| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_TINT_LANG_WGSL_AST_CLONE_CONTEXT_H_ |
| #define SRC_TINT_LANG_WGSL_AST_CLONE_CONTEXT_H_ |
| |
| #include <algorithm> |
| #include <functional> |
| #include <type_traits> |
| #include <utility> |
| #include <vector> |
| |
| #include "src/tint/lang/wgsl/ast/builder.h" |
| #include "src/tint/utils/containers/hashmap.h" |
| #include "src/tint/utils/containers/hashset.h" |
| #include "src/tint/utils/containers/vector.h" |
| #include "src/tint/utils/diagnostic/diagnostic.h" |
| #include "src/tint/utils/diagnostic/source.h" |
| #include "src/tint/utils/ice/ice.h" |
| #include "src/tint/utils/id/generation_id.h" |
| #include "src/tint/utils/macros/compiler.h" |
| #include "src/tint/utils/rtti/castable.h" |
| #include "src/tint/utils/symbol/symbol.h" |
| #include "src/tint/utils/traits/traits.h" |
| |
| // Forward declarations |
| namespace tint::ast { |
| class FunctionList; |
| class Node; |
| struct Type; |
| } // namespace tint::ast |
| |
| namespace tint::ast { |
| |
| /// CloneContext holds the state used while cloning AST nodes. |
| class CloneContext { |
| /// ParamTypeIsPtrOf<F, T> is true iff the first parameter of |
| /// F is a pointer of (or derives from) type T. |
| template <typename F, typename T> |
| static constexpr bool ParamTypeIsPtrOf = tint::traits:: |
| IsTypeOrDerived<typename std::remove_pointer<tint::traits::ParameterType<F, 0>>::type, T>; |
| |
| public: |
| /// SymbolTransform is a function that takes a symbol and returns a new |
| /// symbol. |
| using SymbolTransform = std::function<Symbol(Symbol)>; |
| |
| /// Constructor for cloning objects from `from` into `to`. |
| /// @param to the target Builder to clone into |
| /// @param from the generation ID of the source program being cloned |
| CloneContext(Builder* to, GenerationID from); |
| |
| /// Destructor |
| ~CloneContext(); |
| |
| /// Clones the Node or type::Type @p object into the Builder #dst if @p object is not null. If |
| /// @p object is null, then Clone() returns null. |
| /// |
| /// Clone() may use a function registered with ReplaceAll() to create a transformed version of |
| /// the object. See ReplaceAll() for more information. |
| /// |
| /// If the CloneContext is cloning from a Program to a Builder, then the Node or type::Type @p |
| /// object must be owned by the source program. |
| /// |
| /// @param object the type deriving from Node to clone |
| /// @return the cloned node |
| template <typename T> |
| const T* Clone(const T* object) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, object); |
| if (auto* cloned = CloneNode(object)) { |
| auto* out = CheckedCast<T>(cloned); |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(dst, out); |
| return out; |
| } |
| return nullptr; |
| } |
| |
| /// Clones the Node or type::Type @p object into the Builder #dst if @p object is not null. If |
| /// @p object is null, then Clone() returns null. |
| /// |
| /// Unlike Clone(), this method does not invoke or use any transformations registered by |
| /// ReplaceAll(). |
| /// |
| /// If the CloneContext is cloning from a Program to a Builder, then the Node or type::Type @p |
| /// object must be owned by the source program. |
| /// |
| /// @param a the type deriving from Node to clone |
| /// @return the cloned node |
| template <typename T> |
| const T* CloneWithoutTransform(const T* a) { |
| // If the input is nullptr, there's nothing to clone - just return nullptr. |
| if (a == nullptr) { |
| return nullptr; |
| } |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, a); |
| auto* c = a->Clone(*this); |
| return CheckedCast<T>(c); |
| } |
| |
| /// Clones the ast::Type `ty` into the Builder #dst |
| /// @param ty the AST type. |
| /// @return the cloned node |
| ast::Type Clone(const ast::Type& ty); |
| |
| /// Clones the Source `s` into #dst |
