Lox1 is a tree-walking interpreter written in C++20, it implements a garbage-collected language based on the Lox language described in Bob Nystrom's book Crafting Interpreters.

libfmt >= 9

Supported compilers are GNU C++ and Clang. Code is known to build and function correctly when compiled with gcc-12 or clang-15.

cmake -S path_to_source_directory/ -B path_to_build_directory/
cmake --build path_to_build_directory/

Tests can be run by executing

path_to_build_directory/testdriver path_to_build_directory/lox1 path_to_source_directory/r_test

Only GNU C++ is supported with MSYS2. Code is known to build and function correctly when compiled with gcc-12 on Windows 10.

cmake -S path_to_source_directory/ -B path_to_build_directory/
cmake --build path_to_build_directory/

Tests must not be run using msys runtime

Some tests may "fail" due to Windows reordering stderr with stdout

path_to_build_directory/testdriver.exe path_to_build_directory/lox1.exe path_to_source_directory/r_test

Code is known to build and function correctly when compiled with MSVC v142 for Windows 10.

Select MSVC by specifying Visual Studio edition as the generator.

cmake -S path_to_source_directory/ -B path_to_build_directory/ -G "Visual Studio 16 2019"
cmake --build path_to_build_directory/

Building the test driver used for tests is not supported with MSVC.

Give no arguments for REPL mode, or a path to file to execute it.