| // 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_AST_ARRAY_H_ |
| #define SRC_TINT_AST_ARRAY_H_ |
| |
| #include <string> |
| |
| #include "src/tint/ast/attribute.h" |
| #include "src/tint/ast/type.h" |
| |
| // Forward declarations |
| namespace tint::ast { |
| class Expression; |
| } // namespace tint::ast |
| |
| namespace tint::ast { |
| |
| /// An array type. If size is zero then it is a runtime array. |
| class Array final : public Castable<Array, Type> { |
| public: |
| /// Constructor |
| /// @param pid the identifier of the program that owns this node |
| /// @param nid the unique node identifier |
| /// @param src the source of this node |
| /// @param subtype the type of the array elements |
| /// @param count the number of elements in the array |
| /// @param attributes the array attributes |
| /// @note a runtime-sized array is represented by a null count and a non-null type |
| Array(ProgramID pid, |
| NodeID nid, |
| const Source& src, |
| const Type* subtype, |
| const Expression* count, |
| AttributeList attributes); |
| /// Move constructor |
| Array(Array&&); |
| ~Array() override; |
| |
| /// @returns true if this is a runtime array. |
| /// i.e. the size is determined at runtime |
| bool IsRuntimeArray() const { return type != nullptr && count == nullptr; } |
| |
| /// @param symbols the program's symbol table |
| /// @returns the name for this type that closely resembles how it would be |
| /// declared in WGSL. |
| std::string FriendlyName(const SymbolTable& symbols) const override; |
| |
| /// Clones this type and all transitive types using the `CloneContext` `ctx`. |
| /// @param ctx the clone context |
| /// @return the newly cloned type |
| const Array* Clone(CloneContext* ctx) const override; |
| |
| /// the array element type |
| const Type* const type; |
| |
| /// the array size in elements, or nullptr for a runtime array |
| const Expression* const count; |
| |
| /// the array attributes |
| const AttributeList attributes; |
| }; |
| |
| } // namespace tint::ast |
| |
| #endif // SRC_TINT_AST_ARRAY_H_ |