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https://github.com/saitohirga/WSJT-X.git
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110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
// Copyright Stefan Seefeld 2005.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/python/exec.hpp>
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#include <boost/python/borrowed.hpp>
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#include <boost/python/dict.hpp>
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#include <boost/python/extract.hpp>
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#include <boost/python/handle.hpp>
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namespace boost
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{
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namespace python
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{
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object BOOST_PYTHON_DECL eval(str string, object global, object local)
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{
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// Set suitable default values for global and local dicts.
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if (global.is_none())
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{
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if (PyObject *g = PyEval_GetGlobals())
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global = object(detail::borrowed_reference(g));
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else
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global = dict();
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}
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if (local.is_none()) local = global;
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// should be 'char const *' but older python versions don't use 'const' yet.
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char *s = python::extract<char *>(string);
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PyObject* result = PyRun_String(s, Py_eval_input, global.ptr(), local.ptr());
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if (!result) throw_error_already_set();
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return object(detail::new_reference(result));
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}
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object BOOST_PYTHON_DECL exec(str string, object global, object local)
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{
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// Set suitable default values for global and local dicts.
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if (global.is_none())
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{
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if (PyObject *g = PyEval_GetGlobals())
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global = object(detail::borrowed_reference(g));
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else
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global = dict();
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}
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if (local.is_none()) local = global;
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// should be 'char const *' but older python versions don't use 'const' yet.
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char *s = python::extract<char *>(string);
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PyObject* result = PyRun_String(s, Py_file_input, global.ptr(), local.ptr());
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if (!result) throw_error_already_set();
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return object(detail::new_reference(result));
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}
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object BOOST_PYTHON_DECL exec_statement(str string, object global, object local)
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{
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// Set suitable default values for global and local dicts.
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if (global.is_none())
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{
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if (PyObject *g = PyEval_GetGlobals())
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global = object(detail::borrowed_reference(g));
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else
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global = dict();
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}
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if (local.is_none()) local = global;
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// should be 'char const *' but older python versions don't use 'const' yet.
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char *s = python::extract<char *>(string);
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PyObject* result = PyRun_String(s, Py_single_input, global.ptr(), local.ptr());
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if (!result) throw_error_already_set();
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return object(detail::new_reference(result));
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}
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// Execute python source code from file filename.
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// global and local are the global and local scopes respectively,
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// used during execution.
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object BOOST_PYTHON_DECL exec_file(str filename, object global, object local)
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{
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// Set suitable default values for global and local dicts.
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if (global.is_none())
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{
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if (PyObject *g = PyEval_GetGlobals())
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global = object(detail::borrowed_reference(g));
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else
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global = dict();
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}
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if (local.is_none()) local = global;
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// should be 'char const *' but older python versions don't use 'const' yet.
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char *f = python::extract<char *>(filename);
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// Let python open the file to avoid potential binary incompatibilities.
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#if PY_VERSION_HEX >= 0x03040000
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FILE *fs = _Py_fopen(f, "r");
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#elif PY_VERSION_HEX >= 0x03000000
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PyObject *fo = Py_BuildValue("s", f);
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FILE *fs = _Py_fopen(fo, "r");
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Py_DECREF(fo);
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#else
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PyObject *pyfile = PyFile_FromString(f, const_cast<char*>("r"));
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if (!pyfile) throw std::invalid_argument(std::string(f) + " : no such file");
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python::handle<> file(pyfile);
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FILE *fs = PyFile_AsFile(file.get());
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#endif
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PyObject* result = PyRun_File(fs,
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f,
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Py_file_input,
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global.ptr(), local.ptr());
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if (!result) throw_error_already_set();
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return object(detail::new_reference(result));
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}
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} // namespace boost::python
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} // namespace boost
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