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[eudsl-tblgen] bind MLIRTableGen (#47)
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10 changes: 8 additions & 2 deletions
10
...eudsl-nbgen/includes/eudsl/type_casters.h → projects/common/eudsl/type_casters.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // Copyright (c) 2025. | ||
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| #pragma once | ||
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| #include <nanobind/nanobind.h> | ||
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| namespace eudsl { | ||
| template <typename T, typename... Ts> | ||
| struct non_copying_non_moving_class_ : nanobind::class_<T, Ts...> { | ||
| template <typename... Extra> | ||
| NB_INLINE non_copying_non_moving_class_(nanobind::handle scope, | ||
| const char *name, | ||
| const Extra &...extra) { | ||
| nanobind::detail::type_init_data d; | ||
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| d.flags = 0; | ||
| d.align = (uint8_t)alignof(typename nanobind::class_<T, Ts...>::Alias); | ||
| d.size = (uint32_t)sizeof(typename nanobind::class_<T, Ts...>::Alias); | ||
| d.name = name; | ||
| d.scope = scope.ptr(); | ||
| d.type = &typeid(T); | ||
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| if constexpr (!std::is_same_v<typename nanobind::class_<T, Ts...>::Base, | ||
| T>) { | ||
| d.base = &typeid(typename nanobind::class_<T, Ts...>::Base); | ||
| d.flags |= (uint32_t)nanobind::detail::type_init_flags::has_base; | ||
| } | ||
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| if constexpr (std::is_destructible_v<T>) { | ||
| d.flags |= (uint32_t)nanobind::detail::type_flags::is_destructible; | ||
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| if constexpr (!std::is_trivially_destructible_v<T>) { | ||
| d.flags |= (uint32_t)nanobind::detail::type_flags::has_destruct; | ||
| d.destruct = nanobind::detail::wrap_destruct<T>; | ||
| } | ||
| } | ||
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| if constexpr (nanobind::detail::has_shared_from_this_v<T>) { | ||
| d.flags |= (uint32_t)nanobind::detail::type_flags::has_shared_from_this; | ||
| d.keep_shared_from_this_alive = [](PyObject *self) noexcept { | ||
| if (auto sp = nanobind::inst_ptr<T>(self)->weak_from_this().lock()) { | ||
| nanobind::detail::keep_alive( | ||
| self, new auto(std::move(sp)), | ||
| [](void *p) noexcept { delete (decltype(sp) *)p; }); | ||
| return true; | ||
| } | ||
| return false; | ||
| }; | ||
| } | ||
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| (nanobind::detail::type_extra_apply(d, extra), ...); | ||
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| this->m_ptr = nanobind::detail::nb_type_new(&d); | ||
| } | ||
| }; | ||
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| template <typename NewReturn, typename Return, typename... Args> | ||
| constexpr auto coerceReturn(Return (*pf)(Args...)) noexcept { | ||
| return [&pf](Args &&...args) -> NewReturn { | ||
| return pf(std::forward<Args>(args)...); | ||
| }; | ||
| } | ||
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| template <typename NewReturn, typename Return, typename Class, typename... Args> | ||
| constexpr auto coerceReturn(Return (Class::*pmf)(Args...), | ||
| std::false_type = {}) noexcept { | ||
| return [&pmf](Class *cls, Args &&...args) -> NewReturn { | ||
| return (cls->*pmf)(std::forward<Args>(args)...); | ||
| }; | ||
| } | ||
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| /* | ||
| * If you get | ||
| * ``` | ||
| * Called object type 'void(MyClass::*)(vector<Item>&,int)' is not a function or | ||
| * function pointer | ||
| * ``` | ||
| * it's because you're calling a member function without | ||
| * passing the `this` pointer as the first arg | ||
| */ | ||
| template <typename NewReturn, typename Return, typename Class, typename... Args> | ||
| constexpr auto coerceReturn(Return (Class::*pmf)(Args...) const, | ||
| std::true_type) noexcept { | ||
| // copy the *pmf, not capture by ref | ||
| return [pmf](const Class &cls, Args &&...args) -> NewReturn { | ||
| return (cls.*pmf)(std::forward<Args>(args)...); | ||
| }; | ||
| } | ||
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| inline size_t wrap(Py_ssize_t i, size_t n) { | ||
| if (i < 0) | ||
| i += (Py_ssize_t)n; | ||
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| if (i < 0 || (size_t)i >= n) | ||
| throw nanobind::index_error(); | ||
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| return (size_t)i; | ||
| } | ||
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| } // namespace eudsl |
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