| // 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_READER_READER_H_ |
| #define SRC_TINT_READER_READER_H_ |
| |
| #include <string> |
| |
| #include "src/tint/lang/wgsl/program/program.h" |
| |
| namespace tint::reader { |
| |
| /// Base class for input readers |
| class Reader { |
| public: |
| virtual ~Reader(); |
| |
| /// Parses the input data |
| /// @returns true if the parse was successful |
| virtual bool Parse() = 0; |
| |
| /// @returns true if an error was encountered. |
| bool has_error() const { return diags_.contains_errors(); } |
| |
| /// @returns the parser error string |
| std::string error() const { |
| diag::Formatter formatter{{false, false, false, false}}; |
| return formatter.format(diags_); |
| } |
| |
| /// @returns the full list of diagnostic messages. |
| const diag::List& diagnostics() const { return diags_; } |
| |
| /// @returns the program. The program builder in the parser will be reset |
| /// after this. |
| virtual Program program() = 0; |
| |
| protected: |
| /// Constructor |
| Reader(); |
| |
| /// Sets the diagnostic messages |
| /// @param diags the list of diagnostic messages |
| void set_diagnostics(const diag::List& diags) { diags_ = diags; } |
| |
| /// All diagnostic messages from the reader. |
| diag::List diags_; |
| }; |
| |
| } // namespace tint::reader |
| |
| #endif // SRC_TINT_READER_READER_H_ |