| // Copyright 2017-2020 The Verible 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. |
| |
| #include "common/formatting/verification.h" |
| |
| #include <sstream> |
| |
| #include "absl/strings/str_cat.h" |
| #include "common/strings/diff.h" |
| |
| namespace verible { |
| |
| absl::Status ReformatMustMatch(absl::string_view original_text, |
| const LineNumberSet& lines, |
| absl::string_view formatted_text, |
| absl::string_view reformatted_text) { |
| if (reformatted_text != formatted_text) { |
| const verible::LineDiffs formatting_diffs(formatted_text, reformatted_text); |
| std::ostringstream diff_stream; |
| diff_stream << formatting_diffs; |
| std::ostringstream lines_stream; |
| lines_stream << lines; |
| return absl::DataLossError( |
| absl::StrCat("Re-formatted text does not match formatted text; " |
| "formatting failed to converge! Please file a bug.\n" |
| "Original: --lines: ", |
| lines_stream.str(), "\n", original_text, // |
| "Formatted:\n", formatted_text, // |
| "Re-formatted:\n", reformatted_text, // |
| "Diffs are:\n", diff_stream.str())); |
| } |
| return absl::OkStatus(); |
| } |
| |
| } // namespace verible |
