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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"
#if defined(HAVE_BOOST_PYTHON)
namespace ledger {
class python_interpreter_t : public session_t
{
public:
python::dict main_nspace;
bool is_initialized;
python_interpreter_t()
: session_t(), main_nspace(), is_initialized(false) {
TRACE_CTOR(python_interpreter_t, "");
}
virtual ~python_interpreter_t() {
TRACE_DTOR(python_interpreter_t);
if (is_initialized)
Py_Finalize();
}
void initialize();
python::object import(const string& name);
enum py_eval_mode_t {
PY_EVAL_EXPR,
PY_EVAL_STMT,
PY_EVAL_MULTI
};
python::object eval(std::istream& in,
py_eval_mode_t mode = PY_EVAL_EXPR);
python::object eval(const string& str,
py_eval_mode_t mode = PY_EVAL_EXPR);
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:
python::object func;
public:
string name;
functor_t(const string& _name, python::object _func)
: func(_func), name(_name) {
TRACE_CTOR(functor_t, "const string&, python::object");
}
functor_t(const functor_t& other)
: func(other.func), name(other.name) {
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) {
path file(args[0].to_string());
python::object module_sys = import("sys");
python::object sys_dict = module_sys.attr("__dict__");
python::list paths(sys_dict["path"]);
paths.insert(0, file.parent_path().string());
sys_dict["path"] = paths;
import(file.stem());
return true;
}
};
extern shared_ptr<python_interpreter_t> python_session;
} // namespace ledger
#endif // HAVE_BOOST_PYTHON
#endif // _PYINTERP_H
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