140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
/*
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* Copyright (c) 2003-2009, John Wiegley. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of New Artisans LLC nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _PYINTERP_H
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#define _PYINTERP_H
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#include "session.h"
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#if defined(HAVE_BOOST_PYTHON)
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namespace ledger {
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class python_interpreter_t : public session_t
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{
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public:
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python::dict main_nspace;
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bool is_initialized;
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python_interpreter_t()
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: session_t(), main_nspace(), is_initialized(false) {
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TRACE_CTOR(python_interpreter_t, "");
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}
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virtual ~python_interpreter_t() {
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TRACE_DTOR(python_interpreter_t);
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if (is_initialized)
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Py_Finalize();
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}
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void initialize();
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python::object import(const string& name);
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enum py_eval_mode_t {
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PY_EVAL_EXPR,
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PY_EVAL_STMT,
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PY_EVAL_MULTI
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};
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python::object eval(std::istream& in,
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py_eval_mode_t mode = PY_EVAL_EXPR);
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python::object eval(const string& str,
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py_eval_mode_t mode = PY_EVAL_EXPR);
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python::object eval(const char * c_str,
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py_eval_mode_t mode = PY_EVAL_EXPR) {
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string str(c_str);
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return eval(str, mode);
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}
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class functor_t {
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functor_t();
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protected:
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python::object func;
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public:
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string name;
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functor_t(const string& _name, python::object _func)
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: func(_func), name(_name) {
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TRACE_CTOR(functor_t, "const string&, python::object");
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}
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functor_t(const functor_t& other)
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: func(other.func), name(other.name) {
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TRACE_CTOR(functor_t, "copy");
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}
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virtual ~functor_t() throw() {
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TRACE_DTOR(functor_t);
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}
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virtual value_t operator()(call_scope_t& args);
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};
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option_t<python_interpreter_t> * lookup_option(const char * p);
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virtual expr_t::ptr_op_t lookup(const string& name);
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OPTION_(python_interpreter_t, import_, DO_(scope) {
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interactive_t args(scope, "s");
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path file(args.get<string>(0));
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python::object module_sys = parent->import("sys");
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python::object sys_dict = module_sys.attr("__dict__");
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python::list paths(sys_dict["path"]);
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#if BOOST_VERSION >= 103700
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paths.insert(0, file.parent_path().string());
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#else
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paths.insert(0, file.branch_path().string());
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#endif
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sys_dict["path"] = paths;
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#if BOOST_VERSION >= 103700
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string name = file.filename();
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if (contains(name, ".py"))
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parent->import(file.stem());
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else
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parent->import(name);
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#else
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parent->import(file.leaf());
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#endif
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});
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};
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extern shared_ptr<python_interpreter_t> python_session;
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} // namespace ledger
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#endif // HAVE_BOOST_PYTHON
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#endif // _PYINTERP_H
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