Function bjam_backtrace

v2/engine/builtins.c:2239–2273

PyObject * bjam_backtrace( PyObject * self, PyObject * args )
{
    PyObject     * result = PyList_New( 0 );
    struct frame * f = frame_before_python_call;

    for ( ; f = f->prev; )
    {
        PyObject   * tuple = PyTuple_New( 4 );
        char const * file;
        int          line;
        char         buf[ 32 ];
        string module_name[ 1 ];

        get_source_line( f, &file, &line );
        sprintf( buf, "%d", line );
        string_new( module_name );
        if ( f->module->name )
        {
            string_append( module_name, object_str( f->module->name ) );
            string_append( module_name, "." );
        }

        /* PyTuple_SetItem steals reference. */
        PyTuple_SetItem( tuple, 0, PyString_FromString( file ) );
        PyTuple_SetItem( tuple, 1, PyString_FromString( buf ) );
        PyTuple_SetItem( tuple, 2, PyString_FromString( module_name->value ) );
        PyTuple_SetItem( tuple, 3, PyString_FromString( f->rulename ) );

        string_free( module_name );

        PyList_Append( result, tuple );
        Py_DECREF( tuple );
    }
    return result;
}

PyObject * bjam_caller( PyObject * self, PyObject * args )
{