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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2012-2021 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Octave is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Octave; see the file COPYING. If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
#if defined (HAVE_CONFIG_H)
# include "config.h"
#endif
#include <algorithm>
#include <iomanip>
#include "cdef-class.h"
#include "cdef-manager.h"
#include "cdef-utils.h"
#include "errwarn.h"
#include "interpreter-private.h"
#include "interpreter.h"
#include "load-path.h"
#include "ov-builtin.h"
#include "ov-classdef.h"
#include "ov-fcn-handle.h"
#include "ov-usr-fcn.h"
#include "parse.h"
#include "pt-assign.h"
#include "pt-classdef.h"
#include "pt-idx.h"
#include "pt-misc.h"
#include "pt-stmt.h"
// Define to 1 to enable debugging statements.
#define DEBUG_TRACE 0
namespace octave
{
void
cdef_package::cdef_package_rep::install_class (const cdef_class& cls,
const std::string& nm)
{
class_map[nm] = cls;
member_count++;
}
void
cdef_package::cdef_package_rep::install_function (const octave_value& fcn,
const std::string& nm)
{
function_map[nm] = fcn;
}
void
cdef_package::cdef_package_rep::install_package (const cdef_package& pack,
const std::string& nm)
{
package_map[nm] = pack;
member_count++;
}
template <typename T1, typename T2>
Cell
map2Cell (const std::map<T1, T2>& m)
{
Cell retval (1, m.size ());
int i = 0;
for (auto it = m.begin (); it != m.end (); ++it, ++i)
retval(i) = to_ov (it->second);
return retval;
}
Cell
cdef_package::cdef_package_rep::get_classes (void) const
{
return map2Cell (class_map);
}
Cell
cdef_package::cdef_package_rep::get_functions (void) const
{
return map2Cell (function_map);
}
Cell
cdef_package::cdef_package_rep::get_packages (void) const
{
return map2Cell (package_map);
}
octave_value
cdef_package::cdef_package_rep::find (const std::string& nm)
{
std::string symbol_name = get_name () + '.' + nm;
interpreter& interp
= __get_interpreter__ ("cdef_package::cdef_package_rep::find");
return interp.find (symbol_name);
}
octave_value_list
cdef_package::cdef_package_rep::meta_subsref
(const std::string& type, const std::list<octave_value_list>& idx,
int nargout)
{
octave_value_list retval;
switch (type[0])
{
case '.':
{
if (idx.front ().length () != 1)
error ("invalid meta.package indexing");
std::string nm = idx.front ()(0).xstring_value ("invalid meta.package indexing, expected a symbol name");
#if DEBUG_TRACE
std::cerr << "meta.package query: " << nm << std::endl;
#endif
octave_value o = find (nm);
if (! o.is_defined ())
error ("member '%s' in package '%s' does not exist",
nm.c_str (), get_name ().c_str ());
if (o.is_function ())
{
octave_function *fcn = o.function_value ();
// NOTE: the case where the package query is the last
// part of this subsref index is handled in the parse
// tree, because there is some logic to handle magic
// "end" that makes it impossible to execute the
// function call at this stage.
if (type.size () > 1
&& ! fcn->accepts_postfix_index (type[1]))
{
octave_value_list tmp_args;
retval = feval (o, tmp_args, nargout);
}
else
retval(0) = o;
if (type.size () > 1 && idx.size () > 1)
retval = retval(0).next_subsref (nargout, type,
idx, 1);
}
else if (type.size () > 1 && idx.size () > 1)
retval = o.next_subsref (nargout, type, idx, 1);
else
retval(0) = o;
}
break;
default:
error ("invalid meta.package indexing");
break;
}
return retval;
}
void
cdef_package::cdef_package_rep::meta_release (void)
{
// FIXME: Do we really want to unregister the package, as it
// could still be referenced by classes or sub-packages?
// If the package object is recreated later on, it won't
// match the one already referenced by those classes or
// sub-packages.
cdef_manager& cdm
= __get_cdef_manager__ ("cdef_package::cdef_package_rep::meta_release");
// Don't delete the "meta" package.
if (this != cdm.meta ().get_rep ())
cdm.unregister_package (wrap ());
}
}
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