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Pull Request Overview
This PR upgrades the codebase to require C++20 as the minimum standard for extension builds. The change modernizes the codebase by replacing older C++17 constructs and string formatting approaches with C++20 features.
Key changes:
- Updates minimum C++ standard requirement from C++17 to C++20
- Replaces
std::ostringstreamstring formatting with C++20std::format - Modernizes template syntax using C++20
requiresclauses instead of SFINAE - Updates build configuration and CI workflows to use C++20
Reviewed Changes
Copilot reviewed 20 out of 20 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| CMakeLists.txt | Updates minimum C++ standard requirement from 17 to 20 |
| src/treespec/unflatten.cpp | Replaces ostringstream with std::format, adds std::span usage |
| src/treespec/treespec.cpp | Extensive modernization with std::format, std::span, std::ranges, and constinit |
| src/treespec/traversal.cpp | Updates string formatting to use std::format |
| src/treespec/serialization.cpp | Uses std::unordered_map::contains instead of find comparison |
| src/treespec/richcomparison.cpp | Replaces std algorithm calls with std::ranges equivalents |
| src/treespec/hashing.cpp | Uses std::unordered_map::contains for cleaner code |
| src/treespec/flatten.cpp | Comprehensive string formatting updates and template parameter renaming |
| src/treespec/constructors.cpp | String formatting modernization and std::ranges usage |
| src/registry.cpp | Updates string formatting and replaces PYBIND11_CONSTINIT with constinit |
| src/optree.cpp | String formatting updates and constinit usage |
| include/optree/treespec.h | Updates function signatures to use std::span and modernizes template parameters |
| include/optree/pytypes.h | Adds std::formatter specializations and modernizes template syntax with requires clauses |
| include/optree/pymacros.h | Replaces PYBIND11_CONSTINIT with constinit |
| include/optree/exceptions.h | Major refactoring using std::source_location and std::format for error handling |
| README.md | Updates documentation to reflect C++20 requirement |
| CPPLINT.cfg | Adds whitespace/braces filter |
| .github/workflows/tests.yml | Removes C++17 compatibility test |
| .github/workflows/lint.yml | Updates clang-tidy to use C++20 |
| .clang-format | Updates standard from c++17 to c++20 |
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #235 +/- ##
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Coverage 100.00% 100.00%
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Files 14 14
Lines 1416 1416
Branches 175 175
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Hits 1416 1416 Flags with carried forward coverage won't be shown. Click here to find out more. ☔ View full report in Codecov by Sentry. |
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Description
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Motivation and Context
Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.
You can use the syntax
close #15213if this solves the issue #15213Types of changes
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xin all the boxes that apply:Checklist
Go over all the following points, and put an
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make format. (required)make lint. (required)make testpass. (required)