mirror of
https://github.com/lief-project/LIEF
synced 2026-06-08 15:30:44 +00:00
Romain Thomas
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/* Copyright 2017 - 2024 R. Thomas
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* Copyright 2017 - 2024 Quarkslab
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef PY_LIEF_ITERATORS_H
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#define PY_LIEF_ITERATORS_H
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#include "nanobind/nanobind.h"
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#include "nanobind/make_iterator.h"
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#include <string>
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namespace nb = nanobind;
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namespace LIEF::py {
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template<class T>
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void init_ref_iterator(nanobind::handle& m, const char* it_name) {
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using ElementTy = typename T::value_type;
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if (auto type = nb::type<T>(); type.is_valid()) {
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m.attr(it_name) = type;
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return;
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}
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nb::class_<T>(m, it_name)
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.def_prop_ro_static("__doc__",
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[] (const nb::object&) -> std::string {
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using namespace std::literals;
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if (auto type = nb::type<ElementTy>(); type.is_valid()) {
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nb::str name = nb::type_name(type);
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return "Iterator over :class:`"s + name.c_str() + "`";
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}
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return "";
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})
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.def("__getitem__",
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[] (T& v, Py_ssize_t i) -> typename T::reference {
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const size_t size = v.size();
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if (i < 0) {
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i += static_cast<Py_ssize_t>(size);
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}
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if (i < 0 || static_cast<size_t>(i) >= size) {
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throw nb::index_error();
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}
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return v[i];
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},
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nb::rv_policy::reference_internal)
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.def("__len__",
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[] (T& v) {
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return v.size();
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})
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.def("__iter__",
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[] (const T& v) {
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return v;
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}, nb::rv_policy::reference_internal)
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.def("__next__",
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[] (T& v) -> typename T::reference {
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if (v == std::end(v)) {
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throw nb::stop_iteration();
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}
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auto& value = *v;
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++v;
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return value;
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}, nb::rv_policy::reference_internal);
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}
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}
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#endif
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