55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2023 Google LLC. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#ifndef GOOGLE_PROTOBUF_COMPILER_RUST_RELATIVE_PATH_H__
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#define GOOGLE_PROTOBUF_COMPILER_RUST_RELATIVE_PATH_H__
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#include <string>
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#include <vector>
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#include "absl/algorithm/container.h"
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#include "absl/log/absl_check.h"
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#include "absl/strings/match.h"
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#include "absl/strings/string_view.h"
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace rust {
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// Relative path using '/' as a separator.
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class RelativePath final {
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public:
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explicit RelativePath(absl::string_view path) : path_(path) {
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ABSL_CHECK(!absl::StartsWith(path, "/"))
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<< "only relative paths are supported";
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// `..` and `.` not supported, since there's no use case for that right now.
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for (absl::string_view segment : Segments()) {
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ABSL_CHECK(segment != "..") << "`..` segments are not supported";
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ABSL_CHECK(segment != ".") << "`.` segments are not supported";
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}
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}
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// Returns a path getting us from the current relative path to the `dest`
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// path.
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//
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// Supports both files and directories.
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std::string Relative(const RelativePath& dest) const;
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std::vector<absl::string_view> Segments() const;
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bool IsDirectory() const;
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private:
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absl::string_view path_;
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};
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} // namespace rust
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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#endif // GOOGLE_PROTOBUF_COMPILER_RUST_RELATIVE_PATH_H__
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