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/*
* Copyright (c) 2003-2009, John Wiegley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of New Artisans LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _PYINTERP_H
#define _PYINTERP_H
#include "scope.h"
#include "session.h"
#include <boost/python.hpp>
#include <Python.h>
namespace ledger {
class python_interpreter_t : public session_t
{
public:
boost::python::dict main_nspace;
python_interpreter_t();
virtual ~python_interpreter_t() {
TRACE_DTOR(python_interpreter_t);
Py_Finalize();
}
boost::python::object import(const string& name);
enum py_eval_mode_t {
PY_EVAL_EXPR,
PY_EVAL_STMT,
PY_EVAL_MULTI
};
boost::python::object eval(std::istream& in,
py_eval_mode_t mode = PY_EVAL_EXPR);
boost::python::object eval(const string& str,
py_eval_mode_t mode = PY_EVAL_EXPR);
boost::python::object eval(const char * c_str,
py_eval_mode_t mode = PY_EVAL_EXPR) {
string str(c_str);
return eval(str, mode);
}
class functor_t {
functor_t();
protected:
boost::python::object func;
public:
functor_t(const string&, boost::python::object _func) : func(_func) {
TRACE_CTOR(functor_t, "const string&, boost::python::object");
}
functor_t(const functor_t& other) : func(other.func) {
TRACE_CTOR(functor_t, "copy");
}
virtual ~functor_t() throw() {
TRACE_DTOR(functor_t);
}
virtual value_t operator()(call_scope_t& args);
};
virtual expr_t::ptr_op_t lookup(const string& name);
value_t option_import_(call_scope_t& args) {
import(args[0].to_string());
return true;
}
class lambda_t : public functor_t {
lambda_t();
public:
lambda_t(boost::python::object code) : functor_t("<lambda>", code) {
TRACE_CTOR(functor_t, "boost::python::object");
}
lambda_t(const lambda_t& other) : functor_t(other) {
TRACE_CTOR(lambda_t, "copy");
}
virtual ~lambda_t() throw() {
TRACE_DTOR(lambda_t);
}
virtual value_t operator()(call_scope_t& args);
};
};
} // namespace ledger
#endif // _PYINTERP_H
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