| /// TODO(bclayton) - Currently this 'clone' is a shallow copy. If/when |
| /// `Source.File`s are owned by the Program this should make a copy of the |
| /// file. |
| /// @param s the `Source` to clone |
| /// @return the cloned source |
| Source Clone(const Source& s) const { return s; } |
| |
| /// Clones the Symbol `s` into #dst |
| /// |
| /// The Symbol `s` must be owned by the source program. |
| /// |
| /// @param s the Symbol to clone |
| /// @return the cloned source |
| Symbol Clone(Symbol s); |
| |
| /// Clones each of the elements of the vector `v` into the Builder |
| /// #dst. |
| /// |
| /// All the elements of the vector `v` must be owned by the source program. |
| /// |
| /// @param v the vector to clone |
| /// @return the cloned vector |
| template <typename T, size_t N> |
| tint::Vector<T, N> Clone(const tint::Vector<T, N>& v) { |
| tint::Vector<T, N> out; |
| out.reserve(v.size()); |
| for (auto& el : v) { |
| out.Push(Clone(el)); |
| } |
| return out; |
| } |
| |
| /// Clones each of the elements of the vector `v` using the Builder |
| /// #dst, inserting any additional elements into the list that were registered |
| /// with calls to InsertBefore(). |
| /// |
| /// All the elements of the vector `v` must be owned by the source program. |
| /// |
| /// @param v the vector to clone |
| /// @return the cloned vector |
| template <typename T, size_t N> |
| tint::Vector<T*, N> Clone(const tint::Vector<T*, N>& v) { |
| tint::Vector<T*, N> out; |
| Clone(out, v); |
| return out; |
| } |
| |
| /// Clones each of the elements of the vector `from` into the vector `to`, |
| /// inserting any additional elements into the list that were registered with |
| /// calls to InsertBefore(). |
| /// |
| /// All the elements of the vector `from` must be owned by the source program. |
| /// |
| /// @param from the vector to clone |
| /// @param to the cloned result |
| template <typename T, size_t N> |
| void Clone(tint::Vector<T*, N>& to, const tint::Vector<T*, N>& from) { |
| to.Reserve(from.Length()); |
| |
| auto transforms = list_transforms_.Find(&from); |
| |
| if (transforms) { |
| for (auto& builder : transforms->insert_front_) { |
| to.Push(CheckedCast<T>(builder())); |
| } |
| for (auto& el : from) { |
| if (auto insert_before = transforms->insert_before_.Find(el)) { |
| for (auto& builder : *insert_before) { |
| to.Push(CheckedCast<T>(builder())); |
| } |
| } |
| if (!transforms->remove_.Contains(el)) { |
| to.Push(Clone(el)); |
| } |
| if (auto insert_after = transforms->insert_after_.Find(el)) { |
| for (auto& builder : *insert_after) { |
| to.Push(CheckedCast<T>(builder())); |
| } |
| } |
| } |
| for (auto& builder : transforms->insert_back_) { |
| to.Push(CheckedCast<T>(builder())); |
| } |
| } else { |
| for (auto& el : from) { |
| to.Push(Clone(el)); |
| |
| // Clone(el) may have updated the transformation list, adding an `insert_after` |
| // transform for `from`. |
| if (transforms) { |
| if (auto insert_after = transforms->insert_after_.Find(el)) { |
| for (auto& builder : *insert_after) { |
| to.Push(CheckedCast<T>(builder())); |
| } |
| } |
| } |
| } |
| |
| // Clone(el) may have updated the transformation list, adding an `insert_back_` |
| // transform for `from`. |
| if (transforms) { |
| for (auto& builder : transforms->insert_back_) { |
| to.Push(CheckedCast<T>(builder())); |
| } |
| } |
| } |
| } |
| |
| /// Clones each of the elements of the vector `v` into the Builder |
| /// #dst. |
| /// |
| /// All the elements of the vector `v` must be owned by the source program. |
| /// |
| /// @param v the vector to clone |
| /// @return the cloned vector |
| ast::FunctionList Clone(const ast::FunctionList& v); |
| |
| /// ReplaceAll() registers `replacer` to be called whenever the Clone() method |
| /// is called with a Node type that matches (or derives from) the type of |
| /// the single parameter of `replacer`. |
