CLion 2020.2 Goes Beta: CMake PCH, Opening Project from a Generated Folder, and Performance Improvements

Anastasia Kazakova

CLion 2020.2 has reached Beta! To install build 202.6397.12, download it from the website, update from our Toolbox App, get it through a snap package (if you are using Ubuntu), or use a patch update.

DOWNLOAD CLION 2020.2 BETA

CMake Precompiled Headers

CLion has supported precompiled headers for a while, but this didn’t cover all the cases. In this EAP build, we’re adding support for the MSVC Force Include option (CPP-21063) and for CMake 3.16 PCH. In the latter case, code navigation and highlighting for symbols from the precompiled headers added via the PRECOMPILE_HEADERS and/or INTERFACE_PRECOMPILE_HEADERS properties of a CMake target now works in CLion.

Please note there are some limitations affecting Cygwin/WSL/Remote toolchains (CPP-21192).

Open project from CMake generated folder

When a CMake folder has already been generated for your project, CLion can now open the project without regenerating the folder. This should be a great time-saver. This feature previously worked only for the Makefile generator, but now it is supported for all generators (like Ninja, or others).

Clang-Tidy configuration

You can set Clang-Tidy configuration files to take precedence over the IDE settings. To do so, go to Settings/Preferences | Editor | Inspections | C/C++ | General | Clang-Tidy and select the Prefer .clang-tidy files over IDE settings option. We have slightly reworked CLion’s behavior in this case:

• CLion tracks all .clang-tidy files in the project directory.
• When analyzing the source file:
  • If there’s a reachable .clang-tidy file (located in the current directory or in one of the parent directories), CLion uses the settings from that file.
  • Otherwise, CLion relies on its own settings.

Other enhancements

• Fix for the UI freeze during the reformat code operation (CPP-20925).
• Fix for the UI freeze when highlighting the code in the Find Usage dialog (CPP-17472).
• Doxygen’s @a and @c tags are now rendered correctly in the Quick Documentation popup (CPP-18485).

The full list of fixes can be found in the release notes here.

Our previous EAP builds introduced the following enhancements:

• Makefile projects support
• Doctest unit testing framework integration
• Code coverage enhancements
• Support for Git installed in WSL2
• Dangling pointer analysis
• More accurate C++20 support

DOWNLOAD CLION 2020.2 BETA

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