58 lines
2.2 KiB
CMake
58 lines
2.2 KiB
CMake
cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)
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# prevent multiple inclusion
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if(DEFINED REFLECTION_GENERATOR_MODULE_LOADED)
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return()
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endif()
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set(REFLECTION_GENERATOR_MODULE_LOADED YES)
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# find code generator
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set(REFLECTION_GENERATOR_EXECUTABLE reflective_rapidjson_generator)
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if(CMAKE_CROSSCOMPILING OR NOT TARGET "${REFLECTION_GENERATOR_EXECUTABLE}")
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# find "reflective_rapidjson_moc" from path
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find_program(REFLECTION_GENERATOR_EXECUTABLE "${REFLECTION_GENERATOR_EXECUTABLE}")
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endif()
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if(NOT REFLECTION_GENERATOR_EXECUTABLE)
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message(FATAL_ERROR "Unable to find executable of generator for reflection code.")
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endif()
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# define helper functions
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include(CMakeParseArguments)
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function(add_reflection_generator_invocation)
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# parse arguments
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set(OPTIONAL_ARGS)
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set(ONE_VALUE_ARGS OUTPUT_DIRECTORY)
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set(MULTI_VALUE_ARGS INPUT_FILES GENERATORS OUTPUT_LISTS)
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cmake_parse_arguments(ARGS "${OPTIONAL_ARGS}" "${ONE_VALUE_ARGS}" "${MULTI_VALUE_ARGS}" ${ARGN})
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# determine file name or file path if none specified
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if(NOT ARGS_OUTPUT_DIRECTORY)
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set(ARGS_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/reflection")
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file(MAKE_DIRECTORY "${ARGS_OUTPUT_DIRECTORY}")
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endif()
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foreach(INPUT_FILE ${ARGS_INPUT_FILES})
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get_filename_component(OUTPUT_NAME "${INPUT_FILE}" NAME_WE)
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set(OUTPUT_FILE "${ARGS_OUTPUT_DIRECTORY}/${OUTPUT_NAME}.h")
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message(STATUS "Adding generator command for ${INPUT_FILE} producing ${OUTPUT_FILE}")
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add_custom_command(
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OUTPUT "${OUTPUT_FILE}"
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COMMAND "${REFLECTION_GENERATOR_EXECUTABLE}"
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-o "${OUTPUT_FILE}"
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-i "${INPUT_FILE}"
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-g ${ARGS_GENERATORS}
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DEPENDS "${INPUT_FILE}"
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WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
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COMMENT "Generating reflection code for ${INPUT_FILE}"
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)
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# append the output file to lists specified via OUTPUT_LISTS
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if(ARGS_OUTPUT_LISTS)
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foreach(OUTPUT_LIST ${ARGS_OUTPUT_LISTS})
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list(APPEND "${OUTPUT_LIST}" "${OUTPUT_FILE}")
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set("${OUTPUT_LIST}" "${${OUTPUT_LIST}}" PARENT_SCOPE)
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endforeach()
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endif()
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endforeach()
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endfunction()
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