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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"]);
-#if BOOST_VERSION >= 103700
- paths.insert(0, file.parent_path().string());
-#else
- paths.insert(0, file.branch_path().string());
-#endif
- sys_dict["path"] = paths;
-
-#if BOOST_VERSION >= 103700
- import(file.stem());
-#else
- import(file.string());
-#endif
- return true;
- }
-};
-
-extern shared_ptr<python_interpreter_t> python_session;
-
-} // namespace ledger
-
-#endif // HAVE_BOOST_PYTHON
-
-#endif // _PYINTERP_H