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90 lines
2.5 KiB
90 lines
2.5 KiB
/*
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* Copyright (C) 2015, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "import_resolver.h"
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#include "aidl_language.h"
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#include "logging.h"
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#include <algorithm>
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#include <android-base/file.h>
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#include <android-base/strings.h>
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#include <unistd.h>
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#ifdef _WIN32
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#include <io.h>
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#endif
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#include "os.h"
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using std::string;
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using std::vector;
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namespace android {
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namespace aidl {
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ImportResolver::ImportResolver(const IoDelegate& io_delegate, const string& input_file_name,
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const set<string>& import_paths, const vector<string>& input_files)
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: io_delegate_(io_delegate), input_file_name_(input_file_name), input_files_(input_files) {
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for (string path : import_paths) {
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if (path.empty()) {
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path = ".";
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}
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if (path[path.size() - 1] != OS_PATH_SEPARATOR) {
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path += OS_PATH_SEPARATOR;
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}
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import_paths_.push_back(std::move(path));
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}
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}
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string ImportResolver::FindImportFile(const string& canonical_name) const {
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// Convert the canonical name to a relative file path.
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string relative_path = canonical_name;
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for (char& c : relative_path) {
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if (c == '.') {
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c = OS_PATH_SEPARATOR;
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}
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}
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relative_path += ".aidl";
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// Look for that relative path at each of our import roots.
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vector<string> found_paths;
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for (string path : import_paths_) {
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path = path + relative_path;
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if (io_delegate_.FileIsReadable(path)) {
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found_paths.emplace_back(path);
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}
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}
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// remove duplicates
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std::sort(found_paths.begin(), found_paths.end());
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auto last = std::unique(found_paths.begin(), found_paths.end());
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found_paths.erase(last, found_paths.end());
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int num_found = found_paths.size();
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if (num_found == 0) {
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return "";
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} else if (num_found == 1) {
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return found_paths.front();
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} else {
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AIDL_ERROR(input_file_name_) << "Duplicate files found for " << canonical_name << " from:\n"
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<< android::base::Join(found_paths, "\n");
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return "";
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}
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}
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} // namespace aidl
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} // namespace android
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