| /// The returned Node of `replacer` will be used as the replacement for |
| /// all references to the object that's being cloned. This returned Node |
| /// must be owned by the Program #dst. |
| /// |
| /// `replacer` must be function-like with the signature: `T* (T*)` |
| /// where `T` is a type deriving from Node. |
| /// |
| /// If `replacer` returns a nullptr then Clone() will call `T::Clone()` to |
| /// clone the object. |
| /// |
| /// Example: |
| /// |
| /// ``` |
| /// // Replace all ast::UintLiteralExpressions with the number 42 |
| /// CloneCtx ctx(&out, in); |
| /// ctx.ReplaceAll([&] (ast::UintLiteralExpression* l) { |
| /// return ctx.dst->create<ast::UintLiteralExpression>( |
| /// ctx.Clone(l->source), |
| /// ctx.Clone(l->type), |
| /// 42); |
| /// }); |
| /// ctx.Clone(); |
| /// ``` |
| /// |
| /// @warning a single handler can only be registered for any given type. |
| /// Attempting to register two handlers for the same type will result in an |
| /// ICE. |
| /// @warning The replacement object must be of the correct type for all |
| /// references of the original object. A type mismatch will result in an |
| /// assertion in debug builds, and undefined behavior in release builds. |
| /// @param replacer a function or function-like object with the signature |
| /// `T* (T*)`, where `T` derives from Node |
| /// @returns this CloneContext so calls can be chained |
| template <typename F> |
| traits::EnableIf<ParamTypeIsPtrOf<F, ast::Node>, CloneContext>& ReplaceAll(F&& replacer) { |
| using TPtr = traits::ParameterType<F, 0>; |
| using T = typename std::remove_pointer<TPtr>::type; |
| for (auto& transform : transforms_) { |
| bool already_registered = transform.typeinfo->Is(&tint::TypeInfo::Of<T>()) || |
| tint::TypeInfo::Of<T>().Is(transform.typeinfo); |
| if (TINT_UNLIKELY(already_registered)) { |
| TINT_ICE() << "ReplaceAll() called with a handler for type " |
| << TypeInfo::Of<T>().name |
| << " that is already handled by a handler for type " |
| << transform.typeinfo->name; |
| return *this; |
| } |
| } |
| CloneableTransform transform; |
| transform.typeinfo = &TypeInfo::Of<T>(); |
| transform.function = [=](const ast::Node* in) { return replacer(in->As<T>()); }; |
| transforms_.Push(std::move(transform)); |
| return *this; |
| } |
| |
| /// ReplaceAll() registers `replacer` to be called whenever the Clone() method |
| /// is called with a Symbol. |
| /// The returned symbol of `replacer` will be used as the replacement for |
| /// all references to the symbol that's being cloned. This returned Symbol |
| /// must be owned by the Program #dst. |
| /// @param replacer a function the signature `Symbol(Symbol)`. |
| /// @warning a SymbolTransform can only be registered once. Attempting to |
| /// register a SymbolTransform more than once will result in an ICE. |
| /// @returns this CloneContext so calls can be chained |
| CloneContext& ReplaceAll(const SymbolTransform& replacer) { |
| if (TINT_UNLIKELY(symbol_transform_)) { |
| TINT_ICE() << "ReplaceAll(const SymbolTransform&) called multiple times on the same " |
| "CloneContext"; |
| return *this; |
| } |
| symbol_transform_ = replacer; |
| return *this; |
| } |
| |
| /// Replace replaces all occurrences of `what` in the source program with the pointer `with` |
| /// in #dst when calling Clone(). |
| /// [DEPRECATED]: This function cannot handle nested replacements. Use the |
| /// overload of Replace() that take a function for the `WITH` argument. |
| /// @param what a pointer to the object in the source program that will be replaced with |
| /// `with` |
| /// @param with a pointer to the replacement object owned by #dst that will be |
| /// used as a replacement for `what` |
| /// @warning The replacement object must be of the correct type for all |
| /// references of the original object. A type mismatch will result in an |
| /// assertion in debug builds, and undefined behavior in release builds. |
