trjhtr

I have very little experience with cmake, this is really the first time I used it for a project. In the past I used some autotools and recently mostly bazel. I would appreciate some suggestions how to better structure the code. For example during compilation I noticed that the same targets get compiled multiple times, which ideally I would like to avoid.

cmake_minimum_required(VERSION 3.10)
project(schwifty)

set(CMAKE_CXX_STANDARD 14)

set(CMAKE_CXX_FLAGS "$CMAKE_CXX_FLAGS -DELPP_FEATURE_CRASH_LOG")

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY $CMAKE_BINARY_DIR/out)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY $CMAKE_BINARY_DIR/out)

find_package(PythonInterp 3.6 REQUIRED)

file(MAKE_DIRECTORY downloads external)

################################################################################
# Easylogging++
################################################################################
if(EXISTS "external/easyloggingpp")
else()
file(MAKE_DIRECTORY external/easyloggingpp)
file(DOWNLOAD
 https://github.com/muflihun/easyloggingpp/archive/v9.96.4.zip
 downloads/easyloggingpp.zip)
execute_process(COMMAND unzip downloads/easyloggingpp.zip -d downloads)
file(GLOB easyloggingpp_files downloads/easyloggingpp-9.96.4/src/easylogging++.*)
file(COPY $easyloggingpp_files DESTINATION external/easyloggingpp)
endif()

set(ast ast.h ast.cc)
set(codegen codegen.h codegen.cc)
set(functions functions.h functions.cc)
set(parser parser.h parser.cc)

include_directories(external/easyloggingpp)
set(easyloggingpp external/easyloggingpp/easylogging++.cc)

set(SOURCE_FILES
 ast_compare_visitor.cc
 ast_compare_visitor.h
 classes.cc
 classes.h
 compilation_context.cc
 compilation_context.h
 common.h
 errors.h
 errors.cc
 expression_type_visitor.cc
 expression_type_visitor.h
 functions.cc
 functions.h
 jit.cc
 jit.h
 lexer.cc
 lexer.h
 lexer_common.cc
 lexer_common.h
 runtime.h
 runtime.cc
 utils.h
 utils.cc
 type.cc
 type.h
 type_inference_visitor.cc
 type_inference_visitor.h
 enum.cc
 enum.h
 type_inference.cc
 type_inference.h
 operators.cc
 operators.h
 symbol_visitor.cc
 symbol_visitor.h)

add_library(sources $SOURCE_FILES)

find_package(LLVM REQUIRED CONFIG)

message(STATUS "Found LLVM $LLVM_PACKAGE_VERSION")
message(STATUS "Using LLVMConfig.cmake in: $LLVM_DIR")

include_directories($LLVM_INCLUDE_DIRS)
add_definitions($LLVM_DEFINITIONS)

llvm_map_components_to_libnames(llvm_libs all)

find_package(FMT REQUIRED CONFIG)

add_executable(schwifty
 schwifty.cc
 $ast
 $codegen
 $easyloggingpp
 $parser)

target_link_libraries(schwifty $llvm_libs)
target_link_libraries(schwifty fmt::fmt)
target_link_libraries(schwifty sources)

################################################################################
# Testing
################################################################################

enable_testing()
find_package(gtest REQUIRED)

include_directories($GTEST_INCLUDE_DIRS)

add_executable(codegen_test codegen_test.cc $ast $codegen $easyloggingpp
 $functions $parser)
target_link_libraries(codegen_test $GTEST_BOTH_LIBRARIES)
target_link_libraries(codegen_test $llvm_libs)
target_link_libraries(codegen_test fmt::fmt)
target_link_libraries(codegen_test sources)
add_test(codegen_test COMMAND out/codegen_test)

add_executable(lexer_test lexer_test.cc $ast $codegen $easyloggingpp
 $functions $parser)
target_link_libraries(lexer_test $GTEST_BOTH_LIBRARIES)
target_link_libraries(lexer_test $llvm_libs)
target_link_libraries(lexer_test fmt::fmt)
target_link_libraries(lexer_test sources)
add_test(lexer_test COMMAND out/lexer_test)

add_executable(parser_test parser_test.cc $ast $codegen $easyloggingpp
 $functions $parser)
target_link_libraries(parser_test $GTEST_BOTH_LIBRARIES)
target_link_libraries(parser_test $llvm_libs)
target_link_libraries(parser_test fmt::fmt)
target_link_libraries(parser_test sources)
add_test(parser_test COMMAND out/parser_test)

add_executable(type_test type_test.cc $ast $codegen $easyloggingpp
 $functions $parser)
target_link_libraries(type_test $GTEST_BOTH_LIBRARIES)
target_link_libraries(type_test $llvm_libs)
target_link_libraries(type_test fmt::fmt)
target_link_libraries(type_test sources)
add_test(type_test COMMAND out/type_test)

add_executable(type_inference_test type_inference_test.cc $ast $codegen
 $easyloggingpp $functions $parser)
target_link_libraries(type_inference_test $GTEST_BOTH_LIBRARIES)
target_link_libraries(type_inference_test $llvm_libs)
target_link_libraries(type_inference_test fmt::fmt)
target_link_libraries(type_inference_test sources)
add_test(type_inference_test COMMAND ./out/type_inference_test)

add_test(NAME end_to_end_tests WORKING_DIRECTORY $CTEST_SOURCE_DIRECTORY
 COMMAND $PYTHON_EXECUTABLE $CTEST_SOURCE_DIRECTORY/end_to_end_tests.py)