| // Copyright 2023 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_RESOLVER_INCOMPLETE_TYPE_H_ |
| #define SRC_TINT_LANG_WGSL_RESOLVER_INCOMPLETE_TYPE_H_ |
| |
| #include <string> |
| |
| #include "src/tint/lang/core/builtin_type.h" |
| #include "src/tint/lang/core/type/type.h" |
| |
| namespace tint::resolver { |
| |
| /// Represents a expression that resolved to the name of a type without explicit template arguments. |
| /// This is a placeholder type that on successful resolving, is replaced with the type built using |
| /// the inferred template arguments. |
| /// For example, given the expression `vec3(1i, 2i, 3i)`: |
| /// * The IdentifierExpression for `vec3` is resolved first, to an IncompleteType as it does not |
| /// know the vector element type. |
| /// * Next, the CallExpression replaces the IncompleteType with a core::type::Vector once it can |
| /// infer the element type from the call's arguments. |
| class IncompleteType : public Castable<IncompleteType, core::type::Type> { |
| public: |
| /// Constructor |
| /// @param b the incomplete builtin type |
| explicit IncompleteType(core::BuiltinType b); |
| |
| /// Destructor |
| ~IncompleteType() override; |
| |
| /// The incomplete builtin type |
| const core::BuiltinType builtin = core::BuiltinType::kUndefined; |
| |
| /// @copydoc core::type::Type::FriendlyName |
| std::string FriendlyName() const override; |
| |
| /// @copydoc core::type::Type::Size |
| uint32_t Size() const override; |
| |
| /// @copydoc core::type::Type::Align |
| uint32_t Align() const override; |
| |
| /// @copydoc core::type::Type::Clone |
| core::type::Type* Clone(core::type::CloneContext& ctx) const override; |
| |
| /// @copydoc core::type::Type::Elements |
| core::type::TypeAndCount Elements(const Type* type_if_invalid = nullptr, |
| uint32_t count_if_invalid = 0) const override; |
| |
| /// @copydoc core::type::Type::Element |
| const Type* Element(uint32_t index) const override; |
| |
| /// @copydoc core::type::UniqueNode::Equals |
| bool Equals(const UniqueNode& other) const override; |
| }; |
| |
| } // namespace tint::resolver |
| |
| #endif // SRC_TINT_LANG_WGSL_RESOLVER_INCOMPLETE_TYPE_H_ |