| /// @returns this CloneContext so calls can be chained |
| template <typename WHAT, typename WITH, typename = traits::EnableIfIsType<WITH, ast::Node>> |
| CloneContext& Replace(const WHAT* what, const WITH* with) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, what); |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(dst, with); |
| replacements_.Replace(what, [with]() -> const ast::Node* { return with; }); |
| return *this; |
| } |
| |
| /// Replace replaces all occurrences of `what` in the source program with the result of the |
| /// function `with` in #dst when calling Clone(). `with` will be called each |
| /// time `what` is cloned by this context. If `what` is not cloned, then |
| /// `with` may never be called. |
| /// @param what a pointer to the object in the source program that will be replaced with |
| /// `with` |
| /// @param with a function that takes no arguments and returns a pointer to |
| /// the replacement object owned by #dst. The returned pointer will be used as |
| /// a replacement for `what`. |
| /// @warning The replacement object must be of the correct type for all |
| /// references of the original object. A type mismatch will result in an |
| /// assertion in debug builds, and undefined behavior in release builds. |
| /// @returns this CloneContext so calls can be chained |
| template <typename WHAT, typename WITH, typename = std::invoke_result_t<WITH>> |
| CloneContext& Replace(const WHAT* what, WITH&& with) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, what); |
| replacements_.Replace(what, with); |
| return *this; |
| } |
| |
| /// Removes @p object from the cloned copy of @p vector. |
| /// @param vector the vector in the source program |
| /// @param object a pointer to the object in the source program that will be omitted from |
| /// the cloned vector. |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename OBJECT> |
| CloneContext& Remove(const Vector<T, N>& vector, OBJECT* object) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, object); |
| if (TINT_UNLIKELY((std::find(vector.begin(), vector.end(), object) == vector.end()))) { |
| TINT_ICE() << "CloneContext::Remove() vector does not contain object"; |
| return *this; |
| } |
| |
| list_transforms_.GetOrZero(&vector)->remove_.Add(object); |
| return *this; |
| } |
| |
| /// Inserts @p object before any other objects of @p vector, when the vector is cloned. |
| /// @param vector the vector in the source program |
| /// @param object a pointer to the object in #dst that will be inserted at the |
| /// front of the vector |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename OBJECT> |
| CloneContext& InsertFront(const Vector<T, N>& vector, OBJECT* object) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(dst, object); |
| return InsertFront(vector, [object] { return object; }); |
| } |
| |
| /// Inserts a lazily built object before any other objects of @p vector, when the vector is |
| /// cloned. |
| /// @param vector the vector in the source program |
| /// @param builder a builder of the object that will be inserted at the front of the vector. |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename BUILDER> |
| CloneContext& InsertFront(const tint::Vector<T, N>& vector, BUILDER&& builder) { |
| list_transforms_.GetOrZero(&vector)->insert_front_.Push(std::forward<BUILDER>(builder)); |
| return *this; |
| } |
| |
| /// Inserts @p object after any other objects of @p vector, when the vector is cloned. |
| /// @param vector the vector in the source program |
| /// @param object a pointer to the object in #dst that will be inserted at the |
| /// end of the vector |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename OBJECT> |
| CloneContext& InsertBack(const Vector<T, N>& vector, OBJECT* object) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(dst, object); |
