only) {
m_out << n->get_id() << "[label=\"\",shape=circle,color=gray];\n";
m_out << n->get_expr()->get_id() << " -> " << n->get_id() << ";\n";
}
}
void operator()(app * n) {
if (!m_proofs_only || m_manager.is_proof(n)) {
char const * c = get_color(n);
m_out << n->get_id() << "[label=\"\",shape=circle,color=" << c << "];\n";
if (m_proofs_only) {
unsigned num = m_manager.get_num_parents(n);
for (unsigned i = 0; i < num; i++)
m_out << m_manager.get_parent(n, i)->get_id() << " -> " << n->get_id() << " [color=" << c << "];\n";
}
else {
unsigned num = n->get_num_args();
for (unsigned i = 0; i < num; i++)
m_out << n->get_arg(i)->get_id() << " -> " << n->get_id() << " [color=" << c << "];\n";
}
}
}
};
void expr2dot(std::ostream & out, expr * n, ast_manager & m, bool proofs) {
out << "digraph \"ast\" {\n";
dot_printer p(out, m, proofs);
for_each_expr(p, n);
out << "}\n";
}