| return InsertBack(vector, [object] { return object; }); |
| } |
| |
| /// Inserts a lazily built object after any other objects of @p vector, when the vector is |
| /// cloned. |
| /// @param vector the vector in the source program |
| /// @param builder the builder of the object in #dst that will be inserted at the end of the |
| /// vector. |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename BUILDER> |
| CloneContext& InsertBack(const tint::Vector<T, N>& vector, BUILDER&& builder) { |
| list_transforms_.GetOrZero(&vector)->insert_back_.Push(std::forward<BUILDER>(builder)); |
| return *this; |
| } |
| |
| /// Inserts @p object before @p before whenever @p vector is cloned. |
| /// @param vector the vector in the source program |
| /// @param before a pointer to the object in the source program |
| /// @param object a pointer to the object in #dst that will be inserted before |
| /// any occurrence of the clone of @p before |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename BEFORE, typename OBJECT> |
| CloneContext& InsertBefore(const tint::Vector<T, N>& vector, |
| const BEFORE* before, |
| const OBJECT* object) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, before); |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(dst, object); |
| if (TINT_UNLIKELY((std::find(vector.begin(), vector.end(), before) == vector.end()))) { |
| TINT_ICE() << "CloneContext::InsertBefore() vector does not contain before"; |
| return *this; |
| } |
| |
| list_transforms_.GetOrZero(&vector)->insert_before_.GetOrZero(before)->Push( |
| [object] { return object; }); |
| return *this; |
| } |
| |
| /// Inserts a lazily created object before @p before whenever @p vector is cloned. |
| /// @param vector the vector in the source program |
| /// @param before a pointer to the object in the source program |
| /// @param builder the builder of the object in #dst that will be inserted before any occurrence |
| /// of the clone of @p before |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, |
| size_t N, |
| typename BEFORE, |
| typename BUILDER, |
| typename _ = std::enable_if_t<!std::is_pointer_v<std::decay_t<BUILDER>>>> |
| CloneContext& InsertBefore(const tint::Vector<T, N>& vector, |
| const BEFORE* before, |
| BUILDER&& builder) { |
| list_transforms_.GetOrZero(&vector)->insert_before_.GetOrZero(before)->Push( |
| std::forward<BUILDER>(builder)); |
| return *this; |
| } |
| |
| /// Inserts @p object after @p after whenever @p vector is cloned. |
| /// @param vector the vector in the source program |
| /// @param after a pointer to the object in the source program |
| /// @param object a pointer to the object in #dst that will be inserted after |
| /// any occurrence of the clone of @p after |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, size_t N, typename AFTER, typename OBJECT> |
| CloneContext& InsertAfter(const tint::Vector<T, N>& vector, |
| const AFTER* after, |
| const OBJECT* object) { |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(src_id, after); |
| TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID(dst, object); |
| if (TINT_UNLIKELY((std::find(vector.begin(), vector.end(), after) == vector.end()))) { |
| TINT_ICE() << "CloneContext::InsertAfter() vector does not contain after"; |
| return *this; |
| } |
| |
| list_transforms_.GetOrZero(&vector)->insert_after_.GetOrZero(after)->Push( |
| [object] { return object; }); |
| return *this; |
| } |
| |
| /// Inserts a lazily created object after @p after whenever @p vector is cloned. |
| /// @param vector the vector in the source program |
| /// @param after a pointer to the object in the source program |
| /// @param builder the builder of the object in #dst that will be inserted after any occurrence |
| /// of the clone of @p after |
| /// @returns this CloneContext so calls can be chained |
| template <typename T, |
| size_t N, |
| typename AFTER, |
| typename BUILDER, |
| typename _ = std::enable_if_t<!std::is_pointer_v<std::decay_t<BUILDER>>>> |
| CloneContext& InsertAfter(const tint::Vector<T, N>& vector, |
| const AFTER* after, |
| BUILDER&& builder) { |
| list_transforms_.GetOrZero(&vector)->insert_after_.GetOrZero(after)->Push( |
| std::forward<BUILDER>(builder)); |
| return *this; |
| } |
| |
| /// The target Builder to clone into. |
| Builder* const dst; |
| |
| /// The source Program generation identifier. |
| GenerationID const src_id; |
| |
| private: |
| struct CloneableTransform { |
| /// Constructor |
| CloneableTransform(); |
| /// Copy constructor |
| /// @param other the CloneableTransform to copy |
| CloneableTransform(const CloneableTransform& other); |
| /// Destructor |
| ~CloneableTransform(); |
| |
| // TypeInfo of the Node that the transform operates on |
| const TypeInfo* typeinfo; |
| std::function<const ast::Node*(const ast::Node*)> function; |
| }; |
| |
| /// A vector of const ast::Node* |
| using NodeBuilderList = Vector<std::function<const ast::Node*()>, 4>; |
| |
| /// Transformations to be applied to a list (vector) |
| struct ListTransforms { |
| /// A map of object in the source program to omit when cloned into #dst. |
| Hashset<const ast::Node*, 4> remove_; |
| |
| /// A list of objects in #dst to insert before any others when the vector is cloned. |
| NodeBuilderList insert_front_; |
| |
| /// A list of objects in #dst to insert after all others when the vector is cloned. |
| NodeBuilderList insert_back_; |
| |
| /// A map of object in the source program to the list of cloned objects in #dst. |
| /// Clone(const Vector<T*>& v) will use this to insert the map-value |
| /// list into the target vector before cloning and inserting the map-key. |
| Hashmap<const ast::Node*, NodeBuilderList, 4> insert_before_; |
| |
| /// A map of object in the source program to the list of cloned objects in #dst. |
| /// Clone(const Vector<T*>& v) will use this to insert the map-value |
| /// list into the target vector after cloning and inserting the map-key. |
| Hashmap<const ast::Node*, NodeBuilderList, 4> insert_after_; |
| }; |
| |
| CloneContext(const CloneContext&) = delete; |
| CloneContext& operator=(const CloneContext&) = delete; |
| |
| /// Cast `obj` from type `FROM` to type `TO`, returning the cast object. |
| /// Reports an internal compiler error if the cast failed. |
| template <typename TO, typename FROM> |
| const TO* CheckedCast(const FROM* obj) { |
| if (obj == nullptr) { |
| return nullptr; |
| } |
| const TO* cast = obj->template As<TO>(); |
| if (TINT_LIKELY(cast)) { |
| return cast; |
| } |
| CheckedCastFailure(obj, tint::TypeInfo::Of<TO>()); |
| return nullptr; |
| } |
| |
| /// Clones a Node object, using any replacements or transforms that have |
| /// been configured. |
| const ast::Node* CloneNode(const ast::Node* object); |
| |
| /// Adds an error diagnostic to Diagnostics() that the cloned object was not |
| /// of the expected type. |
| void CheckedCastFailure(const ast::Node* got, const TypeInfo& expected); |
| |
| /// @returns the diagnostic list of #dst |
| diag::List& Diagnostics() const; |
| |
| /// A map of object in the source program to functions that create their replacement in #dst |
| Hashmap<const ast::Node*, std::function<const ast::Node*()>, 8> replacements_; |
| |
| /// A map of symbol in the source program to their cloned equivalent in #dst |
| Hashmap<Symbol, Symbol, 32> cloned_symbols_; |
| |
| /// Node transform functions registered with ReplaceAll() |
| Vector<CloneableTransform, 8> transforms_; |
| |
| /// Transformations to apply to vectors |
| Hashmap<const void*, ListTransforms, 4> list_transforms_; |
| |
| /// Symbol transform registered with ReplaceAll() |
| SymbolTransform symbol_transform_; |
| }; |
| |
| } // namespace tint::ast |
| |
| #endif // SRC_TINT_LANG_WGSL_AST_CLONE_CONTEXT_H_ |